AFPR vacume hose question

Osmosis

New member
I just purchased a Holley AFPR for my typhoon. I noticed the vacume line is ran to the top of the fuel pressure regulator on the stock unit. Now, On my new AFPR, there is no vacume line on the top. There is a screw adjustment on the top where the stock vacume line goes to. Once I adjust the fuel pressure, do I put the vacume line to the top of the AFPR?

Also, what fuel pressure should I run with the ultimate chip runing 18psi?

Thank you for the help!:tup:
 

93 TY 2185

Donating Member
Re: AFPR vacume hose question

You may not have the right style of AFPR.
The line is there as a boost reference to raise the fuel pressure 1 PSI per 1 PSI of boost.
The Ultimate chip you should start with 50 PSI and tune from there.
HTH
 

Osmosis

New member
Re: AFPR vacume hose question

I got the holley afpr that was for the grand nationals. The people @ jegs said it was also for the typhoon/syclone.

What I have in front of me has a threaded female attachment on the bottom.
On the side, it has an O ring fitting
On the top it has a screw that you screw in to increase the fuel pressure.

I see no vacume port on this thing, unless I attache the vacume hose to the top of the afpr where the screw is???
 

Osmosis

New member
Re: AFPR vacume hose question

Well,

The tech support @ Jegs SUCKS! They sent me the wrong part. There is no vacume port on the regulator!

I'm gonna get my afpr @ syty performance!

:tup:
 

pinellas50

New Guy
Re: AFPR vacume hose question

The people @ jegs said it was also for the typhoon/syclone.

I was going to suggest this might be the problem. I did talk to one guy there who knew a thing or two about SyTy's though. He said he knew enough to avoid them like the plague.:rotf:
 

NecroWolf

lost marbles member
Re: AFPR vacume hose question

I was going to suggest this might be the problem. I did talk to one guy there who knew a thing or two about SyTy's though. He said he knew enough to avoid them like the plague.:rotf:

he probably knows more than the rest of us
 
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