SRT4 93tune Improvment request U7134

Srt4Dr1ver · Post by **Srt4Dr1ver** » Tue Sep 22, 2009 9:16 pm

SCGt94 wrote:remember all i changed were knock thresholds, tweaked mid range timing, smoothed desired torque tables and tweaked a few things that were off between tunes. So if you needed to add fuel, you'll need to do it again. Boost should be similar to brains tunes, i didn't increase desired torque, just smoothed it. Email is sending as i type this..

Alright, I will let you know how it goes. I will try it out tomorrow. Thanks!

Krazyrdr83 · Post by **Krazyrdr83** » Tue Sep 22, 2009 9:55 pm

I'll try out the new update...

[email protected], 04 srt-4

e-mailed you as well

newsrt4 · Post by **newsrt4** » Wed Sep 23, 2009 1:44 pm

just wondering got the update around aug.28 when don first released it, has it been updated to were i need to download the new crom or is it the same.... thanks

SCGt94 · Post by **SCGt94** » Wed Sep 23, 2009 2:38 pm

its been updated a bit...ill send you out the new one

Srt4Dr1ver · Post by **Srt4Dr1ver** » Wed Sep 23, 2009 6:16 pm

SCGt94 wrote:its been updated a bit...ill send you out the new one

It seemed better but it only let me datalog 15 seconds and the whole predator was a lot slower as to loading time, etc. Why is this? Performance-wise it seemed better but the other stuff I just said I don't like :/.

gizmodo · Post by **gizmodo** » Thu Sep 24, 2009 8:53 am

How many PIDs are you logging?

SCGt94 · Post by **SCGt94** » Thu Sep 24, 2009 10:04 am

alex added a fix for logging for the predator. Apparently if you logged, shut the car off and then restarted it, the predator would freeze and it would need to be unplugged. I know he added this fix to my crom, ill give him a shout and see if these two things are related or not.

Srt4Dr1ver · Post by **Srt4Dr1ver** » Thu Sep 24, 2009 9:17 pm

SCGt94 wrote:alex added a fix for logging for the predator. Apparently if you logged, shut the car off and then restarted it, the predator would freeze and it would need to be unplugged. I know he added this fix to my crom, ill give him a shout and see if these two things are related or not.

Oh okay, thanks. Hope that gets fixed.

gizmodo wrote:How many PIDs are you logging?

All I was logging was knock for that run.

SCGt94 · Post by **SCGt94** » Fri Sep 25, 2009 4:54 pm

i tested it on the bench and saw no difference in speed logging wise. I may have seen a slight delay in loading times but nothing to write home about. I however did not see loading times get so excessive that i said "wtf"

Srt4Dr1ver · Post by **Srt4Dr1ver** » Fri Sep 25, 2009 8:46 pm

SCGt94 wrote:i tested it on the bench and saw no difference in speed logging wise. I may have seen a slight delay in loading times but nothing to write home about. I however did not see loading times get so excessive that i said "wtf"

Hmm, I will try it out again in the morning. But what about it only datalogging 15 seconds? I didn't imagine that haha.

Krazyrdr83 · Post by **Krazyrdr83** » Sat Sep 26, 2009 12:00 am

Ok, well, i tried it out for a few days...first thing I noticed is that it loads things very slowly. I sat there forever uploading the new crom/93 oct tune in the pcm. even when making changes, it's like it pauses, and then takes longer than the 9r17 crom.

did a few pulls, no logging yet, but my a/f are everywhere. first pull, a/f went from high 11's, to mid 12's...backed off. tried again thinkin maybe i didn't add enough fuel, but it's the same amount i've always added. so i left it alone. same day, i did another pull on the way home. now my a/f went from mid 11's to mid 10's...i was like wth.

today, i did another pull, a/f went from high 11's, to mid 12's and then jumped to low 13's. i freaked out...never had that happen to me. tried again thinkin maybe something was up...same thing. pulled the 93oct tune out. loaded the revised ptp tune (still took forever to load), and still had 10.5% fuel added, did a two pulls, and a/f were high 10's low 11's both pulls....

?

Srt4Dr1ver · Post by **Srt4Dr1ver** » Sun Sep 27, 2009 9:37 pm

Krazyrdr83 wrote:Ok, well, i tried it out for a few days...first thing I noticed is that it loads things very slowly. I sat there forever uploading the new crom/93 oct tune in the pcm. even when making changes, it's like it pauses, and then takes longer than the 9r17 crom.

did a few pulls, no logging yet, but my a/f are everywhere. first pull, a/f went from high 11's, to mid 12's...backed off. tried again thinkin maybe i didn't add enough fuel, but it's the same amount i've always added. so i left it alone. same day, i did another pull on the way home. now my a/f went from mid 11's to mid 10's...i was like wth.

today, i did another pull, a/f went from high 11's, to mid 12's and then jumped to low 13's. i freaked out...never had that happen to me. tried again thinkin maybe something was up...same thing. pulled the 93oct tune out. loaded the revised ptp tune (still took forever to load), and still had 10.5% fuel added, did a two pulls, and a/f were high 10's low 11's both pulls....

?

I datalogged today and after retarding knock 2* in 2k-3k and 3k-4k rpm's and 3* in 4k-5k and 5k-6k rpm's That brought it down to a 1.5 knock. Initially it had hit 6.0 just like it used to. What's going on? I will post up my dl. The dl is after I added 6% fuel in 3-4, 4-5 and 5-6 rpm's.

Krazyrdr83 · Post by **Krazyrdr83** » Sun Sep 27, 2009 10:42 pm

i didn't datalog yet..waiting for some input on why it slowed things down, and my a/f acting up. right now. I'll upload it again and do some more pulls with logs

SCGt94 · Post by **SCGt94** » Mon Sep 28, 2009 8:59 am

Not really sure as to why your a/fs would be so erratic, like i said earlier, no changes were made in regards to that stuff. desired a/fs were left alone, just knock thresholds and mid range timing were adjusted. As far as the loading and writing is concerned, ill bring it up to alex again and see whats up. I may need to get a car in here, ill give a guy a call today and see if i can get his car for friday.

SCGt94 · Post by **SCGt94** » Mon Sep 28, 2009 9:02 am

Srt4Dr1ver wrote:
Krazyrdr83 wrote:Ok, well, i tried it out for a few days...first thing I noticed is that it loads things very slowly. I sat there forever uploading the new crom/93 oct tune in the pcm. even when making changes, it's like it pauses, and then takes longer than the 9r17 crom.

did a few pulls, no logging yet, but my a/f are everywhere. first pull, a/f went from high 11's, to mid 12's...backed off. tried again thinkin maybe i didn't add enough fuel, but it's the same amount i've always added. so i left it alone. same day, i did another pull on the way home. now my a/f went from mid 11's to mid 10's...i was like wth.

today, i did another pull, a/f went from high 11's, to mid 12's and then jumped to low 13's. i freaked out...never had that happen to me. tried again thinkin maybe something was up...same thing. pulled the 93oct tune out. loaded the revised ptp tune (still took forever to load), and still had 10.5% fuel added, did a two pulls, and a/f were high 10's low 11's both pulls....

?
I datalogged today and after retarding knock 2* in 2k-3k and 3k-4k rpm's and 3* in 4k-5k and 5k-6k rpm's That brought it down to a 1.5 knock. Initially it had hit 6.0 just like it used to. What's going on? I will post up my dl. The dl is after I added 6% fuel in 3-4, 4-5 and 5-6 rpm's.

I assume you meant you pulled 2 degrees of timing in those areas? You should log spark @ cyl 1 and base spark. The tune only runs 22 degrees at fuel advance, having to pull and another 2 seems a bit excessive...you have a catch can correct?