Throttle Body size?

[Razr]

Ok so im thinking about putting in a new throttle body but im not sure what size i should go with, anyone know the biggest i should put on is?

 

[Razr]

is there any harm going with a 68mm or even 70 for a N/A setup?

 

[Samurai_Blue]

what mods do you have?

 

[Razr]

Sri, intake mani, fule rail, headers, full cat back exhaust 4" system

 

[Razr]

and underdrive pulley kit

 

[Samurai_Blue]

why do you have a 4" system? You are probably losing power, and with a throttle body you have nothing in your motor honestly to need more air.

 

[Razr]

sorry 3" not 4, but is there a reason not to? somewhere down the road i'll prolly want to go turbo but just not right now.

 

[NemesisCBR]

Yes, at the worst you lose some power.. at the best you gain nothing at all. A tb is a very simple and inexpensive mod that you dont need to bother with until you are close to or at turbo application, or any other mod that calls for a tb.

 

[Samurai_Blue]

ie cams and stuff

 

[NemesisCBR]

Just when you thought it was safe to increase air flow......

 

[Razr]

damn... kk so i bore it and get cam shafts and gears? then im good lol

 

[NemesisCBR]

Boring out your stock tb is an option as opposed to buying. To be more basic, you increase air flow when your engine has a need for more. Cams would be a good reason. When you increase one part of the system you want to adequately increase the rest. Its about matching up, not mix n match. Intake and exhaust flow is the basis for all your potential power.