i have a buddy that has just put a turbo kit on a jdm b16. He is having trouble on where to route the vacuum lines on the turbo kit. Any suggestions??

 

What is he having trouble with ? Wastegate?

 

Preferrably somewhere that goes to the intake manifold

 

he needs to know how to route everything....bov, wastegate, and boost gauge

 

route them all to an intake manifold vacuum source.

 

It's far better to connect the wastegate to the compressor housing, less of a chance of spiking and creep. BOV obviously connects to anything on the IM side.

 

get a Vacuum Block like this hook it up to the brake booster route lines from there

 

ok thanks everybody! i have a good idea of how this is going to work. thanks for all of the input with this problem. i should have this hooked up in no time. I appreciate all of this.

 

Not trying to bash your way of doing it ... but I disagree. In my opinion, it is always better to use the intake manifold as a vacuum source for the wastegate. There is always a pressure drop between the compressor outlet to the intake manifold due to differences in area of path in which the charged air passes through (such as intercooler and piping size), regardless of how minute the drop is. By tapping it from the compressor outlet, the wastegate will not see that pressure drop. Tapping it from the intake manifold is a more representation of the actual boost or charged air that is being burnt for combustion purposes. Sure, people can argue that it will make your turbo work a little harder to equalize that pressure drop. But really, almost 90% of us with boosted cars are not even pushing the efficiency range of our turbos.

As far as spikes, that can be dealth with using a better wastegate. Too bad there is not many options with those who are stuck with internal wastegates.

.... again Garn, not bashing you at all.......