Author Topic: AFPR-Kirbans vs Accufab  (Read 106 times)

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Offline Scoobum

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AFPR-Kirbans vs Accufab
« on: June 14 2018, 04:46:48 PM »
 I have a stock GN I'm picking up for an individual this Saturday...who will remain anonymous...fo r now. Which AFPR do you guys prefer? Kirbans or Accufab. I had a Kirbans on my car 15 years ago when I bought it...and it died about 7 years ago. I've been using an Accufab I bought from Jason...with zero issues. Let's hear it. Which do you guys prefer?


A street chip from Eric and an AFPR is going on the car right off the hop.
109 STD Bore Short Block-Balanced Rotating Assembly
Stock Crank
Stock Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
8445 Race Ported Big Valve Heads
Stock Rockers
5.7 TT 110 Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-1.58-25 PSI

Offline earlbrown

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Re: AFPR-Kirbans vs Accufab
« Reply #1 on: June 14 2018, 05:25:26 PM »
Modern Accufabs are pieces of shit.   After seeing a power logger log showing how poor they maintain pressure (even at idle) I wasn't the least bit surprised when I took it apart and saw how horrible the design is.


If I were to buy one today, it'd be the Kirban unit.
'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline good2win22

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Re: AFPR-Kirbans vs Accufab
« Reply #2 on: June 14 2018, 05:34:06 PM »
Accufab has new design. The old design had a flat plate covering the return. The new design has a  ball that sits on a seat kind of like a needle and seat on a float of a carburetor. I have yet to have any consistency with a Kirban regulator. Just my 2 cents.
Jason

1982 Jeep Wagoneer Limited
1987 Turbo Regal Limited
2011 Jeep Wrangler Unlimited JK
2015 Ram 2500 Cummins

Offline Scoobum

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Re: AFPR-Kirbans vs Accufab
« Reply #3 on: June 14 2018, 05:38:54 PM »
Jason...when did Accufab make the change?
109 STD Bore Short Block-Balanced Rotating Assembly
Stock Crank
Stock Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
8445 Race Ported Big Valve Heads
Stock Rockers
5.7 TT 110 Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-1.58-25 PSI

Offline Scoobum

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Re: AFPR-Kirbans vs Accufab
« Reply #4 on: June 14 2018, 05:40:05 PM »
Modern Accufabs are pieces of shit.   After seeing a power logger log showing how poor they maintain pressure (even at idle) I wasn't the least bit surprised when I took it apart and saw how horrible the design is.


If I were to buy one today, it'd be the Kirban unit.

Earl...mine is about 7-8 years old...it's an Accufab. Do I have the old design?
109 STD Bore Short Block-Balanced Rotating Assembly
Stock Crank
Stock Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
8445 Race Ported Big Valve Heads
Stock Rockers
5.7 TT 110 Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-1.58-25 PSI

Offline daveismissing

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Re: AFPR-Kirbans vs Accufab
« Reply #5 on: June 14 2018, 09:54:18 PM »
I think mine is newer that that, I may have to switch to the Kirban's I got from William.
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Offline good2win22

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Re: AFPR-Kirbans vs Accufab
« Reply #6 on: June 14 2018, 11:34:54 PM »
Jason...when did Accufab make the change?
Not sure Brad. Both rebuild kits are offered by accufab just have to open yours up to see which one you have.
Jason

1982 Jeep Wagoneer Limited
1987 Turbo Regal Limited
2011 Jeep Wrangler Unlimited JK
2015 Ram 2500 Cummins

Offline Scoobum

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Re: AFPR-Kirbans vs Accufab
« Reply #7 on: June 15 2018, 03:37:44 PM »
Thanks for the info guys.
109 STD Bore Short Block-Balanced Rotating Assembly
Stock Crank
Stock Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
8445 Race Ported Big Valve Heads
Stock Rockers
5.7 TT 110 Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-1.58-25 PSI


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