G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile

Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Intake: Intake Tract, Airbox, Filter, Manifold, Gaskets » How Rough is Too Rough, How Smooth is Too Smooth? « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Ilikeike
Posted on Saturday, October 13, 2007 - 11:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I found a little time to hack away at an intake I picked up on eBay. It's Sportster intake just be clear.

I'm surprised more isn't said and done about this part of the intake tract. People spend gobs of money getting their heads ported and I never hear of what they did or didn't do to their intake.

The one I'm working on was really quite lumpy. Well, after an hour with some files, another half hour with a grinder and another 3/4 hour with some sanding roll, it's really quite respectable. Oh, forgot, another 1/4 hour with a felt bob and coarse lapping compound on the grinder.

Now that the lumps have been dealt with, I'm not quite sure were to go with the surface finish. A quick tour through the archives and everyone pretty much agrees that you don't want it too smooth,,,,,or too rough.

So, how smooth is too smooth? How rough is too rough? Exactly what is the procedure to get that perfect finish? Polish it out then throw it in the bead blaster? Walnut shells maybe?

Regards,
Walt
Top of pagePrevious messageNext messageBottom of page Link to this message

Captainkirk
Posted on Sunday, October 14, 2007 - 01:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Without having any expertise to back me up, I would clean it up and maybe do the beadblasting thing. You don't want it TOO smooth. A slightly rough surface aids in atomization (as you probably already know). I would avoid a mirror-polish; anything less would probably be fine.
Top of pagePrevious messageNext messageBottom of page Link to this message

Ilikeike
Posted on Tuesday, October 16, 2007 - 07:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks Cap. Doesn't sound like we're going to get any other opinions. I found a good read here: http://www.motorcycleproject.com/motorcycle/text/c ows-porting.html

According to him, we made a pretty good educated guess.

Walt
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a private posting area. Only registered users and custodians may post messages here.
Password:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration