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Originally Posted by Sillysspeed
So I got the P1x on otherwise stock lt1 car. On lt4 fueling it’s maxed out in cold weather at e50. It’s making around 7psi max. I’d like some more power. What do you guys suggest next?
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Agreed with King and Josh, those are your 2 best options. Keep in mind, that P1X will start to run out of steam when you pulley down a couple sizes. You are currently at the fuel limit and not too far off from the blower limit. I'd leave it as is, or get ready for a full build including both engine and blower upgrade. Another option would be sell it as is and get into a ZL1 and build that. It will end up costing the same either way in the end.
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[SBE] ECS NOVI 1500 supercharger, 2" Longtube headers, flex fuel, LT4 injectors, LT4 HPFP, baro breakout
Tune date and results to be determined