Question about throttle body size on 2.4 GMcharger - Boost Forum

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Question about throttle body size on 2.4 GMcharger
Friday, March 03, 2006 6:48 PM
Ok, I spent about 30 min searching for the answer to this, but I gave up, or may have just over looked it during that time. I've heard people running 62mm throttle bodies with the GM Charger. I've also heard that in order to do this you have to have the end ported to match, and the biggest you can go is 58mm. My question is, what size is it? Can I run a 62mm fine or does it need to be 58mm? Any help would be greatly appreciated.




Re: Question about throttle body size on 2.4 GMcharger
Friday, March 03, 2006 8:59 PM
The RSM Throttle Bodies are stock sized physically, the inner diameter is just bigger because they bored out material and fit it with a bigger throttle body plate. There is no other change to the throttle body so it would fit exactly like stock.



www.kronosperformance.com / 732-742-8837

Re: Question about throttle body size on 2.4 GMcha
Friday, March 03, 2006 9:16 PM
on the gm s/c you need to port the end for anything larger than 60 mm tb







Re: Question about throttle body size on 2.4 GMcha
Friday, March 03, 2006 9:40 PM
[quote=97cavie24ls(JDM&00s/c sedans�)]on the gm s/c you need to port the end for anything larger than 60 mm tb

Thanks, exactly what I needed to know



Re: Question about throttle body size on 2.4 GMcha
Friday, March 03, 2006 10:24 PM
yup


no problem







Re: Question about throttle body size on 2.4 GMcha
Saturday, March 04, 2006 10:06 AM
my 62mm couldnt have matched any better when i used the s/c..


-marc

gettin blown jus wasn't good enuff.. snailed @ 6psi
Re: Question about throttle body size on 2.4 GMcha
Saturday, March 04, 2006 10:32 AM
i think alot of the 62mm TB guys are finding the actual size of the bore is 59.8mm or 60.2mm which apparently is a perfect match to the S/C opening. its not a true 62mm.



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