Where are you mounting the bypass at?

 

Nice video!!

 

Thanks.
It will be mounted on the intake elbow, about 1-1/2" away from this new fitting on the blower inlet. They will be connected with about a 4" length of 1-1/2" radiator hose.

 

Thats right you are running a Vic jr. In my head I was thinking Mike, you messed up that is going to hit the intake.... Nevermind. I am staying tuned.

 

Oohh yeah me likey.
Mike function>form right?
I cant wait to hear what ya think.

 

Absolutely. As a side benefit, ugly is low maintenance.

 

Well...... what is the latest...?? Is it running?

 

I have the blower mounted, I just have to mount the bypass and make a holder for the throttle cable.

 

As Pat (03sierraslt) knows, the reason for this project was to relocate the bypass. The bigger throttle was a side benefit. When I scoped it all out to see what it would take to relocate the bypass, I figured it would take a good amount of surgery to the blower inlet housing. it was not too long ago that sincalT/A convinced me that upping the throttle size would yield big improvements. So the throttle was a "might as well".

The first pic is just to compare the new housing to the original in the beginning of this thread.

In the second pic everything is in place. The throttle cable bracket is now mounted to the firewall, I got lucky in how it lined up. The Whipple had the bracket mounted to a big lug on the inlet housing.

The third pic shows the misalignment between the bypass and the inlet tube, it was tough getting the radiator hose on. The sealer on the mounting flange for the bypass just ensures that the bolts are sealed, the flange is welded around the ID to he intake elbow.

 

It is going to need some adjustment, so I can't give a reliable report as to if relocating the bypass improved the idle problems. It does stay running going from Park to Drive now and at stop signs at operating temperature. It still has problems during warmup. it also is "cruise controlling", acting like I am giving it gas when I'm not. I will try closing the throttle stop and resetting the 0% TPS. I am afraid that will bring back my idling problems, I hope not.
I have not gone WOT to check the intake vacuum, my auxiliary fuel pump is not hooked up. You can see the terminals on a microswitch that I installed on the bypass actuator, the switch will activate the pump.
The truck does seem a little peppier now, I imagine that is because opening the new throttle a little is like opening the old one a little more.
I think there is boost lag now, too.