dspy

<center><img src="http://us1.webpublications.com.au/static/images/articles/i6/0685_4mg.jpg"></center><p>I've been reading the autospeed article on using a manual boost control setup in order to prevent wastegate creep. Is this still an issue w/ chipped cars and would this setup be beneficial if set to the same psi (18) as my chip?

Any ill effects from such system?

TIA<ul><li><a href="http://autospeed.com/A_0685/cms/article.html">http://autospeed.com/A_0685/cms/article.html</a</li></ul>

A4orce CJ

There is a much longer answer, but NO. Your chip is better.

SameerP

that is because chip tuners increase boost in the mid range (where the KO3 shines) and taper it off as you reach redline. If you have a EBC/MBC then you are setting your boost at a specific level, and so either you give up that extra mid-range boost from a tuner chip, or you have to push your KO3 beyond its efficiency map (which is not good for the turbo or the engine).

For a bigger turbo that can hold boost linearly through redline, it would be something to consider.

Cheers,
Sameer

Stratocaster1422

mmm boost surges and an overspun turbo

Afrosquad

Umm, boost surges? Highly doubtful...

xr4tic

this would give the benefit of quick spoolup, but still allow the ECU control over 10psi.

Since the K03 already spools up pretty quickly, you may not notice a difference.

dspy

so the wastegate becomes partially opened before the desired boost is achieved thus delaying power?

xr4tic

The N75 is just a bleeder valve, when it's activated, it bleeds off air, but some still gets to the wastegate.

How much actually gets to the wastegate depends on how much the N75 can actually bleed off, what the current line pressure is, and what the ECU is telling the valve to do.