Which vacuum hoses are common to leak that affect 2nd turbo

[RB-GTE]

As of right now performance wise I have a pretty stock Supra.

It boosts around 0.7 bar, ARC 2 row intercooler, 3" straight through exhaust with the full stock cat, and a light weight flywheel.

While a friend has his boost controller only set on 0.5 bar he manages to slightly always beast me off the line and in the straight, he has less performance upgrades than me.

 

I'd say maybe only 30% of the time the 2nd turbo will spool strong and car will pull

but mostly the car will be accelerating but I don't feel the kick from the 2nd turbo.. it's very sluggish.

 

I drove another Supra TT recently which was stock and felt soooo much more responsive.

 

 

So my real question is what are some common hoses that could be leaking or not properly connected?

I figure I'd like to start on those before I go checking all the rest.

 

 

My sequential system right now is annoying. I want to get it figured out... so then I can do the TTC setup and 1st/2nd decat, etc.

[Ian C]

Here is a good place to start:

http://www.mkivsupra.net/vbb/showthread.php?35926-The-sequential-system

[RB-GTE]

If you combine the description of Problem 1 and problem 3 that's EXACTLY the issues I'm having. It actually does spool fine SOMETIMES. So I'm positive there is just a leak somewhere, either loose hose or cracked.

 

I'll start off by checking all the hoses that are running to the IACV and EGCV and see if I can find any trances.

 

That's for the link, it's quite helpful.