When is a bigger throttle body necessary?

[tdstuart]

Also not sure if you caught my post earlier. With only swapping from a ported GT350 TB to a non ported 95mm TB...no other changes at all, my MAF flow increased a bit. Back to back testing within 45 minutes. That's with a mostly stock vehicle. I wasn't expecting any flow increase to be honest. Based on my testing results on previous S550s, my car is seeing around 5 more horsepower now. Not a big deal, but very promising for what I have planned.

I'll let you folks continue. I'll be back eventually with some additional information and results as I get them.

Where did you get the 95mm throttle body from?

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[tdstuart]

ZR1 Vette

Interesting. What is required to get it to work with the mustang? Looking for a bigger throttle body for my custom "poor mans cj" boss manifold project.

 

[GregO]

Interesting. What is required to get it to work with the mustang? Looking for a bigger throttle body for my custom "poor mans cj" boss manifold project.

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[Andy13186]

700 rwhp IMO

 

[tdstuart]

700 rwhp IMO

The reason I am looking into it is that Ford engineers have stated that a bigger throttle body was a main reason they started the development of the cobra jet. The new s650 mustangs also use more throttle body.

My car has stage 3 N/A cams and higher compression. I am going to fully port the inside of a boss302 and add a spacer to increase plenum volume aka a "poor mans cj". Then to support the manifold I am looking into bigger throttle bodies.

 

[GregO]

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