i want to bore out my throttle body but i want to know if anyone has done it? any cons? pros?

 

i don't know of anyone who did it before, but you should try. i have only heard good things about it

 

im scared of throwing codes..any thoughts?

 

what do you have a 400? or 300? 430? be a pioneer man!

 

i have a 300. i wanna bore the throttle body and of course i would have to get the intake manifold port matched. i dont wanna have idling issue or throw any codes. i just wanna make sure that im in clear before i jump.

 

generally id say thats a pretty good idea to check before you jump.....but for some reason lately ive been just jumping. but i dont think anyone has done this before, andif they did they havent posted it. ...just jump away! well im headed to the shop this weekend ill ask and see what they have to input.

 

thanks, please do check to see if anyone has done it or anything. i dont think that there would be a disadvantage but it can be a costly mess up too. ive tried searching the internet but it has yield result. who knows, maybe ill organizing a groupbuy for a bored out throttle body..

 

I doubt this will result in any significant gains unless you do the full exhaust, intake, header, ECU re-mapping, etc..

Lexus/Totota does a pretty good job of optimizing the throttle bodies sizes on their cars. Guys on the MR2 boards have messed with the T/B and the result is usually a slower and poorer running car. Now, if you're running forced induction, this is a worthwhile mod if you are running tons of boost. This was a popular mod on Hondas a few years ago, but tuners have backed away from doing this on N/A cars.

On a naturally aspirtated car, I would look elsewhere for power gains.

Run some before and after dyno runs- that's the only way you'll know for sure.
The old "gosh, it feels quicker" proves nothing!

 

It's not worth the labor and money for N/A vehicle. FI is a different story. Usually it will give you better respone but the gain is about 1-3 hp. don't forget if you bore the throttle out, you will have to modify the throttle plate. Again it could run $400-500. Save your money for a Turbo.
JPI