Bits for Porting
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Bits for Porting
I'm looking around for some budget carbide bits. I'm not going to waste my time with normal grinding bits, but at the same time I don't want to spend 20-30 bucks PER bit. I found a few options that I wanted some opinions on.
http://www.harborfreight.com/cpi/cta...temnumber=3745
http://www.wttool.com/category-exec/category_id/13978
http://cgi.ebay.com/20-U-S-Carbide-B...QQcmdZViewItem
http://cgi.ebay.com/10-pieces-Tungst...QQcmdZViewItem
(in hong kong, ick)
http://cgi.ebay.com/8pc-1-4-CARBIDE-...QQcmdZViewItem
http://cgi.ebay.com/8-PCS-DOUBLE-CUT...QQcmdZViewItem
Has anybody used any of these? are they good quality? will they last me an engine or two worth? Should I get two of each?
Let me know, I need to get some of these soon. My irons/housings aren't going to port themselves. heh.
http://www.harborfreight.com/cpi/cta...temnumber=3745
http://www.wttool.com/category-exec/category_id/13978
http://cgi.ebay.com/20-U-S-Carbide-B...QQcmdZViewItem
http://cgi.ebay.com/10-pieces-Tungst...QQcmdZViewItem
(in hong kong, ick)
http://cgi.ebay.com/8pc-1-4-CARBIDE-...QQcmdZViewItem
http://cgi.ebay.com/8-PCS-DOUBLE-CUT...QQcmdZViewItem
Has anybody used any of these? are they good quality? will they last me an engine or two worth? Should I get two of each?
Let me know, I need to get some of these soon. My irons/housings aren't going to port themselves. heh.
#2
Engine, Not Motor
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Personally I've never had any luck with carbide bits. In my experience they dull really quickly unless you spend some serious money for good ones.
For big things like exhaust ports, hardware store grinding stones work well.
Intake ports require smaller stones. Check out the kits available from Standard Abrasives. I use a "cylinder head" porting kit that came with a bunch of different stones, paper rolls and various mandrels.
For big things like exhaust ports, hardware store grinding stones work well.
Intake ports require smaller stones. Check out the kits available from Standard Abrasives. I use a "cylinder head" porting kit that came with a bunch of different stones, paper rolls and various mandrels.
#4
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My guess is: http://www.sa-motorsports.com/cat/p5.aspx or a smaller kit: http://www.sa-motorsports.com/cat/p6.aspx
P.S. It is quite odd for Aaron to not post a link isn't it?
P.S. It is quite odd for Aaron to not post a link isn't it?
#6
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Originally Posted by papiogxl
P.S. It is quite odd for Aaron to not post a link isn't it?
#7
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Those SA kits don't seem like they would hold up. I can't imagine them holding up better than a carbide bit. but then again, for the cost.. Do you think the large kit would be enough to port two motors?
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#8
Engine, Not Motor
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No link because it could just be Googled.
I've been using my Standard Abrasives kit for 6 years now and it's held up fine. The smaller bits are a delicate but you'll have that problem with any kind of tool.
I've been using my Standard Abrasives kit for 6 years now and it's held up fine. The smaller bits are a delicate but you'll have that problem with any kind of tool.
#9
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http://www.mcmaster.com/ look under Carbide burrs.
The rotary file cost b/t nine and ten bucks from Harbour Freight and I bought one. I used it for a day and it surprised me so much I went back and bough another before the price went up. They work very well, just remember to OIL them as you use them.
Rotary files from McMaster Carr for a couple of bucks more.
Carbide rotary files hold up very well. I don't understang the part about them not being durable. Oh well.
The rotary file cost b/t nine and ten bucks from Harbour Freight and I bought one. I used it for a day and it surprised me so much I went back and bough another before the price went up. They work very well, just remember to OIL them as you use them.
Rotary files from McMaster Carr for a couple of bucks more.
Carbide rotary files hold up very well. I don't understang the part about them not being durable. Oh well.
Last edited by HAILERS; 02-02-07 at 11:58 AM.
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