What injectors to use

[prj]

Get bigger than 441cc...
And yes, those specs should be okay, 441cc are Ford Motorsport injectors.

You can try 630cc dekas. Worst case - we'll run them with 3 bar fuel pressure.

[Thuppu]

Is't Deka 630cc at 3 bar?

How about BOSCH 52LB EV14 550cc/3bar, 630cc/4bar..?

[prj]

Yes, those 550cc@3bar should work with a 4 bar fpr.

EDIT:
Just make sure injector latency data is available for them.

[Thuppu]

Really difficult to find data of these Bosch EV14 injectors. But seems to be 12 Ohms(12.8-14.5 Ohms). Part number 0280158117.

[prj]

Uhm...



Yes?

Buy them, that's all the data one could ever need.

[Thuppu]

Haha, you found data. I was also looking at the boschdealer site but didn't find anything, maybe I should put my glasses on...

So, what does the data tell you?

[Jamo]

The 550cc EV14 will be fine.
But the 750cc - I don't think motronic has enough resolution for that to run at idle.

whats the minimium motronics can run, I have these injectors and they idle perfectly a 2 ms pulse width

[prj]

whats the minimium motronics can run, I have these injectors and they idle perfectly a 2 ms pulse width

2ms?
Stock 280cc injector idle is around 2ms.
Or are you taking in account injector lag time as well with that pulsewidth?

Haha, you found data. I was also looking at the boschdealer site but didn't find anything, maybe I should put my glasses on...

So, what does the data tell you?

It tells me injector latency at 4 bar for example, which is needed so that low pulsewidths work fine and the ECU injects as much fuel as it thinks it is injecting.

[Jamo]

That includes injector lag time, remember I have VEMS. I have seen these used on motronics also I can't see why there would be a problem these injectors work down to 0.8ms

[prj]

That includes injector lag time, remember I have VEMS. I have seen these used on motronics also I can't see why there would be a problem these injectors work down to 0.8ms

Which are "these"?
550cc will be fine.
630cc at 3 bar also afaik, above that porkkis can chime in on what problems he met if he likes.

It might be of course that we don't know what to change in Motronic to accept bigger injectors.
But even then, how far do you really want to go on the stock ECU? Anything much over 500 hp without antilag is quite useless.

[Thuppu]

The 750cc seems to have same part number(same data).

0280158117-750
0280158117-550

[prj]

The 750cc seems to have same part number(same data).

0280158117-750
0280158117-550

I do not think this is possible unless someone milled the injectors.
Different flow will have different part number from the factory.

[Thuppu]

Same electrical data?

[prj]

Same electrical data?

I would hazard a guess that your info is just wrong...

[Thuppu]

Yea, I don't know..? Same injector only bigger "bore"?

0280158117 (550)
0280158117-650
0280158117-750
0280158117-1000