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Low power LS!!??

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Old Nov 9, 2020 | 07:48 PM
  #1  
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Default Low power LS!!??

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.
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Old Nov 10, 2020 | 06:37 PM
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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.
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Old Nov 10, 2020 | 08:08 PM
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Build a 4.8L .
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Old Nov 10, 2020 | 08:25 PM
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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.
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Old Nov 15, 2020 | 12:24 AM
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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.
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