Forum: C4 ZR-1 Technical Postings
10-02-2022
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Replies: 26
Views: 2,979
Re: 0W40?
It's generally accepted to be less severe than high performance pushrod engines. It's probably equal to or more severe than low performance pushrod engines.
However, emissions equipment life...
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Forum: C4 ZR-1 Technical Postings
10-02-2022
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Replies: 20
Views: 2,665
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Forum: C4 ZR-1 Technical Postings
09-30-2022
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Replies: 20
Views: 2,665
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Forum: C4 ZR-1 Technical Postings
09-29-2022
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Replies: 26
Views: 2,979
Re: 0W40?
https://www.mobil.com/lubricants/-/media/Project/WEP/Mobil/Mobil-RoW-US-1/Files/FAQs/mobil-1-oil-product-specs-guide.pdf
Notice on every Mobile 1 oil with API certification the recommendation...
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
09-24-2022
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Replies: 4
Views: 563
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
09-24-2022
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Replies: 0
Views: 352
WTB: 2013 registry t-shirt
Looking for the light blue 2013 T-shirt. Preferably in a small but would take a medium too. Let me know if you have one you'd parr with. Thanks.
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
09-23-2022
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Replies: 8
Views: 1,233
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Forum: C4 ZR-1 Prototypes
09-21-2022
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Replies: 33
Views: 8,294
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Forum: C4 ZR-1 Technical Postings
09-19-2022
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Replies: 26
Views: 2,979
Re: 0W40?
The ONLY reason 0w oil was created was to reduce emissions and increase fuel economy, primarily during a vehicles warm up period. Anyone who says anything else is drinking the corporate kool-aid...
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Forum: C4 ZR-1 General Postings
09-19-2022
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Replies: 11
Views: 1,476
Re: Prototype Piston Award Signatures?
At Lycoming, for our air cooled aircraft engines, the pistons aren't machined round, they are ovals and they taper from top to bottom. That way when they expand at operating temperature they are...
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Forum: C4 NCRS for ZR-1s
07-14-2022
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Replies: 16
Views: 2,678
Re: Service parts identification sticker
That is total bullsh*t. He's reproducing a sticker. Not only that, there are multiple VIN stampings on the car that identify the vehicle. The sticker just identifies trim. While someone could get...
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
06-17-2022
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Replies: 5
Views: 1,071
Re: NOT MINE! In Atlanta Georgia Fixer-upper
Yeah, not worth anywhere near 15k in that condition. Seller should take 9k and run far away. 15k will buy you a slightly rough condition but drivable car with the same mileage.
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Forum: C4 ZR-1 Technical Postings
06-14-2022
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Replies: 13
Views: 1,269
Re: Fuel system woes
Unrelated, out of curiosity, why are you using octane booster with premium gas?
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Forum: C4 ZR-1 General Postings
06-13-2022
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Replies: 75
Views: 7,458
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Forum: C4 ZR-1 Technical Postings
05-26-2022
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Replies: 4
Views: 566
Re: which gas
Obviously, the LT5 was designed around non-ethanol fuel. 87 octane is just a bit on the low side. Even without cats, I don't think I'd run 100LL (if for no other reason than the price). You also...
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Forum: C4 ZR-1 Technical Postings
05-26-2022
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Replies: 4
Views: 566
Re: which gas
Ethanol based 91? Or 91 octane with ethanol? "88 Octane" is E15. So I'm guessing you mean regular 91, but with ethanol. Typically 10% or less. That is the best choice, with replaced injectors. ...
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Forum: C4 ZR-1 Technical Postings
05-25-2022
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Replies: 39
Views: 3,276
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Forum: C4 ZR-1 General Postings
05-23-2022
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Replies: 75
Views: 7,458
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Forum: C4 ZR-1 Technical Postings
05-23-2022
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Replies: 39
Views: 3,276
Re: C8 OEM tires on the C4 ZR-1
A couple observations:
On the Michelin website, the AS4 has pretty terrible reviews.
7 - 1 star reviews
7 - 2 star reviews
122 total reviews
Many of the 1 star reviews say the same...
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Forum: C4 ZR-1 Technical Postings
05-20-2022
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Replies: 39
Views: 3,276
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Forum: C4 ZR-1 General Postings
05-20-2022
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Replies: 1
Views: 488
Re: Mecum Indy
Lower than comparable cars on BAT. But may just be indicators of the overall market slowing down. Those were both good deals in my opinion.
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
05-16-2022
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Replies: 11
Views: 2,656
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Forum: C4 ZR-1 Technical Postings
05-15-2022
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Replies: 9
Views: 1,075
Re: No Spark on Cyl 2 &3
Could be poor connection between coil and spade connector on coil base. Could have also been the plug from the DIS not fully seated in either DIS or coil base. Would have been the plug with the...
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