GordMurray

iTrader: (1)

Hi all,

I've got a LS1 in a very light weight swap track car. To run the car on index, I figure I need about 220 - 240 WHP. If I want to run up a level, I'll need about 260 - 280 WHP. My thought here is to "detune" the engine to provide the relatively low power I need. Another thought is that this motor will last FOREVER producing this power levels. How do I go about this? It is TBW, so can I just limit the throttle in "software" to provide the needed power levels? Or set a crazy low rev limit. Any ideas or suggestions?

Thanks as always,
Gord.

VandykeT/A

I don’t really know that you could detune it to the point of 220. The only thing I can think of would be pull quite a bit of timing out. Leaning it out would help but I’m not a fan of running it at stoich at 5500. You could limit it by rpm. From what I remember the weaker LS1 cars made 280s.

G Atsma

Build a 4.8L .

LLLosingit

iTrader: (4)

Air restriction, It can only make power with air and fuel. Many dirt track classes are required to run 2 barrel carbs, Nascar runs a plate restrictor on super speedways, You can still get some RPMs out of it but they kill power.

andy burdess

Pull timing. Leave fuel optimized and pull timing until you hit power required. I see it regularly since I start my tunes with low timing as a safety until I get fuel optimized.