Forum: C4 ZR-1 Technical Postings
23 Hours Ago
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Replies: 5
Views: 128
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Forum: C4 ZR-1 Technical Postings
1 Day Ago
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Replies: 4
Views: 127
Re: Bought Valvoline VR1 20-50
I had a 1954 Aston Martin DB 2/4 that smoked a bit so I ran 50 weight in it and that minimized the smoke. But I would not run 50 wt. in an LT5. Too close to molasses. As efnfast noted, save it for...
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Forum: C4 ZR-1 General Postings
1 Day Ago
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Replies: 2
Views: 171
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Forum: C4 ZR-1 Technical Postings
1 Week Ago
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Replies: 11
Views: 729
Re: 1990 AC question
I had Marc Haibeck convert my'93 to R134 many years ago. He said, per GM's directive, no A/C equipment had to be changed, just change to fittings and fully evacuate the system. You might check with...
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Forum: C4 ZR-1 General Postings
2 Weeks Ago
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Replies: 14
Views: 877
Re: Got my Admiral back from Marc's
Yes, a beauty. I saw it there the other day in the shop when down for lunch with Marc and others. It really looked great. I felt the same way when Marc did my 510 package on my old '95 Polo Green...
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
2 Weeks Ago
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Replies: 4
Views: 860
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Forum: C4 ZR-1 General Postings
2 Weeks Ago
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Replies: 10
Views: 1,597
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Forum: C4 ZR-1 General Postings
3 Weeks Ago
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Replies: 10
Views: 1,597
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Forum: C4 ZR-1 General Postings
3 Weeks Ago
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Replies: 10
Views: 1,597
Mercury DOHC 4 valves per cylinder V12 outboard
Saw a picture of one of these from a friend who attended CES. Hmmm...Mercury Marine DOHC 4 valves per cylinder, naturally aspirated engine--where have I heard that before? This one is an outboard, a...
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
3 Weeks Ago
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Replies: 8
Views: 1,910
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Forum: C4 ZR-1 General Postings
3 Weeks Ago
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Replies: 2
Views: 849
Re: P/N: Mufflers and Resonator - '92 ZR-1 (WTB)
John, you probably already know this, but the stock exhaust systems were one piece welded units from the cats back through the mufflers. There are undoubtedly parts number for each for repair and...
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Forum: C4 ZR-1 Technical Postings
3 Weeks Ago
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Replies: 5
Views: 1,069
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Forum: C4 ZR-1 Technical Postings
4 Weeks Ago
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Replies: 7
Views: 1,050
Re: Horn won't blow
Of course, if you can't get the horn working but still want one, there is always this alternative.....Bob
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Forum: C4 ZR-1 Technical Postings
4 Weeks Ago
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Replies: 11
Views: 1,337
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Forum: C4 ZR-1 Technical Postings
04-05-2024
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Replies: 17
Views: 1,382
Re: Solution for B&B Exhaust Drone?
A good solution would be to get a Corsa exhaust, and if budget constrained, you might be able to find a used one. Marc Haibeck might have one, as might others on this forum. The resonance frequencies...
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Forum: C4 ZR-1 Technical Postings
04-03-2024
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Replies: 5
Views: 448
Re: Front Crank Seal
Agree with Phil. Most of the time what is thought to be a front seal leak turns out to be loose oil pan bolts. Definitely check those first. Happened to me once. I thought it was the front seal but...
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Forum: C4 ZR-1 Technical Postings
04-02-2024
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Replies: 3
Views: 290
Re: Tire Size
That's what I did back in 2015. Michelin at the time only made 335-17 rears but they fit fine; they did have the stock front size. Costco had a good price and great service. And as to all season...
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Forum: C4 ZR-1 Technical Postings
03-29-2024
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Replies: 9
Views: 1,116
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Forum: C4 ZR-1 Technical Postings
03-13-2024
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Replies: 28
Views: 3,947
Re: Jack... in spare?
Glad to hear it. That means I am not losing my marbles after all and at least a small part of my memory is still intact.--Bob
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Forum: C4 ZR-1 Technical Postings
03-09-2024
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Replies: 13
Views: 1,026
Re: Rear Differential Gear Swap
Now that would be an impressive piece of carryon luggage Craig!-- Bob
Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)
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Forum: C4 ZR-1 Technical Postings
03-09-2024
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Replies: 33
Views: 8,451
Re: New replacement windshields
I am curious?would it be possible for some with tinting experience to create a tint material template to replicate the appearance of the radar detector cutout? Something that could be applied to a...
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Forum: C4 ZR-1 Technical Postings
03-09-2024
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Replies: 28
Views: 3,947
Re: Jack... in spare?
You are very knowledgeable and probably right but I seem to recall the jack handle on my 93 being behind the drivers seat, but it has been a long time and maybe I am just confused. Happens more than...
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Forum: C4 ZR-1 General Postings
03-09-2024
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Replies: 7
Views: 605
Re: Forum Outage
I guess my question would be, if it no longer available, why not? Anyone here know??Bob
Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)
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Forum: C4 ZR-1 Technical Postings
03-08-2024
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Replies: 3
Views: 336
Re: AIR System questions?
I don't know the answer to that Russell but I bet Marc Haibeck would be glad to answer that for you is you shoot him an email. I would bet he has dealt with many AIR systems over his years. Although...
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Forum: C4 ZR-1 General Postings
03-08-2024
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Replies: 26
Views: 2,051
Re: A question for the longtime owners.
Cars have come and gone through my life. I am like you Crabs-I have had a lot of sports, antique and high performance cars, now down to just the Z06. I did have the opportunity to own a '68 Hemi...
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