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Title: Turbo head chambers Post by: leec on August 17, 2018, 12:29:53 pm Hi guys,
Looking for some knowledge here. I see cylinder heads for use on turbo aircooled engines have a large cc volume in the chambers and kind of understand that from a compression ratio point of view. I've done something silly and started thinking! I have a pair of CB Wedgeport heads, 94 bore that have a 56cc chamber. These are currently on a n/a ida 2276cc motor. Is there a way of re-working the chamber design to get more CC in them for turbo use? What cc should I aim for? Thanks, Lee Title: Re: Turbo head chambers Post by: Martin S. on August 17, 2018, 16:06:58 pm Aim for under 9:1. Unshroud intake valves and dish the pistons. ;)
Title: Re: Turbo head chambers Post by: leec on August 17, 2018, 21:37:18 pm Thank you.
I know the valves were unshrouded when built so will have to try and gain it elsewhere? Lee Title: Re: Turbo head chambers Post by: Martin S. on August 20, 2018, 15:39:50 pm The next best place is dishing the piston which we have talked about a lot on here lately. You don't want to do the easy thing of cutting the chamber semi-hemi, or adding deck by shimming or copper heads gasket.... or do you?
Before my motor was rebuilt as a 2332, it was a 1776 Berg style with 7:1 heads and SH cut. With 15psi the turbo gave that motor such a kick in the pants it was unbelievable and lots of fun to drive! It's still fun now, but before there was no secret that it was a turbo engine :D |