Power Loss, Turning up Boost Options

[Island_Racer]

Hello,
I am wondering how i see people talking about turning up boost to 17psi on their CT20's yet no one had specified whether they changed spark plug gap nor retarded timing at all......So i turnt up my boost to 17 psi and was looking to see what happens.....sure enough i lost power on hitting my boost mark and saw leaning out on my gauges. Anyone else had this problem?

So i wanna know what plug gap the stock motor 17 psi users have
also how much to draw on the timing...if that will help

Just as a starting point. o, i doubt it is fuel.....at idle my car shows 30 psi and while driving it has maybe 35-37 psi higher than pressure (aka 5psi boost = 40-42 psi fuel....10 psi boost = 45-47 psi fuel)

This post has been edited by Island_Racer: May 11, 2013 - 10:50 AM

[presure2]

i am running .28 gap IIRC, still using stock heat range plugs. what kind of fuel do you use? that will play a big role, also alot of the guys here run water injection, which REALLY helps.

[Island_Racer]

i am running .28 gap IIRC, still using stock heat range plugs. what kind of fuel do you use? that will play a big role, also alot of the guys here run water injection, which REALLY helps.

Out here we use fuel with octane 87 or 90.....so i been using 90 or E10 90 as some of the stations give E10 90 despite their sign just saying 90 only.

Im gonna try ur gap and see how it goes.

This post has been edited by Island_Racer: May 11, 2013 - 1:42 PM