I should add that the engine has survived my driving better than the rest of the car....

 

you will run lean with an AP1 ecu on an 2.2L.

 

the EMS system (which ever one) would override the stock ECU anyway so i guess in theory it wouldn't even matter which ECU I use other than the Rev Limiter.

 

scot... you need an ap1 ecu?

 

Well an AP1 ECU, with e-Manage handling the A/F ratio. That should address the lean condition.

Scot, what transmission are you running? AP1 or AP2? What gear are you in when holding redline?

 

^ i have a full AP2 swap (engine/tranny). it depends on the track on which gear I would be holding.... at Beaver I was holding in 3rd and smacking the 8300rev limiter of my AEM.

someone posted that they are pretty sure the Greddy Emanage Ultimate can adjust the Rev Limiter so hopefully I will just go with an ap2 ECU and raise the limiter. i fear running the ap1 ecu due to going to 9k too many times by accident.

 

Well if you ran the AP1 tranny you would have a little more room (speed) in 1-4. The gearing is just a bit taller. I figured it was third

 

Per Honda Challenge rules, tranny and engine must stay together (ie no back dating of either of the parts).

 

right now I have stock rear gears.... i only shift into 6th gear for a very short time at Beaverun and probably similar at Summit Point so I should probably put in some shorter gears which would change everything..... i think the west coast guys go with 4.3's? 4.44's maybe... anything else is definately too short...

 

Thanks, I will have to read closer. I am no where near that part of my build yet.

Scot, I was talking about the differance in the AP1/2 transmissions. They changed the secondary reduction gear and lower the net ratio for 1-4 and raised it for 5-6.