View Single Post
Old 01-16-2009, 12:52 PM   #98
BRUTAL64BRUTAL64 is offline
Neanderthal
 
BRUTAL64's Avatar
 
Join Date: Mar 2008
Posts: 5,320
Default

Quote:
Originally Posted by Vettezuki View Post
The weight is irrelevant, what was your rpm at 119rpm? Your math might be fine. Mine rocks.

Here's a nice accurate graph of a wide ratio top loader, 3.55 gears and 275/50x15 tires. The engine turns the trans turns the axle (not a lop of slop there) turns the tires. Pressure and rotational inertia can have some effect on "real" diameter and effect total final "gearing", but the margin of error would be a couple mph at most I would think.

Weight is always a factor

If I remember correctly it was around 6200 to 6500 rpm. I'm just saying a 3.55 gear MIGHT be too tall in the real world. I remember when I was running the 1/4 I was just shifting into forth just before I hit the light with the 3.55s.


Not saying you are wrong , just stating a little real world testing would help here.
__________________
64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
  Reply With Quote