is it worth boring out the stock svt throttle body? I did it on the ztech and it seemed to help. I just didnt know if the svt stock throttle body could be ported out anymore.Thanks,Jeremy. Didnt mean to steal the thread.I didnt want to start a new one first this topic.
its all in what you like. got mine before they had the 67 so i had to settle for the 65. the throttle respose i very diff and the port for the idle air control is smaller on the 65 then on the factory. the aftermarket doesnt have that slow tip in like the factory due to it haveing a flat butterfly instead of the ski jump looking butterfly in the factory one. if it was me id keep it.
i was just sitn here readn this i decided to take the stock tb off and port it cause i had nothing better to do haha took me like an hour to get it all nice, but i did notis better low end pick up, little better throttle responce im still gonna buy the cfm though when i get the cash
The idea of trying to bore and screwing up and having nothing or one with a crack is not very comforting. If you have the cash, might as well support your third party suppliers. It keeps them in business and making parts for us.
Ok. I finally got the TB on and it is a different feel. I don't think it is worth $250 but it does improve greatly with the throttle response. I almost had to really learn how to "re-drive" the car. I appreciate all the responses.
yeah its only ever really worth it if.... you have high rpm NA talking 7k plus... or have a roots blower. The increased throttle response comes mostly from the revised butterfly in it. Sanding off the wedge gives the exact same feel.
Yeah I think I'm just gonna try and bore mine and install a newer thinner aluminum butterfly plate in there. The stock one seems to be too thick and I think the thinner aluminum plate might more air in and I won't have to bore it at all