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hey guys i got a avc-r installed in my car and on cold nights i seem to have some overboosting problems.....despite the help of some people from the forums...thanks franks !!! :D

I still have the problem....so i wanna know if EBCs meant to be 100% accurate or is some overboosting negligible ???

mind you it is only overboosting by 0.01 - 0.04 bar....but still it annoys me ! :(

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The AVC-R is actually down towards the unreliable side of the scale as it is only controlled by a single solenoid.

The Trust Profec B II and Blitz SBC use a dual solenoid and can control boost a bit better, but the best money can buy you is the HKS EVC Type 5 which uses a stepper motor.

But... then again these big differences only start coming into play when you hit around 14psi or higher.

the quality of the solenoid used by APEXi in the AVC-R is very high... I'm using a URAS/Blitz SBC iD D1 Ltd Ed. myself, and it's very stable once you've set it up properly, but I still prefer the A'PEXi unit. have heard good things bout the HKS unit but haven't used it so can't comment.

shonen.

the AVC-R will spike just a little initially. Maybe 1-2psi then it will come back down to your setting.

As others' have said, it's just the solenoid.

knore, Apex may hold the market as the AVC-R is nice to look at with it's blue screen etc.

THe HKS items dont look as falsh evc 3/4 but they are far bettter.

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