One very sweet combo that is for sure! 
500-600hp
Originally Posted by FASTFATBOY
Ed makes 508 RWHP through a 4l60E, it was dynoed with a stock converter. I dont remember him saying his compression was 14.5to 1 though.
He said 500HP, not 500 RWHP
500 HP is achievable with a properly setup 355, easier with a 383.
Mindame on CZ28.com made 570 to the wheels through older style GM 18* heads and a LT4 intake on pumpgas with a six speed, it prolly makes more now(he said) as he has canged some things. It ran 9.70s all motor.
David
He said 500HP, not 500 RWHP
500 HP is achievable with a properly setup 355, easier with a 383.
Mindame on CZ28.com made 570 to the wheels through older style GM 18* heads and a LT4 intake on pumpgas with a six speed, it prolly makes more now(he said) as he has canged some things. It ran 9.70s all motor.
David
The guy says 500-600Rwhp in his first post....Period.....
Yes...Ed makes over 500Rwhp With 14.5 to 1 and through a stall (unlocked 4400), 4.30 gear 12 bolt, he doesn't mention he has a 14.5 to 1 in this post, you just have to know him...Although when I calculate his compression I get 14 to 1...50cc head and .032 quench...Never have asked him his head cc's though so that could be wrong..
https://ls1tech.com/forums/showthrea...4&page=5&pp=10
Post #46 and #57.....
Last edited by jimbob; Nov 9, 2005 at 07:30 AM.
I'm currently in the 470's right now, and will admit that this isn't a car to daily drive. I am having opti issues at this power level and am tired of dealing with it. Going to DFI and hopefully will make it all the way to the 500rw number. We'll see. Expect to spend around $11,000-13,000 by the time you are all said and done. Honestly. You're probably thinking there is no way it will cost this much...it will. 
Originally Posted by Turbo_6
I'm currently in the 470's right now, and will admit that this isn't a car to daily drive. I am having opti issues at this power level and am tired of dealing with it. Going to DFI and hopefully will make it all the way to the 500rw number. We'll see. Expect to spend around $11,000-13,000 by the time you are all said and done. Honestly. You're probably thinking there is no way it will cost this much...it will.
wait so what mods should i go with first?im thinking about doing headers and true duals getting the exhaust out of the way.... then i dont kno where to go from there and i dont kno what size exhaust to go with? 3" all the way thru or is that to big?
TECH Apprentice
Joined: Oct 2004
Posts: 361
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From: courps christi tx.
500-600 hp on a daily driven LTX is surly going to take a but load of money, unless you go solid roller with every single supporting mod and a nice tune i dought it unless you spray it.
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Joined: May 2004
Posts: 549
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From: St. Peters, MO
Originally Posted by 96 LT-1
wait so what mods should i go with first?im thinking about doing headers and true duals getting the exhaust out of the way.... then i dont kno where to go from there and i dont kno what size exhaust to go with? 3" all the way thru or is that to big?
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From: courps christi tx.
Originally Posted by Jordan57
I'd actually go ahead and do the FAST/ DFI setup. You won't see any gains, but at least it won't need to be replaced when you finally step up to your goal setup. Also, 9", 3.5" driveshaft, suspension (k member, phr, lcas, shocks, torque arm, wheels, tires, etc.) as these are all things you will most def need.
Registered User
Joined: Mar 2004
Posts: 199
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From: Austin, Texas
Originally Posted by 96 LT-1
What would it take to achieve this? The car is bone stock right now. Id like to do w/o spray but im prolly gonna end up doing it. But what mods should i start with on my way to 500-600 rwhp.
We we're making about 100HP per 1000 rpm when the pcm cut out, once we get an after-market computer system on the car we'll turn it 8000rpm, we'll hit 600HP for sure maybe 650HP.
You guys know the car, Tony's Shepard’s LT1, it's a 396. We have an EFI manifold converted to fit the LT1 style heads, a 110 degree elbow with a 90mm forward facing throttle body, solid roller cam, jesel valve train and a bunch of C/R.
We built the motor, converted the manifold and ported his heads. Tony did the install and worked out all the details for his nitrous system. All in all it's a killer car. Check it out www.PortPros.com.
Originally Posted by Turbo_6
I'm currently in the 470's right now, and will admit that this isn't a car to daily drive. I am having opti issues at this power level and am tired of dealing with it. Going to DFI and hopefully will make it all the way to the 500rw number. We'll see. Expect to spend around $11,000-13,000 by the time you are all said and done. Honestly. You're probably thinking there is no way it will cost this much...it will.
What kind of opti issues? I have heard some have no issues at the 500rwhp mark and some have it as low as 350rwhp....I am going to try to use it...hope it does ok. If not I will go LTCC
JIMBOB..yeh I no read well, hey I was tired. My Dad and I are goin for the 500RWHP mark through a 4L60E and a 9 inch, want to run 10's@3700lbs all motor with all factory equipment..tall order....I dont think it has been done as of yet with a LT1......we are going in head first.
David
Originally Posted by FASTFATBOY
What kind of opti issues? I have heard some have no issues at the 500rwhp mark and some have it as low as 350rwhp....I am going to try to use it...hope it does ok. If not I will go LTCC
JIMBOB..yeh I no read well, hey I was tired. My Dad and I are goin for the 500RWHP mark through a 4L60E and a 9 inch, want to run 10's@3700lbs all motor with all factory equipment..tall order....I dont think it has been done as of yet with a LT1......we are going in head first.
David
JIMBOB..yeh I no read well, hey I was tired. My Dad and I are goin for the 500RWHP mark through a 4L60E and a 9 inch, want to run 10's@3700lbs all motor with all factory equipment..tall order....I dont think it has been done as of yet with a LT1......we are going in head first.
David
By the way, I'm expecting 420ish corked up (unlocked) and 450 uncorked (unlocked)....anymore and it's gravy... 
Last edited by jimbob; Nov 11, 2005 at 07:54 AM.
Only made 448 RWHP and 424RWTQ! Well, when you figure:
Heads: $2500
Cam/valvetrain/timing: $1400
Rotating assembly: $2500
TB/Inj/Fuel Sys: $1500
Headers/Exhaust: $1000
Machine Work w/ splayed: $1000
Tuning: $500
Gaskets/Misc: $500
Balancer/Pan: $600
That puts the total at: $11,500, and this assumes you have ALL the other supporting parts including clutch, suspension, drivetrain, etc, etc.
I'm sure there will be people that respond saying you can get the heads for $2300 instead of $2500 and the headers/exhaust for $800 instead of $1000, etc, and cut corners. I'd ask them what kind of power their car makes. My guess is under 400rwhp, let alone 500rwhp. Until you build one, you really don't appreciate that while a 400rwhp LT1 can be built for maybe $3-4k starting with a stock car, a 500rwhp LT1 is a couple multiples of that figure.
Heads: $2500
Cam/valvetrain/timing: $1400
Rotating assembly: $2500
TB/Inj/Fuel Sys: $1500
Headers/Exhaust: $1000
Machine Work w/ splayed: $1000
Tuning: $500
Gaskets/Misc: $500
Balancer/Pan: $600
That puts the total at: $11,500, and this assumes you have ALL the other supporting parts including clutch, suspension, drivetrain, etc, etc.
I'm sure there will be people that respond saying you can get the heads for $2300 instead of $2500 and the headers/exhaust for $800 instead of $1000, etc, and cut corners. I'd ask them what kind of power their car makes. My guess is under 400rwhp, let alone 500rwhp. Until you build one, you really don't appreciate that while a 400rwhp LT1 can be built for maybe $3-4k starting with a stock car, a 500rwhp LT1 is a couple multiples of that figure.
