2-1-2 ECU versus 2-1 ECU

[sinex]

96519308B 2-1-2 versus 96518708B 2-1, does the 2-1 termi ecu chip supply more fuel and have a different map, resulting in more bhp over the 2-1-2 chip?

[Crank1000]

Here you go:
ECU and exhaust combos revisited

[sinex]

yeah, thanks but does not really provide the answer, is the 2-1 chip 8% more fuel ove the 2-1-2 chip, 16% more over standard? and does the 2-1 chip have a different fuel map, making more power than a 2-1-2 chip,

[mangler7]

Originally Posted by mangler7

ECU and exhaust combos revisited


1) Stock
2) Slip-on = 8% more fuel, no O2 sensor = 96519308B 2-1-2
3) Full system = 8% more fuel, no O2 sensor, no exhaust valve 96518708B
4) Full sys w Cams = 18% more fuel, no O2 sensor or valve = 96519208B

Ha, nevermind, you posted that.

[dave2riff]

Adding more fuel to an engine than it requires makes less power, not more.
Optimum power producing AFR's vary with rpm, load, throttle opening, etc., so
a blanket percentage increase over the whole map is probably NOT what the
different ECU's are doing; rather, there is an average fuel increase when you
add up all the hundreds of points on the fuel map. The folks who have shared
PC III maps used to optimize HP (on a dyno in conjunction with a DP ECU) have
shown that there are a lot of areas where the DP race ECU's are _overly_ rich,
probably in the interest of the manufacturer offering a safe and conservative
generic map for mass consumption. Richer mixture= lower cylinder temps and
lessens the chance of any mechanical failures on modified machines.

If you don't have the cams and/or other top end mods like hi-comp pistons and
head work, I wouldn't switch to the cams ECU from either of the Termi ECUs.

[Crank1000]

Originally Posted by sinex

yeah, thanks but does not really provide the answer, is the 2-1 chip 8% more fuel ove the 2-1-2 chip, 16% more over standard? and does the 2-1 chip have a different fuel map, making more power than a 2-1-2 chip,

From what I understand:
2-1-2 is 8% over stock and allows removal of 02 sensor.
2-1 is also 8% over stock and allows for the 02 sensor, but also allows for the flappers to be removed without causing a fault code.

I suspect the fuels maps are identical, just one doesn't create a fault when the flappers are removed. I'm no expert, but I believe they will both produce the same amount of power given the same exhaust system.

[mangler7]

Originally Posted by Crank1000

From what I understand:
2-1-2 is 8% over stock and allows removal of 02 sensor.
2-1 is also 8% over stock and allows for the 02 sensor, but also allows for the flappers to be removed without causing a fault code.

I suspect the fuels maps are identical, just one doesn't create a fault when the flappers are removed. I'm no expert, but I believe they will both produce the same amount of power given the same exhaust system.

I concur.

[sinex]

quote, 2-1 is also 8% over stock and allows for the 02 sensor, but also allows for the flappers to be removed without causing a fault code.

in the nicest way-hogg wash

1) I run the 2-1-2 ecu chip, and removed the flapper valve motor with no ecu light warning, the 2-1-2 disables the flapper-period

2) The 2-1-2 with the cat in place is a road legal system, the 2-1 is sold as a "race only system" for performance, it has no cat and adds more BHP to the bike, I think ,about 3 to 4 hp, I guess through the loss of the cat and better breathing via a bigger header,

There must be someone out there that knows about the 2-1 ecu fuel map,

[dave2riff]

Someone at one time indicated that the 2-1-2 ECU did not disable the
exhaust flapper valve by default, but it _allows_ the dealer to set the flag
to disable the exhaust valve using the Ducati Diagnostic Tool, which the
stock ECU does not.

Makes sense, since the exhaust flapper valve is not removed by the installation
of slip-on mufflers. Anyone know this for sure?

[johnchypermotard]

Originally Posted by sinex

There must be someone out there that knows about the 2-1 ecu fuel map,

i do ... but i'm not telling.