Hello guys,

I've been runing 50/50 E85 for the past 2 years, more and you have a warning light (lean bla bla bla)

But, even if cold start are not so much an issue, you can clearly sens when driving some loss arround 3000 ...

Last friday, I installed a "kit" from a collegue, we added 15% increase timing and according to his own app, I hit 100% duty cycle at about 5500 and its homemade electronic kind of "cut" the power like a limitor ..
Ironicly, the car seems to be fine at 6XXX rpm without the +15% kit .. so on monday I will have a talk with him to clear things up.

BUT, the care feel so much better arround 3000 RPM ...

So, i'd like to change my injectors, I'm completly lost after a few hours on the internet on how much injector there is out there, and every one of them seems to be different in shape ....

The stilo have
0 280 155 770
3 bar, 137 g/min
14,5 Ohm

And they are hold but the fuel ramp..

Can someone help me ?

Can you give measurements of lenght and diameters of injectors ?

I need to dismount one, or buy a cheap spare one, I'll do that asap

edit: with the picture below and the measurement of the cap from the fuel rail I should be able to do a good estimation

In a mean time, here a few pics when I tried to do that 1 year ago ..

I dirst discovered that buying a EV6E bosch do not mean to have the same geometry ...

The red one is
0 280 155 940, and as you can see is too short
but it was 14.5ohm and 158.3g/min (it was to stay compatible with SP fuel)

ok so, I've estimated some size ..

See picture

You need to get ev14l bosch units although please consider the size on your own as what you need .
Something like this can be a little too much
https://www.gameonmotorsports.com.au/bosch-fuel-injector-550cc-ev14-long-length
But i think that you should hop it up from 150 to 250cc minimum ,cause its not good running your injectors on 100% duty cycle all the time.

Yeah, ~200cc what I have currently, I would need 30% more ..

Thanks, I'll take a look

flyingdutch

What do you think of that ?

Green is the original ones !

Nevermind ... GTA 3.2L injector ..

I think I'm good to go ..

Good although if i were you i would possibly get 300 cc or bigger just in case

300cc is a lot .. it is a 50% increase when for E85 I would only need about 30% more ..

Nice research baykah?

Certainly helped me to learn more about injectors types and sizes.
I am just wondering what power you are making on your motor?
Because standard injectors still work to a proven 177kw

Yes of course they would work to 177kw but the thing is that running yhem on 177kw will set duty cycle on 100% which means that they would be spraying fuel instead of squirting and then you get a really bad fuel mixture inside the chamber .

I'm stock, 170PS

But, I'm currently 50/50 ethanol / fuel

Theory is, 100% ethanol is +30% fuel increase for the same power.

When I pass 50% the ECU detect a problem, and there is some power loss mid RPM range you can clearly feel.

Last week, we added an electronic device that added +15% in cylinder injection time. This cured the problem in mid range, however I am now unable to go past 5500RPM
My collegue device is indicating 100% dutycyle, maybe other E85 kit manage this better and allow full range.

The other solution is to mount bigger injector, so with those +25% I should be able to go 100% E85 and let the ECU + Lamba do its thing for proper engine running with minimal cost and work on the engine !

Only the cold startup will stay a problem, but I live in south france, It should work ...

I've contacted supplier on alibaba to get cheap quote

Thank you baykah for the explanation, it make sense now and is logical.

Are there a spesific reason you are running with ethanol?
As I have just googled and read that ethanol is very corrosive and will damage your fuel system, especially your fuel pump.

Yeah you can read a lot of things about ethanol ..

it is 0.6€ / L

SP95E10 (10% ethanol) is arround 1.50€ / L

(but there is a 20/30% more consumption with E85, still cheaper )


This morning car was awfull, jerky first gear ... I did change EV0 last spring ...

I've changed the injectors today

It is working =)