Jump to content
SAU Community

Recommended Posts

What seems to be the max safe power limit of 1000cc injectors with e85 on a rb26?

Running stock rail pressure (stock fuel reg.)

It's weird cos some results show well over 400rwkw, others only mid to high 300kws

I know you won't be able to tell exactly how much, but are they good enough for around 380-400rwkw ?

Edited by SiR_RB
Link to comment
https://www.sau.com.au/forums/topic/413076-rb26-1000cc-injectors-with-e85/
Share on other sites

  • Replies 65
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

As long as your fuel pump is up to scratch, 400rwkw is just under safe limits for E85 on 1000cc injectors.

Easiest way to work it out is this: (keep in mind that this is factoring in all variables and should be considered as a safe estimate)

E85 -

Total cc's / 11 = whp (eg. 1000cc x 6 injectors = 6000cc / 11 = 545hp)

Pump 98 -

Total cc's / 8 = whp (eg. 1000cc x 6 injectors = 6000cc / 8 = 750hp)

Beautiful that's of great help !

Gonna run the new walbro e85 415lph pump with direct power feed and chunky cables

wont have an issue, they seem to be a good thing so far, used around 20-25 without issue. Nice and easy to fit dual intank in a GTR too for 500

+ kw setups.

seems like im on the right path....

a mate has some "bosch indy white" 1600cc injectors, they are low impedance/11mm top o-ring so should be direct fit, are they worth grabbing ?? his willing to give em to me for pretty cheap (of coarse im going to get them ultrasonicaly cleaned and flow tested before install plus new o-rings)

seems like im on the right path....

a mate has some "bosch indy white" 1600cc injectors, they are low impedance/11mm top o-ring so should be direct fit, are they worth grabbing ?? his willing to give em to me for pretty cheap (of coarse im going to get them ultrasonicaly cleaned and flow tested before install plus new o-rings)

Indy blue and whites are rubbish to tune with. I really don't think people know just how good the latest ev14 style injectors are. I wouldn't consider anything else if your looking at 1000's or above.

We have had some issues with the bosch EV14s lately and I know a big name shop who also has a box of dead ones they've pulled from a number of cars.

They've cost me an engine and almost lost a race engine for the other shop.

We have had some issues with the bosch EV14s lately and I know a big name shop who also has a box of dead ones they've pulled from a number of cars.

They've cost me an engine and almost lost a race engine for the other shop.

Were they cleaned and flowed before use?

Old ones were fine, most recent batch seem to work when they feel like it and lose random amounts of flow at random times.

Don't know what causes it, haven't really looked too far into it yet.

Were they cleaned and flowed before use?

We only buy matched sets with flow reports.

All the failures were with brand new units.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Bit of a pity we don't have good images of the back/front of the PCB ~ that said, I found a YT vid of a teardown to replace dicky clock switches, and got enough of a glimpse to realize this PCB is the front-end to a connected to what I'll call PCBA, and as such this is all digital on this PCB..ergo, battery voltage probably doesn't make an appearance here ; that is, I'd expect them to do something on PCBA wrt power conditioning for the adjustment/display/switch PCB.... ....given what's transpired..ie; some permutation of 12vdc on a 5vdc with or without correct polarity...would explain why the zener said "no" and exploded. The transistor Q5 (M33) is likely to be a digital switching transistor...that is, package has builtin bias resistors to ensure it saturates as soon as base threshold voltage is reached (minimal rise/fall time)....and wrt the question 'what else could've fried?' ....well, I know there's an MCU on this board (display, I/O at a guess), and you hope they isolated it from this scenario...I got my crayons out, it looks a bit like this...   ...not a lot to see, or rather, everything you'd like to see disappears down a via to the other side...base drive for the transistor comes from somewhere else, what this transistor is switching is somewhere else...but the zener circuit is exclusive to all this ~ it's providing a set voltage (current limited by the 1K3 resistor R19)...and disappears somewhere else down the via I marked V out ; if the errant voltage 'jumped' the diode in the millisecond before it exploded, whatever that V out via feeds may have seen a spike... ....I'll just imagine that Q5 was switched off at the time, thus no damage should've been done....but whatever that zener feeds has to be checked... HTH
    • I think Fitmit had some, have a look on there (theyre Australian as well)
    • Hah, fair enough! But if you learn with this one you can drive any other OEM manual. No modern luxury features like auto rev-matching or hillstart assist to give you a false sense of confidence. And a heavy car with not that much torque so it stalls easily. 
    • Actually, I'd say all three are the automatic option. Just the different trim levels. The manual would be RSFS, no? 
×
×
  • Create New...