Ap1 supercharged SOS suddenly lost lots of power!!!
What's up guys hoping somebody can help me out here! Supercharged ap1 HAD 380rwhp and now car is slow! Like I lost 100whp! Boost is ok 10psi just feels sluggish!
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it could be several things, if your location is still hot like mine is here in Florida you could have a hot soak issue which is common, could be you need to tighten your belt which is also common, your water pump could have failed which will increase intake temps which also is common. I would check the belt tension and water pump first before thinking starting a panic about a tune issue. How are you reading boost? Through the Ecu?external gauge? Both? I currently use both as once on the dyno I was getting funky readings, so I use them to check and balance each other
What’s up guys so here’s what I got so far I am boosting at 9.6 psi on 10 psi pulley at 8900 rpm which is ok, map sensor reading ok, visually inspected everything piping and belt tension all ok! I noticed when I floor it get extremely rich down to 10 which is as far as my gauge reads may be even richer which explains my power loss, I can hear the engine tone change at 4500 which is my vtec engagement so sounds like vtec is working checked plugs and gapped at .022 can it possibly be a bad map sensor causing me to run rich and also at idle car bounces between 13.8 and 16 sometimes! Mods list are sos stage 2 is 1000 Waldroop 255 q300 70 mm throttle body running 10 psi pulley on haltech pnp Also if it was a bad map sensor wouldn’t car run like crap ? I did pull and blow on it and car was a bit more peppy
Last edited by Nick2t1me; Oct 16, 2017 at 05:10 PM.








