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Hesitation after 4000 rpm under boost, questions...

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Old 07-14-07, 11:51 AM
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SOUL-LESS

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Hesitation after 4000 rpm under boost, questions...

So, my car will stumble, misfire, etc. after 4000 rpm under boost. it seems to drive fine above 4000 rpm out of boost, however im trying to stay away from that in case im running lean. The car has a a full exhaust(no cats), intake, TB mod, Full emmissions removal, and stock boost. From what ive read, it seems my secondaries arent coming online. My question is, is there anything other than that that could cause this? Would not the engine act similiar out of boost at the same rpm if the secondaries werent coming online?
Old 07-14-07, 12:20 PM
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HAILERS

 
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https://www.rx7club.com/rtek-forum-168/secondary-transition-stumble-670983/
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