1250 conversion
Road Warrior
Joined: Jul 2007
Posts: 1,898
Likes: 67
From: Saint Amant, Acadiana
It will not affect compression ratio, it is about fill rate, polishing will help to reduce the restriction. Not same as porting, BTW.
Road Master
Joined: Oct 2010
Posts: 958
Likes: 0
From: Hartford, WI
Extreme HDF Member
Joined: Jan 2012
Posts: 12,986
Likes: 712
From: NE Philly
Yes, I'm aware the porting (at least conceptually) actually removes metal and reshapes the chambers. What I didn't (and still don't really) know is how much tangible effect the polishing does with all else being equal.
I'd be interested in dyno pulls to quantify the improvements of Kevin's polishing.
Yes, I'm aware the porting (at least conceptually) actually removes metal and reshapes the chambers. What I didn't (and still don't really) know is how much tangible effect the polishing does with all else being equal.
Yes, I'm aware the porting (at least conceptually) actually removes metal and reshapes the chambers. What I didn't (and still don't really) know is how much tangible effect the polishing does with all else being equal.
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DKCustomProducts.com
DKCustomProducts.com
Elite HDF Member
Joined: Aug 2011
Posts: 3,932
Likes: 45
From: Stockbridge GA
Whats with all the ****s? Oh wait I know.....not only were they banned for posting a dyno run showing pulstar plugs are just normal plugs........their name is now x'd out so nobody can find what they offer when they do a search. In case your wondering Im talking about N........R.........H.........S 
Carry on.
Carry on.
Grand HDF Member
Joined: Dec 2012
Posts: 3,782
Likes: 1,202
From: river
I have a 1250 kit on my mine. Not so much the extra 50cc being a big deal as the high quality of cylinders and pistons. They are top notch.
Extreme HDF Member
Joined: Jan 2012
Posts: 12,986
Likes: 712
From: NE Philly
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Grand HDF Member
Joined: Dec 2012
Posts: 3,782
Likes: 1,202
From: river
Ive had a few sets of heads ported over the years and nothing was polished on them. Im not for sure, but I think the port and polish term is tossed around a lot. I dont think polishing them will do hardly anything.
Extreme HDF Member
Joined: Jan 2012
Posts: 12,986
Likes: 712
From: NE Philly
Whats with all the ****s? Oh wait I know.....not only were they banned for posting a dyno run showing pulstar plugs are just normal plugs........their name is now x'd out so nobody can find what they offer when they do a search. In case your wondering Im talking about N........R.........H.........S Carry on.
Carry on.You're saying that Dan and NRHS have been banned from HDForums for providing the test results of a spark plug that Dan was asked to provide? So, because Dan's company didn't pay as much money as that spark plug company to HDForums, his objective results are nullified?
Personally, if this is the case, no-one on these forums should just accept that. Remember folks, it's us, the members, and our contributions that make up this community. Not the other way around.
I'd like the admin of HDForums explain their reasoning. I know that will not happen.
Who here thinks this type of tactic is acceptable?
If I am wrong in anyway I will state I'm wrong and publicly apologize to the HDforums staff. If I'm not wrong then I will stand up against an unfair policy. Opinions should not just go to the highest bidder.