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Porting


jmart

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To be honest... they're relatively pointless. I bought a set and like everyone told me when I was talking about them... the only semi useful item was the exhaust template, and all I used it for was the top radius of the port.

There's a lot of information about porting out there, it takes some digging, but its there. I have a thread about porting with the templates here on the HQ if ya do a search. What I found was there's a lot more to porting than just slapping some templates in and carving away.

I would sell you what I have, but I altered the templates for my setup.

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spending some time reading will result in far better results.

 

Porting is not duplicating ports. Its learning what makes it 2 stroke tick. It took me 3 years to get my old setup where it needed to be. a change here and there. learning what does what. The result? a 350 that ran or outran alot of name brand setups, including bigger setups.

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Agreed.  Learn the basics, then the specifics.  Look at professionally ported cylinders and get an idea of the different methods used for the same thing.  Think reasonably, plan it out, and get a decent setup and you'll be off to a great start.  Just be prepared to not make an arm-ripping port on the first go.

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i doubt hes wanting to learn the how, what and why. but rather just grind alittle here and there and make the bike a bit faster than it is now. besides, without a decent tool setup you cant just jump in head first. while i havent seen the racelogic templates, i assume it should have a decent exh shape that even a beginner can copy with a simple dremel and get noticable results. make the inlet windows alittle bigger and that should work fine for what hes trying to do

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I think it needs to be identified whether the OP's principal objective is to learn, make more power, or just port it for the sake of saying he ported it.

 

If you're learning, you can learn about 60% of that beforehand.  The last bit will come when you start grinding and see that you have more questions. 

 

If you want to make more power, your best bet is to send the cylinders off.  The cost of a grinder and bits can easily exceed $400.  Add in the carb cleaner (10+ on your first attempt), decent vernier calipers, machinist dye, a scribe, a hone bit or hone (because you're going to nick the cylinder) and you'll be up there with the cost of some monoblocks.  Dollar for dollar, porting one set of cylinders yourself is very cost ineffective.  Porting 3 or more would be much more reasonable.  Plus, you can't hope to create a gem on your first go.  You can very, very easily make a snail with pretty ports. 

 

If you're in it for the last reason, there is a wealth of information, but none of it is consolidated.  You'll have to dig for it.  I attempted to consolidate it here when I first joined the forum, but a few people (namely ZillaFreak {one of his contributions are in my signature}) gave me some resistance and dropped it.

 

The first and third reasons are good reasons to DIY.  The second isn't so much of a good reason.  Disclose your motives and we'll go from there. 

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at no time did the OP say he wanted to learn anything, other wise the advice given would have been different. it takes time and money to learn this stuff. if you have little of both you may as well hang it up and let a shop do the work. $400 wont get you much, barely a good motor and straight hand piece. another $400 and youll have a small collection of half decent tools, but not nearly a full complete assortment. im into mine alittle over a grand and dont have a tiny 90* tool for small cylinders yet. still the tool is only affective as the person using it. and learning to use it takes a fair bit of time. so the time and money go hand in hand. this is the reality of it.

 

very few folks want to learn. even fewer want to pony up the money it takes to buy the tools.

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at no time did the OP say he wanted to learn anything, other wise the advice given would have been different.

 

Then why are you responding?

 

At no time did he state any intentions whatsoever.  You are arguing a side that you assumed to exist right after you state that I can't assume something.  If he is hell bent on using a racelogic template, he needs to state so.  Otherwise, I'd advise against it until he does.  He may not even be doing the work.  Who knows?  We DO know what he has given us and that is that he wants a racelogic template.  We don't know if some dipshit advised he get one, if someone told him that they did their cylinders with one, nor anything else.  I'm going to advise against it until he either tells me to piss off or until he changes his mind.

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he wanted racelogic templates. anyone with IQ over 3 would have thought to check that website. but that wasnt the case so i responded with 'check racelogic.com'

 

and he is hell bent on templates. he clearly asks on the first post if someone has them or where he could buy them

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