Would someone explain to me the throttle body "cam"?

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Feb 22, 2008 | 01:57 PM

#21

5.0stang

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What is the stock throttle body size from year to year?

Are they the same as the corvette?

I thought someone said that the throttle bodies are 75mm at the opening, but 71.5mm at the back of the throttle body.

Feb 22, 2008 | 02:22 PM

#22

Red99TA

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From: Topeka, KS

I thought they were either 75mm or 78mm (can't remember which). The LS1/6 vettes are the same size as the LS1 F-bods...and all F-bod years are the same size too.

Feb 22, 2008 | 02:55 PM

#23

Pro52R

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From: Jax, FLA

Vettes are Drive By Wire IIRC after 98

Feb 22, 2008 | 03:36 PM

#24

Red99TA

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Quote:

Originally Posted by Pro52R

Vettes are Drive By Wire IIRC after 98

Well I can vouge for the '02 being drive by wire

Feb 22, 2008 | 05:11 PM

#25

5.0stang

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If anyone has a throttle body off the car, try to get a good ACCURATE measurement of the front and back of the throttle body. I am pretty sure it "necks down."

Feb 28, 2008 | 01:05 AM

#26

2000 ta

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From: chambersburg

how hard would it b to change to the older style?

Feb 28, 2008 | 01:07 AM

#27

2000 ta

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From: chambersburg

also where would b a good place for some info on home porting?

Feb 28, 2008 | 08:58 AM

#28

Red99TA

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Quote:

Originally Posted by 2000 ta

also where would b a good place for some info on home porting?

Just do a search on this site. Several guys have posted up step by step instructions on how to port. Really you just need a small sanding drum for your drill and various grit drums to put on there. I port the TB metal down with a coarse sanding drum and then follow up with a fine drum. Next I do 120 - 220 - 400 -600 all by hand to get it really smooth before I polish it with a buffing wheel. The polishing is pretty much just for looks as it doesn't really help airflow. If I didn't do any hand sanding it would only take me maybe an hour to port, TB half-shaft, and bump-stop mod all at once.