T-rex and 4400 stall Question
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From: SoCal
T-rex and 4400 stall Question I am running a Trex cam and I just ordered a Yank PT 4400 I have a stock bottom end ls1 and the rest of my mods are in my sig. What should I set my rev limiter to and what RPM's do you think I should be shifting at.
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I still have not dyno'd it yet but I will when the converter is in and my tranny is rebuilt. You said no problems with your set up but my question to you is is your car a DD because mine is 
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From: tampa fla
Originally Posted by import slayer
I still have not dyno'd it yet but I will when the converter is in and my tranny is rebuilt. You said no problems with your set up but my question to you is is your car a DD because mine is
.Not a DD now. 
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From: BFE
The best way to determine that is to dynotune and read the graph.
Knowing the stall shift extentions from track runs, and comparing that info with the graph, you then can decide which shifting point will keep the highest average HP.
That will be your shift point and limiter should be st at 300 rpm higher.
Knowing the stall shift extentions from track runs, and comparing that info with the graph, you then can decide which shifting point will keep the highest average HP.
That will be your shift point and limiter should be st at 300 rpm higher.
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with a 2000 shortblock, i wouldn't spin the engine past 6,600 rpm, due to the weak rod bolts. should you replace the rod bolts AND your shorty headers with longtubes, i would say shift @ 7,100, limiter @ 7,300. the t-rex LOVES free flowing exhaust and RPM. the shorties are probably hurting your ability to carry peak power.
the best method would be to dyno it and use the graph, as previously stated. spin it until it stops making power, then shift...whatever be the rpm.
the best method would be to dyno it and use the graph, as previously stated. spin it until it stops making power, then shift...whatever be the rpm.
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From: SoCal
ok i asked u somewhere else and i dunno fi u answered but did u actually run your car with a T-rex and 2800 stall? if so how did that work out for you?
I could tell that the top end was not there with the 2800
