Cerbera 4.5 timing table
Cerbera 4.5 timing table
Author
Discussion

mrniceguy351

Original Poster:

162 posts

77 months

Sunday 12th April
quotequote all
Gentlemen,

I am currently wiring my Cerbera up for a Haltech nexus R3. (Video to come)

In the evening once i am sick of crimping and stripping I am trying to get some sort of a plausible configuration on the haltech software. At this stage i figure I will run it based on TPSxRPM (same as stock) even though the Haltech has a built in MAP sensor (which maybe will come in useful once it's all running??)

Does anybody have the stock TPSxRPM timing table? Even if I pull a couple of degrees out for safety it would be helpful to get me in the ballpark.

Regards
Simon

Flatplane8

1,595 posts

286 months

Thursday 16th April
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Afraid I can't help, but looking forward to seeing how you get on. Could the stock MBE adaptive table give any clues?

mrniceguy351

Original Poster:

162 posts

77 months

Thursday 16th April
quotequote all
I believe the adaptive table is only for fueling.

Markb139

48 posts

141 months

Thursday
quotequote all
I’ve been trying to find this with a combination of a reverse engineered firmware and tracing the MbE942 circuit. I’ve then asked a couple of different AI bots to find how the timing works.
It produced a few tables, but I’ve yet to see if they look right. The AI may have made up the whole thing smile

Markb139

48 posts

141 months

Yesterday (19:13)
quotequote all
Here is a table generated by a script that examines the firmware for 4.2 cool rom. This is for the odd bank

RPM 0% 15% 30% 45% 60% 75% 90% WOT
400 21.2 21.2 21.2 19.8 28.0 20.0 10.0 10.0
600 21.2 21.2 21.2 24.0 28.0 20.0 10.0 10.0
800 21.2 21.2 21.2 24.0 28.0 25.5 25.5 25.5
1000 21.2 21.2 21.2 24.0 28.0 25.5 25.5 25.5
1200 18.0 18.0 18.0 24.0 24.0 24.0 24.0 24.0
1500 18.0 18.0 18.0 28.0 32.0 38.2 28.0 37.0
1800 18.0 18.0 20.0 32.0 36.0 46.0 38.5 40.0
2000 22.0 22.0 22.0 20.2 30.5 40.5 42.0 41.0
2500 26.0 26.0 26.0 26.0 36.2 41.5 48.8 48.0
3000 28.0 28.0 28.0 28.0 41.0 59.0 62.0 61.5
3500 28.0 28.0 28.0 28.0 48.0 59.0 62.0 62.0
4000 32.0 32.0 32.0 32.0 50.0 59.8 63.8 63.8


This is for the even bank

RPM 0% 15% 30% 45% 60% 75% 90% WOT
400 10.8 14.0 13.8 12.0 10.8 12.8 11.8 10.0
600 10.8 14.0 13.8 12.0 10.8 12.8 11.8 10.0
800 25.5 25.5 25.5 25.5 25.5 25.5 25.5 25.5
1000 25.5 25.5 25.5 25.5 25.5 25.5 25.5 25.5
1200 24.0 24.0 24.0 24.0 24.0 24.0 24.0 24.0
1500 24.0 22.5 21.5 21.0 20.0 24.8 24.0 26.0
1800 38.2 32.0 28.0 26.2 25.0 28.0 26.8 29.2
2000 34.2 28.0 26.0 26.0 26.0 26.0 28.0 28.0
2500 44.0 40.0 34.0 33.2 31.5 29.0 28.5 29.0
3000 54.0 48.0 34.0 32.0 32.0 32.5 32.8 33.2
3500 55.0 50.0 36.0 33.0 33.0 32.0 32.0 29.2
4000 56.0 54.0 40.0 38.0 33.0 32.5 32.0 30.5


USE THESE VALUES WITH CAUTION.
I'm not an engine guy, and most of the info extracted has been by an AI - stunning work by the AI
Cheers
Mark