i work at toyota. let me know if you want to get a fuel pump. maybe a group buy and we can get the really cheap. what do you guys think?
kris

 

hmmm, i will have to take a second look at the computer at work. i was bored one day and did check out the price on the supra pump. im sure i was well less than what jason sells it for. that wasnt even my price. like i said, i dont mind setting up a group buy if i can get my hands on one too for cheap. lets see how many people are interested and im sure my boss will not care at all. a sale is a sale. just keep in mind that the more oredered means more back ordered. i will get the final on this hopefully tomorrow, for sure monday. remember this is a brand spankin new OEM supra TT fuel pump. ill see what i can do for my fellow 7er's.
kris

 

walbro is definately the way to go.

 

Hmmmmmm! All this talk about the Supra pump makes me wonder if it's capable of flowing enough fuel for a 650rwhp 20b.

 

Here is my pump.....

 

I'm using the Supra TT pump. seems to be fine for my single turbo and 1600c inj. I have more power than any stock twin turbo set-up. Pump is reliable and available at any toyota dealer. Will support up to 500rwhp.

 

doesnt seem like anyone is interested in the fuel pumps. here is my suggestion for the time being. anyone who gets in contact with me by the 21st will get a killer deal on the pumps. now you might ask, "what is a killer deal". to answer that question i am selling all supra TT fuel pumps for 170+7.50 s/h. remember all you have to do is let me know you are interested and i will make the deal valid. anything after the 21st will be my normal price of 195+shipping. here is a number to get a hold of me at work.
209-725-9000. ask for kris of course. no one else will give you this deal. im only going to do this for a few days as i know that there is someone on this forum that might not want me to sell them for this price. also, all TRD and toyota parts can be yours for another killer deal if you call and ask(just in case you drive a toyota also).
kris
www.mercedtoyota.com

 

oh yeah, just to let you know...the OEM supra TT fuel pump is the same fuel pump as the nippondenso. dont be mislead
kris

 

I think Nippondenso dropped the 'Nippon' some time ago, so now the name is just Denso.

Also, the test of whether a fuel pump can support a certain amount of power or not is whether the fuel pressure drops near redline below the regulated level. It is possible to make 500 RWHP with a pump that is only "good" to 400 RWHP on the same car. You just lose control of the tuning, and run lean when the stereo is cranked up and the headlights are on. The moral of the story is: just because someone made 500 RWHP with a pump does not mean the pump is appropriate for making 500 RWHP in a controlled manner. The pump has to flow more than you need at the pressure your regulator wants, and then have a little extra room for when the voltage is low from headlights and crap being on.

And different cars reach different HP levels at different fuel pressures. The question is really "how much can the pump flow at my intended maximum pressure?". To make sense of the answer, you need to know how much you need it to flow and how much pressure you will be running. The fuel requirements web page I made is supposed to help with that:

http://www.maxcooper.com/rx7/how-to/...tem/calcs.html

I think a fair number of cars run beyond the limits of their fuel pumps, and just mask the problem with abnormally high injector duty cycles at high RPM/boost. It works, but you don't get consistent results and it isn't a very good strategy from a reliability standpoint. I don't really know this for sure, but I suspect that it is true.

-Max

 

i just went with the cosmo pump. direct replacement, mazda oem, supports 500rwhp, and it was in stock.

 

gruppe-s.com has good prices on walbros

 

So is anyone going to vote on the poll so we don't have to read through all the posts?

 

Did anyone else have to tweak the Supra Denso.. I found that my plastic collar couldnt seat all of the way on the supra pump... I had to trim away some of the plastic name plate on the top of the pump to get it to fit... all in all, it was a very simple install, just curious that no-one else had posted about this.

X

 

The supra tt pump gets my vote... it is a denso... so is the stock pump, so you can't compare by name alone. The supra pump pulls more current, and spins faster. the cosmo pump is also a denso, but falls somewhere in the 13btt and the 2jzgte(supra tt pump). be sure to pick up the filter pickup, and the clip that holds it onto the pump. the boot for the supra pump is less prone to sucking air at low fuel levels. btw, it flows much more than the walbro... if you want to go more than 500rwhp, look into dual pumps.. you could do 2 walbros.. the're smaller and cheaper, and would probably do over 700-750rwhp if you have a second -6 an line for the 2nd pump, and carry it all the way to the fuel rails. Don't try to run over 500rwhp or so using the stock line alone. I have pics of installing a supra pump if anyone wants to host.. also, you can get the pump, boot, and clip for about 190 shipped from jay marks toyota in tx.

 

cover off

 

stock pump left.. supra tt right

 

the supra pump hooked up and ready to go in

 

the open hole it's going into....

 

installed, and covered back up

 

Walbro on the bottom, Bosch on the top.

 

is retunning the ecu necessary when installing an upgraded fuel pump?

 

Not if you set fuel pressure to the same level the tuning was done with.

 

i got my walbro from patrick at www.precisionte.com for like $120 shipped. i ordered the wrong one first for a supra (different hardware kit) and it was $98 shipped

 

and how do you set the fuel pressure without actually tunning the ecu? I have a pfc...

 

Are you sure you should be operating on your fuel system?

If you have the stock fuel pressure regulator, then you will have the same fuel pressure with the new pump as you did with the old pump. Excess pressure is "bled off" and returned to the tank. If you add an aftermarket rising rate fuel pressure regulator, you'll have to set line pressure and use a rising rate model so that the fuel pressure will rise with boost.