OK so im building my R but im really new to the whole thing so i need a little help. I have a stock block/tranny but a built head. The head has a lot of the skunk 2 jazz, such as cams/camshafts, retainers, dual valve springs, its been milled, stock intake/exhaust manifold, aem fuel rail/regulator, RC 370 CC Injectors. Also i got a Walbro Fuel Pump, Hondata s100 ECU, and a few other things. I was planning to do a N/A Build since my camshafts are stage 2 for NA.

So my question is how big should i go on the Throttle Body. I dont want to get a very big one and bog down the engine, but i also dont want to get too small of a TB and loose power. Like i said ive only been working with engines for about 6 months and am completely new to everything. I haven't even got the motor in my car yet, lol.

Any input will help, and i plan to use this forum up until i get the motor completely put together and ready to be dropped in my car. Also if theres any other information you need ill be glad to post back.

Thanks again

 

stock, your welcome

 

I wouldn't go larger than a 68mm on that setup, but you're being restricted a lot by your intake and exhaust. Get a good intake and a 2.5" exhaust with a nice hytech or smsp header