What kind of MPG to expect? - ZR-1 Net Registry Forums

Pqtaces · 06-27-2009

Just wondering what kind of MPG everyone is getting so I know what to expect?

I just burned through my first tank and got 13.3 with about 1/2 frwy & 1/2 city letting it out just a little (I am still getting used to it). I read that the original rating was 17/28 which I could not believe for this type of a performance machine.

I am not overly concerned with the cost as the Z is my weekend toy... I just want to make sure there isn't a potential mechanical issue (if I should expect 18-20).

Thanks,
Peter

USAFPILOT · 06-27-2009

that seems low to me...but I have never actually done the math. My C5 Z06 averages about 19.4 MPG since I've had it according to it's computer. And, it is regularly breaking posted speed limits.

My ZR1 doesn't get out as much due to me not being able to afford a new set of tires for it. But I think it gets better MPG than the Z06. Or it has a bigger tank or something?

Someone on here has to know the specifics. Now I have an excuse to do some driving. Sweet!

Except it is like 105 in Houston and I don't want to even go outside.

Does anyone know how to beef up the AC on these things? I wish mine could flow more air.

jonszr1 · 06-27-2009

i only really ck the milage on the freeway . my blk 90 with 410 gears headers and porting gets 22.1-24 mpg . the 92 callaway with 3,92s since corey did his magic on the prom gets 27/29 . the 27 is at 80-85 the 29 is 70 -75

FU · 06-27-2009

The 441 (3:90 gears) get's 26+ MPG on freeway driving and 11-12 around town. That's without blowing the rear too.
The LPE 385 (3:90 gears) gets at best 23 on the freeway and 12 around town.

GOLDCYLON · 06-27-2009

I get 26-28 daily on the freeway with stock gears. About 21 running around town. That mileage is exceptionally low for an LT5 that was the only Corvette of the time to beat the gas guzzers tax emposed by Federal regulators in the U.S. during its production run.

GOLDCYLON · 06-27-2009

Quote:

Originally Posted by USAFPILOT

Does anyone know how to beef up the AC on these things? I wish mine could flow more air.

Replace the blower fan. Night and day after replacing mine last summer. It tends to get hot in Phoenix as well

Ccmano · 06-27-2009

There's huge variation on the mileage these cars get depending on how and where you drive them. I find that on long highway runs I can get up to 27mpg. If I hotrod it around town I'm down around 11mpg. In "normal" driving, some highway some city I'm about 14.5mpg per the computer. It just depends if you baby it or not. Like you it's just a toy to me so I don't get too excited.
H

billybaloneey · 06-28-2009

Just an FYI:

Early 90's came with a window sticker claiming 16 mpg city and 25 mpg highway.

Near the end...94-95...they came with window stickers claiming 17 mpg city and 25 mpg highway.

Pqtaces · 06-29-2009

Thanks for the responses. I am taking the car in to Guldstrands to upgrade the radiator to a high capacity performance one next week. I will have them check it out.

Norsky4360 · 06-29-2009

On a 5k mile road trip in '07 we averaged 24 mpg for the trip. I was very happy with that number considering we crossed the continental divide multiple times, ran at 80mph most of the time on the freeways (with the a/c on a lot) and ran it up into the triple digits several times while in the back lands of Nevada.

Driving sensibly around town the numbers fall into the 15-18mpg range.

btw - "The Beast" is a 99% stock '90. The only components it didn't come off the assembly line with originally are the tires, a/c condenser, and fuel injectors.

06-27-2009	#1
Pqtaces Join Date: Jun 2009 Location: Glendale, CA Posts: 41	What kind of MPG to expect? Just wondering what kind of MPG everyone is getting so I know what to expect? I just burned through my first tank and got 13.3 with about 1/2 frwy & 1/2 city letting it out just a little (I am still getting used to it). I read that the original rating was 17/28 which I could not believe for this type of a performance machine. I am not overly concerned with the cost as the Z is my weekend toy... I just want to make sure there isn't a potential mechanical issue (if I should expect 18-20). Thanks, Peter

06-27-2009	#2
USAFPILOT Join Date: Aug 2007 Location: Spring TX Posts: 1,341	Re: What kind of MPG to expect? that seems low to me...but I have never actually done the math. My C5 Z06 averages about 19.4 MPG since I've had it according to it's computer. And, it is regularly breaking posted speed limits. My ZR1 doesn't get out as much due to me not being able to afford a new set of tires for it. But I think it gets better MPG than the Z06. Or it has a bigger tank or something? Someone on here has to know the specifics. Now I have an excuse to do some driving. Sweet! Except it is like 105 in Houston and I don't want to even go outside. Does anyone know how to beef up the AC on these things? I wish mine could flow more air.

06-27-2009	#3
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: What kind of MPG to expect? i only really ck the milage on the freeway . my blk 90 with 410 gears headers and porting gets 22.1-24 mpg . the 92 callaway with 3,92s since corey did his magic on the prom gets 27/29 . the 27 is at 80-85 the 29 is 70 -75

06-27-2009	#4
FU Join Date: Mar 2004 Location: Found Member Posts: 4,327	Re: What kind of MPG to expect? The 441 (3:90 gears) get's 26+ MPG on freeway driving and 11-12 around town. That's without blowing the rear too. The LPE 385 (3:90 gears) gets at best 23 on the freeway and 12 around town.

06-27-2009	#5
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,120	Re: What kind of MPG to expect? I get 26-28 daily on the freeway with stock gears. About 21 running around town. That mileage is exceptionally low for an LT5 that was the only Corvette of the time to beat the gas guzzers tax emposed by Federal regulators in the U.S. during its production run. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

06-27-2009	#7
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,843	Re: What kind of MPG to expect? There's huge variation on the mileage these cars get depending on how and where you drive them. I find that on long highway runs I can get up to 27mpg. If I hotrod it around town I'm down around 11mpg. In "normal" driving, some highway some city I'm about 14.5mpg per the computer. It just depends if you baby it or not. Like you it's just a toy to me so I don't get too excited. H

06-28-2009	#8
billybaloneey Join Date: May 2008 Location: Mauriceville, Texas Posts: 179	Re: What kind of MPG to expect? Just an FYI: Early 90's came with a window sticker claiming 16 mpg city and 25 mpg highway. Near the end...94-95...they came with window stickers claiming 17 mpg city and 25 mpg highway.

06-29-2009	#9
Pqtaces Join Date: Jun 2009 Location: Glendale, CA Posts: 41	Re: What kind of MPG to expect? Thanks for the responses. I am taking the car in to Guldstrands to upgrade the radiator to a high capacity performance one next week. I will have them check it out.

06-29-2009	#10
Norsky4360 Join Date: Feb 2007 Location: Colorado Posts: 115	Re: What kind of MPG to expect? On a 5k mile road trip in '07 we averaged 24 mpg for the trip. I was very happy with that number considering we crossed the continental divide multiple times, ran at 80mph most of the time on the freeways (with the a/c on a lot) and ran it up into the triple digits several times while in the back lands of Nevada. Driving sensibly around town the numbers fall into the 15-18mpg range. btw - "The Beast" is a 99% stock '90. The only components it didn't come off the assembly line with originally are the tires, a/c condenser, and fuel injectors.