sheefreak Posted January 10, 2005 Report Posted January 10, 2005 (edited) Need some suggestions for 4 stroke porting. Friend is trying to at least maintain sight distance w/me when we ride. He rides a warrior. Is willing to ship out head. Edited January 10, 2005 by sheefreak Quote
fixitrod Posted January 10, 2005 Report Posted January 10, 2005 "porting" is done in the head of a 4stroke. Porting changes intake and exhaust timing. You can have some heads made for bigger valves and such, but usually is accomplished with a new cam ona 4 stroke. Look for cams that are made for the warrior. Quote
sheefreak Posted January 10, 2005 Author Report Posted January 10, 2005 (edited) "porting" is done in the head of a 4stroke. Porting changes intake and exhaust timing. You can have some heads made for bigger valves and such, but usually is accomplished with a new cam ona 4 stroke. Look for cams that are made for the warrior. 304581[/snapback] Rod, thanks for the heads up, meant to say head, I didn't know if maybe they bored the valve openings larger and replaced w/larger valves or if this was even a possible procedure. I know if the valves were any larger, may need speacial pistons as the piston has a slight cutout for each valve. Edited January 10, 2005 by sheefreak Quote
Ducman Posted January 10, 2005 Report Posted January 10, 2005 There is a local builder in my area (looney tooners) that ports 4 stroke heads, also can sell cams and whatever else too. Test his stuff on his own dyno. He claims they have made an 80hp raptor (or at least I think thats what I remember he said). His site is new and he sells a lot more than what is shown. Labor is done at a super low rate as well. (Click Here) Quote
locogato11283 Posted January 10, 2005 Report Posted January 10, 2005 look thru dirtwheels. they usually have alot of places in there that are starting to work on 4 strokes. Four Stroke Tech comes to mind right off hand. i know there are more. Quote
theeechozen1 Posted January 10, 2005 Report Posted January 10, 2005 curtis sparks all the way, builds the fastest 4-chokes on this side of town, four stroke tech is good too Quote
buddha440ex Posted January 11, 2005 Report Posted January 11, 2005 send it to me and i'll touch it up..it wont be as good as sparks but it will make a quite bit of difference...i ported my 440ex..runs like a striped assed indian..soo..i wont charge you near as much as sparks either...if you wnat it dont just pm me.. Quote
sp1tekiller Posted January 11, 2005 Report Posted January 11, 2005 Sparks and 4-stroke tech are supposed to be good. Never done anything to a four stroke so I'm not too sure. Quote
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