How to improve a LO5 motor
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Joined: Apr 2014
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From: Land Of 10,000 Lakes
Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
How to improve a LO5 motor
I have a LO5 motor out of a 1993 Roadmaster. I'm looking to get 300 hp of it. How do I do it? By the way I want to keep it TBI.
Joined: Aug 2013
Posts: 4,815
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From: MICHIGAN
Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: How to improve a LO5 motor
Well that would get you an additional 40-50 horse, right? L05 is 205 - 210 horse? L31 Vortec is 255? You'd still have a way to go to get to 300. Are the Vortec 4bbl. intake and duals good for another 45 horsepower?
Thread Starter
Member
Joined: Apr 2014
Posts: 184
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From: Land Of 10,000 Lakes
Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
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Joined: Jan 2014
Posts: 296
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From: Stanton,Tn.
Car: 97 Z71 Extended Cab
Engine: 5.7 Vortec
Transmission: 4L60E
Axle/Gears: 3:42
Re: How to improve a LO5 motor
The TBI in stock form will only support about 250 Hp,so,you need work there as well.The LT1 cam,Vortecs, good exhaust,along w/some tuning will get ya in the ballpark.
Joined: Jan 2005
Posts: 10,426
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: How to improve a LO5 motor
They flow about 490 cfm stock, 540 after ultimate TBI mods, fueling is only good to about 200 HP @ 12 psi.
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