Track Times: My Best Ever - ZR-1 Net Registry Forums

Locobob · 11-30-2008

My math shows 129mph at 7500rpms with 3.45's and 25.7in tires - I'd say thats just about perfect for the quarter mile assuming your powerband looks a lot like mine. If you're gonna try gears I'd go with at least 4.10's otherwise you'll end the quarter part way through 4th and the extra gearing may not compensate for the time it takes for the extra shift. Your results are making me seriously think about doing a cam swap - stop it already

11-30-2008	#27
Locobob Join Date: Jan 2004 Location: Portland, OR Posts: 1,047	Re: Track Times: My Best Ever My math shows 129mph at 7500rpms with 3.45's and 25.7in tires - I'd say thats just about perfect for the quarter mile assuming your powerband looks a lot like mine. If you're gonna try gears I'd go with at least 4.10's otherwise you'll end the quarter part way through 4th and the extra gearing may not compensate for the time it takes for the extra shift. Your results are making me seriously think about doing a cam swap - stop it already __________________ Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 Last edited by Locobob; 11-30-2008 at 01:41 PM.