The car:
1996 Prelude VTEC/Stock Motor/9lbs boost/Custom setup with hondata
Probably making around 330+ SAE whp (made 311 on the dyno untuned and missing)

The tranny:
H22A1 tranny with Aasco flywheel, ACT clutch, and Quaife
1st: 3.31
2nd: 1.95
3rd: 1.36
4th: 1.07
5th: .87
Final: 4.27

I believe 4th gear tops out around 115 or so......is there a way I can calculate that? I need to pay more attention when I'm driving I guess.....
Anyways, I'd like to be able to do the 1/4 ending somewhere around redline in 4th so I don't need to shift to 5th......so the question is: Approximately what size slicks do I need to run to end the 1/4 at redline in 4th so I don't need to go into 5th? I'm assuming my mph will be somewhere around 113-115 or so (our 'teg making less power and weighing less did a 13.0 at 113 in phoenix, so I'm judging by that....)
Thanks!!!
Brian

 

the formula for calculating this is: tire circumference=mph x gear x 1056 divided by rpm - for your car: tire = 115 x 4.27(1.07) x 1056 / rpm or simplified, 554847/rpm - the result will be the circumference of the tire which all of the manufacturers list in their specs - for instance; M&H 9.5/22/13 = 69"- M&H 9/22/13 or 8/22/13 = 70" - hope this helps.

 

i have a nice gear ratio calculating program made by quaife ill email you if you want... you put in your gear ratios and tire circumfrence and it spits out nice graphs and stuff


[Modified by Furry, 5:52 AM 2/2/2003]

 

Thanks for the info guys! Yeah, I'd love to have that program, just shoot me an email
Brian

 

Smallest widest slicks..

Like i said B

Sean


[Modified by lbz34, 3:10 PM 2/2/2003]

 

Bored Sean?
I need to find out if I can fit 13's over stock prelude brakes......
Brian

 

http://nonsense.netfirms.com/speed.html

 

I know 14s jsut barley clear my brakes on a SR ( Si in the states) and the Si Vtec has even larger front brakes... so I doubt you cna put a 13" rim on a prelude...

 

if you have a SI or S you can use 14 inch wheels, if you have a vtec then you are stuck w/15's unless you downgrade the brakes