M-Tuned 99-05 FPR Kit
2 Attachment(s)
Good Evening,
Spent yesterday converting my 2000SE to a Fuel Return and FPR type system using the M-Tuned Fuel Pressure Regulator. M-Tuned Adjustable Fuel Pressure Regulator -6 M-Tuned http://www.etdracing.com/m-tuned/images/mfpr1.jpg For fuel lines we used the following which we sell under our sister company K-Tuned.com -An Fuel and Coolant Fittings K Series Swap Parts - K-Tuned http://etdracing.com/kev/anfittingsandfuelparts.jpg I ended up running -6 line (Larger Bore, usually good till around 500hp) from the back of the car to the front and then used the stock feed line as a return. I can tell you that this is the way the 99-05 Miata should have come! The car is sooo much easier to tune as I don't have 60-65psi of fuel under are situations. I have the FPR set for 48psi at idle, 58 at 0psi and then the FPR adds 1psi of fuel for every psi of boost. 7 psi of boost nets me 65psi of fuel. We made duplicates of everything we produced on my car yesterday and will be selling this as a complete kit (Fuel Rail, Fuel Pressure Regulator, Fittings, Adapters, -6 Line etc) and we will also have a version for those of you who already own our rail. (FPR, Fittings, Adapters, Lines etc) John took all the instruction manual pictures with his good camera, so here are a few little teaser pictures from my Blackberry. Please ingore the old FMII 4 Injector Manifold. I''ve got to take it off soon, but want to port my replacement manifold first. |
Drove the car again today and finished fine tuning it. Car feels much better now and I can certainly get more out of this fuel system vs the stock system as I start to turn up the boost.
Time for the Walbro 255HP and my built bottom end.... |
Marc, let me know if you'd assemble a kit for me that will work with the FM fuel rail and AEM FPR. Essentially I'd like to change to -6 lines for some fueling overhead.
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Hi Deerhunter..
I'd need to know what the threads are on the AEM FPR and FM Rail. You may have to tap your FM fuel rail return outlet as I don't think it is tapped like ours. I'd probably recommend using the stock return and just running a new feed line. |
Bringing this back from the dead,
Marc, I'm curious. I've been contemplating on converting my 99 into a returned fuel system. Did you use a contoured return fuel line from a 90-97 car? I understand that I gotta pull the stupid FPR in the fuel tank out and just let it dump into the tank like that, then I have to use a 90-97 FPR on the fuel rail, or plumb a FPR like the M-tuned one from the fuel rail, to the return line, then back into the tank. |
Perfect timing on bringing this back from the dead. Looking to do the same on my 99. Went to your website and didn't see a full kit. Do you have pricing on everything, minus the fuel rail (I already have yours)?
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I wanted to do this as well
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Couldn't the factory regulator in the tank be modified to provide higher pressure? Or is the goal to have the pressure lower so the car idles easier on huge injectors?
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