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Most power from a 370??

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Old Nov 20, 2005 | 10:26 PM
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Default Most power from a 370??
What is the most power that could be had out of a 370 LQ9?? I have the following componets, what can I expect?

heads that flow 310 cfm @ .600 lift
custom FMS 24x/24x cam .6xx lift on 114 lsa
QTP 1 7/8 race high merge collector headers
QTP ORY turn down
stock crank, rods, pistons, seals,
LS6 intake
12 bolt
3.73 gears
3800 stall
Katech LS6 ported oil pump
255 LPH intank fuel pump
30# injectors
built 4L60E

i am not shooting for a record, just want to know what kind of power I will be making.
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Old Nov 21, 2005 | 12:48 AM
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hrmmmm
470ish? just guessing though

most power would be up there, i believe harlan went right close to 1k on his TT
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Old Nov 21, 2005 | 10:21 PM
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Oh sorry I meant N/A, 470 ish with a tune? that sounds good, I guess I will have to spray like a 75 shot to hit 500 RWHp, lol, but I will get there.
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Old Nov 21, 2005 | 10:33 PM
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I made 522 rwhp on a 385 iron block 4.060 bore and offset stock crank.
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Old Nov 21, 2005 | 10:56 PM
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Originally Posted by 383LQ4SS
I made 522 rwhp on a 385 iron block 4.060 bore and offset stock crank.
holyl crap!
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Old Nov 21, 2005 | 11:32 PM
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Originally Posted by ColePatWithem
What is the most power that could be had out of a 370 LQ9?? I have the following componets, what can I expect?

heads that flow 310 cfm @ .600 lift
custom FMS 24x/24x cam .6xx lift on 114 lsa
QTP 1 7/8 race high merge collector headers
QTP ORY turn down
stock crank, rods, pistons, seals,
LS6 intake
12 bolt
3.73 gears
3800 stall
Katech LS6 ported oil pump
255 LPH intank fuel pump
30# injectors
built 4L60E

i am not shooting for a record, just want to know what kind of power I will be making.
440rw, get a 90/90
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Old Nov 22, 2005 | 01:30 AM
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Yea this is my second car though, so 90/90 really isnt worth another 20 RWHP for $1000 right now. I just want close to 450 at the wheel.
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Old Nov 22, 2005 | 10:35 AM
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Check sig. I made 490/447 with 90/90, a bone stock lq4 shortblock, ported heads,and a cam in the low 24x range with pacesetters. Im switching them out to Kooks 1 7/8, so I should break 500 on the stock shortblock, with 91 octane.

Your intake will cost you around 25hp at that level over a ported Fast, so you should hit 470s with a really good tuner.


EDIT: just noticed 4l60, so you SHOULD be around 450-460 if you have a 9inch/12bolt.
Last edited by lt1dave; Nov 22, 2005 at 10:40 AM.
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Old Nov 22, 2005 | 11:24 AM
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Originally Posted by 383LQ4SS
I made 522 rwhp on a 385 iron block 4.060 bore and offset stock crank.
wasnt that on a nasty SR setup too?
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Old Nov 22, 2005 | 01:14 PM
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yeah...solid roller setup. That was with a Dennys driveshaft and 28x10.5 slicks with 4.11 gears as well. Not very dyno freindly.
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Old Nov 22, 2005 | 08:06 PM
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Cool, i will just be satisfied if it is near 450 RWHP
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