Re: Those w/SPG9-RRFPR&30#injtrs.. what is ur pressure? - Saab Performance Bulletin Board - Saabnet.com
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Re: Those w/SPG9-RRFPR&30#injtrs.. what is ur pressure?
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Posted by Phil [Email] (more from Phil) on Fri, 27 Jun 2003 13:08:14 Share Post by Email
In Reply to: Re: Those w/SPG9-RRFPR&30#injtrs.. what is ur pressure?, lms, Fri, 27 Jun 2003 11:06:41
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As LMS has already said, you'r running too much pressure with this setup. I have the SPG9 RRFPR, 30Lb Injectors, and Aquamist as well. I installed a fuel pressure gaue at the rail at the same time I sittalled the rest of those items. When I first got the gauge and installed it, the pressure at the rail was reading about 2.8 bar but that was with 27Lb injectors fitted. When I tlaked to Dave about upgrading to 30Lb units, he suggested I lower the pressure slightly, but said to ensure that the pressure didn't get set lower than 2.0 Bar to be safe. So I fitted the 30 Lb units and lowered the RRFPR pressure to 2.2 bar or 32 psi at idle. With the 30Lb units installed, the RRFPR adjusted to 2.2 bar, and Auqamist set to turn on at 10 psi..... I now get 2 bars rich at 10-11 psi, and 3 bars rich at roughly 14-15 psi on my A/F gauge. Before the fuel pressure had been lowered I was getting 4 bars rich on the A/F gauge at like 10 psi. So it was running rich.

Hope this helps,
Phil

posted by 198.26.12...

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