HP numbers before FI
HP numbers before FI Hey guys,
Anyone want to give me a rough idea on what kind of numbers I can expect from this setup, before I throw on the D1SC? Some other questions, too.
Forged bottom end 346-350CI(depends on builder and options)(probably custom pistons to bring CR down to 8.5:1)
Stage II 6.0L Heads (not sure on builder)
Blower Cam (Whatever is most blower friendly, that my builder recommends)
LS6 intake (Should I go FAST w/ 90mm TB, is it worth the $900?)
Ported T/B
Ported Oil Pump
50lb/hr injectors
Chromolly push rods(Don't want to bend the stock ones with missed shift)
All bolt ons
Shorty/intermediate headers(they're kinda inbetween)
That's basically all I can think of right now. Pretty much the only thing on this engine that will be stock, is the block, and possibly the LS6 intake.
Thanks in advance,
Ralph
P.S. This is going in my pro-touring 68 Camaro, I'm hoping to run about 12-14psi of boost when I go FI (shortly after it's on the road) and am aiming for 600-650rwhp.
Anyone want to give me a rough idea on what kind of numbers I can expect from this setup, before I throw on the D1SC? Some other questions, too.
Forged bottom end 346-350CI(depends on builder and options)(probably custom pistons to bring CR down to 8.5:1)
Stage II 6.0L Heads (not sure on builder)
Blower Cam (Whatever is most blower friendly, that my builder recommends)
LS6 intake (Should I go FAST w/ 90mm TB, is it worth the $900?)
Ported T/B
Ported Oil Pump
50lb/hr injectors
Chromolly push rods(Don't want to bend the stock ones with missed shift)
All bolt ons
Shorty/intermediate headers(they're kinda inbetween)
That's basically all I can think of right now. Pretty much the only thing on this engine that will be stock, is the block, and possibly the LS6 intake.
Thanks in advance,
Ralph
P.S. This is going in my pro-touring 68 Camaro, I'm hoping to run about 12-14psi of boost when I go FI (shortly after it's on the road) and am aiming for 600-650rwhp.
Originally Posted by 5-liter-eater
I got about 430 then 600ish at 8 psi
430? I Was thinking more like 370, and that I was going to have to run mega boost like 14psi to see 650ish...guess I underestimated the power of the almighty LS1 
LS1 
TECH Enthusiast
Joined: Dec 2001
Posts: 553
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From: Columbia, MD
Low compression 346ci with heads and cam should be just under 400RWHP.
You will lose about 15-30HP by going low compression (depending on how much compression you dropped).
So subtract that from your average heads and cam setup (400-425RWHP), and that takes you to around 370 to 395.
But don't worry, the blower wil MORE than make up for that.
You will lose about 15-30HP by going low compression (depending on how much compression you dropped).
So subtract that from your average heads and cam setup (400-425RWHP), and that takes you to around 370 to 395.
But don't worry, the blower wil MORE than make up for that.
5-liter-eater..do you have the LSX with the 78 or 90 mm TB?
Big Bos, damn you're a brave man! 17psi of boost, is alot
Crunch, 370-395 is what I had in mind, and is what I was hoping for...at around 3200lbs w/ me in the car, it will still be decently quick, even with the 2:73's or 3:23's (haven't decided yet) but once the blower goes in and the boost gets turned up 
Big Bos, damn you're a brave man! 17psi of boost, is alot
Crunch, 370-395 is what I had in mind, and is what I was hoping for...at around 3200lbs w/ me in the car, it will still be decently quick, even with the 2:73's or 3:23's (haven't decided yet) but once the blower goes in and the boost gets turned up
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78 lsx with stock TB ported...like I said with low compression I still made 420-430 rwhp. But Im a 6 speed and didnt go the little cam route. My car still gets 18-20 mpg idles fine and has ac.
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my motor made @ 330 NA and 775 16psi later
my heads are not high dollar and my cam is 226/224 .523/.510 115*
all you need is a strong bottom end, let the boost do the work.
my heads are not high dollar and my cam is 226/224 .523/.510 115*
all you need is a strong bottom end, let the boost do the work.