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R33 Spitting Flames!


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My car has been running rich for a while and for some reason It shot out flames from the exhaust when I was at 7,500 revs.

Does anyone know why this might be?

Also car struggles when it passes 4.5k revs. sounds like its getting cut off, it sort of stutters. A potential possibility that its having trouble pumping fuel into the engine? Fuel pump is very noisy all the time as well. Has anyone experienced this?

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What boost are you on?

Misfire under load can also be ecu's boost cut.

Flames are normal on std rb's with upped boost and free flowing exhausts. I'd replace & gap plugs to 0.8 and go from there.

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What boost are you on?

Misfire under load can also be ecu's boost cut.

Flames are normal on std rb's with upped boost and free flowing exhausts. I'd replace & gap plugs to 0.8 and go from there.

It's just running at stock boost with an aftermarket highflow turbo. I'm assuming around 7psi

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your hitting the limiter on a stock ECU, its no suprise it shooting flames. They do run 'safely' rich especially if your hitting R&R

I would stop smashing the limiter

as for the 4.5k rpm problem, checked your plugs and your coilpacks?

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