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Old 05-17-2009, 02:54 PM   #1
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Default Hyper is at it again.

It starts with this post at Miata.net: MX-5 Miata Forum - Need info on NB aftermarket FPR for 2001NB

After posting what I thought was a very helpful reply, I received this PM:
Quote:
Originally Posted by Hyper
I am working on a new fuel cooling concept and I need to gather all the info I can get for this project. . If I am not clear, please let me know, my english sucks.

I need to know what is the fuel pressure before the dampener and after the dampener and what would be the best location to install a fuel pressure gauge, my gauge goes all the way to 100psi. I also need to know more details on the OEM pulsation dampener, thanks.

I rather keep the project undisclosed to the forum until I do some testing of the concept on 1st Florida Dyno day, June 6th. Are you coming?
A new fuel cooling concept? I'm at a loss for words...
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Old 05-17-2009, 03:05 PM   #2
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Can you add the Orig. avitar with the burrly guy holding his package. That cracked me up for days.
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Old 05-17-2009, 03:33 PM   #3
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You never heard of intercoolers for fuel systems joe? Geez
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Old 05-17-2009, 03:38 PM   #4
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I'm surprised he didn't just wind his fuel line around his revolutionary coolant reroute. That should cool down the fuel, right?
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Old 05-17-2009, 03:43 PM   #5
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Actually guys he's also working on another top secret project that eliminates all emissions on our cars. Cant really disclose all the details as it is far too complex for you simpletons, but here is a sneak peak at the model:
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Old 05-17-2009, 03:54 PM   #6
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I've been looking at that diagram for 10 minutes and can't figure out how the FPR inside the tank works... maybe it recirculates directly at the pump? The dampner is an easy concept... it just smoothes out minor fluctuations in pressure... fluctuations I would think primarily due to variances in voltage reaching the pump?

Can somebody "paint" on that diagram the actual fuel flow please?
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Old 05-17-2009, 03:55 PM   #7
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That just blew my mind. After I laughed for a good 5 minutes.
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Old 05-17-2009, 04:00 PM   #8
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I am having second thoughts on my post.. the FPR would be on the return side, at the pump. Correct?
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Old 05-17-2009, 04:05 PM   #9
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Quote:
Originally Posted by FRT_Fun View Post
I am having second thoughts on my post.. the FPR would be on the return side, at the pump. Correct?
The FPR is essentially on a tee, such that it bleeds fuel out of the supply line (right after the pump) and dumps it straight out into the tank.

There is no return line on the NB's fuel system.


Last edited by Joe Perez; 05-19-2009 at 09:00 AM.
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Old 05-17-2009, 04:32 PM   #10
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Wouldn't it be smarter to have a fuel heater...to aid in atomization. Hyper is a ******* idiot.
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Old 05-17-2009, 04:53 PM   #11
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nah man cooler fuel runs better.
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Old 05-17-2009, 05:01 PM   #12
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Want to know how I know you were picked on a lot in high school, Joe?
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Old 05-17-2009, 05:04 PM   #13
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I love how he is always working on concepts, but needs everyones help for the most basic of info. If you don't know **** about a fuel system, how are you going to work on a "fuel cooling concept"...

A side note, some of my dads old crazy friends used to take copper tubing and route the fuel near the exhaust to warm it up, and they claimed actually being able to tell a difference. Damn fools though.
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Old 05-17-2009, 05:46 PM   #14
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commercial fuel coolers are actually available, they look just like small transmission coolers, Musclecar guys I've talked to said they can reduce detonation/ping and increase power, and I've also read that one of the big reasons the NA fuel system was redesigned for the NB was due to high temperatures in the fuel tank, so there may be something to it I just havent looked into it, but when you can use something like a small transmission cooler I dont see why it needs to be hyper-ized.
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Old 05-17-2009, 06:14 PM   #15
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Old 05-17-2009, 06:33 PM   #16
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Quote:
Originally Posted by Joe Perez View Post
The FPR is essentially on a tee, such that it bleeds fuel out of the supply line (right after the pump) and dumps it straight out into the tank.

There is no return line on the NB's fuel system.

[img]http://img30.picoodle.com/img/img30/2/5/17/thraddax/f_NBPUMPm_149094d.gif[/im]
threadjack a little onto something more useful:
I'm redoing my fuel lines soon and I have an AFPR, could I just relocate it near the fuel tank and follow joe's diagram so that I could eliminate my return line, or is the nb fuel pump different and operate in a different way?
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Old 05-17-2009, 06:36 PM   #17
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Quote:
Originally Posted by N3v View Post
could I just relocate it near the fuel tank and follow joe's diagram so that I could eliminate my return line, or is the nb fuel pump different and operate in a different way?
The NB design actually creates some problems when significantly increasing power. With the FPR at the back, pressure drop across the system is not compensated for. It's better to keep the FPR at the front and retain the return line.
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Old 05-17-2009, 10:38 PM   #18
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I don't think the gains of cool or hot fuel would be enough to even waste my time thinking of how to manuver my lines around.

Hyper is stupid.
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Old 05-17-2009, 10:56 PM   #19
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I've heard arguments made for both heating and cooling of fuel. I have never, however, heard any hard numbers one way or the other wherein the temperature of the fuel was correlated to HP or whatever, without any confounding variables messing up the deal. Maybe one way or the other makes a difference, maybe it doesn't, but I somehow doubt that it'd be too significant or we'd see fuel heating/cooling devices on more racing cars and whatnot. Hell, if it was that easy/cheap to increase performance, we'd see it on street cars.

I actually feel bad for Hyper. Kind of. I mean, he comes up with these weird *** ideas (hey, I've had my share, and then some) but he has no idea WTF he's talking about/what's going on. I mean, if he spent half the time actually READING and LEARNING about the systems he's talking about as he does figuring out how to "improve" them, he'd maybe actually know how they work.

Ok, so he deserves ridicule. He's just one of those people that I want to smack and see if they wake the hell up.
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Old 05-17-2009, 11:05 PM   #20
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Quote:
Originally Posted by deliverator View Post
Want to know how I know you were picked on a lot in high school, Joe?
I'll bite.
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