arghx

iTrader: (3)

I got a set of JDM s5 T2 intake manifolds to mate up to my new s5 irons. I would have preferred USDM but they are hard to come by. I am used to the vacuum routing on a USDM s4 manifold so I need a little help--there are 3 vacuum nipples on here I am not sure about, but they're probably for secondary injector air bleeds.



The two facing toward the middle of the picture had a line between them when I got the manifolds, but I suspect that may not be correct. I have no idea what the one on the far right is for. I don't think my s4 T2 manifold even had secondary air bleed nipples, just primary, although it had the subzero assist crap.



On the other side of the manifolds I see the turbo coolant feed flange, a BAC flange, and an ACV flange, just like the my s4 manifold. That hole I circled on the bottom--it is unthreaded. Do I have to do anything with that? I would think it would cause a big vacuum leak. The hole to the upper left is for the brake booster, correct? Does anybody know what kind of thread that is?

Thanks, I know there are a few guys on here with the s5 JDM T2 manifolds.

arghx

iTrader: (3)

clearly something went wrong and the picture didn't post.

HAILERS

The first picture is for airbleeds.

The picuture that says UNTHREADED, is for a bolt to go thru to hold the lower intake on the engnine. There should be a threaded hole in the intermediate housing for it.........

I'm pretty sure that is for the brake booster but it's supposed to have a union/fitting on it for the brake booster feed hose. That's a GUESS because I don't own a series five anything. But the airbleeds is a sure thing.

I'm thinking that the *airbleed* on the far right of your picuture isn't a airbleed.

HAILERS

oops. Reas NZCONVERTIBLE on this thread: https://www.rx7club.com/showthread.p...STER+FEED+LINE

arghx

iTrader: (3)

I'm just going to do some custom plumbing for the brake booster then because I don't have that factory molded piece. And I will cap off the far right nipple in the first pic. I am running no emissions or BAC but I have an unmodded TB. I also have an oil-cooled turbo and i already have a blockoff plate for the coolant feed.

HAILERS

I'd wait til one of the Whizz Kids that has a series five pops in and explains what each nipple does in life.

Do you not have a threaded hole in your intermediate housing for that ***unthreaded** hole you mentioned?

JustJeff

iTrader: (13)

I've got a S5 JDM 13B. I'm relatively new to all this but will help if I can. Tomorrow I'm going to start replacing my first water pump and have my housing tapped for a water temp sensor. I'd be willing to take my UIM off and get some pics of how my vacuum lines are setup.

I've never taken my LIM off but what Hailers was saying about the "unthreaded" hole sounds like it would be accurate. I have a similar hole on my UIM leading to my intermediate housing.

arghx

iTrader: (3)

I'll check on that stuff. I have bigger problems now though. I just realized my the s5 rear iron I received has a chip in the inner coolant seal area, and it's already been ported.

Smoken'

iTrader: (1)

Hey ray, you are right about the brake booster location. The unthreaded hole is just an intake bolt. The two hoses that are broken connected to each other. Then a hose came up from the back side and went to the upper intake manifold.

2slow4stock

iTrader: (18)

I have s5 jdm intake manifold, 1st picture: All those are secondary air bleeder, you run a vacuum line from left to right and from the right to the back nipple of the intake manifold (by throttlebody).
2: Yes, that is brake booster hole.
3:That goes to the block to hold the middle bolt down, or else you'll have big vacuum leak.

arghx

iTrader: (3)

hey, I just wanted to say that a 1/8 NPT went right into that brake booster hole. so I am using a 1/8 NPT --> 3/8 barb 90 degree barb and some 3/8 heater hose to make it work.