Bosch EV14 Fuel Injector

[s4andtls]

Would a 52 or 72 be recommended for my 605 build. I've been researching for a while and still unsure. Also-is this the injector of choice or another brand. Last-does anyone have some for sale. Thanks

[infinkc]

I would probably run 72lb on a 3bar regulator.

cheapest ive seen the 52 lbs are $229 for 8 of them from http://www.blueovalindustries.com/en7700.html
and ebay for the 72lb ones

you also need adapters which are a few $ also.

[Hyphy]

Curious to know this as well. Why would one choose these over let's say Siemens?

[S4James]

because its diffiult to get the seimens to idle well.

[034Motorsport]

Would a 52 or 72 be recommended for my 605 build. I've been researching for a while and still unsure. Also-is this the injector of choice or another brand. Last-does anyone have some for sale. Thanks

Entirely dependent on what tuning you are going for, and what kind of power you are going for.

EV14 550cc injectors run @ the stock 4BAR fuel pressure is enough to produce over 450whp with 605's, especially on 93 octane. If you are on a stock motor, you won't be wanting to go more then that anyways. 550cc injectors for K04's is way overkill, but they have such a nice spray pattern they work great at low power and low pressure.

However, I would go 750cc if you have rods or will be running more then 25psi. The disadvantage is slightly less resolution in the control of spray with larger injectors at very low pulse. However, even the 72lb EV14 idle quite well. 72lb @ 4 BAR is enough to produce way way more power then you'll ever use, but it is nice to have a low IDC (duty cycle) and easier on your pump (lower rail pressure means more flow from pump).

In the end, it will be dependent on your tuning. 85mm Hitachi MAF housing? 52lb/550cc EV14. Big Turbo MAF housing? 72lb/750cc EV14. If you want to run E85, you'll need to knock it up another step as well, since much more fuel is required.

[s4andtls]

Well Max I'm actually ordering the r605 from you. No rods, 23psi max, but- meth, 90 maf

[Tony@EPL]

I would probably run 72lb on a 3bar regulator.

cheapest ive seen the 52 lbs are $229 for 8 of them from http://www.blueovalindustries.com/en7700.html
and ebay for the 72lb ones

you also need adapters which are a few $ also.

Here is the problem, notice the 11-18 ohm rating. there are ev14's with 8-11 ohms, there are first quality and second quality, there are for heavy machinery use only, ford motorsports, bosch motorsports...etc etc. EV14 is used WAY to openly as a term for injector. Its should be used for the body type only and not a description of the injector itself.

The injector listed above is not compatible with any epl tune. Sure it will run, and actually run fairly well... but there will just be something missing.

[01xSilverS4]

because its diffiult to get the seimens to idle well.

^LOL. That's exactly what my tuner said

[S4James]

I know 4 cars locally with these stupid injectors, all of them miss like crazy at idle, including mine. One guy got his dialed in very well after a lot of fiddling with meastro. but the rest of us, miss miss miss... i gota convert these things to the EVs

[julex]

I am running 1000cc Ev14s with 3bar which is worst configuration for idling by far and I am smooth like a butter... except for just one cylinder misfiring occasionally (once per 10s maybe when it misfires at all) but that doesn't affect anythign, RPMs are perfect and sound too.

550cc Ev14s I had before were super smooth, I would strongly advise these.

Siemens dekas were complete crap. I could not for the love of god make them run smooth no matter what. Their spray pattern is just not right for our heads. The other problem they have is their accuracy at the pulse width required with our stock 4bar FPR. We are on a ragged edge of a cliff where they just get decent at around 5% of error at 1.5ms pulse width which is what we need for idling. But that's not where you want to live. If you ECU calls for sub 1.5ms pulse, the dekas spray essentially random amount off fuel and that's where idling issues appear:

[NOTORIOUS VR]

I am running 1000cc Ev14s with 3bar which is worst configuration for idling by far and I am smooth like a butter... except for just one cylinder misfiring occasionally (once per 10s maybe when it misfires at all) but that doesn't affect anythign, RPMs are perfect and sound too.

x2 I am running my ID1000's @ 4 BAR (~1170cc) and my idle is butter smooth as well with a very slight miss on #5 once in a blue moon.

550cc Ev14s I had before were super smooth, I would strongly advise these.

Their spray pattern is just not right for our heads. The other problem they have is their accuracy at the pulse width required with our stock 4bar FPR.

But this ^^^ is not true. I ran a flow matched set of 630cc @ 4 BAR on my friends S4 on stand alone and they were butter smooth as well... Running Lambda 1 around 700 RPM @ 1.2-1.3 ms if I recall. I honestly believe it is just something about the Siemens and ME7. The 630cc injectors aren't bad in other setups.

[Sole_]

Make sure if you have the shorter EV14s to get the injector hats from 034 ask Max he's awesome. Remember Sacha ;)

[034Motorsport]

I honestly believe it is just something about the Siemens and ME7. The 630cc injectors aren't bad in other setups.

I've seen a couple ME7 Siemens cars idle well. Out of tons of them that don't. And I totally agree; they can run just great on our 034EFI standalone, or another system, or other vehicles. But yeah, super finicky with ME7, and the EV14 55lb injectors are definitely superior.

As Tony also mentioned, not all EV14 are created equally, which is why you should buy them from a legit tuner and not from eBay to save $100.

[badbiturbo]

So as far as a PJ K04 setup, would you recommend running these over Green Giants?

[NOTORIOUS VR]

So as far as a PJ K04 setup, would you recommend running these over Green Giants?

I'm going to assume if you're looking at the Green Giants you're not looking to push your setup too far... but if you're looking to push your K04 setup hard you should go with an EV14 setup... the 550cc's @ 4 BAR are big enough for most hard core K04 setups as long as you're not planning on E85.

But in reality, you should be asking these questions to your tuner as they will be able to tell you what to do.

[034Motorsport]

But in reality, you should be asking these questions to your tuner as they will be able to tell you what to do.

This!

[badbiturbo]

I'm going to assume if you're looking at the Green Giants you're not looking to push your setup too far... but if you're looking to push your K04 setup hard you should go with an EV14 setup... the 550cc's @ 4 BAR are big enough for most hard core K04 setups as long as you're not planning on E85.

But in reality, you should be asking these questions to your tuner as they will be able to tell you what to do.

Thanks, I would definitley be looking to push it on 100 if I decide to go with K04's, ive heard alot of good things about the Bosch EV's

[julex]

But this ^^^ is not true. I ran a flow matched set of 630cc @ 4 BAR on my friends S4 on stand alone and they were butter smooth as well... Running Lambda 1 around 700 RPM @ 1.2-1.3 ms if I recall. I honestly believe it is just something about the Siemens and ME7. The 630cc injectors aren't bad in other setups.

You had a flow matched set which means that they probably had similar deviation in sub 1.5ms pulsewidth. Siemen's remarks on that "cut off" are probably pertaining to a set of injectors which were just taken out of the box without any flow matching... oh yeah, and siemens injectors are "certified" out of factory to be -+6% of nominal flow while Bosch, if I recall right, are -+2%... this is probably why people have better results with bosch when non-matched cheap set is bought.

[jibberjive]

I'd go with a smaller injector at a higher base pressure over a bigger injector at a low base pressure (this is assuming that the smaller injectors aren't at too high of an IDC and assuming that your fuel pump can keep up with the higher pressure), for better atomization. So I vote 550cc at 4 bar.

Here is an interesting video that easily visualizes what I'm saying with these type of injectors. The EV14's are rated to 7bar. 42psi at the beginning in the video is 3 bar.

[julex]

You hit the nail on its head. The reason why I am running at 3bar is purely because of fuel pump consideration. While it is possible to run larger turbos at high boost @ 3bar on couple of single pumps available on market, it is really borderline @ 4bar.

[badbiturbo]

Great video, I want an injector flow bench or Christmas! lol