Re: Motobecane SHA 15.15 Dellorto..? or others

brian schulz /
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Gotcha.

I have a library of gasket thicknesses as I had a puch TCCD 70 cc kit and you have to deck the hell out of that cyl.

last year 3 av10s setups with Doppler heads and cyl. about 1.0mm squish.

over the winter (since I fried a couple the last year) I placed a thicker gasket on the base. .7mm and 1.0mm. the squish on one was 1.2 the other 1.43mm.

really didn't see a huge drop in performance between the 1.0 and 1.43mm as far as top end speed. and I was willing to sacrifice 5 mph but I don't think I lost anything.

On a build I am currently working on, I was going to deck the cyl to match up the exhaust port and BDC and then use a manufactured moby 50cc metal head gasket to add to squish. Reason is I really am in the dark about over decking the base gasket and having the exhaust port and piston not synced together.

what are (if any)the negative impacts on exhaust timing if you "over" deck the base gasket?

I also switched the 3rd av10 to a bidalot head. this vs' the doppler head with the same base gasket added a significant amount of squish to the setup.

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Subject Written By Posted
  Motobecane SHA 15.15 Dellorto..? or othersTopic by: julian schroder julian schroder 05/27/14 08:16PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Michael Sheeler Michael Sheeler 05/27/14 08:55PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: julian schroder julian schroder 05/28/14 12:38AM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Brent Bublitz Brent Bublitz 05/28/14 09:09AM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: M-Tenn Aaron M-Tenn Aaron 05/28/14 09:26AM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Mel Dyer Mel Dyer 05/28/14 09:58AM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: julian schroder julian schroder 05/28/14 07:34PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: moby mcfly moby mcfly 05/29/14 02:13PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Brent Bublitz Brent Bublitz 05/29/14 04:56PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Mel Dyer Mel Dyer 05/29/14 05:15PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: moby mcfly moby mcfly 05/29/14 05:34PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Graham Motzing Graham Motzing 05/29/14 05:55PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: brian schulz brian schulz 05/30/14 10:10AM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Graham Motzing Graham Motzing 05/30/14 10:50AM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: brian schulz brian schulz 05/30/14 12:34PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: moby mcfly moby mcfly 05/30/14 12:24PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Graham Motzing Graham Motzing 05/30/14 12:56PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: brian schulz brian schulz 05/30/14 01:04PM
  Re: Motobecane SHA 15.15 Dellorto..? or othersRe: Brent Bublitz Brent Bublitz 05/30/14 03:47PM

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