Pdub383426

Wow, that made things alot more clear for me now, thank you for posting that link, I appreciate it.

Now look at my setup now, it appears that there are two vacuum lines coming off of my internal wastegate, one that goes to the top of my BOV, and the other goes straight to my throttle body.

Both of these lines are wide open, so that would mean it is unrestricted and should be boosting unlimited correct? Possibly my turbo is too big to make a scary amount of boost?

Thanks guys for answering my questions. I'm looking to get around 3hp per cubic inch on this bike, and am about 2 right now after porting, flowtesting my head and valve job, and a few other nifty tricks I do often in naturally aspirated land.... but for that extra kick I'm lookin for more boost.

idiot-stick

you can't expect us to make sense of what's going on in your particular, cramped setup. Saying what line goes to what depends on what it's COMING from.

If you read up, there will be absolutely no question as to what needs to be hooked up where.

If your WG has 2 vacuum ports, there is a thread around here somewhere about hooking it up. It might just be that the bottom one is optional (I forget).

Pdub383426

The only vacuum lines I have running, are two from the top of my internal wastegate, one going to the top of my BOV, and the other going to my throttle body. Thanks, I will search for that thread.... I did a bunch of searching before I signed up, but couldn't find the info to fit on the right boot. And yes it is cramped in there.... But hides it alot better from others

MerkurColin

Add an adjustable restriction (manual boost controller) between the throttle body and wastegate nipple.

And quit being a - is that aquarium hose?

Pdub383426

LOL, what type of hose should I get? I didn't relize boost was going through there until you guys helped me out :1

These hoses are just pushed on, I guess it'll be a good idea to hose clamp them. From what I understand, with no boost controller on this turbo line, the turbo should keep boosting until it blows correct? Because this line has been open to the throttle body for some time now, but haven't seen any ill effects as of yet

MerkurColin

No, with a line straight from the intake to the wastegate, the turbo will only create as much boost as the wastegate will allow. If the wastegate has a 10 psi spring, it will open at 10 psi. If you put a ball and spring valve inline, you can INCREASE the boost from 10 psi. You cannot use a manual boost controller to lower the boost past the wastegate spring setting.

Get some black vacuum hose from a parts store and zip-tie those lines.

Colin

idiot-stick

This hasnt been brought up yet and it's not wastegate-related but you have modified your fuel system, right?

Pdub383426

Not yet, but I have made a different fuel map for it if that counts as modification

idiot-stick

Well, just as long as you know boosting it with the stock map, you'll get a damaged piston quick.

Those things are fuel injected? Bad ***. I'm outta the loop.

Pdub383426

Yup, got this thing 3 years ago, very easy to tune