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Post by barnsleybill on Aug 1, 2021 12:18:29 GMT
I've seen a Polini head on ebay, similar to the AF Monster head where there are additional fins on the underside of the bottom fin.
Has anyone used one of these on a DR kit? Does it bolt straight on or need machining?
Sorry don't know how to attach pics.
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Post by jbcollier on Aug 1, 2021 14:12:04 GMT
How about posting the link?
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Post by barnsleybill on Aug 1, 2021 17:07:04 GMT
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Post by jbcollier on Aug 2, 2021 3:28:37 GMT
It would bolt on but you would have to check the squish.
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Post by barnsleybill on Aug 2, 2021 10:08:02 GMT
Thanks that's what I thought.
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Post by tzsteve on Aug 2, 2021 16:47:33 GMT
its hard to tell
but is that head a central plug
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Post by barnsleybill on Aug 2, 2021 18:57:22 GMT
Its hard to tell, that's the only picture but it's possible.
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Post by gugne on Aug 3, 2021 10:13:05 GMT
The photo says that it's "purely for information" so that might not be what is supplied. Maybe check for other images using the part number they're using: 211.0005
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Post by tzsteve on Aug 3, 2021 17:09:19 GMT
The photo says that it's "purely for information" so that might not be what is supplied. Maybe check for other images using the part number they're using: 211.0005 that`s nice so it`s pay now and hope you get something useful |
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Post by barnsleybill on Aug 3, 2021 17:35:09 GMT
I've tried using the part number for a search which came up blank.
However, while looking on the 'vespatime' site they use the exact same pic for a Polini PX head.
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Post by barnsleybill on Aug 3, 2021 17:43:51 GMT
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Post by jbcollier on Aug 4, 2021 13:35:07 GMT
I suspect it is just the recent head for the Polini 135 kits:  It should fit on but, again, you'll have to check your squish. Worth the expense and trouble? Don't think so myself, not on a DR kit. |
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Post by jonnysnatchsniffer on Aug 21, 2021 21:07:01 GMT
the dr piston has a rounder top that the polini piston, so while it would work the squishband would be wrong, this can lead to overheating, and pinking/detonation
so i for one would not recommend it without having the head reprofiled to suit the piston, by which time you may as well get the polini evo in the 1st place
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Post by barnsleybill on Aug 22, 2021 20:08:09 GMT
Thanks all for your thoughts, some food for thought there and some logical suggestions!
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