Deatschwerks injector latency

[mattk]

Hey everyone, ive searched endlessly on this subject and cant find anything. So i got rb20det 550cc deatschwerks injectors which comes with a flow report that and on the bottom of the report there is a chart for dead times but no data entered. I emailed them and they got back to me the same day saying he couldnt find any of that data for those specific injectors. He said they havnt been done yet as far as he knows, but he would test them in the next couple days or so. Then he back to me again today, he said this data was just forwarded to him. This is what he gave me.
7.5V / 8.5V / 9.5V / 10.5 / 11.5 / 12.5 / 13.5V / 14.5V / 15.5V
3.25/ 2.52/ 2.01 / 1.43/ 1.31/ 1.12/ 1.03 / 0.85 / 0.82

i have never seen them in that format before, normally ive seen them in 6,7,8,9 volts etc, but not in 7.5, 8.5 9.5 volts etc. And i cant change the volts settings in vipec to support that.

Anyone else have this problem? Car runs good but i would like to get the proper data to enter before my upcoming tune this week.

[mattk]

Anyone running a vipec v44 pnp on a rb20det running deatschwerks 550cc injectors?

[amnash]

im selling some deatschwerk injectors

[Skym]

So i got rb20det 550cc deatschwerks injectors which comes with a flow report that and on the bottom of the report there is a chart for dead times but no data entered.

7.5V / 8.5V / 9.5V / 10.5 / 11.5 / 12.5 / 13.5V / 14.5V / 15.5V
3.25/ 2.52/ 2.01 / 1.43/ 1.31/ 1.12/ 1.03 / 0.85 / 0.82

I would input data on that chart you were supplied to get plot / line graph, as that looks like table data for vertical, horizontal for that chart. Bottom looks like ms, top voltage.

i have never seen them in that format before, normally ive seen them in 6,7,8,9 volts etc, but not in 7.5, 8.5 9.5 volts etc. And i cant change the volts settings in vipec to support that.

Probably because they haven't rounded up or down the voltage, so it can be used in software??? Isn't anything above .5 and you round it up??? For example, 9.5 volts would be 10 volts.

I would round voltage up or down and look on chart at that point on plotted line to find the ms (if it is that) to input on ECU. It makes sense to do it that way and still get the same shape line graph on ECU, as shown on chart. Can use stock table settings for stock injectors as an example of whether to round up or down the voltage number and if you round voltage up, does it excede the limit's of that table.

Do you get what I mean???

[PurpleStreak]

Skym may be right, this is what I had on my report (RB26 800cc though)
volts millisec
7 2.1
8 1.7
9 1.4
10 1.1
11 0.9
12 0.8
13 0.7
14 0.6
15 0.6
16 0.5

Yours maybe rounded up to 8 through to 16 as well.

[RSTuning]

use, purplestreaks info as it is much closer than what they sent you. Your chart shows a dead time 1.03ms at 13.5v which is not correct.

[Skym]

What the person in post above said makes sense. From what I understand, the latency ms values for 550cc injectors should be lower than the 800cc injectors, as the smaller 550cc injectors take less time to open.

[mattk]

Yep, I basically ended up setting up a linear graph and plotted to get the values I need. Car seems to be running nice with the values. Well see. It's just about to go on the dyno at lightspeed as we speak.