well my motor is a s4 TII jspec engine...ive seen people talk about having 3 and 4 nipples on the back of the uim...but mine has 2??? maybe im jst missing something but i think the whole engine is a s4 TII motor....maybe just a weird manifold??

 

This thread is useless without pics.

 

dnt really see y i need pics sure most people hear have seen the firewall side of a s4 TII uim...jst saying mine has two vac nipples on the back instead of three or four...i have the top one going to the primary injector air bleed and the second one going to the omp vac spider....thats the only two i have...

 

Not trying to be a smart *** but by looking at your sig you should be able to pop the hood on your 88 or 87 TII and have your answer..........

 

the uim im talking about is on my 87 TII and my 88 has no engine but the manifold that was on it was a usdm one and had 4 vac nipples on it... im trying to make the point in my thread that ive never heard anyone say nething about a s4 TII UIM that has ONLY 2 vac nipples on the firewall side of it.

 

a jspec has the nipple for the brakes on what would be the passenger side of the car, if there is a 4th one I cant think of it right now but I can check my car later.

I did fill alot of unused stuff in on my manifold and powdercoated over it all so mine may not be there anymore.

 

pics?

 

who, me or him?

 

The brake booster nipple is on the LIM, next to the ACV. I thought your car had an S5 engine anyway? S5s will have a nipple for the secondary injector bleeds too.

My S4 J-spec UIM has only 2 nipples like the OP has noticed on his. And the routing is correct, one nipple is for the primary air bleeds, and the other is for the oil injectors. There's no 3rd one like on a US S4 TII engine, since the double throttle doesn't use a vac line. It just has a little delay diaphram instead (which is much cooler & takes up less space ).

 

Its likely just an S4 JDM one. As stated, the brake booster pickup on the japanese car comes off the LIM, not the UIM (near the other nipples) like a north american version.

If you're trying to distinguish S4 vs S5 just look at the runners where they peak out and curve down into the LIM. The S4 will be totally straight across the peak, where as the S5 will be higher at the rear then the front.

 

I guess I never really paid attention which manifold the brake booster line was on, sorry about that.

My motor is a bastard child, it started out as a S5 motor, but morphed into a S5/S4/S6 combo.
S5 plates and housings, IUM, LIM, S6 rotors and rotating assembly, S4 throttle body and front cover/OMP. FD alternator/Ac compressor, and cosmo pulleys.

Even I have a hard time keeping track, lol

 

Yeah, that's a little more of a bastard than mine. I've got JDM S4 turbo parts mixed with US S4 TII parts, which are mixed with S4 NA parts, and a healthy sprinkle of S5 US/JDM turbo parts. It's all from FCs at least; except my fuel pump.