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Post by 2strokd on Jul 16, 2011 18:06:41 GMT -5
Anyone ever tried a real high compression squish style head o a 49cc?
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Post by dude on Jul 16, 2011 19:34:08 GMT -5
Never tried yet but I have a old 1E40FM motor and the head CC'ed like 6.6cc. Then I have a motoforce head that I milled to 4.2 cc. One day Ill try it.
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Post by 2strokd on Jul 17, 2011 0:36:31 GMT -5
I just got a squish style head for a 39-40mm bore and i am going to try it on the Zip.
Not sure how many cc,s the chamber is but it has a nice squish band and should actually provide some real squish with the stock cylinder.
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Post by dude on Jul 17, 2011 8:36:52 GMT -5
Did your Zip have the Hump style head on it? My Zuma did and I switched it to the flat type squish and I could tell a differents. But I think both heads cc'ed the same.
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Post by 2strokd on Jul 17, 2011 20:43:20 GMT -5
I cant remember if it has the 'hump' band around it or not. I will know tomm. because i am going to try this style head.  Here is an OEM style one without the hump.  |
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Post by dude on Jul 17, 2011 22:00:29 GMT -5
My Vento Zip had that same head (top pic, 3ribs horz.). Then I put it on the Zuma. The bottom one looks like a Motoforce/Eton head.
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Post by 2strokd on Jul 17, 2011 22:11:32 GMT -5
The top one is a squish style head, the bottom is stock CPI 49cc
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Post by 2strokd on Oct 17, 2011 7:51:25 GMT -5
K, tomm. Finally came and we switched the heads around. The Zip did have the style with the "hump" in it. This is a great mod IMO. Easy and fairly cheap! More compression+ tighter squish= more power! Just makes sense  |
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Post by tour96se on Oct 17, 2011 9:50:16 GMT -5
where did you get it?
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Post by 2strokd on Oct 17, 2011 12:21:41 GMT -5
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Post by 190mech on Oct 18, 2011 9:13:17 GMT -5
It looks like a model airplane head! :thumb:
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Post by 2strokd on Oct 18, 2011 9:38:23 GMT -5
It does dont it... Lol, wonder if it would cool better.? R/C car heads look like that too. About any lil Nitro engine has a head like that.
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Post by MAReames on Oct 20, 2011 11:32:20 GMT -5
I need to find a 50mm squish head. Any ideas?
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Post by 90GTVert on Oct 20, 2011 21:43:25 GMT -5
They're very hard to come by for the big motors other than 54mm. There was a guy on eBay selling 52mm IIRC, dunno if I've ever seen 50mm.
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