porting semi/confusion..

andy /

Ok, so ive been researching this for the past 2 or 3 weeks almost every free chance i get and im still kinda confused. ive searched the forums, read smittys porting guide like 4 times, and read a. graham bells 2 stroke performance tuning twice. im expecting a dmp 70cc kit in the mail any day and i just want to make sure i do this right. I dont want to do any extreme reshaping or anything, just match the intake and exhaust ports and case match basically. and clean up the ports inside the cylinder bore, because i hear they can be kinda fucked from the factory. i think what im most confused about is all the terms being used, like "raise the exhaust port 1 mm" or "lower intake" or whatever. does this mean basically just file off the bottom of the port for "lower" and file off the top for raise? same thing with widen?

and what exactly do you do when you chamfer the ports? im guessing it means make it so its not an abrupt 90 degree turn.

please correct me if im wrong on any of this, and if theres any other good guides out there let me know so i can read them!

whatever, any help would be awesome

Subject Written By Posted
  porting semi/confusion..Topic by: andy andy 02/15/10 08:37PM
  Re: porting semi/confusion..Re: andy andy 02/15/10 08:44PM
  Re: porting semi/confusion..Re: mattology - mattology - 02/15/10 08:54PM
  Re: porting semi/confusion..Re: Fish tits Krauthamer Fish tits Krauthamer 02/15/10 08:55PM
  Re: porting semi/confusion..Re: andy andy 02/15/10 09:06PM
  Re: porting semi/confusion..Re: Kansas John Kansas John 02/15/10 09:44PM
  Re: porting semi/confusion..Re: Kansas John Kansas John 02/15/10 09:48PM
  Re: porting semi/confusion..Re: Kansas John Kansas John 02/15/10 09:50PM
  Re: porting semi/confusion..Re: andy andy 02/15/10 09:53PM
  Re: porting semi/confusion..Re: andy andy 02/15/10 09:57PM
  Re: porting semi/confusion..Re: Nash . Nash . 02/15/10 10:04PM
  Re: porting semi/confusion..Re: - Summerai - Christine L - Summerai - Christine L 02/16/10 12:10AM
  Re: porting semi/confusion..Re: andy andy 02/16/10 01:58AM
  Re: porting semi/confusion..Re: mit mortso mit mortso 02/16/10 03:22AM
  Re: porting semi/confusion..Re: andy andy 02/16/10 10:36AM
  Re: porting semi/confusion..Re: - Summerai - Christine L - Summerai - Christine L 02/16/10 11:31AM
  Re: porting semi/confusion..Re: andy andy 02/16/10 12:36PM
  Re: porting semi/confusion..Re: mit mortso mit mortso 02/16/10 01:21PM
  Re: porting semi/confusion..Re: Weak-Ends Tj Weak-Ends Tj 02/16/10 01:32PM
  Re: porting semi/confusion..Re: mit mortso mit mortso 02/16/10 02:03PM
  Re: porting semi/confusion..Re: mattology - mattology - 02/16/10 04:14PM
  Re: porting semi/confusion..Re: andy andy 02/16/10 04:47PM
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