Whipple Fuel Trims

That's more than questionable. I'd say its guilty!

Which fitting is it?

SVT-DADDY said:

That's more than questionable. I'd say its guilty!

Which fitting is it?

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Driver side on the manifold close to the supercharger inlet/throttle body.

In the picture below- right where the play button arrow is.

that is the line that feeds the bypass actuator. if it is leaking you will go into boost too early and will run like crap

Yep that’s the line I was referring to. I didn’t like it from day one and immediately replaced it with a heavier duty line and clamped it on both end.

As always, Dustin is coming through for me and shipping me a new hose made out of Viton.

Hopefully between fixing the exhaust leak tomorrow and swapping out the hose when it arrives, I'll be cured.

I'll keep you guys posted and thank you once again for all the help!

stang17 said:

Driver side on the manifold close to the supercharger inlet/throttle body.

In the picture below- right where the play button arrow is.

Click to expand...

That line is a bitch because you will have to disconnect the air intake and remove the throttle body to replace that vacuum line.

So Dustin sent me a new fitting. Vacuum still reads about the same, but car runs and idles noticeably better. I still have a small exhaust leak I'm trying to hunt down, but making progress.

Below is a better picture of the fitting I replaced.

stang17 said:

So Dustin sent me a new fitting. Vacuum still reads about the same, but car runs and idles noticeably better. I still have a small exhaust leak I'm trying to hunt down, but making progress.

Below is a better picture of the fitting I replaced.

Click to expand...

What is the name of that part? My installer never installed that and I have a large vacuum leak I am trying to track down... this looks like a great place to start .

Check all your vacuum lines to the intake manifold and the one under the throttle body.

Tomlouns said:

What is the name of that part? My installer never installed that and I have a large vacuum leak I am trying to track down... this looks like a great place to start .

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Whipple changed that connection on later kits. They replaced it with a 90 degree metal fitting in the manifold and a straight hose.

Ruiner46 said:

Whipple changed that connection on later kits. They replaced it with a 90 degree metal fitting in the manifold and a straight hose.

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I see that now and Thank you ... I did find my leak... it was this...

That has been a common mistake by some installers.
Great you found your leak.