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Overboosting

Guest Robo's

By Guest Robo's,
in General Automotive Discussion

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Guest Robo's

Guest Robo's

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Im playing around with the Boost controller on my R33 and one day im getting backfires, surges, misses , you name it, as soon as i put the hamer down.

Turn the boost back and then it only surges a little, but goes much better.

Is this boost Cut-off and if so how does it work?

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Guest Robo's

Guest Robo's

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Also i notice, the more your drive it or the warmer it gets, the problem is more noticeable, i guess thats heat soak?

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Sime Contributor

Sime

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I had the same problem Robo. I was running 12 psi but not hitting the fuel cut. But the power would surge then drop off a couple of times before I hit the red line. This would only happen when the car had been driven for a while. My mechanic put colder plugs in which improved the problem but didn't fix it completely. I dropped the boost down to between 10 and 11 psi and now it goes like a dream.

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