Anyone running a ported head(not hogged out) with stk valves? What gains did you see? I'm thinking about port work when i install my piston and cams(RWR sport), but i don't wanna go up on the valves sizes(usually loose tq down low that way). Who would you reccomend? What does it usually run to have it done?

 

Hmmm...$400. Dang, i could get my 'Busa head done for $500 and it was a 4cyl(VERY reputable shop!). Who does portwork on DS's? Does that include a valvejob?(3,4 or 5 angle?) Thanks....

 

I think the head work cost me $500 of $550 with 1mm larger valves form Sam Coe.

 

ditto what marky said here - same with me. a local shop near me charged $200 for porting of my head and match porting of intake to head and carb, and he has done quite a few rotax heads, all on flowbench environment.

 

mine was done bye a local guy it was around 200, he matched the intake manifold and got another 30% flow on the bench, and it does run better.

 

I have heard that if you plan on staying with stock bore there isn't much extra to be had with larger valves (although I think Ron Wood would disagree.)

If you go to a larger bore, the larger valves should really help you. As the bore size increases you now have a larger air pump so larger valves will allow the larger air pump to function better.

If you do have someone work on your head, keep in mind the guys that install larger valves will probably not work on your head if later you want them to. They don't want to be responsible for the work that was done before them.

 

Well I didn't get to Flow bench mine but I know a Kick but port job when i see it and man!! Mine is SWEET!!! I won't know how it goes until I actually get to ride against somebody though. The people who did mine specialize 90% in head work!!! Cost me $1050.00 complete!!!![img]i/expressions/face-icon-small-happy.gif[/img] That is with the biggest valves you can get!

 

$180 for a jewl like port job here, head & intake manifold both. Stuff sure is cheap 'round these here parts! Oh yeah, he also threw in a 3 angle valve job!

 

Hillbilly e-mail me with that guy's info.. I want a good deal ona port job

entomber@comcast.net

 

Check you PM