Throttle Body & Plenum
09-13-2008, 12:25 AM
#1
1st Gear Member
Thread Starter
Join Date: Jul 2008
Location: ga
Posts: 78
Throttle Body & Plenum
I looking to get a new one and reading on it a little,
i m trying to find the original mm
i wanted to get the 70mm because they say the 75 is for modified gt and not much with stock motor?,how much hp gain,any experience with that?
and which brand ,i was looking at accufab for 425$
thanks
i m trying to find the original mm
i wanted to get the 70mm because they say the 75 is for modified gt and not much with stock motor?,how much hp gain,any experience with that?
and which brand ,i was looking at accufab for 425$
thanks
09-13-2008, 01:10 AM
#3
4th Gear Member
Join Date: May 2008
Location: Santa Monica, CA
Posts: 1,842
Accufab I think has been tested to flow the best but the cost outweighs the slight difference. Several people use the Professional Products and are satisfied with it. You are going to hear a lot of debate on whether to get a 70mm or 75mm and which one is enough for a stock/basic bolt on GT. Honestly I think you are not gonna go wrong with either, but if you have more than a few bolt-on's in mind then you mightaswell go with the 75mm.
09-13-2008, 12:52 PM
#5
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
I looking to get a new one and reading on it a little,
i m trying to find the original mm
i wanted to get the 70mm because they say the 75 is for modified gt and not much with stock motor?,how much hp gain,any experience with that?
and which brand ,i was looking at accufab for 425$
thanks
i m trying to find the original mm
i wanted to get the 70mm because they say the 75 is for modified gt and not much with stock motor?,how much hp gain,any experience with that?
and which brand ,i was looking at accufab for 425$
thanks
Here are Accufab's flow numbers for various brands of TB and plenum;
I got the ProProduct's 70 mm TB (polished) and plenum (satin, then powder coated) for less than $220 delivered on eBay.
That, a decent tune, and a 2-1/2" catted X-pipe and catback got me to 252 rwHP, and 296 ft.lbs. torque...
09-13-2008, 04:02 PM
#7
6th Gear Member
Join Date: Aug 2007
Location: MO/ Born and raised in Louisiana
Posts: 10,696
I bought the MAC 70MM TB and C&L plenum and they seem to work very well together. I Bought products off E-bay and they both came from a reputable supplier.(Brenspeed) Now that I am starting to put alot more money into my car kinda wish I had bought the 75 MM.
09-13-2008, 05:53 PM
#10
2nd Gear Member
Join Date: Jun 2007
Location: St. Louis Mo.
Posts: 235
Ive herd C&L plenums flow the best with an accufab throttle body and accufabs throttle body and plenum flow the 2nd best. But any brand will prolly be fine. I went with a C&L but I bought it off of a neighbor for cheap. Like it a lot just wish it was polished which I might do down the road. Had another buddy of mine just buy an accufab throttle body and plenum and it looks sweet as hell. Very nicely polished. Also I would go with a 75mm since you wont really notice much with just a 70mm only being 5mm bigger then stock. You will kick yourself for not getting the bigger one to last you down the road!!!