Is there any benefit and power to be gained from going to a larger throttle body? Looking for a reliable mod, just wondering if this might be a safe way to go.

 

short and simple. no.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rguy &raquo;</TD></TR><TR><TD CLASS="quote">short and simple. no. </TD></TR></TABLE>

what he said. TB should be one of the last things changed, and the stock one is probably sufficient enough for moderately built motors.

 

if you have a nice set up or some build up on the motor . it helps maintain peak hp (a nice top end )

 

Thanks for the advice.

I'm stock, except for I/H/E and flywheel. Think I'll leave things as they are for now. I want more power but want reliability more.

 

My friend just got a JDM ITR Block swapped to his SiRII head and he still retains the SiRII throttle body. Would he see gains upgrading to an ITR throttlebody or a Spoon 70mm throttle body?

 

anyone experience a whistle coming from their ITR throttlebody?

I recently installed one on my GSR and it whistles. I removed the Intake thinking this was the culprit, but to no avail.

anythoughts?

YV

 

I believe the whistle is more dramatic since you have the S2 IM. It is not the t/b, unless you do not have it mated properly to the IM. If you listen closely enough, you can hear the whistle with the stock IM and CAI. I heard to get rid of the whistling you need to port the t/b to 64mm so it matches the S2 or R IM.