Smoothing out manifold?
Burning Brakes
Joined: Jun 2004
Posts: 752
Likes: 0
From: richardson tx
Originally Posted by stubbs
Summit sells a little porting kit that has all different bits in a wide array of shapes and sizes. I think its like 12 dollars, good buy.
Safety Car
Joined: Oct 2002
Posts: 3,991
Likes: 0
From: Phoenix AZ
Originally Posted by steve1ph2
cheaper than the dremel
http://store.summitracing.com/defaul....asp&x=48&y=11
second from the bottom
Burning Brakes
Joined: Jun 2004
Posts: 752
Likes: 0
From: richardson tx
Originally Posted by stubbs
You still need the Dremmel, these are just bits for the Dremmel. And its 19.50 not 12 dollars I found out, heres a link
http://store.summitracing.com/defaul....asp&x=48&y=11
second from the bottom
http://store.summitracing.com/defaul....asp&x=48&y=11
second from the bottom
Safety Car
Joined: Oct 2002
Posts: 3,991
Likes: 0
From: Phoenix AZ
Wait till you try a Plasma Cutter, oh baby. We also used to have a giant Band Saw, we used it to cut the front off of a 3rd gen Trans Am to pull the motor one time. It took about 10-12 seconds, it was awesome! I love tools of destruction!
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Burning Brakes
Joined: Jun 2004
Posts: 752
Likes: 0
From: richardson tx
Originally Posted by stubbs
Wait till you try a Plasma Cutter, oh baby. We also used to have a giant Band Saw, we used it to cut the front off of a 3rd gen Trans Am to pull the motor one time. It took about 10-12 seconds, it was awesome! I love tools of destruction!
Race Director
Joined: Jun 2004
Posts: 13,957
Likes: 706
From: WI
I am doing clean up on a manifold now. I got for about $4 a drum sanding wheel for my drill and the sand paper rolls. It's working very well. I am using an extension for the drill to get farther into the manifold. That's the only thing that sucks. Putting the drum bit into the extension results in slop. I have been wrapping some teflon tape around the bit so it doesn't fall out. It needs to get replaced about as often as the sand paper though so it's not so bad. Use 80 grit to take down all the casting flash, seam lines, etc. Then polish it up with a finer grit. It was easy to do the manifold and runners, the plenum really needs hogging out though! For that I got a carbide burr and am going to use my neighbors shop with a huge air compressor. A drill will not spin the burr fast enough FYI.
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
Sawsall-my wife heres that around my place-well you get the idea 
anyway, I've done alot of porting in the past-the best
advice I can give you is Dremmel-BUT, don't go cheapo on it, get
a good one. Obviously aluminum is alot easier than the old cast I
used to do-but still get a good one, and some carbide cutting tools
for it.
anyway, I've done alot of porting in the past-the bestadvice I can give you is Dremmel-BUT, don't go cheapo on it, get
a good one. Obviously aluminum is alot easier than the old cast I
used to do-but still get a good one, and some carbide cutting tools
for it.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
w/Lambert, buying a quality tool costs more up front but makes the job much easier, especially on a TPI base. When using an extension, it really wears on the bearings. I use a Mutabo electric that is adjustable from just under 1000 pms to around 10.Dont have access to a proper compressor to use my other die grinder... Carbide bits its on the lowest setting, cartridge rolls and flap wheels around 2000. On thirdgen.org there is plenty of home porting going on, a few guys who are doing some nice work and freely share tips. Hard to come by good info, the guys that know how to do it are usually secretive about it. 
IMO a drill wont get you the result you need.
Last edited by cv67; Feb 25, 2006 at 12:37 PM.