D-jetro Map Sensor Nipple Placement

[ahh 33 s2]

to steal a stolen thread,

can any one point me in the right direction for doing this for the vipec, i dont have the ecu yet, and probaly wont until engine is built, but would like to get this sorted before it goes together,

thanks

[snozzle]

well since u have a single throttle body setup, a nipple almost anywhere on the plenum or even a T off an existing vac line on the plenum will be fine.

[ahh 33 s2]

probably should have mentioned for RB26

[snozzle]

oh right - well since its only 1 vac signal you require (unlike the dejetro which needs two) i think you can get away with it being off the balance tube

or you can do what i have done - put a nipple into runnings 3 and 4 and then T them together and run that to ur vipec

[Adriano]

IMO tthe balance tube is inly really satisfactory if the PCV is blocked, or you are running 4d TPS/MAP mapping, as the operation of the pcv effects the vacuum

[Blue32]

Have had BOTH setups on my 400+ rwkw GTR and noticed no difference to the running of the engine. Initially set it up with the PCV vacuum port (PCV removed) and a tee to run to each of the MAP sensors. Then once I removed the inlet manifold to run a phenolic gasket I drilled and tapped the fittings in as per the Apexi instructions. Wasn't difficult to do, but I have not noticed a difference in the running of the engine (I datalog everything in the car using Datalogit at the track) so I don't really understand why you wouldn't just install via the far easier T-piece method?

[Adriano]

As you said, you have the PCV removed, so it doesnt really compare to a stock setup