1stGen.org

by **cummins king** » Sun May 11, 2008 7:07 pm

dazedandconfused wrote:
cummins king wrote:
dazedandconfused wrote:
cummins king wrote:
mhuppertz wrote:
KTA wrote:My truck has spun the rollers past 160mph on the dyno, and somewhere around 140 is the fastest it has been on the street. Of course since it traps the 1/4mile at about 110 it sees that pretty regular.

Geez! What kind of overdrive are you running, and how what's the RPM at 140 and 160?

hes talking about mph not rpm, and hes running a 5spd

and its not a cracker box, it wrenching service in a flash

I think flying brick is what Brian called it right after he made the 48*hp run years back. Not sure of the gearing probably 3.55 in a dana 80 and a getrag is what is in that truck.

5spd = Getrag

It also equals NV4500 which is what the fellow who posted this has in his truck acording to his sig. Just trying to be as percise as can be.

by **KTA** » Mon May 12, 2008 5:32 am

Yes I have 3.31 gears and run 32" tall tires with a getrag 5 spd. It will pull well past 4200rpm, it just doesn't pull as well as at 3000rpm.

by **racerdude_9** » Mon May 12, 2008 5:39 pm

what mods do u have to have to get 120mph let alone 160?

by **dodgetkboy78** » Mon May 12, 2008 11:49 pm

Damn you guys, my truck does 94, uphill, downhill, and probably sideways.

by **Ace** » Tue May 13, 2008 6:40 am

Wind resistance is the biggest speed-limiting factor for a pickup shaped like ours. Top speed is going to be more drag limited than power/gearing might suggest. For every 10% speed increase, drag increases by over 40%. You just can't make enough power to go over a certain speed with these vehicles. Laws of physics and all...