...for head porting with an air grinder?
I don't want to buy overkill, but don't want something inadequate either.
I don't want to buy overkill, but don't want something inadequate either.
What size compressor best...
- Thread starter freakintiger
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I think you need at least a 30 gallon one.
Honestly, you might want to look at just getting an electric die grinder and a stator (I think that's what they're called) so you can control the speed. I did 95% of my head with an air die grinder but it took forever because I had to keep waiting for the compressor to catch up, although I don't actually know how big the one I was using is. I bought one of those cheap 99 cent (plus $15 shipping
) electric die grinders off ebay, and I used it to do my intakes and an exhaust manifold, along with finishing up a couple things on the head. The only real drawback with them is that the collet is not actually 1/4" and some of the long burrs and such will wobble at certain speeds, but really overall it's been great for the money.
Honestly, you might want to look at just getting an electric die grinder and a stator (I think that's what they're called) so you can control the speed. I did 95% of my head with an air die grinder but it took forever because I had to keep waiting for the compressor to catch up, although I don't actually know how big the one I was using is. I bought one of those cheap 99 cent (plus $15 shipping
) electric die grinders off ebay, and I used it to do my intakes and an exhaust manifold, along with finishing up a couple things on the head. The only real drawback with them is that the collet is not actually 1/4" and some of the long burrs and such will wobble at certain speeds, but really overall it's been great for the money.
16vstang
New Member
I have a 50 gal I use for alot of things and with my die grinders ive ported heads with that and so have some of my friends with it. Even have done a few quick spray jobs on some hoods. For compressors bigger is defanatly better. It suck to have to wait for it to build up pressure agian so you can continue your work. Well any ways good luck.
mr_woodster
Active Member
Go with a makita die-grinder, like stated, no way you want to wait for that air compressor to keep up with you. (believe me, i have two 
)
)
evintho
Dirt-Old 20+Year Member
What Wood said!mr_woodster said:Go with a makita die-grinder, like stated, no way you want to wait for that air compressor to keep up with you. (believe me, i have two
Get the speed control here............
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=43060
Buy some carbide bits off of Ebay. Get the long ones with 6" shaft. I believe I got 10 of them for $27.
rd
Founding Member
Check the specs on the grinder. Most of these use a lot of air, because they run so many rpms. I have a 5 hp Craftsman, rated at 6 at 90, I think, and my da sander and cutoff wheel will run it down easily. I can take two four lug wheels off with the impact and it has to build up again.
The Makita die grinder I have works great. I do recommend variable speed.
The Makita die grinder I have works great. I do recommend variable speed.
mr_woodster said:Go with a makita die-grinder, like stated, no way you want to wait for that air compressor to keep up with you. (believe me, i have two
What part# is this? I looked at some on ebay, but they don't really look much bigger than my dremel tool!
evintho
Dirt-Old 20+Year Member
This is the one I've got. Ported serveral heads and exhaust manifolds with it. It's definitely overkill!
http://www.makitatools.com/tools_Item_View.asp?id=338
Check this one out...............
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=55811&item=7521651797&rd=1&ssPageName=WDVW
It's got 30k rpm vs. my 25k and it's got 3.0 amps vs. my 2.0. I'm sure it'll do the job!
http://www.makitatools.com/tools_Item_View.asp?id=338
Check this one out...............
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=55811&item=7521651797&rd=1&ssPageName=WDVW
It's got 30k rpm vs. my 25k and it's got 3.0 amps vs. my 2.0. I'm sure it'll do the job!
A lot of them RESEMBLE dremels, but all you gotta do is check the collet size. As long as they have a 1/4" collet, they'll do the job.
By the way, if I might recommend it- pick up Standard Abrasive's "head porting kit" (I think that's what it's called, summit has it), the one that's about $42. Comes with all the sanding rolls & mandrels you need, plus some grinding stones and these cool things called "cross buffs" that you can use to polish your chambers or ports. I used the stuff in that kit on my heads and intakes and still have extra (though I ran out of the fine sanding rolls). Pick that up and the only other thing you need are a few carbide bits.
By the way, if I might recommend it- pick up Standard Abrasive's "head porting kit" (I think that's what it's called, summit has it), the one that's about $42. Comes with all the sanding rolls & mandrels you need, plus some grinding stones and these cool things called "cross buffs" that you can use to polish your chambers or ports. I used the stuff in that kit on my heads and intakes and still have extra (though I ran out of the fine sanding rolls). Pick that up and the only other thing you need are a few carbide bits.
Thanks evintho and Red, I did'nt want to buy the wrong thing, my dremel can't take a big carbide bit(but I have the little ones, they kill everything they sink their teeth into).
I want to carve on this head I got last year...
I want to carve on this head I got last year...
evintho
Dirt-Old 20+Year Member
Hey Freakin, check this out.........
http://www.turboford.org/ubb/ultimatebb.php?ubb=get_topic;f=6;t=008031
Looks just like mine but it's not a Makita, probably an off brand, but for $20 shipped - why not!
http://www.turboford.org/ubb/ultimatebb.php?ubb=get_topic;f=6;t=008031
Looks just like mine but it's not a Makita, probably an off brand, but for $20 shipped - why not!
evintho said:
I think it's already sold, atleast now, but thanks for lookin' out man, I'm always tryin' to save a buck when I can!
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