What's the Mileage on your ZR-1(s)?

[93RubyZ]

As part of my research: http://www.zr1netregistry.com/forum/showthread.php?t=3159, I'm looking for reliability data on as many ZR-1's as I can get.

I would like to know the mileage on your ZR-1(s) as well as the year. Please list both pieces of information for each ZR-1 you own. If you prefer not to post here, you can also send it to me via PM. Whatever information I get here will become my data sample size, so the more responses I get the better. I will not associate the data provided to specific cars.

Also, for the reliability aspect, if you have had any major failures of either the LT-5 engine or transmission, I would like to know that as well. By major failure, I mean a failure that has caused either a complete rebuild or replacement. If anyone has had any of these failures, I will probably have more specific questions for them.

I will be asking this question here and at the Net Registry, so for those that post at both places, please only reply at one location so I don't double count. Thanks!

[93RubyZ]

I'll go first,

1993
61,000 miles
No engine or transmission failures

[tomtom72]

Cool I'll go second!

90, #2233, black over grey, 21,561

No motor or other drive train failures......but plenty o gremlins to keep me chasing down stuff....unless injectors count? Other than that mostly all the stuff in the "common issues" section @ the Net Reg site.

:mrgreen:
Tom

just an update on 90/2233, up to 46,000 + miles and still no major failures. It just needs to have some of it's inherent slowness removed....I think if I drove it less, it would seem quicker! LOL

another update: 51,514 3/23/2012 still nothing major to report.

[Hammer]

1991 #458 Second Owner 69,000 miles
Got it with 64,292 miles, no problems.
Previous Owner History Unknown

[ralph92ZR1]

1992 ZR-1

18500 miles

No major breakdowns.

Have only had to replace leaking oil cooler line...knock wood.

[bobbyhi]

1990 ZR-1

Just turned 64,000 last Saturday.

Replace transmission @ 60,000. No other major problems.

[GrayZ]

1990 ZR1 #74....Black/Gray... 25,000........No Major Problems.:mrgreen:



Except for, welll....ahh......Excessive Rear Tire Wear. :-D

[DaveK]

1991 - 33000 - Black/Black. No problems.

[Aurora40]

1990 - 29,500 miles (just racked up 1,500 on it on a trip). Only real failure was the injectors and the secondary vacuum hoses. Though at WOT the car was still strong.

[BBBAD94ZR1]

1994 White 12,800 miles
1995 Bright aqua blue, 445 miles.
No issues
Ray

[Norsky4360]

1990 #682, Second Owner, 7,700 miles (currently)

Purchased it late in the fall of 2006 with 7,500 miles, no mechanical problems so far. Replaced the lower radiator hose to cure a leak and replaced a couple blown fuses. Audio system needs an overhaul (like there's a news item!)

Previous Owner Service History Unknown other than the seat belt recall notice was not taken care of.

[LeoLily]

1990 turquoise/black #2468
13,800 miles
nothing major - just the dreaded oil leak... :-({|=

[zr-1assassin]

1990 #2656 BLK/BLK 34,212 miles, only thing i would call major is had the clutch replaced

[Belsy]

We have 2 here: '90 Black w/ Red at 30,000 miles, this one is the show and keep car. Also a '91 Red on Red w/ 90,000 miles and we drive it everywhere distance is a factor.
Have to say the 90k car runs as good, considering mileage, as the 30K car and it may be at BG for sale for $ 17,500!!
Gene in Florida

[Artic93]

1993 Artic/Black #189 14320 miles stock no mods

[tccrab]

1990 red/saddle 11,500 miles
fuel injector failure, dreaded no start (fixed)

[1990 quasar blue]

1990 23,700 miles, waterpump.

I forgot about the clutch slave and vac. spyder assembly.

[RedSled]

1990, 22,000, Red/Red #1383. No engine/trans issues knock wood. Recent water pump and oil cooler line replacement.

Cheers, Keith

[Kevin]

55,000 I think now.
Fuel injectors
water pump
headlight gears
backup light switch
rad...well many rads
no start
vacuum leaks
other stuff I'm forgetting
radio
amps
water leaks
antenna

[RICHARD TILL]

1990 red/red #2161 113,000 miles. no major issues except starter replacement and radio repair. drove it 260 miles last sunday to super chevy in memphis and got 22.7 mpg......

[tf95ZR1]

1995 ZR1 #106
About 65,000 on the meter, but the engine was replaced by GM at about 25,000 miles when owned by a previous owner. Supposedly some sort of oil problem- they often just replaced instead of repaired the LT5. DUNN Baby!
Lets not go there...........

[yellow92zr1]

1992 #405, 107000 miles, transmission, water pump, starter, coil pack, secondary port throttle actuator,

[91King]

65,000 miles, no major issues.

[SharkPilot]

24,444 on mine as of yesterday. It runs great and is vey reliable. I drive it nearly every day and it's always ready and happy to go. :cheers:
I have replaced two coil packs and a clutch master. Will do the slave as soon as I take it apart and reverse the seal.

SharkPilot

[buddyboy]

1992 #330 White on White has 42,000 on the clock and still counting. No problems except for tire wear on the rear.


1992 #330 white/white

[rbidwell]

I have 138,893 miles. SGC 368 done at around 134,000 while the engine was still running good. I have relaced both fuel pumps, injectors, vacuum pump, water pump, had radio repaired by Dr Don, replaced air conditioner compressor with later model and 134a. Had car repainted due to damage from shipping to SGC. Replaced started due to water getting in valley from water pump problem (one leaf covered the drain hole). I have no record as to problems before 132,000 miles as that is what the car had on it when I purchased it. I can tell you that it appears that the engine had never been apart.

Ron Bidwell

[93RubyZ]

Thanks for all the replies!!! Please keep them coming for those that may not have replied yet. This will be one of the most important pieces of data that I need, so the more the better.

[Jerry#397]

93 ZR-1 White, 80,000 miles. Many minor items, large items - replaced the differential as the previous owner had installed the wrong gear set. Replaced the drive shaft with the 95. Transmission could use the syncros replaced and maybe some bearing work. Replaced the engine torsion dampener at 77,000mi.

Thanks,
Jerry

[dmjr0064]

95

2200 miles

no problems

[polo90]

1990 ZR-1, #2545, 19705 Miles, No Major Failures

[93RubyZ]

I have 138,893 miles. SGC 368 done at around 134,000 while the engine was still running good. I have relaced both fuel pumps, injectors, vacuum pump, water pump, had radio repaired by Dr Don, replaced air conditioner compressor with later model and 134a. Had car repainted due to damage from shipping to SGC. Replaced started due to water getting in valley from water pump problem (one leaf covered the drain hole). I have no record as to problems before 132,000 miles as that is what the car had on it when I purchased it. I can tell you that it appears that the engine had never been apart.

Ron Bidwell

Ron, can you tell me what year your car is? Thanks!

Thanks again to all that are contributing data!! :thumbsup:

[rbidwell]

Ron, can you tell me what year your car is? Thanks!

Thanks again to all that are contributing data!!

Sorry I didn't mention the year. It is a 1990 red/red.

Ron Bidwell

[40th#381]

I have an Anniversary Model with 39,700. on it.

Bought new July '93

[93RubyZ]

So far 88 ZR-1s have been accounted for. The highest mileage is 166,000 and the lowest is 37. Here is what the distribution looks like:

http://i11.tinypic.com/4zumah5.jpg

[jonszr1]

have 2 again just bought another red /blk one with 148k off original owner so cal car .have all paper work clutches 2and inj,coils other than that cool. blk car bought 68k now 3yrs later 133k clutch injsince i have had .before no clue but she still runs strong and only eats 1/4 qt of oil every 2k, when I change.

[flyin ryan]

my 90 has 18,000 miles on it. when i bought it last July the service engine light was on. turned out to be a bad Derm module. CDN part no: 10094618...discontinued. sent the airbag computer to Airbag Systems in Allen, Texas. had it back & in the car in less than a week. no other previous issues that i know about.
my 95 has 9900 miles on it. it had the windshield replaced under GM warranty in 11/30/2000 with 9112 miles on it. i find this interesting. in service date was 12/05/1994:icon_scra .
my 93 has 13,825 miles. haven't received the car yet but all the records i dug up indicate no problems under warranty or otherwise...yet:o.

[guinnessdood]

My Red/Saddle 1990 #120 has 41,000 miles. It has numerous mods. Issues to date: Injectors were fine until I had them cleaned and tested...now they leak, Replaced the DIS module, replaced the ECM, replaced an intermittent wire to the crank sensor, new clutch, new front and rear wheel bearings, new steering rack, new Ron Davis radiator (old one blew because of the incorrect thermostat)....that's about it. Runs good!

[guinnessdood]

Duplicate post

[John Boothby]

Mine is a 1990 #148 with 70,982 on the OD. The following have been replaced:

Clutch master & slave (twice); starter; A/C clutch; Injectors (with RC 205's); Plug wires; MAP; Secondary vac actuator; Front airbag sensors; Driver's side mirror switch.

Maintanence is performed: Oil at 3 mos; all other fluids at 12 mos.

Car is running great and driven twice a week or so.

[TeK_NoiR]

1990 - 39000 Miles and engine in best condition.

[WB9MCW]

92 @ 61K miles

Clutch
small oil leak from header stud (need to reseal--common problem)
antenna
emer. brake lever
backup light switch (still need to do)
cd player--rest of radio is OK
windshield delam

that is it!:thumbsup:

[ZR-1 Franz]

Hello from Switzerland,

'90 ZR-1, 20227 Miles (32545 km)
but also
'78 Anniversary, 11003 Miles (17704 km)
'91 L-98 Coupe with all options, six speed, 2161 Miles (3478 km)

as you can see, the ZR-1 is the favorite!

Daily cruisers are a Land Rover Discovery V8 and a Chevy Pickup K-3500 with a 454 c.i. engine.

[actuary67]

Here goes:

1992
28,000 miles

I've owned it since last June, and recently had the clear (bronze) top refurbished, as it had a star crack on the passenger side. I had a new body control module installed last year, as the old one had failed and none of the backlit dash lights worked (this part was nearly impossible to locate!). I had the rear speakers rebuilt last fall.

The previously owner provided me with documentation of major repairs, include a transmission replaced (20,900 miles); rear end, PCV valve, power steering pump, and clutch master cylinder replaced (19,500 miles); three injectors and stereo head unit replaced (17,500 miles) -- all replaced under warranty.

She's running great now (knock on wood!)

[BROOMRIDER1991ZR1]

1991 #477 88k.....Runs Awesome :mrgreen:

[vinsZR-1]

90 Red/Red #1966
6,485 miles
No issues

Vince

[Hammer]

1991 Red/Black
34,000 miles
1st Gear Synchro Bad
(Caused by Previous Owner)

[Paul Workman]

1990 red/red-black, 43k miles

Sleeved the intake duct (was collapsing at WOT)
water pump
new GM coils/wires (mouse damage - previous owner)
fuel pumps/filter
U-joints on drive shaft
clutch (part of R&R with Fidanza upgrade)
serpentine belt
injectors (went with new Accels...Love 'em!)
Gaskets and seals as part of full porting and exhaust mods

Runs like...OH BABY OH BABY OH BABY!!...YEEEHAW!:dancing
Rear tires don't stick in first or second gears worth a darn...go figure.

:cheers:

P.

Add: Low (oil) pressure switch; only a $10 part, but a MFer to get to!
Adding new carpet - soon as it warms up a bit.

[Bob G]

1994 17000 no parts failures

[LGAFF]

92 #234-23K
90 #966-140K, bad rings

[tomcat]

Hello,
My 91 Blk/Blk has 140k. She gets the attention of Lambo, Ferrai & S7's owners.

Manfred E...........:fahne:
http://pnwzr1.net

[detch]

95 #338 34000 miles and no problems=D>

[hiperf406]

My 91 #1748 has 23,000 miles on it. Replaced master & slave cylinder 7 yrs ago, bought new injectors but haven't installed them yet. Runs great. lorne

[Coupe89]

1990 #642 has 83K miles. No major problems.

[rhipsher]

Red on red 90 just turned 90,000 miles. Bought with 65,000. Engine and transmission are like a rock. Never any problems except for normal wear and tear items like bushings and one bent/twisted clutch fork.

[JThomas]

1992 #068 Purchased two years ago with 97,000 miles. Currently the car has 106,700 miles.

I am the third, maybe fourth owner of the car. Unknown previous history, but I have replaced most vaccum lines under the plenum, starter, emergency brake lever, altenator, one valve for secondaries, vacuum pump, primary fuel pump and injectors.

[4-cam]

1991 #31 BLK/ Grey..... 43000 mi. Will get injectors this winter

[bdw18_123]

1990 white/red #2299. Currently has 139,376 miles. Purchased with broken driver's side secondary timing chain and engine partially disassembled.

From what I have discovered so far, I believe this was most likely caused by driving it with an ECM that was causing bad misfiring, though I don't have direct proof of that. The ECM was previously replaced back in 2001 (most likely for the same reason). Carfax shows that the last smog test failed, probably because of the bad ECM.

Damage turned out to be minimal considering the type of failure. Just a couple of bent valves and some scoring on the oil pump, no damage to the block or either of the heads. As of today, it still isn't running, I am in the process of repairing/restoring this ZR-1.

[jcruz]

91 #987 55k miles. Runs great, no major problems since I purchased it last February.

[Don in VT]

Hi

My wife's 90 ZR1 has 34K. New clutch in Sept this year. Runs great. Down for the Vermont winter.

Merry Christmas

Don in VT

:fahne:

[Rex Ruby]

1994 W/ 53k Bought 2/04 with 30850 mileage
04/09/04 31546 Replace: Vacuum harness under the plenum
Reverse light switch
Serpentine belt
Drain and Fill rear with Mobil 1 and GM Additive

04/15/04 31549 R & R Plenum correct vacuum leak and new gaskets

04/30/05 31715 Install factory correct stock chip

05/29/04 31908 R+R Throttle body and air horn. Clean paint and
install new gaskets
Rebalance front wheels

04/23/05 33645 Install Hurst Shifter

06/25/05 34344 Install new shifter weather boot under console

09/10/05 35750 Replace half shaft U Joints

03/24/07 38695 Install Sylvana Silver Star Headlights

06/26/07 40285 Replace key fob battery DL2450

04/26/08 41815 Replace IAT sensor

07/01/08 43250 Installed Marc Hiabeck Chip

07/10/08 43290 Coolant system service. R & R radiator cleaned
New coolant fill tank and new plug on wire harness
for coolant level sensor (on tank)
New AF w/ distilled water (5 yr. AF)

11/29/08 45682 Used a non-recommended AF in 7/10 service above
Replaced AF w/ GM spec 1825-M
Oil + Filter

03/09/09 46788 Removed Borla resonator and installed X Pipe

08/22/09 48653 R&R HVAC head unit and clean button contacts

03/26/10 50029 R&R Plenium repaired vac leak.
Replaced vac reserve canister that I broke
Replace MAP vac hose

08/22/10 52285 Replaced alternator and serp belt

09/05/10 53030 Replace K&N air filter w/ AC Delco

(Left out oil changes and yearly state inspections)

[soslow]

1990, black/black
8100 miles
Over the past few years;
all new injectors due to sitting too much(my fault for not using car enough)
New prom to fix high idle
Replaced air bag module behind dash
Disconnected dash lite for LTPWS
eliminated 1 to 4 shift nonsense
third brake light went out
Put on new Goodyears, the originals dried out
Changed all fluids
Rebuilt all stereo speakers
OTHER THAN THAT, MY CAR ROCKS

SOSLOW

[todesengel]

My sons 1990 has 38k on the clock

[Brillo1990]

1990 #2085 21,000 miles
Water pump replaced because of noise by previous owner, he wasn't even sure if it was the problem but noise went away. :)
No other issues that I know of but I may be replacing the injectors for peace of mind. Drove it from Pensacola to Iowa last week with no issues other than salt on the roads. :mad:

[Cdn ZR1 95]

Great list at the end. Thx

[WB9MCW]

Idea for DYNO

Since the NO1 failure is the Injectors maybe a special post on Injectors is in order.

Start with the poll - HAVE YOUR INJECTORS FAILED YET?
Box 1 - NO
Box 2 - Yes at under 10,000 miles
Box 3 - Yes at 10K to 25K miles
Box 4 - Yes at 25k to 50K miles
Box 5 - Yes at 50K to 75K

you get the idea and in the text post the owner could tell us what year ZR-1 and which brand of injectors they replaced with and any other notes on their project.

I am interested as to when the various MY's fail due to the 10% Ethanol on average.

We know the MY 93 and up are supposed to be OK with Ethanol ---Right??

I see a lot of 90 and 91 MY's going out and I figure it is just a matter of time for my 61K -- MY92 to have the ETHANOL INJECTOR BLUES

[Locobob]

My 368 is a little shy of 80K, think I have replaced almost everything in the entire car at least once :mrgreen:

[sammy]

my 90 has 160k on her now and have replaced the injectors @90k as well as the clutch and went to fidanza flywheel , @ 120 replaced the trannt with one of bill b blueprinted ones after mine failed also replaced the ujoints with the 799 series spicer.. now i need to replace the heater core ugh....

[C4Fanatic]

42,000

Previous owner replaced all injectors and a coil pack. Other than that, not sure of any major work.

[SteelBlueZR1]

Reviving an old thread...
1991 Steel Blue ZR1 #1029
6,200 miles (Car sat for 20 years)
fuel injectors replaced, replaced leaking oil cooler lines, vacuum hoses, spark plugs and change fluids and tires.

[RHanselman]

Well, why not...

1991 ZR-1 #383 Blk/Blk - 16K miles, new trans @ 8K, injectors @ 4k
1993 ZR-1 #099 Ruby - Jeal 368 - 40k miles, Jeal motor @ 31k miles. No issues
1993 ZR-1 #140 Ruby - Stock w/B&B's, 71K miles, clutch slave last week
-----------------------------------------------
1991 ZR-1 #130 White/Gray - (sold) 26k through-out bearing@ 21k
1993 ZR-1 #203 Ruby/Ruby - (sold) 65k no issues
1990 ZR-1 #2196 Black/Gray - (sold) 24k miles, inj @ 20k, clutch slave @ 19
1993 ZR-1 #260 Ruby/Ruby - (sold) 20k, no issues

Cheers,
RH

[rhipsher]

1990 red on red #1931
97,000 miles never any engine or transmission problems.
Runs perfect in every way.

[robrtr]

92 Black/Gray #225 8600 mi.
No issues mechanically. Bose radio needs rebuilding. Just replaced the right rear amp with one from a '98 Nissan Maxima. Works great. Thanks, guys, for that money saving tip.

Ralph

[Jetjock]

I have a 1992 Black ZR-1 with about 95,000 miles on it. I had to replace the injectors, clutch, spark plugs, hoses, starter, alternator and shocks. The guy who had it didn't spend any money on it and just ran it. Had to replace the amps and rebuild the stereo.


Roy L. Carman
1992 Black ZR-1 #423

[jimmy b.]

1994 # 239 28,000 miles

No major problems, ignition coils last year and by-passed clutch starter switch.

[Jim Nolan]

1992 Red/Red #0412, 34.5k Replaced injectors, plugs, oil cooler lines, seat motors (both sides) speaker amps all 4 and hoses.

[Blue Flame Restorations]

1991 #2021

55k miles

[avijay]

1991
14k

[efnfast]

1990, #1786, currently has 39000 miles. I bought it at 35k. I have no prior history. I've done clutch slave and master cylinder.

[902066]

1990 #2066, red with grey interior. Bought in 2000 with 4800 miles, now has 12,000.

[carmine]

1990 #357 Blk. Gray 22898 Miles 2and Owner Just Did Injectors

[C4Fanatic]

Just an update from January 2011.

After I posted that I drove it like I stole it.
Went Wichita to Salt Lake City in late March, then went SLC to NorCal for a cruise up the coast with the NorCalVettes crew. Then NorCal back to SLC. SLC to Vegas. Vegas to LA, tooled around LA in it during the month of May. LA back to Wichita in late May. June it went to Marengo, IA and from there we attended Bloomington Gold. Then in early October we went to the Eureka Springs Corvette weekend. The mileage is up to 53,000.
After Eureka Springs I had to do a plenum pull and search for a vacuum leak. She's back together and running strong, just normal maintenance...and she's getting a new air dam in a week or so, imagine that.

[Anniv88]

1990 #164 Just injector failure. Nothing else.

[Mahogaraunch]

1990 with 6800mi. Had to replace all 16 injectors and the secondary fuel pump. Thats it so far..

[todesengel]

1990 lingenfelter 465 package 42,000 miles

injectors
u-joints
rear brake calipers
fuel pumps
thermostat
coils

[JThomas]

1995 #152, Bright Aqua w/ Gray interior. Purchased in December with 12,124 miles. Car currently has 12,200 miles.

[RICKYRJ1]

1995 #152, Bright Aqua w/ Gray interior. Purchased in December with 12,124 miles. Car currently has 12,200 miles.

If I didn't know different I would say you stole that car [-X You made a great deal on that one, now go out & ENJOY, put some miles on her! Hope to see you in BG :handshak:

[JThomas]

If I didn't know different I would say you stole that car [-X You made a great deal on that one, now go out & ENJOY, put some miles on her! Hope to see you in BG :handshak:

Yes I am happy with the deal, it's that "jewel" of a Corvette I've been looking for. Ordered new tires for it and a glass roof this past week. (Need the extra head room) Drove it all day yesterday, and I will have it in Bowling Green this year. See you soon. :cheers:

[daviddu79]

1991 red,black 45000 miles,number1554

[ZONER 95]

1995 Black #178.....purchased in October w 3,050 miles
...now in April has 3,220 miles.....only thing changed so far is all fluids and original owner replaced badly delaminated windshield with PPG Solartint one. Kevin

[sdickens]

1990
129,000

Just bought it this week, only thing I know that has been replaced is the starter.

[captcorvette]

'90 MY with 74,000 miles. Black on black. Starters, ECM (original owner), vacuum pump, door ajar switch, weather stripping, oil dip stick (broken in F/R accident, rear window gas struts and had to install stiffener in intake hose to keep it from collapsing.

[jrd1990zr1]

1990 Red/red #2529 8,150 miles All original except battery.

1990 Charcoal/Gray #2124 55,000 miles, injectors, oil leak at cooler and oil filter adapter to engine bolts loose.

Both run excellent. :cheers:

[Alberta_ZR1]

1993 - #417 - 31,000 miles
Located in Canada

[dan1495]

1990 #2742, red/red, 58,600 miles. I purchased the car in October of 2011 with 57,700 miles. The car had been owned by a dedicated enthusiast who had had top flighted the car several times and had also received the McLellan award with it a few years ago. I listened to the advice of people on this board and bought a well maintained car with documentation. Prior to my ownership, the following major items had been replaced or repaired:
1. Injectors
2. Plug wires
3. Radiator replaced with a Dewitt unit. Original came with car.
4. Clutch
5. A/C control unit
6. Alternator
7. Haibeck chip
8. Starter
9. Stereo had been refurbished
9. Starter solenoid

I have replaced the clutch slave cylinder since I bought it but everything else worked and it still does. I have owned 13 Corvettes prior to this and this has been my favorite.

Thanks to everyone on this board for sharing all of your knowledge.

[ZZZZZR1]

Very cool! Two first time posters!!!!!


Could we get more info on each car and pictures???? Any interest in meeting other ZR-1 owners?

:cheers:

David




1990
129,000

Just bought it this week, only thing I know that has been replaced is the starter.

1990 #2742, red/red, 58,600 miles. I purchased the car in October of 2011 with 57,700 miles. The car had been owned by a dedicated enthusiast who had had top flighted the car several times and had also received the McLellan award with it a few years ago. I listened to the advice of people on this board and bought a well maintained car with documentation. Prior to my ownership, the following major items had been replaced or repaired:
1. Injectors
2. Plug wires
3. Radiator replaced with a Dewitt unit. Original came with car.
4. Clutch
5. A/C control unit
6. Alternator
7. Haibeck chip
8. Starter
9. Stereo had been refurbished
9. Starter solenoid

I have replaced the clutch slave cylinder since I bought it but everything else worked and it still does. I have owned 13 Corvettes prior to this and this has been my favorite.

Thanks to everyone on this board for sharing all of your knowledge.

[ghlkal]

1990 #2180 red/black 49,120miles

no known major issues, although I've only driven it 1300 miles

[Racinfan83]

1990 #2093. Stock. Has 18,058 on it right now....

[Blue Flame Restorations]

1995 #089 = 9980 miles

[Franke]

1990 # 1755, Black/Gray 55,980 miles. Replaced the injectors, replaced vaccumn hoses under plenum with steel lines, replaced tires - Eagle F1's, new seats and foams, repaired lumbar bladder pump, replaced rear FX3 shocks, new amps, radio/cd repaired/refurbished by Doctor Don, inserted wire hoops inside intake hose. All of this info to do this came from the great folks on this forum. Car runs great. Many thanks to all who support this forum.

[John Boothby]

Currently pushing 80K. Have replaced/rebuilt everything except the basic engine and tranny. Just returned from a 500 mile trip in her and all worked as advertized! Only exception is the driver's lumbar bladder does not hold air. MPG was 21.36 on Shell 91 with a/c running all the way. Trip went from 2200 ft alt to 5500 ft alt and back.

[garyhugo]

1990-1572 162,100 miles. No major failures. Everything works correctly and a loose leaf notebook of receipts to show for it.

[JimZRyd]

10,984 as of yesterday!

[Fully Vetted]

34k, slightly modified ;)

[We Gone]

52k

[-=Jeff=-]

66k almost 67k on 1990 #1051

[vinsZR-1]

90 #1966
6850 mi
No major failures

[DennisC]

1991 Quasar Blue # 1301 has 60,023 miles, runs like a CHAMP!!

[SteelBlueZR1]

1991 Steel Blue/Steel Blue #1029 has 8,400 miles. Bought in 8/2011 with 3,400 miles. Now runs and looks better than new!

But after 20 years sitting, when first bought had to replace: Injectors, oil cooler line, tighten various parts related to minor leaks - As per Haibeck article; replace both fuel pumps, replace secondary actuator solenoid; replace headlight bushings; change all fluids to synthetic; changeover AC; Every time I drove my Z for the first 6 or so months, she felt better, and now feels brand new with zero squeaks rattles or issues!

[DennisC]

Bert Check your PM sent you a number

[WARP TEN]

My 95 now has 24,000 miles on it; I have driven it about 3,000 miles since purchasing it last summer, including a trip to Bowling Green last May. When I first got it I had Marc Haibeck go through it and service everything and replace a few things like weather stripping. Other mods he did are noted below. The Haibeck 510 packages included removal of the secondaries and the AIR pump and related hardware. Runs perfectly. --Bob

[batchman]

My wife's 1991 #1840 now has 80k miles.

Appears to be stock injectors, I've only used Sunoco or Mobil 93 since we bought it at 75k.

Only real issues have had to do with prior owner. Trans has shift fork and syncro issues, bought it this way. Emissions problem with gutted cats, elec problems from DVD stereo, that sort of stuff.

About due for hoses, clutch, lower control arm bushings. The bushings are because of the slicks I'm sure. Couple of trim bits, weatherstrip, no big deal.

Cheers,
- Jeff

[icarus-54]

Mine has 42k,some minor issues but I think Marks chip will cure them.

[RyanChappel]

19,500 miles.. New accel injectors, A/C conversion, weak headlight actuator motor replaced, four speakers and tape unit reman, exhaust system removed, reanodized, replaced, leaky driver side header stud repaired, clutch slave r/r.,secondary fuel pump replaced, Marc chip.

[rkreigh]

1995 ZR-1, Lingenfelter 390 LSV, only issues are I had the secondary switch selenoid fail and decided to pull the secondaries out, and had a new clutch roast at BG.

car pulls like a freight train, consistently dynos at 508 at the tires or higher.

LPE build it back in 97 with 13k miles, so I have 67k worth of grins on the stroker. the LT5 is one tough hombre, and the LPE builds only enhance that.

probably the most durable and trouble free high performance car I've ever had, and I have a few.

I take it to redline often at 7400 (limiter at 7500) and the car responds consistently when driven hard and often.

been commuting to work in it this summer during decent weather with the top off and the targa truss in place. even with the high price of gas, it's SOOOOO worth it.

life is too short to drive junk, and I value time in the Z immensely

I fully intend to "wear this one out" and chances are good it will outlast me!!

[Funracer]

Oldest thread ever?

Regards

[Schrade]

Ok; I'll go 117th :D

'90. 32k...

[dredgeguy]

My 92 #246 has 68,000 miles
New injectors, wires, coil packs when I purchased it last year at 62,000 miles. Since that time, minor issues, back up light switch, headlight bushings, one FX gear, air pump for seat and amps. Lucky to live in Wazoo land with talent willing to help anytime.
Car runs strong and looks like new.

[Guns n Vettes]

1990 #862. I have 28500. Third owner. Bought it in 09 with 19k. Just put new injectors/coil packs/fuel pumps/plugs and wires. Runs like a champ. Looks like new! Replaced brake light switch and oil pressure sensor a few years ago. New tires. No other Mods. But like Charlie, I'm glad to be living in WAZOO country.

Wayne

[POWERBRAKEBOB]

254,000 miles

[lakemeadzmonster]

1990 Charcoal Metallic #1217 @ 53,455 runs great, but working on recent secondary vacuum system failure.


:usa:

[JimZRyd]

Just passed 11K this past weekend:-D

[Vetman]

1990 2441. 60.000 mi. Stock I think. Only apparent mod is corsa exhaust. Seems to run perfect. Slight stutter as secondaries open. Then just screams to 7000. AC just charged with R-34 and that works great too. New Michelins installed and are great handling and riding. Car is a PEP car and has two original window stickers, one showing central office delivery in MI and the other to manhatten beach, CA.

[geezer]

1990 #1389-27,000 mi. - one owner-stock except RC injectors. Lt5 returned to Stillwater in 1990 ( 600mi.)- no compression in #3. Repaired & reinstalled in ZR1.:)

[yzpilot]

91 BLK/BLK 41,623
No major engine or tranny problems.

[Mystic ZR-1]

90 #2282

Just went over 27k on the way back from Carlisle

It had 3512 on it when purchased from 3rd owner in Aug of 08.
Damn, hope I don't wear it out... :)

[BigJohn]

90 #2282

Just went over 27k on the way back from Carlisle

It had 3512 on it when purchased from 3rd owner in Aug of 08.
Damn, hope I don't wear it out... :)

Why not have your Clutch serviced??????????????

:confused:

[G8nightman]

91 42000miles

[Crackphx]

1990 - Verified 57 Miles back into caring hands

[Bearly Flying]

91 #1820 Arctic White/ Gray 61,000 miles.

Replaced starter solenoid contacts. ( Dreaded No Start issue)

Still had original Injectors, checked and found a few marginal, possibly starting to fail. Replaced Injectors with SS inj from Jerry's.

Had the top end ported by LGaff while it was apart. Port matched the heads to the IH's, Secondary delete and chipped.

Previous Owner had installed Headers, a full 3 inch exhaust and replaced the clutch and flywheel ( For performance reasons, I believe, not due to failure)

Bose Stereo needs to be overhauled, radio works but CD and Tape deck do not.

The car has been well looked after, it has some rock chips that comes with the mileage, and will need a paint job at some point. Interior is excellent, seat bladders all work, some minor scuffing on the Drivers bolster is the only sign of wear.

The original windshield has a small 1 inch crack from a rock chip. Repaired and holding so far..

Awesome Car..

Great info and support from You Guy's on the Forum.

Thanks.

[edram454]

1990 blk/blk #3028.. had two previous owners. first owner drove it 28k miles and seemed to replace EVERYTHING! tons of dealer paperwork..even the windshield!! .. might have been a lemon...second owner.. modded the car for some track duty..ported the top end etc.. headers.. boxed the front end..roll bar...hd brakes..rebuilt shocks etc..et.c...drove it 17k miles in 15 years of ownership:-D.... I bought it one month ago..Runs great..all gremlins gone!! Thanks previous owners!!.. plus new 10k paint job to boot..imron black..flawless.. and RC injectors.. 45k miles.. the car screams to 7200 rpm.. no leaks and no engine diagnostic lights ever come on.. ed ramos #3028:-D

[Franke]

Considering the cost of these cars new I can understand the tons of dealer paperwork too. Mine was owned by a medical doctor (surgeon) and it look like he took the car in for everything and anything especially squeaks and wind noise.
You bought this car the right way in my opinion as it probably had all of the known issues cared for plus you received the mods too. Good for you. Now you get to enjoy the benefits. :)

[edram454]

thanks. first owner owned a large landscaping business and bought it as a company car I was told. second owner is a dentist and did all the mods and cared for it. so far I have been lucky with it. I understand all vacuum issues have been resolved new hoses..etc.. injectors new etc.. all the problems I see that people have with these cars have already been dealt with so the car is ready to go. I do need to repair the radio. I never knew that these radios were such pieces of crap. he replaced all the bose speakers and when he put a cd in it, the radio broke. oh well I guess this will be on me. My car has a zimmer chip. Hib Halverson did a comparison on these chips a while ago and said the zimmer chip was one of the most aggressive ones. car runs very strong.

[Franke]

You have a nice ride there. I wish I had the money for just some of the mods on your car. My radio CD player crapped out too. I sent it to Dr. Don in Texas and it came back better than new and the CD unit was replaced with a better unit. As Dr. Don said " the old CD unit was a heat sandwich which helped its demise". I took it apart before I sent it and believe all of those Bose CD units will fail based on heat and use. He cleaned the radio head and replaced the lamps etc. Works great now.

[edram454]

did you take your stereo out yourself? and what about that cdm unit? I hear it is a pain to take out. I have a friend who a retired corvette mechanic at a chevy dealership who would do it but he is getting up in years and that cdm looks like a real pain to take out. I was contemplating going with a all new aftermarket system but since the previous owner already bought and installed new bose speakers I might as well rebuild what I already have. Its not like I even turn on the radio when I am driving any corvette since I like to hear the motor at all times. I think I have turned on my radio in my c5 3 times in 7 years. I still feel that I should fix it because I dont like knowing that something in the car does not work correctly regardless if I use it or not. How much did Dr. Don charge you for your radio rebuild? did that include the cdm unit?

[Franke]

I pulled the head unit out from the dash as usually that is all that is not working. I didn't touch the CDM unit. I replaced the capacitors in the amps in the speakers and they work fine now. Electrolytic caps just dry out over time and lose the ability to " Capacitate" take a charge and hold it:) Dr. Don charged 200.00 for parts + 100.00 for labor+ 15.00 shipping. Total was 345.00. That was back in 2008. Probably a little higher now but he was able to replace that CD unit for a better design without making any changes to the looks of the radio. He can probably add a Ipod /aux jack too now. I'm like you in that if I know something is not working it will be fixed regardless of use.

[edram454]

thats not too bad. I read somewhere that some of the other rebuilders also require that the cdm goes with the radio for rebuild. There is another rebuilder of radios that members use but he requires both units. If I can take out just the head unit it would be great. Maybe I will just do that and leave the cdm alone. I figure if the head unit comes back and does not work then I will remove the cdm and send it in. My head unit had a take stuck in it. when the take was inside the antenna went up but of course no sound. After playing with it a couple of days, the tape came out one day but now it says (tape in) and i get no sound the the antenna does not come up. It needs a total rebuild.

the previous owner said it was all working fine with his newly installed speakers until he slid the cd inside then it locked up. I have head a lot about Dr. Don so I will try him. Thanks.

[edram454]

thats not too bad. I read somewhere that some of the other rebuilders also require that the cdm goes with the radio for rebuild. There is another rebuilder of radios that members use but he requires both units. If I can take out just the head unit it would be great. Maybe I will just do that and leave the cdm alone. I figure if the head unit comes back and does not work then I will remove the cdm and send it in. My head unit had a tape stuck in it. when the take was inside the antenna went up but of course no sound. After playing with it a couple of days, the tape came out one day but now it says (tape in) and i get no sound the the antenna does not come up. It needs a total rebuild.

the previous owner said it was all working fine with his newly installed speakers until he slid the cd inside then it locked up. I have head a lot about Dr. Don so I will try him. Thanks.