does anyone know of any that has good info.. including vacuum lines? and MAP sensor?
i plan on using a chopped up d15 mani and gsxr tbs im gonna use the stock d15 injector locations runners and silicone couplers... but im confused on the vacuum lines and the map sensor ive searched for a few days and cant find any with info on these..

 

Hear is good link it for b18/orb16 intake mani tho but probly will be the same for you d15 mani
http://www.homemadeturbo.com/tech_pr...itb/index.html

 

i read that one.. no mention of vacuum lines.. and im unclear of the tps sensor... maybe ill see when i have the tbs in hand

 

It does mention the vac lines.. he connected them all with vacume t's. To one line going to the map sensor pretty straight fwd and same goes with the tps.

 

I did some research and the Honda CBR ITBs are a more direct deal, I remember issues with the GSXR and some others. The TPS on the CBRs will work, otherwise you have to adapt them on others. For vacuum, you just run a line from a nipple on each runner. MAP is the same.
Have fun tuning.

 

i imagine you would need to tap vacuum off each runner to ensure sufficiently vac supply, and connect your map sensor to this common vacuum source.

tps sensors are dead simple, as long as its a 5v reference voltage, signal and ground you should be fine provided you are getting .5ish volts throttle closed and 4.5ish WOT

 

bump this thread up! i'm curious where the brake booster vacuum lines go to on these diy itb? the brake booster vacuum tube is huge tho. that link doesn't tell us.. anyone can help us please???

 

option 1) run booster off of one cylinder. I have seen many professional setups like this, and although non-intuitive, it seems to cause no problems.

option 2) run all vacuum to a canister and branch off of that. If you dont trust option 1 (like me)

option 3) get rid of the power brakes.

option 4) buy some type of electric vacuum pump to evacuate your crankcase for ring seal and attach it to booster

option 5) get creative

 

Generically, this seems to be the option of choice (certainly the way I do my set-ups). Easy enough to do and, with a box, it leaves you options to make more vac ports.

MB

 

http://htarchive.org/showthread.php?t=1191757&page=7

theryagow

 

http://www.rossmachineracing.com/intakepartspage.html

 

you wana go cheap? go with obx. find em used for dirt cheap