How about a transmission tuning tutorial!

[ytry]

I'm new to all this programming stuff and I have to say hello to all of you, and thanks for all the good information on this post. I have been trying to get my 1-2 shift a little less. When if shifts it breaks the tires loose and I get all over the road, this has happened at the track as well. I will try some of the things on this post to see if I can get it better. Thanks again for all the good info..

What would be considered to high for the shift pressure??

[joecar]

I'm new to all this programming stuff and I have to say hello to all of you, and thanks for all the good information on this post. I have been trying to get my 1-2 shift a little less. When if shifts it breaks the tires loose and I get all over the road, this has happened at the track as well. I will try some of the things on this post to see if I can get it better. Thanks again for all the good info..

What would be considered to high for the shift pressure??

ytry, hi there and welcome...

One of the things you can try is adding some torque reduction on the 1-2 shift (table D0801), see if that makes any difference.

Regards
Joe

[oztracktuning]

I just logged torque tonight again
and got some peak readings (just two brief blasts of WOT)

TRQENG 416ftlb
TRQTRANS 419ftlb

but in the metric sections these values were shown
TRQENG 307Nm
TRQTRANS 309Nm

Now somethings not right here Nm is meant to bigger
using the usual 1.355 x factor

It should be around
564Nm which sounds like a sensible number. Why is EFIlive doing this?

[joecar]

I just logged torque tonight again
and got some peak readings (just two brief blasts of WOT)

TRQENG 416ftlb
TRQTRANS 419ftlb

but in the metric sections these values were shown
TRQENG 307Nm
TRQTRANS 309Nm

Now somethings not right here Nm is meant to bigger
using the usual 1.355 x factor

It should be around
564Nm which sounds like a sensible number. Why is EFIlive doing this?

Let's play with the numbers...

416 * 1.356 = 564
416 / 1.356 = 307

Hmmm... it would appear that EFILive is dividing instead of multiplying to get the torque numbers.

[ytry]

ok thanks for the info, what % would be safe to start with?

[joecar]

ok thanks for the info, what % would be safe to start with?

Your Torque Reduction D0801 is 0% now...?
Try setting it to 20% and adjust from there.

[ytry]

Yes it is 0 I will try that and get back with you , thanks again for the help..

[oztracktuning]

How is TRQENG calculated ? Just wondering if its a valuable way of measuring gains in power??

Today mine did 440ftlb = 596Nm.
I know a while ago it never could go above 432ftlb in the logs ie 585Nm

[joecar]

How is TRQENG calculated ? Just wondering if its a valuable way of measuring gains in power??

Today mine did 440ftlb = 596Nm.
I know a while ago it never could go above 432ftlb in the logs ie 585Nm

It's the PCM's way of computing torque; I don't know how accurate it is; the PCM uses dynair and advance (among other things) to compute it; PCM uses it to index the trans. tables.

Was anything different today that you think could be responsible for the relative gain...?

[oztracktuning]

It was just a bit cooler
and yesterdays log was at a higher altitude as well.

How can i simply get the Nm displaying properly. I cant find any files in the config area that i can edit to fix it???