I disagree, it's a combo package.

 

I agree with GST. Latency is very important at lower injector pulsewidths, such as during idle and cruise. If you are idling in the 1ms range, then 100us (microseconds) of latency changes fueling by 10%. That's 0.100 in latency value (ms). The higher the IPW, the less the latency has an effect, but it is very important at idle and cruise.

 

I used the PTE 880 latency values in the AEM master excel document. http://www.sr20deracing.com/EVO/inje...ncy_master.xls


I took the injectors off today and wrote the numbers on them down.

The numbers on the black tops of the injectors are all the same.

The numbers scratched into the grey/green bottoms are as follows

 

That's one of your problems.

I'm telling you, needs more latency...

 

What values do you recommend?

 

17113743 is a Delphi 85lbs/hr injector; so yeah, those are 880s.

For the archives (from 3si):

P/N - Delphi rating - PTE rating - Measured flow
17113738 - 50 lb/hr - 550cc - 515cc/min (estimated)
17113741 - 55 lb/hr - 580cc - 535cc/min
17113814 - 65 lb/hr - 680cc - 640cc/min
17113742 - 75 lb/hr - 780cc - 748cc/min
17113743 - 85 lb/hr - 880cc - 840cc/min (estimated)

 

.7XX + at 14v and the other volts scaled accordingly.

Scaling probably start at 690+

once you get the STFT / 02 Feedback as close to +/- 3 at idle, go for a cruise and watch your trims at cruise. If they go minus then take away a little scaling, if they go plus, then add a little scaling. Balance the latency to fine tune.

- Bryan

 

Thanks alot for confirming them as 880's

I will try that tomorrow and let you know how it works out. Thanks!

 

I flashed a new ROM this morning before going to work and the difference is night and day. These are my current settings...



I still need to tweak the values, but my STFT and low is much better. The mid trim is taking out fuel and the low is adding fuel.



Thanks for the help guys. I will be playing with the values some more.

 

Glad it helped.

Try a little more scaling and a bit more latency

 

what brand injector are those. i have them and dont know the brand