Forum: C4 ZR-1 Technical Postings
06-29-2017
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Replies: 5
Views: 1,330
Re: Code 56 and while I was in there...
Jeff, I checked those sites for these particular connector housings. The dark green for the map sensor has a minimum order qty of 750 and a lead time of 12 weeks from mouser. Could not find the gray...
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Forum: C4 ZR-1 Technical Postings
06-28-2017
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Replies: 5
Views: 1,330
Code 56 and while I was in there...
I haven't had anything to share here in quite some time as I haven't had really any issues but I do login and read what others have been doing.
With that being said, a few weeks ago I got a code...
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Forum: C4 ZR-1 Technical Postings
02-01-2016
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Replies: 16
Views: 7,866
Re: What are the best plenum gaskets?
I voted Jerry's 3/64. Ordered them Saturday morning, got them today (Monday). Feels like a weak coil or a coil is going bad so will be pulling the plenum. From reading the recommendations I went with...
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Forum: C4 ZR-1 General Postings
02-01-2016
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Replies: 33
Views: 4,323
Re: Did you fire up your ZR-1 today?
Got lucky and was able to take my 95 (also Torch Red) to the track. Was close to 70 here. Nobody on street tires had much grip off the line but I was able to get a 12.8 out of her.
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Forum: C4 ZR-1 General Postings
08-07-2015
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Replies: 6
Views: 1,525
Re: 1995 ZR1
Thanks, not sure who does the updating but if they read this thread they can add #297 to the list of Dunn heads.
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Forum: C4 ZR-1 General Postings
08-07-2015
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Replies: 6
Views: 1,525
Re: 1995 ZR1
Where is this list? My '95 #297 has Dunn heads as well.
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Forum: C4 ZR-1 General Postings
04-03-2015
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Replies: 15
Views: 3,349
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Forum: C4 ZR-1 General Postings
04-03-2015
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Replies: 15
Views: 3,349
Re: Fun night at the drag strip
I actually ended up running a 12.6 last November which is my best yet. Planning on going tonight which will be the first time since then. I run the suspension in the softest setting, not sure if it...
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Forum: C4 ZR-1 Technical Postings
01-10-2015
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Replies: 17
Views: 4,596
Re: Catalytic converters?
All is well again. Pulled the plenum this morning and found one of the brittle plastic vacuum pieces had broken right at the barbs. Fixed that and drove her, rev limiter in 1st and 2nd so I'm happy...
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Forum: C4 ZR-1 Technical Postings
01-07-2015
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Replies: 17
Views: 4,596
Re: Catalytic converters?
Good news, definitely bad coil. Replaced all 4, started great, idles great, drives great, sounds great. Until you get close to 5k RPM, then no more and a brief check engine light. Chalking it up to...
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Forum: C4 ZR-1 Technical Postings
01-03-2015
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Replies: 17
Views: 4,596
Re: Catalytic converters?
The original readings I got through the wires and coils were with the engine cold. The car had sat long enough that all the plugs looked the same when I checked them. Yesterday I had started the car...
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Forum: C4 ZR-1 Technical Postings
01-02-2015
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Replies: 17
Views: 4,596
Timing light makes it easy
Had one of those duh moments this morning, hooked up a timing light and no fire on number 1, all other 7 were working just fine.
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Forum: C4 ZR-1 Technical Postings
12-31-2014
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Replies: 17
Views: 4,596
Re: Catalytic converters?
I appreciate the help so far. Life, work, and the holidays have kept me out of the garage lately. However, the Marine Corps is sending my girlfriend on an expense paid trip to Quantico for a week so...
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Forum: C4 ZR-1 Technical Postings
12-28-2014
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Replies: 17
Views: 4,596
Re: Catalytic converters?
Got in the garage this morning and this is where I'm at.
Fuel pressure, cold, key on engine off 48 psi.
Idle 44 psi, stayed there as it warmed up.
Remove regulator vacuum line 53 psi.
2000 RPM...
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Forum: C4 ZR-1 Technical Postings
12-26-2014
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Replies: 4
Views: 1,476
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Forum: C4 ZR-1 Technical Postings
12-26-2014
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Replies: 17
Views: 4,596
Re: Catalytic converters?
Thought about fuel pressure, will go pick up a gage tomorrow and check that. I know injectors were a common problem on the earlier ZR-1's, but didn't think the later ones really had any problems with...
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Forum: C4 ZR-1 Technical Postings
12-26-2014
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Replies: 17
Views: 4,596
Catalytic converters?
Been enjoying my ZR-1 and driving as often as I can, but now having some running issues.
1995, stock with Corsa catback, Screamin Demon coils, and Livewires spark plug wires. 68,xxx miles.
...
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Forum: C4 ZR-1 General Postings
07-19-2014
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Replies: 15
Views: 3,349
Fun night at the drag strip
Was finally able to get back to the drag strip last night. The last time I went was Feb or March and still had the old Pilot Sports on the back. Had a heck of a time struggling to get traction. I now...
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Forum: C4 ZR-1 General Postings
07-19-2014
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Replies: 10
Views: 1,957
Re: SCCA SOLO
Alignment and lowering are on the to do list before the next event along with new front tires. How do the Z51 sway bars affect your day to day street driving?
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Forum: C4 ZR-1 Technical Postings
07-17-2014
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Replies: 26
Views: 24,864
Re: How Much Secondary Leakage?
Will have to do some digging around now. Later the same day I was finally able to get into an open enough stretch of road to open her up, ran all the way up to 7k like usual. I've got the FSM so...
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Forum: C4 ZR-1 General Postings
07-17-2014
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Replies: 10
Views: 1,957
Re: SCCA SOLO
So I'm only 4 months behind on posting an update as to how this went! Had a blast as usual :dancing Saturday was one of their school days and it rained all day. Was very surprising as to how well...
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Forum: C4 ZR-1 Technical Postings
07-16-2014
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Replies: 26
Views: 24,864
Re: How Much Secondary Leakage?
Haven't voted yet and not sure if I should add this to this thread but, what's the difference in the way the vacuum pump should run with key on engine off or key on engine on? The reason I ask is I...
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Forum: C4 ZR-1 General Postings
05-17-2014
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Replies: 22
Views: 2,740
Re: Who do you let drive your ZR-1?
So far my wife and a fellow club member. After his wife got her Z06 to match his and another guy got the blower put on his C5 they all asked me to drive theirs. I offered up mine but only one said he...
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Forum: OFF TOPIC
05-17-2014
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Replies: 8
Views: 1,461
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Forum: C4 ZR-1 Parts For Sale / Wanted
05-03-2014
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Replies: 2
Views: 887
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