Motorcycle Racing Forum

Racing Discussion => Rules and Regs => Topic started by: grim_racer on February 03, 2003, 06:16:56 PM

Title: To Mill Or Not to Mill?
Post by: grim_racer on February 03, 2003, 06:16:56 PM
Is milling of the head allowed in supersport? I am not the smartest person in the world, so I can't really figure out what the rule book says is ok. Sorry again for yet one more newbie question???
Title: Re: To Mill Or Not to Mill?
Post by: mdr14 on February 04, 2003, 04:27:35 PM
If it is not legal, a large portion of the grid would have to be disqualified
Title: Re: To Mill Or Not to Mill?
Post by: mdr14 on February 04, 2003, 04:29:29 PM
ANd actually you don't want to mill. What you want to do is grind your cylinder head. It produces a better finish, & provides a superior sealing surface.
Title: Re: To Mill Or Not to Mill?
Post by: grim_racer on February 04, 2003, 06:35:03 PM
Just wondering. I am still trying to figure this all out before I jump into it.  Thanks
Title: Re: To Mill Or Not to Mill?
Post by: Super Dave on February 18, 2003, 01:55:18 AM
And you'll HAVE to reset the cam timing because the distance between the cams and the crank will change if you do any cutting of the cylinder deck, cases, or head.
Title: Re: To Mill Or Not to Mill?
Post by: chris_chops on February 18, 2003, 03:12:24 PM
QuoteANd actually you don't want to mill. What you want to do is grind your cylinder head. It produces a better finish, & provides a superior sealing surface.
Matt,
What are you using to grind the head with, the image in my head is grim.  I picture someone with a grinder.  I'm not be sarcastic, I'm actually curious.

Matt
Title: Re: To Mill Or Not to Mill?
Post by: mdr14 on February 18, 2003, 07:41:43 PM
I of course don't do the heads in shop. Although i have a local proffesional that I subcontract with to do that type of precision machining.

I do know that there are several different types of machine that are used for grinding. The particular one that is used for my work, I do not know. I was just happy at the quality surface finish that was produced.

Here is a link to my website with some pictures of a finished surface.

http://www.mdracingstp.com/performance.htm

its about half way down the page
Title: Re: To Mill Or Not to Mill?
Post by: chris_chops on February 19, 2003, 10:34:24 AM
Thanks MDR