Hey guys,

I recently got a dremel and thought it would be useful to polish up, port out (if possible) intake/exhaust plumbing. Anyone attempted this with a dremel? If so, and guidance that can be given?

Cheers,

Yv

 

I use a dremel for just about everything (porting manifolds, gaskets, cutting aluminum piping, drilling in tight spots). I'd use the air tank and compressor for porting manifolds, but it doesn't hold htat much air and it's a lot noisier than the dremel. It depends on how much material I have to remove. If there's a lot, then I start with the die grinder and carbide burrs.

 

man before I fried the motor in mine, I used that thing for everything.

Now I have to port **** by hand. **** that. Everyone that works on cars should have one. It's almost as important like the HELMs. lol

 

Keep in mind intake ports are supposed to be rough.

I personally wouldn't port/polish anything I couldn't easily test (to see if it helped or not) or replace.

Opening up the exhaust manifold a mm or two, can be benificial in preventing exhaust reversion.

 

thanks guys......anyone else with tips?


YV

 

Intake ports are usually supposed to be rough on carbed cars, assisting with the mixing of fuel and air. I've heard it's slightly beneficial to smooth the inside of fuel injected intake manifolds.

 

Its the same reason on fuel injected cars as well. Very smooth intake ports on the head will cause the fuel to pool.

Of cource you can go too rough as well, which is why I would leave it to professionals.

 

That's why I'm going to make the runners on my intake manifold as smooth as possible. The head has already been done by a proffesional. The exhaust ports are real smooth, but the intake side has a little more texture to it.

 

I p&p'd my head with a dremel. took a long time but it made a noticeable difference. just be careful and not remove too much and cut into the coolant galilees...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wodstlk &raquo;</TD></TR><TR><TD CLASS="quote">I p&p'd my head with a dremel. took a long time but it made a noticeable difference. just be careful and not remove too much and cut into the coolant galilees...</TD></TR></TABLE>

gawd... i'll never trust myself to port my head.. But i have already used my dremel on the intake manifold. I went alittle crazy with it, but eh.. its just a manifold..

 

what bit do you guys use to smooth out the aluminum? I have tried a couple but they only last a minute or so, I must have the wrong bit.

any suggestions.

YV

 

I've heard that while using a bit for final smoothing, it helps to use a lubricant such as WD-40. Supposed to prevent material from caking up in the bit and make it last longer.

 

hey guys,


check out the 511 abrasive brush if your looking for a nice aluminum polishing bit. it works great!

YV