1sicsol

Theres two (boost/vacume) lines on my Greddy wastegate. One on the TOP, and one from the SIDE.

I dont have a boost controoler yet, so I need to hook them up. I have to move the car.

What I need to know is, how do I hook up the wastgate lines if I dont have a boost controller? And can I drive the car (without boosting) to transport it?

Right now I have the top wasegate line capped, and the side wastgate line is connected to the turbo elbow IC pipe.

At ilde (800 rpm), the turbo blade is spinnin, is this normal?
Also at idle there is NO exhaust comming out of the dump pipe.

Thanks,
-Mike.

jreynish

iTrader: (2)

Yes the turbo should be spinning at idle it just wont be producing boost,
Yes there should be No ehxuast comming out of wastegate dump-pipe.
Yes if you keep your foot off the throttle you can drive the car to transport it, if you stay off the throttle you won't boost... so there is not danger there for a short drive.
Now you can hook up your wastegate to function... there should be a port on the side or bottom of the wastegate that nipple should go to a source for boost, the nipple on the top of the wastegate should simply stay open you can tie that line until you do get a boost controller.
when you get a boost controller that boost sourve you will T then one will go into the T and the other will go into a boost solonoid, which will in turn have the line you have connected to the top nipple that is now open vented you will connect to the correct port on the boost control solonoid.

1sicsol

So with a boost controller, is this right?

maxcooper

Yes, that picture is correct, though it doesn't show some of the details like which ports on the boost controller solenoid to use.

For the moment, it doesn't matter how the wastegate is hooked up because you won't get any boost just putzing around.

But if you want to boost before you get a boost controller, just uncap the top port on the wastegate and you will be good to go. It will run the car at your wastegate's spring pressure, which is the least boost you could possibly get with a boost controller anyway. In other words, adding a boost controller will only increase the amount of boost you get.

-Max

MARTIN

There is no difference between adding a boost controller and riding with spring pressure. The min boost will stay the same.. If anything it would be safe running the spring pressure than adding a boost controller.. Like he said, all you have to do is connect source to the side nipple...

BATMAN

also if it helps the spring on your waste gate is changeable by who ever makes it i.e. greddy makes 3 springs for your wastegate depending on how much you want to boost. i know greddy makes 3 yellow, red and blue i think ... and each is a different psi pressures. now also. lets say you have a yellow spring in your wastegate now yellow is 9-15 psi.. with a boost controller you can dubble the psi the spring runs at.. if you DONT have a boost controller then you will obviously run the lowest the spring can handle wich would be 9 psi.
so just keep that in mind so check who ever makes your wastegate for more info on it.

eViLRotor

iTrader: (2)

A boost controller doesn't just raise boost, it also gives better response.

So even if you run 10 psi on spring, and 10 psi with an EBC (still using 10 psi spring), you will get much better spoolup with the controller.

impactwrench

Not entirely true. On my HKS standardard wastegate, I had to go to the 4# spring to get a minimum boost of 10 PSI. I think it has to do with the way waste is routed out of exhaust manifold. It took 2 months and 4 springs to get it straight