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pdidily6401

boost solenoid fail?

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ok, all done car running good on 10psi, noticed now sometimes when on WOT and then come off the pedal quick then go to reapply throttle the motor seems to have a flat spot like it is overfuelled or spark gone out , any ideas?, also partner said she saw a slight puff of grey white smoke when I got up it the other day .

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the fact that it's tuned means it'll be running a little bit leaner than normal so there'll be some extra emissions, so the puff of smoke is normal.

 

the flat spot is probably just something in the tune.

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ok got to the bottom of it, evidently it is my valve springs floating as I come off a highish reving but low load with 10psi boost, going to buy some crow springs methinks, anyone out there know a reputable south island mechanic to have this done in car? I do have a spare head off the first motor so can go that way as last resort.

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Hi, valve springs replaced with crow 95lb and new lifters also, notice now when I get up it that I am hitting the limiter at the 10lb boost, think I am going to need a retune, might jump up to 15lbs boost.

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