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-   -   Rematch with a 1999 mustang Cobra (http://www.ramforumz.com/showthread.php?t=93950)

440ram 10-10-2011 03:26 PM

Rematch with a 1999 mustang Cobra
 
I recently had my 2-3 shift fixed and the truck seems to be running alot better. truck puts down 315 rwhp and 349 rwtq

this is the rematch, looks like I was able to maintain lead for approx 19 sec. from a 20 roll.

http://www.youtube.com/watch?v=devzb4grESc



This is our same 20 roll race from a few weeks ago. I would hit the limiter on the 2-3 shift at about 75 mph or so and he would catch up my 90 mph

http://www.youtube.com/watch?v=4jHtgalF4yQ

RadioFlyer 10-10-2011 09:02 PM

I saw your first vid a while back, pretty impressive. You can see the difference, you held on to the lead longer this time. What cam are you running and what gears are you using with those tires? I built a few of those 440's back in my haydays...brings back good mems! A little more torque on the top end may do you some justice. That's pretty good, especially for a big truck againt a mustang...good race. Sounds good too!

RadioFlyer 10-10-2011 09:05 PM

So what are you guys a/f mix at wot, are you monitoring them?

440ram 10-10-2011 11:31 PM

Its a 1998 346cu.in Ls1 with a stock heads/cam setup. It was at 13.8 a/f we tuned it to a 13.0 at WOT.

GeauxHunting 10-10-2011 11:33 PM

Nice run man!!!

440ram 10-11-2011 12:55 AM

it has 3.90 gears and the tires measure 29in.

RadioFlyer 10-11-2011 02:46 AM

Hey that's cool, I like that! Sounds like you've got it pretty much dialed in too...wow!

440ram 10-11-2011 02:44 PM

Quote:

Originally Posted by RadioFlyer (Post 633310)
Hey that's cool, I like that! Sounds like you've got it pretty much dialed in too...wow!


Thanks, as of now I feel like the truck should run 13's but a trip to the track will only tell. I need to work on the suspention a little more...sometimes I get wheel hop, sometimes I only get one tire spinning, and the front is kinda squirly. I found a bad tie rod, both front u-joints are bad, and I think the front wheel bearing is a tad loose. both front rotors are warped.....:LOL:,,,,it goes on and on...but one thing at a time and soon it will be a smooth ridding truck as well.

snrusnak 10-11-2011 03:32 PM

Quote:

315 rwhp and 349 rwtq
That is pretty impressive for a stock head/cam LS1. More details please?

Quick truck, good luck on the 13's, I don't know though, my friends 3,300ish lb late LS1 camaro with the better intake manifold, headers and exhaust, ram air only runs a 13.0.

EDIT: Never mind I thought you said 13.0.......breaking into the 13's seems doable!

440ram 10-11-2011 08:49 PM

Quote:

Originally Posted by snrusnak (Post 633674)
That is pretty impressive for a stock head/cam LS1. More details please?

Quick truck, good luck on the 13's, I don't know though, my friends 3,300ish lb late LS1 camaro with the better intake manifold, headers and exhaust, ram air only runs a 13.0.

EDIT: Never mind I thought you said 13.0.......breaking into the 13's seems doable!


Thats what I thought, I was expecting MAYBE 290hp to the tires....

It is a Stock heads/cam LS1 from a 1998 corvette, If I remember right the cam is one of the smaller LS1 cams.....479/.467 lift if I remenber right.

The truck ran a 14.0 @ 94 mph before a few small changes, but at the time had 3.90 gears, stock 4l60e with a sloppy 2-3 shift, ported oem throttle body, headers, flowmaster muffler, and custon home made intake

Since that 14.0 pass I added a UD pulley(maybe 5 rwhp) LS6 intake manifold(maybe 8 rwhp) fixed the 2-3 shift by rebuilding the 4l60e with the high rpm pump spring kit. and the dyno tune of coarse(15hp) I would think It will hit 13.7 or so with the same conditions as the 14.0 run...Again on the 14.0 run I would feel the truck slow down/bind up on the 2-3 shift...now it is a nice quick kick into third with ZERO hesitation.

The 3.90 gears help my truck alot, I think the good combo of bolt-ons help this stock motor show its potential.


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