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4K-c turbo blow thru setup with stock carby?


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I’ve heard they can handle 6 pretty safe. But 8 and 10 shortened the life of the a fair bit haha 

ive got mine set to 8 psi but I will give it a go on 10 as well. 

Didnt seem to build up to much boost free reving but should be alright under load. I didn’t look at the boost gauge when I started it.

tuning it is definitely going to be abit of a nightmare that’s for sure 

 

Edited by Mr.pickles
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Nah, it won't boost free-reving, that takes no power to do.

If you haven't done it already, PM 68KE15 and Taz_Rx and ask them what advance and jets they used, at least they've both built turbo 4Ks in the past.

You'll end up needing a mixture display or some dyno time to make sure the mixture doesn't lean out somewhere in the power curve. I've used a mixture display a lot, I like being able to glance at it under all sorts of driving conditions.

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