Purge Valve Location on 2.9L Whipple

S197 GT · Aug 20, 2011

Where do you put the damn purge valve?

The instructions included are for the 2.3L which includes a throttle body spacer. The purge valve is mounted on this throttle body spacer, but the 2.9L has the Crusher Inlet, so there is no throttle body spacer.

We've been going crazy over here trying to find a spot to mount this.

Thanks in advance to anyone that knows where to mount this.

KJGT · Aug 20, 2011

My guess is you will have to plumb it in behind the TB somewhere and mount it remotely like the early Boss 302 intake adopters did if the blower inlet doesnt have the flange for it.

S197 GT · Aug 20, 2011

KJGT said:
My guess is you will have to plumb it in behind the TB somewhere and mount it remotely like the early Boss 302 intake adopters did if the blower inlet doesnt have the flange for it.

The inlet doesn't have a flange for it, but I'm pretty sure I've got a good idea for making it work.

I'll try it out on Monday, and we'll see how it turns out.

I wanna hear from anyone that has installed this blower. Lethal Performance and Evo will get phone calls from me first thing on Monday morning.

JEWC_Motorsports · Aug 20, 2011

http://www.mustang50magazine.com/te..._performance_whipple_blower_test/viewall.html

Im not sure if any of this will help but maybe.

S197 GT · Aug 20, 2011

Thanks James. That article is the 2.3L.

Here is the article I think you were looking for:

http://www.mustang50magazine.com/te...erformance_whipple_blower_test_two/index.html

Here is a comparison pic of both blowers. 2.9L on the left with the 2.3L on the right:

m5lp_1103_02_+lethal_performance_2011_whipple_supercharger_kit+_superchargers.jpg

Notice how the inlet to the rear of the 2.3L is in (2) pieces. The piece that mounts directly to the back of the blower would be the inlet, and the part that swings out and attaches to the throttle body is what is referred to as the throttle body spacer. This throttle body spacer is where you attach the Purge Valve to the 2.3L. You can actually see it attached in this picture.

The 2.9L has the Crusher inlet which is one piece. There is no raised area for the purge valve.

Even in this pic, I can't see where they mounted it. I'm thinking it may be tucked down below the brake booster...

m5lp_1103_16_+lethal_performance_2011_whipple_supercharger_kit+_new_blower_installed.jpg

We'll see.

S197 GT · Aug 22, 2011

Just got this pic from Jared at Lethal.

You can barely see it below the inlet.

chuck@evoperform · Aug 22, 2011

I would just use the purge valve from a Boss. I've done that on a couple installs.........

S197 GT · Aug 22, 2011

[email protected] said:
I would just use the purge valve from a Boss. I've done that on a couple installs.........

Could you elaborate a bit more on that Chuck.

chuck@evoperform · Aug 22, 2011

Unfortunately I don't have any pics of how I did it. If you have a copy of the Oct 2011 issue of 5.0, page 62 has a pic of one installed on a KB setup. It's essenially a Boss evap solenoid, hung vertically from the nipple on the back of the blower, with the evap line from the fender area modified so it plugs right it.

S197 GT · Aug 22, 2011

Thanks Chuck!

Here's a great pic I got from Jared that shows it pretty well.

Is this how you guys do it too?

chuck@evoperform · Aug 22, 2011

Sorta, but I used the Boss solenoid instead of the regular 5.0 solenoid. Looks cleaner. Let me see if i can take a halfway decent pic of the pic in the mag and post it here

chuck@evoperform · Aug 22, 2011

Purge Valve Location on 2.9L Whipple

S197 GT

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KJGT

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S197 GT

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JEWC_Motorsports

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chuck@evoperform

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S197 GT

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chuck@evoperform

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chuck@evoperform

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