factory boost solenoid - bnr32

[djhatton]

hey peeps.

i've just recently picked-up a 32gtr and i'm loving it.. but gotta sort out a few niggling problems.

the factory boost solenoid has no vacuum lines going to and from it. the car feels a little sluggish, so i'm expecting low boostage as one of the causes.

can someone tell me what the stock wastegate springs in a 32 open up at? i'm fitting a boost guage to help me out here, but want to get to the route of the problem.

anyone see these solenoids "unplugged" in other fresh imported jobs? can i assume then, that the previous japanese owner had some sort of elec or pneumatic tap in there and removed it before movinng the car along?

cheers

david

[Godzilla32]

I have a 32 GTR too. The wastegate actuators work off the vacuum pressure thats controlled by the solinoid opening and closing. The gates are normally open (no boost). Until the vacuum pressure builds up enough to close the gates and start building boost. Then once the pressure has reached the preset amount the ecu tells the solinoid to close. By closing the solinoid, and removing vaccum pressure, the wastegates open to control the speed of the turbine wheels (bypassing them), thus limiting compressor wheel speeds and boost level.

Unless the solinoid has just been bypassed im suprised you are getting any boost at all. Because as i said the gates are normally open until there is enough vacuum pressure to shut them. very odd. I could be wrong about all this but thats my theory.

Hope it helps.

[djhatton]

hmm... anyone confirm if this is right? i'm definately making SOME boost... my guess is around 4-5psi. i'll confirm that when i get the factory/aftermarket boost guage doing its thing. but both lines to the solenoid have just been plugged and the wire/header for the solenoid disconnected. smells a bit like fish to me, but then again, the japanese are a funny lot!

d