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Hey guys AEM has there new website up and it finally has some info about there new FPR's....they bolt onto the stock location and they will solve the flow restrictions of the stock regulator!!...I know they are more $$$...but I think it would work better than the stock FPR with the B&M setup??
http://www.aempower.com/fuel.htm
http://www.aempower.com/html/fuel5.jpg
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John
B18C1 powered Civic EX Coupe
'92 Civic VX Hatch...waiting for H22A
[This message has been edited by CivicR (edited September 13, 2000).]
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Nice!
Any idea how much they cost or who sells them?
Greg
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I think someone posted a groupbuy at the groupbuycenter on the AEM fuel products a little while ago...??
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John
B18C1 powered Civic EX Coupe
'92 Civic VX Hatch...waiting for H22A
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Hmm interesting.. From AEM web site, it says the fuel adjuster can go from the minimum of 20 psi..
Adjustable from 20 psi to maximum fuel pump capacity rating
I wonder if this unit can actually replace the combination of Stock Fuel Pressure Regulator + CommandFlow.
It seems this unit is so versatile that will make it much easier to dial down the fuel pressure if using the larger injectors.
The Cartech plus this unit is the way to go?
By all means, I am no pro in the fuel supply arena. Please correct me if I make any wrong assumptions or wrong information.
Thanks all.
Derek
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Derek: Your assumptions are correct.
With the OE FPR + B&M Commandflo, the lower limit of fuel pressure is determined by the fuel pump because the fuel outlet is small enough to be more restrictive than the FPR itself.
With aftermarket pumps, it can be impossible to get fuel pressures below 45psi or so. If the pump has a high flow rate, the lowest pressure achievable just increases. I've never seen pressures lower than 51psi on my car. (Walbro GSS-342)
The outlet on the FPR determines the lowest FP can go. Nothing the FPR spring/diaphram does can make pressure go lower than that.
When you add larger injectors into the mix, you need to get fuel pressure even lower to idle without being too rich.
The fact that the AEM FPR has interchangeable fuel outlets lets it work with high output pumps. You can put a larger outlet on to lower the lowest FP achieveable and return control of fuel pressure back to the FPR's spring/diaphram doohicky.
I'm 95% sure I'll be buying one of these. (Unless it's like $200!)
Greg
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It should do the job, but seriously, I wouldn't buy one for my application unless it was under $80 and somehow I don't think that's likely.
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rjaffey: Is that because you already have your custom "regulator bypass" mod? Would you recommend the unit for the rest of us who want to get rid of the stock regulator (just to lower fuel pressures)?
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I called AEM today. They gave me a distributor's phone number to call. The distributor told me they aren't available yet. He also said that he doubts that they will lower pressure more than a B&M modified stock one. I guess someone will have to buy one and see before I get my hopes up.
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Roughly $55 (less if I bothered to shop) + an hour's fabrication work doesn't add up to much over $80 as far as I'm concerned, especially if I enjoy the work.
But, Assuming the AEM regulator fits on the OE fuel rail or the JR adaptor (for those so equipped) without interfering with anything, it ought to work without much hassle, but YMMV. They're claiming it's suitable for 1000HP+ applications so it must flow a *lot* of fuel.
BTW, it retails for over $220.
[This message has been edited by rjaffey (edited September 14, 2000).]
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$220???
Ouch. Count me out.
Greg
