LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Dyno #s

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Old 08-27-2007 | 09:36 PM
  #21  
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the car is fast but the numbers kinda disappointed me. i just expected more!!
Old 08-27-2007 | 09:40 PM
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Yeah, you can't build a motor to run well N/A then slap a FI setup on and expect it to do well. You'd be better off getting the turbo on now and get it tuned with that since compression seems to be your main problem. If you want to do a N20 setup, then you need to redo the motor and get it running great N/A. You'll just have to adjust a few things like spark plugs and timing to run the nitrous. Good Luck.
Old 08-28-2007 | 03:13 PM
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ya i am thinking of buying the procharger deal maybe 500-550rwhp!!
Old 08-28-2007 | 04:41 PM
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I'd keep the heads and port them.
The cam is wacked. As someone else stated, too much duration, not enough lift. Bad combo there. Do a know what the LSA is?
Also, is it an auto? with a stall? Did he run it unlocked? That'll kill the numbers.
Edit: I see its an auto. How much stall? and did he run it unlocked? Thats gonna make a big difference in the numbers. could be 30+ depending on the stall.
Old 08-28-2007 | 05:25 PM
  #25  
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its a 540 lift cam with 1.5rr but i have 1.6rr to bring the lift up. It has a 3000 stall in it. don't know if its unlocked or lock. its a pro torque converter. yes i know what a lsa cam is.
Old 08-28-2007 | 05:28 PM
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if you want to hit over 500rwhp to 550rwhp, then port the heads and throw a blower on it, chances are your not going to want 500 +hp because you would have to set your whole car up for it just to race, which equals a lot of money. Throw a blower on it and it will make great power, probably somewhere in the 450rwhp
Old 08-28-2007 | 06:48 PM
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Its the cam!!! Your giving up way too much cylinder pressure with it. I didnt figure out your DCR buts chances are its low enuff to push 5-7psi and still run regular gas! Whats the LSA/ICL on the cam 110/106?

Jason
Old 08-28-2007 | 10:08 PM
  #28  
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wow, thats way off

****, im makin more than you with a cam only 350.
something is missaligned. you should be making more like 450rwhp
Old 08-28-2007 | 10:55 PM
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Originally Posted by Puck

Biggest thing seems to be the cam. Drop the duration a LOT to the low 240 range at most, and run some real lift. Only .540 in/ex with rockers is low for even stock heads. 1.6RRs will help quite a bit by getting the lift up to a respectable range, but you would benefit most from a different cam. That thing must not peak for ages with all that duration!
Definitely.
If your running ported heads and a cam, you gotta complete the valvetrain.
Roller Rockers, Roller Lifters, Dual ValveSprings/Bee"Springs, new guideplates shims, locks.
Might as well get a custom cam or a better cam for your setup, put in the new valvetrain components and injectors, then have it tuned.

A dyno tune is a must IMO with such a mixed setup.
355hp/370tq isn't too bad though, they are nice numbers, but you should be closer to 390-400 the way its sitting now.

Good luck man.
Old 08-29-2007 | 06:50 AM
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Originally Posted by KILLERZ/28
its a 540 lift cam with 1.5rr but i have 1.6rr to bring the lift up. It has a 3000 stall in it. don't know if its unlocked or lock. its a pro torque converter. yes i know what a lsa cam is.
The rockers only make the lift .576, which is better than .540, but it could use more.
And I'm not asking you if you know what a LSA cam is, I'm asking you if you know what the Lobe Seperation Angle is of YOUR cam.
Old 08-29-2007 | 11:22 AM
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114 i think

Last edited by KILLERZ/28; 08-29-2007 at 11:50 AM.
Old 08-29-2007 | 04:22 PM
  #32  
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Originally Posted by burnzilla
Definitely.
If your running ported heads and a cam, you gotta complete the valvetrain.
Roller Rockers, Roller Lifters, Dual ValveSprings/Bee"Springs, new guideplates shims, locks.
Might as well get a custom cam or a better cam for your setup, put in the new valvetrain components and injectors, then have it tuned.

A dyno tune is a must IMO with such a mixed setup.
355hp/370tq isn't too bad though, they are nice numbers, but you should be closer to 390-400 the way its sitting now.

Good luck man.
it does have roller rockers,roller lifter all that good stuff. And a customtune.



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