proper way to dyno an A/T CM5?

[fatbastard]

how to do it properly since we can't "lock" the tranny to 3rd gear? inputs please.

[CYANiDE]

d3....?

[slipkord]

Pulled this from V6P:


Which gear to dyno in.

As it turns out, the 98-02 Accord V6 is actually a pretty difficult car to get a good dyno on. Automatics are always harder to dyno than manuals, and of course all 98-02 AV6s are automatics. To "stage" to get ready to start the dyno, you will need to have the shifter in D3 so that the engine stays in 3rd and then ramp the speed up to about 60 mph. At 60 mph and above, the transmission logic will no longer kick the transmission down to 2nd gear on full throttle even though 2nd will go up to about 73. However, this will only give you a look from 4000 rpm on up. Since it's important to see low/mid-range responsiveness of mods also, the other option is to dyno in "2". This will put the transmission in snow mode. It will not kick-down to 1st gear when full throttle is applied, even from a dead stop. Therefore, you can get a full sweep of the rev-range in 2nd, unlike a 3rd gear dyno.

Basically says keep it in D3.

I'm sure whoever is running the dyno can give you better advice.

[timot_one]

What those guys said.  I haven't owned an automatic in like the past 11 years, so I really wouldn't know. 

[MyNameIsThien]

D3 is where it needs to be. Thats is what the tuner did when he tuned and dynoed my car.

[fatbastard]

yeah i also think it should be in D3, i  just dunno how to deal with the auto shifting down.

so i guess this is settled then. thanks.

[CrackerTeg]

For the record, this was the more appropriate forum rather than General Discussion where I found it. As for dynos, Jer and Thien already answered and I, like Tim, haven't had an auto in quite some time.

[fatbastard]

this is my first A/T car, so i'm kinda clueless about it.