what do you use to port? Dremel? Brand? What attachments?

I have an OEM o2 housing that I wanted to port myself, just to see how good I do. For s's & g's.

 

dremel wont cut it. You need a compressor and a die grinder with carbide bits.

 

^^ EXACTLY what he said

and those bits arent cheap...

 

Pnumatic Rotory File and an assortment of carbides and sanding abrasives.

 

they aren't that bad. There is a vendor on ebay that sells nice stuff cheap. It will pay for itself if you do a couple of parts.

 

I use a large electric die (with 1/4 collet ) and Standard Abrasives port and polish kit. You can get the die grinder from Harbor Freight about $30, port and polish kit is about the same. But this will give great results.

 

Thanks for the good info man.

 

I bought one of these from Eastwood:

http://www.eastwood.com/hanging-moto...-4-collet.html

It it expensive? Yes

It has become probably the most used tool in my garage now by far. I use it for everything since I picked it up. Absolutley a nice pice, very versatile.

Highly recommended, and I am also thinking of picking up the hanging stand for it that allows you to set it at one variable speed. Right now I use only the foot control.

Absolutley a killer tool to have in the garage.

I also use a "Standard Abrasives Kit"... Only mine came in MUCH cheaper because I bought a kit from McMaster Carr that is the same exact thing as the Standard Abrasives kit, just much much cheaper because its not tagged "For Automotives"...

 

Yeah A dremel is pretty much worthless.

 

Thank you for the link and the information. It is much appreciated.

 

http://www.allproducts.com/manufactu.../product3.html

I used this type of Flexible Shaft Die Grinder ( see above link ) for 5 years when I was racing three cylinder "Pro-Stock 1200cc" two stroke Motors in jet ski racing. Relatively quiet and very easy to control the cutting burr tool RPMs. Also can get any type of cutting burrs you need to get way down inside long ports. There are straight and 90 degree cutting burr holders, so you can get any where you need to do some porting. Spent thousands of hours porting with these tools, because the ports on a two stroke are the intake and exhaust manifolds and Cams for the motor. Use a lubricant like WD-40 to keep the burr tool from clogging up when grinding aluminum.

Good Luck and go slow until you get the feel for the process and how the tool cuts.

Bob

 

http://www.ruffstuff.com/

get a double cut oval 1/2
http://www.ruffstuff.com/pages/fastcut.html

and then get straight cut rolls...anything else you will absolutely hate your life! Do a 60 and 120..also in the 1/2 inch dia. 1 1/2 length..and don't forget a mandrel for them! We get the 6inch and cut them to different lengths for different jobs.

http://www.ruffstuff.com/pages/cartrolls.html

As far as a grinder, I prefer something air and front exhaust, it makes stuff easier to work on, and I don't like getting air in my face. Most grinders you find will be rear exhaust, but they are out there. Ours are Cleco's and run about $650...but you can find light weight, front exhaust for under $100

good luck!