Ok, i right now wondering if my fuel setup is good enought for my turbo.

I don`t plan to boost more than 1.2 bar

Streetported 13BT
E6K
injectors :
2x 680
2x 1600

45psi of fuel pressure

fuel pump - 255lph high pressure walbro
fuel filter - stock FC
fuel lines - stock FC

Is this safe and if not, what should be upgraded and whats suggested replacement part?

thanks

 

My experience is NO!

If your set-up happens to flow well you will need more fuel. Don't take the chance.

My Stock S5 hybrid (clipped P trim exhaust, 60-1 Hi Fi compressor) was maxing out (100% injector duty cylcle) my 720cc and 1600cc w/ walbro high pressure 255 and stock FC lines and new stock filter ruinning to parrallel -6AN sytem and dual port regulator at 45psi base anything over 1 bar boost.

Use the Bosch 044 pump as it can handle the high pressures at the pump caused by the pressure drop of restrictive stock lines and filter. Or upgrade to larger lines and filter.

 

OK, i this 044 bosch pump is Inline, could it be mounted Intank???

 

I have the same save for 850 primaries and stock ports. At 15 psi I'm fine. YMMV of course.

 

I would suggest using the Toyota Supra aka, Nippon Denso fuel pump.

 

0.44 is for external use .

 

Here someone does have it intank in FD

http://www.mantissaconsulting.com/et...uel_system.htm

 

Intank bosh 044

http://www.modyourcar.com.au/product...oducts_id=3058

 

To me it seems to be one pump we are talking about (could be used both outside and inside)

 

the kenne bell boost a pump is an attractive option versus a huge fuel pump.

a sensor triggers the unit into action as you reach positive turbo boost and it juices your pump with an easily adjustable zero to 50% increase in voltage.

Kenne Bell pioneered the product over 30 years ago and i strongly suggest you visit their engineering rich website to get all your questions answered.

i have run it for 2 years w 850s and 1600s and my cosmo pump. i love it.

i think it beats running a huge pump as it doesn't constantly recycle gas to the motor and tank which results in warmer gas. msd makes a similar product. i looked at both and bought the original.

$200.

howard coleman

 

I think the boost a-pumps are a good idea, but

NOT WITH A WALBRO

There have been SEVERAL documented cases of Walbro 255 high pressure pumps failing on the streets, dynos and track. I have read online and in magazines. Check the DSM forums as well as they use these pumps fairly commonly.

Adding voltage will just stress the pump more.

 

Bosch approves these for in and out of tank installations.

Gene

 

Currently I have (with the gt35r kit0
- SX FpR
- 850 Primaries
- 1600 Secondaries
- Supra Pump

On a 4th gear pull to 7200 on the dyno my IDC got up to 88%...

I am getting ready to strap a stock pump to my supra pump and "Y" them together in tank.

I was told that with my setup the supra pump would be sufficient for 425rwhp...My dyno pull mentioned above was 381 @16psi tuned pig rich between 10.1 - 10.3.

I am not sure how much the IDC will come down by just tuning leaner to 11.4 - 11.5...Carl on here said that my IDC with my fuel setup shouldn't be that high (88%)...So I am not too sure what is going on myself. But in the next month or so I am going for another tune with HKS TP, dual intank pumps and shooting for 18psi tune at 11.4

 

Ok, my 044 Bosch pump came in today, cost me 141 GBP including shipping from UK to CZ ;o)

Now i have to figure out mounting in FC fuel tank and pickup sock.

 

bit of rocket science done

 

Holy ****...what is that pump? I want it! screw that Y-ing together 2 pumps BS...

Did you have to rewire anything?

 

maybe surge's pump was worn out but he had the same one and it suked bad....

 

I use to run the 044 pump inside my tank, now I'm running 2 GTR fuel pumps.

 

How hard was it to source the GTR pumps? Also, how much did those two pumps cost?

Zach

 

hIGGI,

Pump install looks great, but just a suggestion..... replace those plastic zip ties with metal hose clamps. It would suck if those plastic ties deteriated and the pump went loose in your tank. :O

~Mike.............

 

Somewhere before was stated pumpu should be isolated from bracket, thus plastic zip ties. If it will get loose, it should be to hard to find it in fuel tank

 

So use metal clamps with some rubber for isolation. I wouldn't trust a couple of zip ties to hold the pump.

-Max

 

Estimate your fuel system capacity here:
http://maxcooper.com/rx7/how-to/fuel_system/calcs.html

If you are maxing out 2x680 + 2x1684 injectors, you are making some huge HP. If you are experiencing high duty cycles and not making big power. it is likely that your pump is inadequate and losing pressure (bad -- your tuning will change when you turn the stereo up or turn the headlights on since it now depends on electrical load rather than the FPR).

-max

 

We use zip ties to build cars here

(ok, i`ll check it out and see how to do it better)

 

I use a pair of '044 , excellent pump.