Throttle Body upgrade

OLLETT · Post by **OLLETT** » Sun May 17, 2009 3:04 am

I was wondering if anyone has had any issues with moving up to a 70mm throttle body. I'm asking this based on staying with the 24 lb. injectors. I've read that the TB size and inj. poundage were efficiently matched.

red95gts · Post by **red95gts** » Sun May 17, 2009 1:44 pm

It's the Mass-air meter that's matched to the injectors. The TB can be swapped out for a 70mm, but depending on other mods, you may not see much of a power increase.

OLLETT · Post by **OLLETT** » Sun May 17, 2009 11:25 pm

So you think with just basic bolt-on mods I might as well just stick with the 65 huh?

93Cobra1928 · Post by **93Cobra1928** » Mon May 18, 2009 4:18 pm

It will be fine, Im running an X-303 cam, Windsor Sr heads, and the stock tb is doing fine, although an upgrade for me would help. With basic bolt ons the stock induction is good enough.

ceetwarrior · Post by **ceetwarrior** » Tue May 19, 2009 6:17 pm

Even with my supercharged , it ran fine with the 65mm.

I then switched to a 70mm and didn't notice a difference. It was when I switched to a 75mm (and a few other tweaks) I noticed a difference.