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#1 turbo head set up
picko Posted on: 2006/10/25 4:20
anyone out there who has built a turbo motor... what size valves do you run? my dad is building an a15 to suit a t25 rolla bearing but we are finding head setup info difficult to come by.

thanks in advance


#2 Re: turbo head set up
3Rotor Posted on: 2006/10/25 7:24
I'm running mine Stock as the get born..... though I am tempted to clean out the combustion chambers a bit.... they have some rather nasty sharp edges, and that is bad news for boosting anything approaching a bar.
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#3 Re: turbo head set up
Fat_120y Posted on: 2006/10/25 11:08
im not a15 but a12 and ive found the a12 standard size are a good go an clean out those ports it helps alot with flow


#4 Re: turbo head set up
Mildman Posted on: 2006/10/25 13:50
I've seen a certain member here hunt down and acquire a A14 head from an N10 pulsar...as he thought it had a larger combustion chamber thus a lower static compression ratio.

I belive it was everyones friend 1200rc






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