Race ECM question

[MegaFighterX]

I'm curious as to what all it does for the bike aside from letting you pop the secondary muffler off. I'm curious, as I'm tempted to get it... but I don't want to have it affect the bike in a bad way. I know the bike doesn't need more power. :D

[noone1569]

It really smooths out the powerband. I assume because it gets rid of all of the "emissions" compliant tuning. It seriously makes the bike way better and is well worth it.

[TerryS1980]

Allows denoid without resistor and lowers idle a couple hundred RPM

[Mike]

Idle speed is VERY close if not identical to the original ECM
Overall, what "noone" said. Well worth the money.

Mike

[MegaFighterX]

sounds good. Another question then: to run it properly, you should remove the secondary muffler, right?

[mbfj40]

Is the user programmable Race ECM open loop only? or open and closed loop?
thanks
mike

[d_adams]

Is the user programmable Race ECM open loop only? or open and closed loop?
thanks
mike

Algorithmically, the ECM uses narrow-band O2 sensors for closed loop. The tunable ECM also has wide-band O2 sensor inputs so you can monitor actual AFR in PCM. PCM is the software to alter the ecm.

[d_adams]

sounds good. Another question then: to run it properly, you should remove the secondary muffler, right?

Correct. The race ecm programmed for the secondary delete is also a bit richer than the stock calibration, leaving the muffler in place (the side can) will make it run a bit richer yet.

[qurtrn10]

Mine was already faster than I could use, but I got the ECM because I wanted the exhaust tips (sounds soooo much better). As a side bonus, the new ECM got rid of the hiccup I would find around 5k (I think it was 5k - may have been 4k). I also want to denoid the bike, and this makes that easier too.

[Classax]

Smooths out the power delivery, so there is no step in power at that 6.5 to 7k mark. The engine braking is also is reduced.