Need some advice on TB 4g63

[tfaulk21]

Stock measurements for the 4g63 TB are 60mm, can I put a 70mm or even an 80mm TB on my4g63n/t and what other things would I have to do.

 

[everydaydriven]

I would measure the inside of the intake manifold see what size it is! Might have to port it out.

 

[evileagleawd]

The larger your throttle body is the larger the bolt pattern is! So if you do get a 70mm its probably wont bolt up! But if you want to go custom and make a adapter plate im sure you can make it work! Not sure what kind of HP gains you will see!

 

[BWeston]

You would probably need an aftermarket intake mani, It seems like that would be overkill for a N/T though.

 

[black91awdturbo]

Here is some advice not what you will want to hear probably though. The stock TB is fine people have laid down 500hp on them ran 10's etc etc. If it makes you feel better get it bored and rebuilt, as the others stated this is over kill for a NA. Remember this is not a V8 bigger is not always better..

 

[evileagleawd]

Go with a ITB set up! Throwing down some coin but would be sweet!

 

[tfaulk21]

True it is a little much. Just wondering if anybody had tried it that's all. I've never heard of anybody doing it with the n/a but I hardly known of anybody to change it even with a turbo. Shit I need a gsx haha

 

[darkblues24]

I have a gsx if u interested.. lmk

 

[my98gsx]

www.Throttlebodys.com ported mine and it came out amazing. As far as i know they are the only ones who modify the non-turbo tbody due to the shaft seals being different. I actually have a modified non-turbo tbody on my GSX, and i couldnt be happier with it. For a n/a vehicle thats all your going to need, plus you wont have to do big modifications to your intake manifold. check it out.