Changing From Side Feed To Top Feed

[Adz2332]

Hey all

Have a r33 GTST series 2 track car.

Just bought a plazmaman Plenum and a HTA3076r turbo.

Changing injectors and fuel pump at the moment. And will be running E85

Im going for some 1150cc Bosch injectors and walbro e85 pump.

My question is, is it as easy as just buying a plazmaman top feed fuel rail and bolting it on to change from side feed to top feed, for the injectors?

Or is there more to it?

Any advice?

Is the Plazmaman fuel rail a good bit of kit? or anything that would be better?

Cheers

[scotty nm35]

There are plenty of fuel rail kits out there, Plasmaman being on of the more expensive ones. I guess you are guaranteed it will fit under the plenum, although I usually recommend the Proflow ones since they modified them slightly to fit the RB25 better.

What the hell is a 1150cc Bosch injector? Seems every supplier is bumping the flow numbers just to make their stock sound better. At what pressure does it flow 1150cc? I assume we are talking about 1000cc EV14's here? If you are running e85 have you looked at the injectors designed for that? (Xspurt 1400's and ID1300's)

[Adz2332]

thanks mate.

Will have a look at a proflow ones. do they have a website?

Umm the injectors is bought here from a business trader.... 1150cc BOSCH injectors, E85 compatible

Edited May 23, 2014 by Adz2332

[scotty nm35]

Fair enough. Perhaps the business trader will give you some good advice then.

[Ben C34]

They flow that at 4 bar.

[Adz2332]

is this the proflow your referring to? http://www.proflow.com.au/

happily take advice?

[Ben C34]

So to clarify you have 1000cc inhectors

[Adz2332]

well, they suggested 1000cc injectors, i asked for something slightly larger and they said bosch also have 1150cc injectors?

Have i been led up the garden path?

[Blackkers]

Have you bought them already? They should do the job. If you have the 1000ccs there's no need to worry.

If you haven't then have a look at the stainless internal options

[Adz2332]

i have only part paid for them at the moment.

But im more not happy if the trader has said they are bigger then the 1000cc ones, plus paying slightly extra when they are 1000cc ones. plus they claim them to be good for e85

[Ben C34]

i have only part paid for them at the moment.

But im more not happy if the trader has said they are bigger then the 1000cc ones, plus paying slightly extra when they are 1000cc ones. plus they claim them to be good for e85

The injectors I have seen that care 1150cc are at 5bar pressure.

Ask them at what pressure they flow the claimed amount?

If you look at the id1000 injectors for example, they flow pretty much bang on 1150 at 5 bar.

Edited May 23, 2014 by Ben C34

[Adz2332]

from the trader...

The EV14 BOSCH injectors are the most popular on the market today, come in 550cc, 725cc, 1000cc, 1150cc.

[Ben C34]

There's also guys that sell the ealbro pumps and list the highest flow number (lowest pressure) to make them seem better.

[Adz2332]

would i be better off spending a little less and just getting the 1000cc injectors?

[Adz2332]

bosch*

[Ben C34]

They seem like the same injector to me.

Just with higher pressure

[Ben C34]

ID1000 Dynamic Flow Data

Fuel Pressure Offset Slope

(psid) (µsec) (cc/min)

8 Volts 10 Volts 12 Volts 14 Volts 16 Volts

40.0 2485 1630 1210 970 800 980

43.5 2600 1675 1240 990 805 1015

45.0 2720 1705 1295 1000 810 1035

50.0 2855 1750 1355 1025 815 1085

55.0 3015 1815 1400 1055 820 1135

60.0 3195 1880 1440 1080 845 1180

65.0 3370 1960 1485 1100 880 1225

70.0 3550 2050 1530 1125 925 1265

75.0 N/A 2155 1580 1155 975 1305

80.0 N/A 2280 1625 1195 1020 1345

85.0 N/A 2435 1675 1245 1060 1390

90.0 N/A 2610 1725 1305 1095 1435

95.0 N/A 2800 1775 1370 1125 1485

100.0 N/A 2995 1855 1440 1155 1530

[Ben C34]

That came out shit (on mu phone)

Look at the left column for pressure and the bright column for flow.

5 bar is pretty much 58psi.

3 bar is 43.5 which is the standard when specifying flow.

Edited May 23, 2014 by Ben C34

[Adz2332]

Thanks mate.

I know my GTR has 1000cc Bosch injectors and has been running E85 for a year and a half now. makes 389kws at the 4s. Im unsure of the head room of the injectors.

The gtst will hopefully make around that mark also. So for what your saying for the set up the 1000ccs and the 1150ccs are either the same injector or on a normal set up will flow the same?

bosch is ok with e85 tho correct? with stainless insides?

[Ben C34]

Yep. That's right. At stock pressure both would flow 1000.

And obviously they are fine with ethanol.

It really seems like bullshit to me.