throttle body ?

[03REDFIRE]

lets assume that i know nothing at all and that assumption would be correct so while we are assuming all these things lets go a bit further and say i have a 2003 4.6 and i just bought the new trick flow plenum for it if i was to buy a new BBK throttle body should it be the 70MM or 75MM and why whats the difference other then obvious size heh

 

[2002BLGT]

If you are staying all motor go with the 70 if you are going to add a power adder , go with the 75 , 70 will give you more low end torque probably with all motor .

 

[Daves4.6GT]

nothing, just size......

Dave

 

[twogts4us]

If you are staying all motor go with the 70 if you are going to add a power adder , go with the 75 , 70 will give you more low end torque probably with all motor .

True, true, true...sometimes too big is a bad thing. Stay with the 70mm, unless you plan to S/C.