08-03-2009, 07:26 PM #1
Exhaust port polish , without porting?
I have seen some pics of those pretty hot looking ported cylinders from lowell and woody (freaking excellent job! and very good reputation). I see the exhaust ports are mirror polished. I don't have a budget right now, to pay a good porting job as I would would like to. But since my cylinders are outside, yet I thought I could do some polishing to the exhaust ports without changing the dimensions.
The question is: will polishing alone give me any noticeable gains? some rpms or maybe better acceleration?
08-03-2009, 07:50 PM #2
gimme a call chris...775-315-0222
08-03-2009, 07:50 PM #3
08-04-2009, 12:28 AM #4
08-04-2009, 07:38 AM #5
08-04-2009, 07:59 AM #6
SEND TO WOODY!!!!!!!!!
WORTH EVERY DIME (my arms hurt a little bit) Hopefully more when broken in!!!
My build is coming !
08-04-2009, 12:26 PM #7
So if his cylinders are out and he doesnt have the budget for a port job why would you advise him against polishing his ports. doesnt carbon buildup on the ports cause turbulance, restriction, loss of power and RPM? and cant it cause powervalve problems? so if no carbon builds up on his smooth exhaust ports that'll allow the hot exhaust air to escape faster, smoother, free-er?
Chris - Im sure you could go to any auto machine shop and ask them to spend 20min a cylinder to clean up the casting flash. I cant possibly see a downside to this at all. an improvement, however small, is still an improvement.
08-05-2009, 07:30 PM #8
Or you can just do the "cheater porting " by stacking the gaskets under the cylinders..
08-05-2009, 08:27 PM #9
08-05-2009, 08:54 PM #10
Interesting...mixed opinions but the pros are doing it, I guess it will not hurt.
what do you mean by gasket stacking?, have you guys actually test it? what did you do? use two or three gaskets? is it a Noticeable difference?
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