BakoBanshee Posted March 29, 2010 Report Share Posted March 29, 2010 Hey fellas, I haven't been on here much since getting my 700R raptor. I know, I know, but hey at least it's a Yamaha lol! So, who or what shops are the places to hit up for an awesome stock cylinder pump gas Dune Port? I plan on freshening up the top-end so I might as well get some porting done if the cylinders are gonna be off. I'm on stock bore, what is the biggest over-bore I can go? What size cc would this put me at? Thanks. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted March 29, 2010 Report Share Posted March 29, 2010 Jeff at FAST. www.farmandsandtoys.com He is a great guy to deal with. Always very helpfull, and builds some fast banshee's. Dont over bore it to get cc's all your doing is wasting the cylinder bore's. There isnt really much hp to gain by boreing. Do a 4 mill crank if you can afford it. Once you port your cylinders for a stock stroke crank they cannot be ported for a 4 mill. jeff has hot rod 4mill long rod cranks for 435. Then you will need a cool head with stroker domes. josh Quote Link to comment Share on other sites More sharing options...
gemini Posted March 30, 2010 Report Share Posted March 30, 2010 I've never had Jeff do any motor work for me but I've seen some of the bikes he's built run and they're not slow. Buddy of mine had HJR dune port and it ran really good too. Just another opinion..... Quote Link to comment Share on other sites More sharing options...
firebanshee Posted March 31, 2010 Report Share Posted March 31, 2010 I like REDLINE but all the site builders do a good job. Quote Link to comment Share on other sites More sharing options...
SD1026 Posted March 31, 2010 Report Share Posted March 31, 2010 i know jeff at fast has a raptor the runs extremely hard from what u understand Quote Link to comment Share on other sites More sharing options...
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