stock tb size

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Apr 25, 2006 | 02:53 PM

05sedan

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From: Anniston,Alabama

stock tb size

anyone know the exact measurement on the 2.2 tb size? i took a tape measure to mine earlier and got 69mm on it....is this right?

Apr 25, 2006 | 02:56 PM

RedBaseBolt

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From: Oshawa, ONT

no, thats totally wrong, you measured it from metal to metal. You have to measure from one end of the actuall throttle plate to the other.

I don't know the exact size but I'm thinking 48 ish mm.

Apr 25, 2006 | 03:06 PM

slowion2

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From: Orlando, FL

maybe at the plate if that, I want to say it's 52-55mm though at stock bore.

mine is ported out now to about 68mm. I think your original attempt at measureing was off.

Apr 25, 2006 | 03:11 PM

Cobalt443

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From: Edison, NJ

Well when I still had my 2.2 we compared the TB to that of the 90mm GTO's and the cobalt's was roughly half so I'm going to have to go with 45 - 48 mm stock although I could be wrong

Apr 25, 2006 | 03:17 PM

RedBaseBolt

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From: Oshawa, ONT

I didn't just throw out 48mm at random, I have taken a measuring tape to it, but of course I was just guestimating.

Apr 25, 2006 | 03:36 PM

slowion2

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From: Orlando, FL

my bad Red, I meant 05sedan

I need to check it again with my caliper to be sure what size it is honestly

Apr 26, 2006 | 11:05 PM

05sedan

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From: Anniston,Alabama

well after tonight the tb is nowhere near stock size i ported it out tonight...ill be taking pics tomorrow and let everyone know if there is any throttle response difference