how to build an individual throttle body

[schofell84]

thought some of you guys would like it. it shows some of the finer aspects of itb tuning like the placement of the injector and size vs rpm and such.

http://www.team-integra.net/sections/articles/showArticle.asp?ArticleID=484

[The Nutty Professor]

So you started a build yet?hangloose I read through the article very good info. Don't know how the hell to use it but it's a huge step for someone who wants to try EFI.

[redryderaus]

Good info. Highlights the need to tune the intake as well as the exhaust. The throttle body length would be proportional to cylinder volume, so their base length of 350mm would be too long for our small engines. There will be formulas out there to calculate the sizing.

Cheers,

red

[schofell84]

yeah, from what i read if your running up to about 12k we would be using 30mm intakes. tune it to the second (maybe third if space allows) intake resonance, get a 30mm carb welded in there and situated and place your injector. efi bottom end with crazy flow and resonance tuning on the top. scary stuff.