Fuel Pressure Regulator Suggestions...

For discussing injector selection,manifold modifications, throttle bodies, fuel supply system design and construction, and FIdle valves and IACs.
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Nfsjunkie91
MegaSquirt Newbie
Posts: 1
Joined: Fri Jul 06, 2012 1:12 pm

Fuel Pressure Regulator Suggestions...

Post by Nfsjunkie91 »

Hey everyone, this is my first post here!

I'm in the process of converting a Mercedes 190e 2.3 to EFI using MegaSquirt v3.0. Currently, I'm in the process of finishing up the details about what hardware I'm going to be using. I am using the 19lb/hr injectors from a Ford 4.6 (XL2E-C5A, I think), a fuel rail from a Saab 900 (matches the bore spacing) that I brazed mounts on to so it will affix to the stock intake manifold. My main concerns right now are this:

1. What kind of fuel pressure regulator should I use? I understand that the Ford injectors are rated at 3bar, and a quick eBay search turns up some "universal" adjustable fuel pressure regulators, but also a brand new 3 bar fuel pressure regulator from a VW 1.8t. Would this be a good choice? Link: eBay links not allowed. Another person (tjts1) who MS'd his 2.3 used an Isuzu Rodeo FPR:eBay links not allowed

2. Where should I buy the fuel fittings and fuel lines to make all of this stuff "go together," and how do I do it as inexpensively as possible? I'm okay with clamping some hose onto the FPR, but when it comes to using the correct fittings and how to properly barb them, etc, I'm a novice, and advice would be greatly appreciated.

3. What's the best car to get an IAT sensor from, and where should I mount it on my car? At the throttle-body? In the manifold?

I greatly appreciate any help that can be given, and will answer any questions as best as I can. Thanks much!
Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: Fuel Pressure Regulator Suggestions...

Post by Matt Cramer »

As a general rule, any 3 bar fuel pressure regulator (or adjustable one in the 3 bar range) that you have an easy time plumbing up.

GM IAT sensors are a good choice for that part, at least in the US.

If you're not familiar with automotive plumbing, maybe Carroll Smith's Nuts, Bolts, Fasteners and Plumbing Handbook may be a good starting point.
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