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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
Doing it yourself and not leaving it to the pros. Much more than creating a direct shot to the port required like velocity, valve size, valve job, port matching intake, etc. etc.
Doing it yourself and not leaving it to the pros. Much more than creating a direct shot to the port required like velocity, valve size, valve job, port matching intake, etc. etc.
You know what the difference is between an amateur and a pro?
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A pro gets paid to screw it up.
Last edited by JustDave13; Nov 28, 2015 at 07:21 PM.
You know what the difference is between an amateur and a pro?
A pro gets paid to screw it up.
Back when we owned a bike shop, we shared our building with a performance shop that both hand ported and CNC ported heads depending upon the application. Believe me, its a learned art. (I don't believe any of those guys did it right their first time either.)
Back when we owned a bike shop, we shared our building with a performance shop that both hand ported and CNC ported heads depending upon the application. Believe me, its a learned art. (I don't believe any of those guys did it right their first time either.)
That's what it sounds like, a learned art.
Back in the 80s Hot Bike magazine had a really informative article on porting and polishing, they got right down to the nuts and bolts of the objective.
I was tempted to port and polish my 89 FXR but never got around to it.
If I hang on to my Softail long enough I may do it in about 4-6 years, that's when I anticipate going into motor.
Well, I think there are a couple of "pro" forum sponsors that might take exception to that remark.
I'm sure they've made their fair share of mistakes too, everybody has to start somewhere.
I've worked 30 years in the auto repair business, I've seen it all when it comes to this stuff.
The trick for those who want to do things on their own is simple. Take your time and pay attention.
Last edited by JustDave13; Nov 29, 2015 at 02:31 PM.
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I'm sure they've made their fair share of mistakes too, everybody has to start somewhere.
I've worked 30 years in the auto repair business, I've seen it all when it comes to this stuff.
The trick for those who want to do things on their own is simple. Take your time and pay attention.
I know everybody has to start somewhere, that's not my point; it's where one ends up that I was making reference to. Good luck with your endeavors; should be an interesting journey.
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