Thread: 1200 Cylinders
10-14-2011, 04:17 AM #1
While i am waiting on my new top end to come in i thought i would have a crack at cleaning up the exhaust ports on the 1200 pv cylinders, i know it looks like there are lines and dints but when feeling with finger it is very very smooth, it looks like this because what wheel i used to polish them. Will there be any performance gains by doing this?
10-14-2011, 04:44 PM #2
The more polished the less of a grasp carbon can get on the walls, thus making them a bit cleaner in the long run.
10-14-2011, 08:15 PM #3
10-16-2011, 11:13 PM #4
- Join Date
- Jan 2006
- Texas City, Texas
I think you will get a little better return on your effort when you take a hard look at your exhaust manifold gasket and match it with the cylinders. Some times they do not mate perfectly because the exhaust holes in the gaskets are a tad small. This makes them restrictive.
You can tell if the exhaust ports do not match if you find carbon deposits around the exhaust holes in the gaskets.
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