INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

PTV issue? L92 and LQ4

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Old Mar 11, 2008 | 09:43 PM
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DaDon357's Avatar
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Default PTV issue? L92 and LQ4

What is it and will I have it? I have a stock LQ4 motor with L92 heads unmilled with .600 lift and a 228/236 115 cam and I would like to know what issues may arrive from this and if it works what horsepower numbers rwhp through an automatic and flywheel.

http://www.impalassforum.com/vBullet...=191204&page=2
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Old Mar 12, 2008 | 10:53 AM
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Thus was my setup: Essentially it was a LQ9


LS2 Pistons and Rods
10.9:1 Compression
L76 Intake
L92 Heads UnMilled
LS2 90mm TB
228/232 .595 112 Comp
4.10 Gears
Pacesetter LT w/ORY

Stock Stall
Stock 4L60
Stock muffler
Crappy plugs

Dyno put down 368/355

https://www.performancetrucks.net/fo...d.php?t=394008
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Old Mar 12, 2008 | 05:09 PM
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Originally Posted by 04BlackSilverado
Thus was my setup: Essentially it was a LQ9


LS2 Pistons and Rods
10.9:1 Compression
L76 Intake
L92 Heads UnMilled
LS2 90mm TB
228/232 .595 112 Comp
4.10 Gears
Pacesetter LT w/ORY

Stock Stall
Stock 4L60
Stock muffler
Crappy plugs

Dyno put down 368/355

https://www.performancetrucks.net/fo...d.php?t=394008
wow, i was expecting numbers in the 400 ranges..what would I have to do to get into the 450-500 rwhp range..
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Old Mar 12, 2008 | 06:51 PM
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i am building an lq4/l92 combo, and i too was hoping for 400+ at the wheels. im just gonna build the motor and see what happens. im gonna run the l76 car intake and long tubes.
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Old Mar 18, 2008 | 04:54 AM
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Between this:

Stock Stall
Stock muffler
Crappy plugs


and the wrong cam for that kind of setup, I was suprised I got 368. With the right exhaust and cam selection I think I would be easily in the lower 400 range.
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Old Mar 18, 2008 | 08:13 AM
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I am surprized there is not more info here about this swap, I wonder what a better cam would be??
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