See post #21.

You forgot to post the link.

It was a nerd joke. By telling Scott to see post #21 from within post #21, I created a recursive loop.

you're such a fascist

You got it wrong, check this out.

https://www.miataturbo.net/showpost.php?p=803588

:bowrofl:

Very clever. I wasn't even thinking in that direction.

I didn't mean to start an arguement with this thread, I just like to think of different ways to accomplish the same goal. My thought process was basically this-

Creating a full return system requires either modifying the existing rail or installing a different one, an afpr, and all the necessary plastic fuel line.

A dual pump setup requires you to plumb the FMU between the existing pump and fuel rail. Then loop the FMU around the inline, so the inlet of the FMU branches off from the fuel line after the inline pump and the return of the FMU branches off just before the inline. (stole from :brain:)

A boost-a-pump requires the unit and tapping into one wire at the pump.

Now, the first two methods are well tested and work great, but maybe the third method will work as well, and seems to be much cheaper and easier to install. (600hp blown mustangs and vettes use them.)

I have the powertrain out of the mazda at the moment so any of the above would be cake. Still thinking it over.....

Honestly, I've already been accused of being closed-minded twice today, and I have no empirical evidence that over-volting the stock fuel pump in lieu of installing a more traditional form of engine management will result in either the failure of the fuel pump or the destruction of the engine due to an overly lean mixture in boost.

So I retract everything I've posted in this thread.

Wanna hug it out bro? :makeout:

I thought the "Bro" talk was banned.

A well known tuner/shop recently installed the kb boost-a-pump onto his built big power sti and did testing.

the pump (a wally 255 iirc) died after a few weeks and he leaned out like crazy....don't remember if he broke anything in the process.

the point is, some things are just not worth trying to work around. like good engine management....*hint hint*

Why couldn't you do something like FM's big fuel kit and remove the stock in tank FPR and place a AFPR near the tank with only one big line to the engine bay. It's not a "proper" return system but you could adjust the fuel pressure to whatever you want. I suppose you could even skip upgrading the line to the engine bay to keep things simple.

See here: http://flyinmiata.com/index.php?dept...umber=04-46150

And a picture here: http://flyinmiata.com/Store/images/04-46150a.jpg

EDIT: Looking at this post (http://forum.miata.net/vb/showpost.p...0&postcount=16) and reading FM's description again, the APFR would be located near the stock fuel filter.