AFPR modification
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Joined: Jul 2002
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From: Bellevue NE
AFPR modification
I bought an AFPR and broke the fitting for the vacum hose, Can I use my factory one and tap out a hole for the screw and put the disk in it and hope it works? Thanks for your advice. :flag
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Joined: Dec 2000
Posts: 90,675
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From: SE NY
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Re: AFPR modification (91L98Vette)
That is the way to make a "cheap" AFPR, only you would then use a quarter as the "disk".
You will likely need to weld a nut onto the FPR cap as it may be too thin for the threads to take.
You might consider tapping into the AFPR cap and threading a piece of Al tubing to fit.
You will likely need to weld a nut onto the FPR cap as it may be too thin for the threads to take.
You might consider tapping into the AFPR cap and threading a piece of Al tubing to fit.
Thread Starter
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Joined: Jul 2002
Posts: 60
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From: Bellevue NE
Re: AFPR modification (91L98Vette)
I did a pressure test with the stock regulator and It was at around 39 to 40 psi and I guess when you give it gas it is supposed to drop considerably right?
I'll have to look but my insider hints says 45 psi is desirable. I wonder can someone tell me If I should try to put in an AFPR If I have the following mods and will it help greatly on performance: Cut filter lid, K&n filter, throttle body airfoil(the real one you bolt on), front y w/out precats and high flow main cat, and finally a Magnaflow catback. I was stupid also and got a Ed wright fast chip but haven't installed it yet. Thanks for your input :steering:
I'll have to look but my insider hints says 45 psi is desirable. I wonder can someone tell me If I should try to put in an AFPR If I have the following mods and will it help greatly on performance: Cut filter lid, K&n filter, throttle body airfoil(the real one you bolt on), front y w/out precats and high flow main cat, and finally a Magnaflow catback. I was stupid also and got a Ed wright fast chip but haven't installed it yet. Thanks for your input :steering:
Racer
Joined: Mar 2003
Posts: 431
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From: Nova Scotia Canada, Eh.
Re: AFPR modification (91L98Vette)
:lurk:
I have pretty much same setup and am looking for the best tune for my AFPR now.
Read archive posts that suggest going less than stock for more power and as much as 50 pounds for more power. Unfortunately, there's a lot of folks out there who will respond that we've wasted our cash too.
I'll be watching closely.
I have pretty much same setup and am looking for the best tune for my AFPR now.
Read archive posts that suggest going less than stock for more power and as much as 50 pounds for more power. Unfortunately, there's a lot of folks out there who will respond that we've wasted our cash too.
I'll be watching closely.
