Evo 560 Latency Values

[ChargerX3]

Interesting read. Might try changing mine up now.

[Jimvr4]

I have the 2 nozzle type and the HlxDrummer values so I'm good

[Unlogic]

Strange but it turns out, at least for me, having the MDL560P model (INP-401) injectors that the higher latency table worked extremely better than the supposedly correct lower latency table in my Chrome ECU ROM.
With J. Fast lower rpm bogged badly but with HLxDrummer it was way better with no bogging. Even the idle seemed improved. Go figure????????

Can anyone explain that contradiction?

This sounds very interesting. I also have the newer MDL560P model (INP-401) and the lower timings seem to work really well for me. I'll have to try the higher ones when I get a chance and see if I notice any difference.

[Ray]

This sounds very interesting. I also have the newer MDL560P model (INP-401) and the lower timings seem to work really well for me. I'll have to try the higher ones when I get a chance and see if I notice any difference.

I

Let us know when you do and what your outcome is.
It is possible that I'm not the only one that may run better with those "inappropriate" settings LOL

[Unlogic]

I haven't had the time to try the higher delays yet but I did find an interesting forum post yesterday.

It mentions that DSM cars are were unable to use the delays straight from the EVO roms because the EVO ECU's use MOSFET transistors which are much quicker than the transistors used in the DSM ECU's.

http://www.dsmtuners.com/threads/mon...post-152190341

Seems like EVO's from 98 and onwards use MOSFET transistors.

http://forums.evolutionm.net/ecuflas...-we-use.html#3

I wonder how the transistors in our flashable ECU's compare to the ones used in the 98+ EVO's.

[Ray]

I haven't had the time to try the higher delays yet but I did find an interesting forum post yesterday.

It mentions that DSM cars are were unable to use the delays straight from the EVO roms because the EVO ECU's use MOSFET transistors which are much quicker than the transistors used in the DSM ECU's.

Montero #482 Maf vs #399 Evo8 Maf? | Page 2 | DSMtuners

Seems like EVO's from 98 and onwards use MOSFET transistors.

Mfg Injector Latency vs What we use - evolutionm.net

I wonder how the transistors in our flashable ECU's compare to the ones used in the 98+ EVO's.

Interesting read! I am more confused now than ever lol

[Chris@Rvengeperformance]

There's too many variables to not have to tweak the latencies, even known ones. It isn't like the car is not going to run if they are off a tiny bit. Tweak them based on the low fuel trim.
Sent from my RM-845_nam_vzw_100 using Tapatalk

[Jimvr4]

I wonder how the transistors in our flashable ECU's compare to the ones used in the 98+ EVO's.

According to Brett we have mosfet solenoid drivers so I would assume the same for the injectors. The ON resistance for mosfets is very low which makes the injector impedance the dominant factor in the circuit.

[Unlogic]

I flashed the higher latency values for the injectors today and restored the stock VE table.

Within 40 minutes of driving my trims were almost perfect!

The higher latency values are definitely the way to go both even with the newer injector model.

I've been trying to get my trims within spec for days using the shorter latency values so this was a much welcome surprise.

[Chris@Rvengeperformance]

I flashed the higher latency values for the injectors today and restored the stock VE table.

Within 40 minutes of driving my trims were almost perfect!

The higher latency values are definitely the way to go both even with the newer injector model.

I've been trying to get my trims within spec for days using the shorter latency values so this was a much welcome surprise.

its going to depend on a lot of factors, including your idle fuel pressure. If your FPR is overrun your values will end up being different.

I was running .435 @ 14.06 volts, very closely matching the settings drmbldr posted, but I'm also probably close to 60 PSI base pressure at idle. At the end of the day you can start with a baseline, but you'll have to tweak it if you want the trims correct. As you have found the car is happier when they are correct. I just grab what merlin's guide or evom is using and start from there.

My 1050s actually ended up being pretty far off from what has been posted for others. I just grab the whole column and increment/decrement it by as much percent as my idle trim is off and usually can get it good in one or 2 adjustments.