You'll only see the benefit if you are going to use modified APC (higher turbo boost). Then you run into the next 'hurdle'. So you get bigger injector. Then you want to make it go even faster. So you reprogram ECU (fuel mapping). Then 3 bar isn't optimal, so you get a Rising Rate Fuel Pressure Regulator. Then, you realize that you got too much back pressure, so you install three inch straight pipe your exhaust. Off course, then you don't have enough air coming in, so you install open air K&N type air filter. Then the bigger turbo, until you get a 250 - 300 hp monster. All is good until you break the transmission or blow a head gasket. Now while the engine/tranny is out, you decide to beef up the tranny and port the head, change the cam, etc.

See what the 3 bar FPR started? (It may not be in that order, but you get the picture. 3 bar FPR with APC mod usually is the start of the mod process. I have it in my '90 SPG with manual boost control to 21 psi and 2.5 inch straight exhaust with 30 lbs fuel injectors.) I just installed the stage 2 APC yesterday and will be installing the 3 bar FPR in my '88 Spring Time look-alike convertible. Now I have BOOOOST. I'll have more tonight. More boost = bigger smile :)

James from Michigan...
'95 9000 Aero auto with 49k miles and no mods (parked for the summer)
'90 SPG with 220k miles with 21 psi boost (under going clutch fix)
'88 SiS copy with stage 2 APC

posted by 68.20.1...

• 3.0 FPR benefits, whitesaab, Wed, 27 Apr 2005 16:42:41
  • Re: 3.0 FPR benefits - start of the mod, jimtimkim, Thu, 28 Apr 2005 10:45:57 <-- Viewing This Message
  • Re: 3.0 FPR benefits, Andy , Wed, 27 Apr 2005 16:51:55
    • Well, not exactly...., Chaz, Wed, 27 Apr 2005 17:05:05
    • OK, I have the negative, how about some positive?, whitesaab, Wed, 27 Apr 2005 17:04:38
      • benefit, JJ, Wed, 27 Apr 2005 17:16:29
        • Re: benefit, Glens, Thu, 28 Apr 2005 15:19:17
          • FMS 24#, JJ, Thu, 28 Apr 2005 16:19:18
            • Re: FMS 24#, NRG, Tue, 16 Aug 2005 10:55:06
            • Where did you find them, whitesaab, Fri, 29 Apr 2005 05:52:58
              • Re: Where had done the 3.0/APC/injector MODS???, NRG, Thu, 18 Aug 2005 18:49:44
                • red line boost??, NRG, Thu, 18 Aug 2005 19:02:09

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