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Author Topic: Bosch EV14 Injector Migration  (Read 361630 times)
pablo53
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« Reply #180 on: July 10, 2013, 02:26:13 PM »

Vendor provided latency tables for EV14 627cc and 980cc:
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BerkleyJ
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« Reply #181 on: July 17, 2013, 10:47:46 AM »

Why is there such a huge difference in everyone's TVUB values?

Nehalem, your values on page 11 are a lot different than the values on page 6?
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hipeka
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« Reply #182 on: July 17, 2013, 11:36:20 AM »

Here is the spec sheet for the 550's that everyone uses:


FNPW_OFFCOMP multiplier for 60,03 psid is wrong as told in many topics.

I wonder what else is wrong in that sheet?

I am using "prj" 's values and those seems to be very close if i look VCDS group 032 values.
But i'm having huge lambda corrections during acceleration and deceleration.
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s5fourdoor
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« Reply #183 on: July 17, 2013, 09:50:14 PM »

the entire reason for this thread is that 550cc spec sheet is wildly incorrect.
it'd be great if someone could get a proper flow bench assessment of those numbers.
that would solve everything if the numbers were correct for the 550's.
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ddillenger
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« Reply #184 on: July 17, 2013, 10:49:15 PM »

Getting accurate (comparable) figures assumes everyone has correct scaling. Assuming anything around here is dangerous.

TVUB on the other hand should be fairly close (at least in the 14v range that they operate at most of the time) with differences accounted for by pressure differences from one person to the next.
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prj
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« Reply #185 on: July 18, 2013, 12:32:00 AM »

FNPW_OFFCOMP multiplier for 60,03 psid is wrong as told in many topics.

I wonder what else is wrong in that sheet?

I am using "prj" 's values and those seems to be very close if i look VCDS group 032 values.
But i'm having huge lambda corrections during acceleration and deceleration.

You must edit KFBAKL and KFVAKL for these injectors. Try multiplying both by 1.5 as a start, and then fine tune it.
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julex
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« Reply #186 on: July 18, 2013, 06:13:21 AM »

There are revised sheets from the same source for different ev14 injector which I posted page or two ago.

The TVUB I experimentally arrived at by self-tuning, was only about 0.05ms off from sheet posted there for my 1000cc ev14 injectors so I am fairly certain that the new flow sheets are accurate. As you know, or not, same exact injector but drilled out to flow different volumes changes the TVUB dramatically. You can't use 550cc ev14 TVUB for 1000cc ev14 event though they are the same injector with different spout and orifice. 1000cc will take much longer to open up to its nominal flow.
« Last Edit: July 18, 2013, 06:17:28 AM by julex » Logged
BerkleyJ
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« Reply #187 on: July 18, 2013, 06:35:46 AM »

Here

Are the TVUB voltages 7, 10, 12, 14, 18? Not 8, 10, 12, 14, 16?
« Last Edit: July 18, 2013, 10:49:11 AM by BerkleyJ » Logged
julex
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« Reply #188 on: July 18, 2013, 10:35:19 AM »

Here? http://www.boschdealer.com/specsheets/

Are the TVUB voltages 7, 10, 12, 14, 18? Not 8, 10, 12, 14, 16?

Yes, redefine your Volt axis in TVUB table if you want to accurately input data or leave it alone and do some Curve Finder or Excel interpolation.
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nyet
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« Reply #189 on: July 18, 2013, 10:39:53 AM »

Anyone have any luck finding a spec sheet for the 750cc@3bar injectors? (im running them at 4bar)
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BerkleyJ
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« Reply #190 on: July 18, 2013, 10:40:58 AM »

Anyone have any luck finding a spec sheet for the 750cc@3bar injectors? (im running them at 4bar)
Isn't this it?

http://www.boschdealer.com/specsheets/750cc.pdf
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nyet
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« Reply #191 on: July 18, 2013, 10:45:59 AM »

yes, thanks, thats where i was JUST looking lol

« Last Edit: July 18, 2013, 10:55:52 AM by nyet » Logged

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ME7Sum checksum checker/corrrector for ME7.x

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Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
phila_dot
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« Reply #192 on: July 18, 2013, 11:36:51 AM »

Getting accurate (comparable) figures assumes everyone has correct scaling. Assuming anything around here is dangerous.

TVUB on the other hand should be fairly close (at least in the 14v range that they operate at most of the time) with differences accounted for by pressure differences from one person to the next.

TVUB can easily vary greatly between calibrations depending on how it was tuned. The only constant there should be the difference between cells.

Yes, redefine your Volt axis in TVUB table if you want to accurately input data or leave it alone and do some Curve Finder or Excel interpolation.

Adjusting the axis could have inconsistant results as the offset is not linear, but the map lookup is.


I could be wrong, but I don't think that cal sheet is for the modified EV14's that everyone is running.

IIRC, those are a completely different part number.
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julex
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« Reply #193 on: July 19, 2013, 09:09:05 AM »

I could be wrong, but I don't think that cal sheet is for the modified EV14's that everyone is running.

IIRC, those are a completely different part number.

It is for 0280158117 which is what everyone is running.
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ddillenger
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« Reply #194 on: July 19, 2013, 12:07:20 PM »

Calibration sheet supplied with my ford racing injectors (bearing the 117 suffix)

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