There are a **** load of them on Ebay and am wondering if they either:

A) Really Suck
B) Over Stocked

Considering I can get one for $82, and I plan to stay with the twins or upgraded twins, $82 seems really tempting

 

Probably just over stock

I've had mine for probably 5 months maybe now and my car runs better than ever.

 

The Buick GN guys mostly run these. They have no problems and it's enough pump to push those bricks down into the 12's and lower. I have one in our project car, works great.

 

I heard enough horror stories (mainly from Mustang guys) that I switched in a nippondenso one. Plus, the little buggers are so small . Maybe run two of them?

 

some did a test...the nippondenso's flow much better.
I too have read some stories about the whalbro

 

The whalbro is cheep but I went with the nippondenso for piece of mind. It was a direct replacement for the stock one. I have also heard things about the whalbro failing when you need it the most, i.e. WOT.

 

I think it was the other way around...

http://www.wvinter.net/~flanham/wlan...l/fuelfaq.html

 

i stand corrected...but i did read that somewhere..maybe lightening in a world of thunder

 

I've got a walbro & a K&N fuel filter. SOMETHING is seriously wrong! My AF is fine up to 6K then it goes way lean & the more volume I try to flow (IE higher inj duty) the worse it gets.

I'm done screwing around & will be going with Aeromotive pump & filters. I'll probably do the pump controller & FPR as well, first things first.

 

Did you notice this section?

 

cosmo refers to nippondenso right

 

Despite all the good things I've heard about the Walbro, I'd still (and will be) go with the Bosch pump for sheer size. The more surface area it has, the cooler it's going to run, all things being equal, and the Bosch certainly wins there...

 

Yes.

 

Ive been advised against the walbro too... Although ive never had any problems in personal expeirences... However an extra 50-75$$ for that kind of peace of mind.... I just dont know

 

Whoops...thx for the heads-up, Jim. I just posted the link based on my favourites...haven't read it recently. But, yeah, the Bosch pump from Rippie seems the best option...still a decent price too.

 

If it hadn't been in CAPS, I probably would have missed it to. I've seen that page several times and never seen the retraction about the Cosmo pump being right up there with the Walbro.

I'll be running two Rippie pumps, and probably the Aeromotive "fuel computer". It does basically the same thing the stock fuel pump resistor did (which is long gone) and drops voltage to the pump(s) below X rpm, but it is programmable.

http://216.242.145.16/products/product.phtml?p=31

I hate to run more electronic gadgets than I have to, but I also don't want to be running two pumps full volume all the time, either.

 

walbro's suck

i bought that p.o.s pump last year, it over heated and locked up when i installed it. i switched to a nippon denso supra pump.

 

don't tell me that, i JUST put mine in 2 hours ago. getting ready to take it to gotham racing next week (the 5th) for single upgrade and fmic etc

 

I think I'm gonna jump on one.

I just went through Max's neat little fuel calculator at http://www.maxcooper.com/rx7/how-to/...tem/calcs.html

and for what I plan to run, it seems to be just fine.

I understand the fact that every once in a while, someone is bound to get a deffective unit. I'll just make sure to run it for a while before I boost.

 

Has anyone seen the chart on this site?

http://www.stealth316.com/2-fuelpumpguide.htm

 

rumors.... all heresay... only the dealers push the rumors..

 

I've been running the Walbro for 2+years with not a single problem, plenty of roadrace/drag and daily driving. Es, when's the last time you changed your fuel filter?

 

Anyone using the RP fuel pump? What's in a replica of? How's it stack up?

 

The RP fuel pump is the Nippon Denso cosmo pump (or the TT Supra pump).

 

Did you guys all catch this? Using Max Cooper's site link above, and this link that Flybye provided you can check to make sure your fuel system can handle the demands you're placing upon it.

Using Max's site, I have enough injector (850s and 1300s) to support 444 rwhp at 85% duty cycle.

I also need a pump that will flow 211 L/hr at 72 psi.

Checking the link in Flybye's post and scrolling all the way to the table at the bottom, I find that my Supra TT pump will flow 232 L/hr at 13.5 volts and 70 psi. At 75 psi it does drop quite a bit, to 209.

Based up on all of this, I have more than enough injector for my current setup. What I need to do is verify the voltage through the pump, and look into using some thicker gauge wiring and upping the voltage a bit. It would appear that the pump is sufficient for my current needs (400 to the ground) but I'd like a bit more margin for error.

Now, I'm no expert with this stuff, but this is how my little brain interprets it all . Would anyone like to piggyback on this?