Mystery fuel pressure regulator

Fuel Supply & Ignition Systems

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Alexander_Monday
Posts: 109
Joined: Sat Dec 13, 2008 4:30 pm

Mystery fuel pressure regulator

Post by Alexander_Monday » Fri Jun 12, 2009 2:27 pm

This regulator was part of a Whipple 7.4L supercharger kit from the 90's.
Past experiance tells me that if Whipple does not see a possible sale, they have a very short memory.
There is not any writing on it.
It is steel.
The bottom appears to be the inlet.

Does anyone recognize what brand it might be, or have any information about it?
It is possible it was made just for the application.

Since it was for a TBI application, and fuel pressure is typically lower than MPI, I am not sure of the pressure range.

If I apply air pressure to the inlet and put a gauge on the outlet and a small hole to release pressure while I adjust it, will these readings reflect the pressure range it will have with fuel?

Why in the world would it have so many vacuum/boost ports?

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joe1121
Posts: 1
Joined: Tue Mar 27, 2012 12:54 am

Re: Mystery fuel pressure regulator

Post by joe1121 » Tue Mar 27, 2012 12:59 am

do you still ave this? i know this is a long shot but i am in serious need of one of these and this is a few years old but it cant hurt to ask right...

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billz60vw
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Location: portland or

Re: Mystery fuel pressure regulator

Post by billz60vw » Tue Mar 27, 2012 2:01 am

He posts on the samba frequently might try there in the performance section.

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Alexander_Monday
Posts: 109
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Re: Mystery fuel pressure regulator

Post by Alexander_Monday » Tue Mar 27, 2012 7:16 am

Joe,
To tell you the truth, I am not sure. I have been devoting all my time to my new business and my VW stuff has been sitting since June, so there is a good chance I might. I will dig through everything this week and let you know.

34plus2
Posts: 117
Joined: Sun Feb 18, 2007 6:22 pm

Re: Mystery fuel pressure regulator

Post by 34plus2 » Tue Mar 27, 2012 7:36 am

could be an old style mallory fpr.
new one looks like this
http://www.summitracing.com/parts/MAA-4305M/?rtype=10

whipplechargerhelp
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Joined: Fri May 04, 2018 5:50 pm

Re: Mystery fuel pressure regulator

Post by whipplechargerhelp » Fri May 04, 2018 6:20 pm

After all these years to find support for this would be a miracle. Please see the top right of the page where it says Shoptalkfourms.com for the link asking for support for this site. They really need the money and your financial support.
Last edited by whipplechargerhelp on Mon May 07, 2018 1:51 pm, edited 1 time in total.

whipplechargerhelp
Posts: 2
Joined: Fri May 04, 2018 5:50 pm

Re: Mystery fuel pressure regulator

Post by whipplechargerhelp » Mon May 07, 2018 1:48 pm

05/04/2018 Hi:
I am Jonathan Dexter. I have the 5.7 version whipple charger for a 1994 K 1500 and just located the creator of these fuel pressure Regulators. He Worked for them 20 yrs ago and now remans them with improvements or makes them new. I spent 10 yrs searching for help with this.
Dan Darge Powertrain Electronics LLC
6600 Toro Creek Rd.
Atascadero CA 93422-1004

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Alexander_Monday
Posts: 109
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Re: Mystery fuel pressure regulator

Post by Alexander_Monday » Fri Jun 22, 2018 5:48 pm

Wow, blast from the past! Johathan, if I still have that regulator you can have it for shipping cost if you wish.

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raygreenwood
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Re: Mystery fuel pressure regulator

Post by raygreenwood » Mon Jun 25, 2018 11:21 am

That is an interesting regulator!

From what I have tested and seen of manifolds of numerous types...its actually smart to have several vacuum and pressure ports. With regard to vacuum....the vacuum at any given time in various parts of an intake manifold vary a lot. Under boost....I do not know. Logic says it should be more uniform.

And you can gain and lose vacuum or have high variability from spot to spot in the manifold at varying rpm and throttle position. Having a range of vacuum ports ...perhaps sensitive to a different vacuum range at each port...may be a great tuning tool. Ray

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