1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Adjustable Fuel Pressure Regulator

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Old 10-19-03, 06:21 PM
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Adjustable Fuel Pressure Regulator

Does anyonw know where i can find a good adjustable fuel pressure regulator for an 85 -SE...13b egi
Old 10-19-03, 06:27 PM
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Get a Holley 1-5psi regulator. That's what I have and works great.
Old 10-19-03, 07:29 PM
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EFI means that you're going to need a fuel pressure regulator good for up to 50-60psi. You can check with some of the on-line retailers, and possibly with the 2nd Gen forum guys, as they are all using EFI in the later generation cars.

Are you having a flooding problem with your 13B RE-EGI motor, or just trying to make sure that you're getting good consistent fuel pressure at the injectors?
Old 10-19-03, 07:39 PM
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Old 10-19-03, 09:55 PM
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the problem is flooding and i've tried everything else...just want something that i can also use later with mods
Old 10-19-03, 10:16 PM
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Try www.summitracing.com

~T.J.
Old 10-20-03, 03:18 AM
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Possibly injectors as well.

Good luck
Old 10-20-03, 01:11 PM
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the problem is flooding and i've tried everything else...just want something that i can also use later with mods
Have you checked the fuel pressure and found something wrong? IMO a new fuel pressure regulator is unlikely to do jack squat to eliminate flooding. The problem is usually leaky injectors or not running the car until its warmed up. In fact I bet a FPR would only make it worse, because they typically hold rail pressure longer after the pump shuts off than the stock one.

Unless future mods include a massive turbo, save your money -- don't buy an FPR.
Old 10-20-03, 01:20 PM
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Fuel cutoff switch will keep you out of trouble for a while but the real reason needs to be dealt with eventually ( ie injectors).



If ya gotta spend the 125+ dollars to feel better though Summit is the place.
Old 10-20-03, 01:23 PM
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You need to buy a good high pressure fuel tester, and see what your fuel pressure is. The factory manual does a excellent job of explaining what the fuel pressure should be with and without the regulator.

My bet will be on bad injector(s), but do the testing to verify a problem instead of wasting a lot of money by being a parts changer.

John
Old 10-20-03, 01:36 PM
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I'm having the same problem with flooding and I just priced the pressure regulator from Mazda and it is
$ 148.00. I'm considering replacing it with a aftermarket unit, but what problems can I expect?
Old 10-20-03, 09:32 PM
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well...it has 17800 on stock injectors and regulator and sat for 2 years i havi it torn apart and was going to change all the vacume lines fuel lines injectors and regulator, i was just wanting to find a good fit adjustable regulator...adjustable
Old 10-20-03, 10:43 PM
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we use the malpassi regulators, adjustable from 15psi to 70odd psi, they are worth $210au or about $150us,

Dale
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