REDS2KCA

It seems quicker down low but 5th only gets me to 120mph, and 135mph in 6th so far, more there just ran out of road.

Would like any feedback on this from actual runs, no mathematical etsimates please.

steven975

tell you what. go up to 4500rpm in sixth. double the MPH to get top speed with that gear.

then, multiply that by .8365. that is dead on. not an estimate. I know that's not what you want, but that's what the result will be.

REDS2KCA

hmm that doesnt work out even with my speedometer being off a bit 1% or so i have the yellow box and it is correct....with that i hve been 135 and i let off there was more there so i confused where ou get this method of calculation.

Ludedude

I believe the theoretical topend with 4.77s is 142 MPH. Have you played with the numbers here? http://reverendsgarage.net/index.php?conte..._calculator.php

Gernby

[QUOTE]Originally posted by Ludedude
I believe the theoretical topend with 4.77s is 142 MPH.

Ludedude

That makes sense then

REDS2KCA

So Gernby where do you feel it even out and start accelerating very slowly...125 130 mph etc

Gernby

It accelerated great all the way to the rev limitter. If you want to see how top speed is with 4.77s, just top the car out in 5th (with stock gears). 6th gear with 4.77s is almost identical to 5th gear with 4.10s.

REDS2KCA

i have the 4.77 installed and i just see some lag at 130mph, did the Hondata gasket make a noticable diff i just bought one.

Gernby

The Hondata gasket will have practically zero effect on high speed performance due to the extreme quantity of air flowing through the manifold. I wouldn't be surprised if IAT was only a couple degrees above ambient at 130 MPH.