mike 96 ws6

i dynoed my car last year but the regular dyno guy was off work that day. i don't believe the guy that did it knew what he was doing. look at the numbers on this graph:
http://images.cardomain.com/member_i...1_113_full.jpg
he dynoed it shifting from 2nd to 3rd instead of letting it shift to 3rd gear {1-1 ratio, a4} and disabling the 3-2 solenoid in order to get a good torque curve on the graph.
i have a mt2500 snap-on scanner that i could use to disable the solenoid in functional test mode when my car was OBDII, but now with the OBDI conversion i don't have that option. {no funtional test in transmission mode}. i'm planning to take it back to the dyno and need to know how to disable that solenoid for this run?
BTW: i thought this board used to have a "dyno" section but i don't see it now?
thanks for the help.

Dan K

You don't need to disable anything.
Go into the kickdown mph tables and set the 1-2 at 10mph and the 2-3 to 15mph. Then set the downshift 3-2 to 10 mph and the 10-5 to 5mph.
It'll then shift into 3rd gear at 15mph and stay there so you can start your dyno pull at anything over that mph and get you're torque curve.

mike 96 ws6

don't i need lt1 edit or tunercat to set those tables? the only pc i have is an e-machines etower 667 desktop running windows me. will that work and if so, what all will i need?

Dan K

I was assuming you had the stuff to change these tables. Sorry.

DOOM Master

I don't think your dyno operator knows what he's doing. There shouldn't be any need to change the shift points or disable anything. The dyno window (start to stop) to measure the HP/TQ should be set so that the transmission is in the 1:1 drive ratio the whole time. There should be no shifting at all.

mike 96 ws6

all i have right now is a scanner but i,ve been searching through a lot of post and web sites trying to learn about tuning. i think for now i'll try to find a used laptop i can afford and get datamaster and leave the tunning to Ion as i do more mods.
the guy that usually does the dyno's was off work that day so the boss let a couple of young guys do it and even with me not knowing anything about dyno's, it was obvious they didn't know how.
if third gear is 1:1 ratio with an a4, and i want a dyno graph starting at about 2500 rpm's, then how do they keep the tranny from downshifting to 2nd when they nail the throttle?

DOOM Master

In this case, you'd have to be able to reprogram your shift points, since you have an A4. The only way you can do that is with a programmer like Tunercat or LT1Edit. But there is really no need to start the testing at 2500 RPM, and without a programmer you aren't going to be able to do it anyways.

Dan K

Not a need? Maybe not. Nice to see? Yes.
I love seeing the graph start that low, especially on M6 cars or A4's with a stock stall.
Besides, if it's possible to get numbers in the usable rpm band, why not get them?

mike 96 ws6

i could live with numbers starting higher than that, but in the graph from last time, starting at 3800, the torque line is all downhill and that makes it hard to see exactly where the torque peak is.
and i like looking at that 305.7 hp / 418.4 tq number but it's not accurate. this next time i'd like to get a little more accuracy for my $75.

mike 96 ws6

i put the car back on the dyno and got the same results the first 2 runs. {downshifting to 2nd gear}. finally on the third try he got it to stay in 3rd and i got some accurate #s. and a nice gain over the run i made last year. the dyno operator really pisses me off but Ion did a good job with the tune. really woke it up.
http://www.cardomain.com/memberpage/366214/8