LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Low comp 383 hp/tq guess?

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Old Apr 10, 2009 | 01:08 AM
  #1  
LT1 POWR's Avatar
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Low comp 383 hp/tq guess?

So I don't think I'll have enough money to get the blower this year so I'm thinking about just putting everything in without the blower and getting that next year. I'm wondering what kind of power I should expect.

Forged 383 around 8.5-9.0 comp ratio
Heads that flow in the 330's
Blower cam
Duration
Intake:224.5
Exhaust:231.1

Lift
Intake:5578
Exhaust:.56422

LSA 114.1
Full exhaust
Single plain vic jr with 4150 tb

This will be going through a built 4L60E with a 2800 stall and a strange 12 bolt with 3.73 gears.

Just wondering what kind of hp/tq numbers to expect with the low compression?
Old Apr 10, 2009 | 01:30 AM
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Maybe I am behind on times, but 330 seems quite high for any LT1 head.

My guess is around 450, but my guessing is not to good haha.
Old Apr 10, 2009 | 10:33 AM
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360-370rwhp? idk
Old Apr 10, 2009 | 04:14 PM
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Originally Posted by bombebomb
Maybe I am behind on times, but 330 seems quite high for any LT1 head.

My guess is around 450, but my guessing is not to good haha.
Its not a LT1 casting, and I think 450 with only around 9.0:1 would be pushing it. I'd be nice if it does, but I seriously doubt it. I guess we'll see though when time comes to put this motor together.
Old Apr 10, 2009 | 05:03 PM
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Even with nice heads and the longer stroke, a 224/231 cam isn't going to put 450 to the wheels with low compression.
Expect to be in around 390-410 @ 5700rpm

What kind of boost + intercooler setup were you planning on running on top of that?
Old Apr 10, 2009 | 09:37 PM
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Originally Posted by James Montigny
Even with nice heads and the longer stroke, a 224/231 cam isn't going to put 450 to the wheels with low compression.
Expect to be in around 390-410 @ 5700rpm

What kind of boost + intercooler setup were you planning on running on top of that?
Large 4" core FMIC with a F1A. Possibly meth if needed.
Old Apr 11, 2009 | 07:34 PM
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Originally Posted by James Montigny
Even with nice heads and the longer stroke, a 224/231 cam isn't going to put 450 to the wheels with low compression.
Expect to be in around 390-410 @ 5700rpm
What heads do you have that flow 330?

if you would have a bigger stick it would do more na but as quoted, a 224/231 isnt to big. With 18psi it will do great but I wouldnt expect 400rwhp give or take a few na. Cant wait to see the FI numbers.
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