biggun6ss Posted May 19, 2005 Report Posted May 19, 2005 I happen to have a spare banshee head off a friend of mine. Just wondering, when you mill the head lets say .030, are there any special cuts or is it just a straight across mill? Quote
broke Posted May 20, 2005 Report Posted May 20, 2005 A straight cut is good for a cheap upgrade. Getting the dome reshaped works better, but also costs more. Quote
BdBanshee Posted May 20, 2005 Report Posted May 20, 2005 It's pretty simple, just set it up to remove the same amount over the entire gasket surface (.030"). Don't clamp it down by any means that will stress the metal so that when you unclamp it it won't be flat like it was when clamped. That sounded confusing! Try to set it up so when machined it is in a relaxed state, is that any better? It's a good cheap mod. Enjoy. Quote
Stinger Posted May 20, 2005 Report Posted May 20, 2005 I happen to have a spare banshee head off a friend of mine. Just wondering, when you mill the head lets say .030, are there any special cuts or is it just a straight across mill? 371505[/snapback] I took .038 off of mine and got 21cc domes out of it. This gave me 152psi compression...just right for pump gas as far as I'm concerned. Quote
biggun6ss Posted May 21, 2005 Author Report Posted May 21, 2005 I don't know anthing about reshaping the domes I have some real good friends who are machinist so i'll let them handle the milling. What do I need to do to reshape the domes? Quote
boonman Posted May 25, 2005 Report Posted May 25, 2005 You need a lathe to re-cut the domes. And some knowledge of combustion, and physics.... And some good tooling. Quote
it's stolen Posted May 25, 2005 Report Posted May 25, 2005 I had a friend of mine mill my head and reshape the chambers. he milled off .065 and when he was done the he checked the cc of each chamber. they were at 17cc. it runs good at high altitude and premium fuel. Quote
biggun6ss Posted May 25, 2005 Author Report Posted May 25, 2005 So if i just get the head milled .030 and don't reshape my domes will it not be any better? I know some really good machinist but don't know if they can reshape the domes. I will have to ask! I am confused now about what to do Would it be better to send it to Patriot or Trinity? Quote
it's stolen Posted May 27, 2005 Report Posted May 27, 2005 If you mill the .030 you will notice a difference, milling a head is worth the money you will spend on it. Quote
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