CarsandWomen

iTrader: (19)

that line you reference in the pic is your EVAP and it forces the motor to burn off the fumes from the gas tank rather than venting them to the atmosphere. bottom line is you need it.

My suggestion is to get your boost numbers from the manifold and go from there. one thing at a time or you wont know what actually fixed the problem.

Vetal

iTrader: (3)

So best place is brake booster pipe? I wouldn't like to mess with brakes if possible... That other line near MAP sensor - where does it go to?

Vetal

iTrader: (3)

Didn't quite understand what should I look for... Just some kind of 3-way coupler?
You mean they went 8's with ebay IC?

CarsandWomen

iTrader: (19)

that is the vaccum line that controls the Blim door that directs witch HVAC vents blow the air. it goes over to just in front of the PCM into a T fitting, one ways goes up front into a vaccum chamber that holds it, the other goes right into the switch in the middle of your AC controls. Im currently useing it for my vaccum/boost guage.

98Camarod

iTrader: (43)

I use the port on the passenger side that is after the throttle body for my boost reference.

What turbo kit is it? Are you seeing any knock?

HUNTER02SS

iTrader: (24)

Kp has gone high 8's with that intercooler and cablebandit has gone low 9's with it as well. I am sure a few others have as well.
You will not effect your brakes by installing the manifold log inline with the brakbooster.

Go to mcmaster.com and search for "manifolds" you will see there.

Vetal

iTrader: (3)

Thank you, I will try to find it!

Vetal

iTrader: (3)

I don't have any port there I think... That is LS6 intake if that matters.
This is TC78 with truck manifolds and ebay 4" intercooler. I sometimes get knock at 3600 and after to some 4500, don't know what it is, but it was there even without turbo and even at partial load...

Vetal

iTrader: (3)

OK found 2 lines... 1 approx. 8mm is behind TB and connects (I think) both valve covers with the manifold. Is that right?
Second line that carsandwomen wrote about, some 3-4mm line, going from the back of the manifold into some small cylinder (about 3/4" large) near the PCM, then into T-piece and from there one line goes to firewall, and other one somewhere to the front (where?)
Is it OK to connect to that line, before the cylinnder? it's small diameter and in the most easy-to-reach spot, I wonder why everybody don't use it for boost reference?

98Camarod

iTrader: (43)

Look in the sticky to see the routing. It shows the port I'm talking about. I also have a ls6 intake

Spoolinsteve

I would measure your boost at the manifold as well.


Why dont you perform a boost leak test?
Get a spray bottle of soapy water, make a coupler with a schrader valve in it to fit either your turbo or hotpipe where the compressor discharges from.

Disconnect your boost controller.

Pressurize the pipe.

Listen/spray for leaks.

Done.

Vetal

iTrader: (3)

Sure, no doubt. But I am glad I had it connected to turbo first, otherwise I wouldn't bother to measure pressure drop across IC, now I definetely will
I will, later. I've broken leg this saturday, and at this point I'm 99% certain there is no boost leak, so will leave this for spring, cause it's not that easy to work on the car with one leg in the air

CarsandWomen

iTrader: (19)

no, not right. thats part of the PCV system and serves to even out the pressure between the valve covers, those lines eventually go into the TB.

Thats the one! the one that goes to the front goes to a Vaccum canister that holds vaccum so the ac will work even when your accelerating, it also serves to shut off the AC at WOT.. DO NOT HOOK TO THE LINE THAT RUNS TO THE FRONT. hook into the plastic line from the manifold before it hits anything! that will give you accurate manifold pressure.

damn that sucks lol

BLOWNBLUEZ06

iTrader: (17)

I guess you learned your lesson on how not to talk to Latvian women.

Vetal

iTrader: (3)

come on, that's what I wrote - 2 valve covers, and then goes into manifold (on the pass side) before TB... Or isn't it?
Yes deffo I will make line from manifold go into T and then continue to that tiny cylinder (what is this actually?) and to the boost gauge. I just wonder why don't everybody use such a perfect spot?
BTW, where is this vacuum canister??

Vetal

iTrader: (3)

LOL, you knew

CarsandWomen

iTrader: (19)

sorry, i meant thats not the line i was directing you to look for, and yes you are correct, thats where it goes.

vac canister is just in front of the core support, and i dunno why nobody uses it, was soooooo easy to use it when i installed mine.

Vetal

iTrader: (3)

Oukey, here's a little update... Connected boost gauge to the small line that goes from somewhere at the back of the intake to the T near the PCM (the line CarsandWomen described). As was expected, boost in the manifold indeed drops, but way too much - from about 7.5 psi to about 5 or maybe even a bit less :o I didn't think that would be such drop at only about 500Hp... So I guess this IC core is crap...
I raised boost a bit until I had about 10psi at peak torque, and it dropped to about 7.5psi at the top end, and I got about 420whp. Still much less than I expected (I thought there should be gain around 18% due to higher charge density)...

HUNTER02SS

iTrader: (24)

Have you pressure checked everything? Check the boost pressure before the intercooler as well, and see what that is as well. I havn't re-read back thru all your post, but that much pressure drop is a leak somewhere I would think..

MUSTANGBRKR02

iTrader: (91)

That is a good site thanks Hunter