??throttle body question??
Thread Starter
Drifting
Joined: Dec 2004
Posts: 1,591
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From: kent ct - "if i'm not in the vette, i damn well better be on the yacht."
St. Jude Donor '13
??throttle body question??
Just don't have the knowledge.. Why port a TB and is the OEM unit NOT ported? What does this do? Polishing I can understand...Sorry if this is too simple. 
Team Owner
Joined: May 2001
Posts: 36,836
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
"Porting" can have the biggest effect, but can also cause the biggest harm if not done properly. In a throttle body, as in cylinder heads, the shape is as important as how much metal gets removed. Just removing metal strictly for the sake of making the hole bigger, can cause more problems than if just left alone.
"Polishing" has the same goal in mind, but it's gains are tiny by comparison to porting. Kind of an "icing on the cake" idea.
Of course all that means little to an otherwise stock engine that is incapable of actually USING all that new found airflow.
HTH
Burning Brakes
Joined: Feb 2005
Posts: 1,190
Likes: 0
From: Fayetteville AR
Most ported TB fill in a recessed portion on the front of the tb to smooth out the air flow. Here is a good comparison below.
http://www.s2performance.net/F-Body.html
This will be one of my next mods too!
http://www.s2performance.net/F-Body.html
This will be one of my next mods too!
Thread Starter
Drifting
Joined: Dec 2004
Posts: 1,591
Likes: 2
From: kent ct - "if i'm not in the vette, i damn well better be on the yacht."
St. Jude Donor '13
Thanks, guys. That cleared it up. 
Never dawned on me that porting was the same as heads or intake manifold... Figured it had to do with the "ports" in the Throttle body or the bell intake. ( carb-head, here.) 
Never dawned on me that porting was the same as heads or intake manifold... Figured it had to do with the "ports" in the Throttle body or the bell intake. ( carb-head, here.)
Burning Brakes
Joined: Feb 2005
Posts: 752
Likes: 1
From: Tulsa OK
Check out Mark Shaner. Here is the link.
http://www.s2performance.net/
He did mine and it was a great job. The problem with porting a TB and why you need to have some one do it that really knows what their doing is that you don't want to remove any material near where the blade contacts the throat. If you do it will ruin it. "Porting" just means cleaning up an opening or orifice to create better air flow - it could be more air, or better velocity, or less turbulance, etc.) Head porting does all those things. Porting a TB is not as big a deal as porting heads but a bad job can be equally disastrous.
Porting you TB can give you some better throttle response, a little more air and with a tune maybe a couple more ponies.
I think it was worth it.
Also, do a search on the forum for Ported Throttle Body or Mark Shaner.
http://www.s2performance.net/
He did mine and it was a great job. The problem with porting a TB and why you need to have some one do it that really knows what their doing is that you don't want to remove any material near where the blade contacts the throat. If you do it will ruin it. "Porting" just means cleaning up an opening or orifice to create better air flow - it could be more air, or better velocity, or less turbulance, etc.) Head porting does all those things. Porting a TB is not as big a deal as porting heads but a bad job can be equally disastrous.
Porting you TB can give you some better throttle response, a little more air and with a tune maybe a couple more ponies.
I think it was worth it.
Also, do a search on the forum for Ported Throttle Body or Mark Shaner.
Drifting
Joined: Feb 2004
Posts: 1,250
Likes: 0
From: Katy TX
St. Jude Donor '08-'09
I have JUST been through this. Read my post concerning the vmax/Mike Norris motorsports cnc ported throttle body.
This one item @ a cost of 140.00 exchange for your original was
the best modification i believe i have ever bought, dollar for dollar in performance difference.
Throttle response was dramatically better. No if's, ands or buts.
I had cleaned, disassembled my original throttle body in an effort to make it a little more responsive, to no change.
This one item @ a cost of 140.00 exchange for your original was
the best modification i believe i have ever bought, dollar for dollar in performance difference.
Throttle response was dramatically better. No if's, ands or buts.
I had cleaned, disassembled my original throttle body in an effort to make it a little more responsive, to no change.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I have JUST been through this. Read my post concerning the vmax/Mike Norris motorsports cnc ported throttle body.
This one item @ a cost of 140.00 exchange for your original was
the best modification i believe i have ever bought, dollar for dollar in performance difference.
Throttle response was dramatically better. No if's, ands or buts.
I had cleaned, disassembled my original throttle body in an effort to make it a little more responsive, to no change.
This one item @ a cost of 140.00 exchange for your original was
the best modification i believe i have ever bought, dollar for dollar in performance difference.
Throttle response was dramatically better. No if's, ands or buts.
I had cleaned, disassembled my original throttle body in an effort to make it a little more responsive, to no change.
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Thread Starter
Drifting
Joined: Dec 2004
Posts: 1,591
Likes: 2
From: kent ct - "if i'm not in the vette, i damn well better be on the yacht."
St. Jude Donor '13
Thanks, again, for the info... I have no doubt I could do a decent job, just lack the experience. Usually gain experience by jumping in, but this looks like a good place to be really cautious. I could certainly use an increase in throttle response, mine sucks.
S**t, I wish I had $$$$$.
S**t, I wish I had $$$$$.