who281

iTrader: (1)

i use a dremel..and

i always use the rough sandpaper bits when i ported my TB and my friends..
then go smoother and smoother then i polish it..

but is there a faster way to do this..like what tool do yall use or wat bits?

black00ssFL

iTrader: (24)

I forget the exact name of the bit. But I used a small metal bit with "teeth" (looks like a rear end gear set) to get the chunck of the metal out. Just be careful not to take out too much. Then I did the normal sanding wheels and polish.

bene

iTrader: (16)

That what I used also. It made the porting ALOT faster.

who281

iTrader: (1)

ok thanks guys ill try and look for it..

but if anyone has a picture or knows the name that would help out alot

0235SS93

iTrader: (1)

carbide bit on an air die grinder!!! then progressively finer sanding drums!

Xtnct00WS6

iTrader: (8)

I also used that bit that had "teeth". To finish it up, I used sanding drums at a high speed and it worked great.

jessedale98

iTrader: (16)

Why not just take handfuls of sand when the car is running and throw it in the TB while pushing back on the throttle? Kind of like a sand blast port? It worked for some kids on the honda forums.

Jeremiah

iTrader: (5)

A carbide bit with some lube to keep the aluminum from plugging up the bit and a 120 grit cartrige roll is what I use. You dont want to polish the surface slick, a fine sanded surface has proven to be better for air flow.

I also remove approx. half the thickness of the shaft on each side of the blade to further improve flow.

Here is a picture of the last one I did, you can barely see the throttle shaft.

jessedale98

iTrader: (16)

hey Jeremiah, im from ardmore oklahoma, any chance I could get you to port my TB?

Black99CamaroSS

iTrader: (3)

Looks like you could of taken alot more off.

who281

iTrader: (1)

i dont understand how a fine sanded surface would be better flowing than a polished surface..

not saying ur wrong i just would like to know how..and why?

Black02SLPSS

iTrader: (5)

Didnt they do that on an Audi TT? Dumbasses lol

BriancWS6

iTrader: (18)

We're not talking about heads here on carbed engines where fuel atomization is critical. In this case, the smoother the better, although there's not going to be a significant difference between a fine sanded surface and really polished when it comes to these throttle bodies.

He could have.

I can explain the instance where it DOES make sense, it's just not in a throttle body application, and it's not really talking about actual flow, but rather results.

On a carbed application, where the fuel isn't sprayed as finely as an injector does, the intake ports of the heads are needed to be a bit more "rough" to help "stir" the air/fuel mixture up to help with atomization for the combustion process. It makes for a more efficient burn of the a/f mixture.

who281

iTrader: (1)

thank you for explaining that...that makes sense..

but i was thinking for airflow..the smoother the better..and i understand it wouldnt be much of a difference at all but it sure looks nice

Jeremiah

iTrader: (5)

Im not the air flow wiz by no means but I have heard from a few people that a fine sanded surface retains a layer of air molecules where a polished surface does not. Air flows better over this layer of air than it does a polished metallic surface. Ither way in my oppinion its a waist of time and wouldnt be make a measurable difference in power.

Yes, I know a little about fuel atomization and puddling, it has nothing to do with the fuel side of things, only air flow/delivery.

Yes, I could have gone hog wild on the throttle body, I spent a total of approx. 30 minutes between two break periods at work on the one pictured.

Would it have made any more power if I spent more time on it.. probably not.
Would it have sold for more money if I spent more time on it.. probably not.