Generation III Internal Engine 1997-2006 LS1 | LS6
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Trex cam = 377hp

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Old Dec 15, 2006 | 12:22 AM
  #21  
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man that blows... i've heard of a similar case before, the guy had patriot heads as well. turns out he had a pea sized hole in the intake port of one of the heads from bad porting. for your sake i hope its nothing that bad. Who knows, good luck with it man
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Old Dec 15, 2006 | 06:32 AM
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Originally Posted by A502slo
Explain the first line please?? a 346 6.0l????>>

it says 3 6 4 ---not 3 4 6.
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Old Dec 15, 2006 | 07:22 AM
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Originally Posted by westxwitesnake05
man that blows... i've heard of a similar case before, the guy had patriot heads as well. turns out he had a pea sized hole in the intake port of one of the heads from bad porting. for your sake i hope its nothing that bad. Who knows, good luck with it man
Heads are fine, just had new valves and such installed and have been running them for a few years with great results.
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Old Dec 15, 2006 | 07:24 AM
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Originally Posted by A502slo
Explain the first line please?? a 346 6.0l???? Well i have seen this before and the infact the trans was slipping. Fixed the trans and was back up at 480s. Also what pushrods are you using>>
What part do you need me to explain? It say's 364ci which is a stock 6.0L.
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Old Dec 15, 2006 | 09:32 AM
  #25  
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Originally Posted by import slayer
something is wrong with your car or the place that did your dyno. with my set up I am pushing 470rwhp. when I was using a 224/224 575/575 114 cam I dyno'd at 382rwhp. no way in hell are you at only 377
Do you have a graph of your dyno please?
470rwhp on a A4 (4400 stalled) is phenominal, I'm curious to see the curves on this one
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Old Dec 15, 2006 | 11:29 AM
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Yeah .. Predator and I would like to go over that dyno sheet and see what we can come up with .. but Predator will be the one speaking on behalf of the group (ahem)

What's up *****! Some how I KNEW those numbers from a Trex would stir some interest!
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Old Dec 15, 2006 | 11:38 AM
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Where did the hp and torque lines cross at? Wheredid the hp peak at? What other mods are on the car?
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Old Dec 15, 2006 | 11:57 AM
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here's what they emailed me, I'll call back and see if I can get the graphs with all the info.
this one was with a 175 shot on it with the timing backed down to 22*

this one was na with 28*
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Old Dec 15, 2006 | 12:02 PM
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i think this is the lowest HP trex..

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Old Dec 15, 2006 | 12:20 PM
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Here's the graphs with HP and torque.

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Old Dec 15, 2006 | 12:43 PM
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i might be wrong but i dont think the TREX is supposed to fall off like that at like 5K RPMS...maybe serious valve float?
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Old Dec 15, 2006 | 12:50 PM
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Maybe the wrong cam????
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Old Dec 15, 2006 | 01:37 PM
  #33  
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Something is definately not right about those graphs
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Old Dec 15, 2006 | 02:28 PM
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This is the nitrous pull with the HP and Torque together. I'm really thinking maybe it's the trans. slipping in high gear.

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Old Dec 15, 2006 | 02:31 PM
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Originally Posted by SiL3NtXWS6
i think this is the lowest HP trex..

So what was the problem with this one?
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Old Dec 15, 2006 | 02:34 PM
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Originally Posted by foff667
the converter could be unlocked on mustang dyno and it be 120* celcius outside & that combo shouldnt dyno that low.
WHat!? Wow, that's hot. Wouldn' that be over 240*? I think we'd all be " ".

Ben T.
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Old Dec 15, 2006 | 02:36 PM
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Originally Posted by willyfastz
So what was the problem with this one?
there was nothing wrong with it apparently.. it actually ran 10.9's
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Old Dec 15, 2006 | 06:46 PM
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that has to be one of the peakiest TQ curves I think Ive seen. and it stops making power at 5800rpm? no way. something is def. wrong here. doesnt valve float show itself in a shaky HP line? are you sure you have the right preload on teh lifters? was the cam degreed in? if the trans was slipping that badly, it should set a code for input/output shaft speed being too different. as in a slipping component code. major vacuum leak? weak spark? low fuel pressure? just throwing some more ideas out there to consider to help track this problem down.

low HP reading on a dyno are one thing, but the power dropping off a cliff at 5800rpm tells another story IMHO.
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Old Dec 15, 2006 | 06:55 PM
  #39  
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something is deffently wrong. a trex pull strong up till about 6700 that one isnt pulling no where near 6k rather alone 6700 -7k

we have a 11.1 LQ9 Trex in the works so in hte near future we should have some type of numbers what a trex in a 6.0 should actually do
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Old Dec 15, 2006 | 07:39 PM
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Originally Posted by Irocss85
that has to be one of the peakiest TQ curves I think Ive seen. and it stops making power at 5800rpm? no way. something is def. wrong here. doesnt valve float show itself in a shaky HP line? are you sure you have the right preload on teh lifters? was the cam degreed in? if the trans was slipping that badly, it should set a code for input/output shaft speed being too different. as in a slipping component code. major vacuum leak? weak spark? low fuel pressure? just throwing some more ideas out there to consider to help track this problem down.

low HP reading on a dyno are one thing, but the power dropping off a cliff at 5800rpm tells another story IMHO.
The trans. is a TH350 so there will be no codes. I drove it down the road today and the trans shifted into drive and seemed to pull fine. Fuel pressure was fine, I'll check it tomorrow for a vacuum leak but I don't think I will find one. Cam was degreed but I think I'm going to pull the front cover off and do it again. And it seems that valve float would be in the upper rpm rang not at the beginning of the pull.
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