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Hey guys i jus did my rb25 swap,i installed a gt35 turbo,tomei headgasket,rb26 injectors,super fc,intake manifold,q45 throttle body,3 inch piping with tial 40mm wastgate and bov,the car has a automatic transmission///////////problems i am having is when i acellerate and coming to a stop the car shuts off,sometime the idle fluctuate and the battery lights comes on i have the miata battery,i am currently on 10 pounds of boost but i am not hearing the wastgate opening,any suggestion guys need help asap and what is the highest amount of boost i can safely dyno the car with

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Sounds like a dodgy battery to me, a mate just had the same issue so try changing the battery an see if it makes a difference.

Check for vac leaks it's normally something simple. Have you got a boost guage? Is it showing boost?

I'd leave the amount of boost up to your tuner as he is going to have the best idea of what to run,

Cheers

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