GT3076r with 380+ whp at STM's Mustang Dyno
Aug 3, 2009, 08:19 AM
#34
That was the last really good picture from the front end, I'm still filling in all the paint chips with touch up paint which is restoring it to "good enough from five feet" status.
Hey, congrats on the self tune and power. It is a great feeling of accomplishment. You should come to the etown showdown. I'm going to be there :-). Also what did you make on the VDR?
Congrats Chris ! But I cant see the dyno charts attachments dude, can you attached them again ?
Aug 4, 2009, 08:24 AM
#37
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Hiboost, when you said you adjusted the exhaust mivec -5 at 6000 and -10 at 6500-8000, did you do it across the board (i.e. till the 320 load cell)? Thanks.
Aug 4, 2009, 11:09 AM
#38
Even though my load tapers from 260-270% down to 230-240% at 8000 I ended up making sure 200-320% load were all the same as quoted above for consistancy. I have a few more combinations to test the next time I'm on the dyno so i'll have some larger turbo maps dialed in eventually.
Aug 7, 2009, 10:00 PM
#40
Trip to the strip results
So with the night air in the 60's, high pressure, and low humidity I headed out to the local dragstrip at NYIRP.
I wasted a few 1.7x short times with great 1-2 shifts only to mis 3rd and hose the run for mid 12's.
Shifting from 4th to 5th at 7k SUCKS and is only good for low 12's.
I was trying to shift at 7500 but somehow the tranny liked 8000 better.
Then I decided it was time to bump the Limiter to 8200 and I got these times:
11.985 @ 117.50
11.920 @ 116.36
Then I bumped it to 8300 but both times I chickened out and held the rpm's at 8200 while coasting through the traps.
Best MPH:
60': 1.703
1/8: 7.595 @ 89.05
1/4: 11.768 @ 118.67 (+29.62 mph gain with coasting through the traps!)
Best ET:
60': 1.737
1/8: 7.587 @ 90.64
1/4: 11.729 @ 117.30 (coasting through the traps around 8200)
All runs were made with my standard street tune that was 380-386 whp on the STM Mustang Dyno @ 26.5 psi peak boost. I still had some 100 unleaded in there which was alllowing me to run an extra 3 psi at peak torque but sadly in the 6500-8000 rpm range where I was revving the motor, the boost was barely 1 psi more at the same RPM according to my logs. I'm going to play around with different restrictor combos to see if I can reduce some of the taper at the top end before the shootout.
Worst case I can bump the timing where it tapers to take advantage of the 100 unleaded gas, otherwise I'll just run 93 octane pump gas. The real limiting factor is still 4th gear running out of revs. Cosworth Cams with upgraded valve springs would let me rev it to 8500 without being nervous but since they also add some good HP I would be coasting through the traps once again. No lift to shift would knock off at least a tenth of a second from each shift because right now I'm dumping all the boost between each gear according to the logs. A taller final drive would be perfect for this car and allow it to achieve 120 mph traps easily and 124-125 mph with cams. Seems that my 19" tires being .2" shorter diameter is not helping matters either!
4th Gear stats (6500-8200):
Average Boost = 26.0 psi
27.7 psi @ 6500
27.0 psi @ 6800
26.0 psi @ 7250
25.0 psi @ 7600
24.0 psi @ 7900
Average AFR = 11.4
Timing Advance = 14* to 17*
It's all about the gearing!
I wasted a few 1.7x short times with great 1-2 shifts only to mis 3rd and hose the run for mid 12's.
Shifting from 4th to 5th at 7k SUCKS and is only good for low 12's.
I was trying to shift at 7500 but somehow the tranny liked 8000 better.
Then I decided it was time to bump the Limiter to 8200 and I got these times:
11.985 @ 117.50
11.920 @ 116.36
Then I bumped it to 8300 but both times I chickened out and held the rpm's at 8200 while coasting through the traps.
Best MPH:
60': 1.703
1/8: 7.595 @ 89.05
1/4: 11.768 @ 118.67 (+29.62 mph gain with coasting through the traps!)
Best ET:
60': 1.737
1/8: 7.587 @ 90.64
1/4: 11.729 @ 117.30 (coasting through the traps around 8200)
All runs were made with my standard street tune that was 380-386 whp on the STM Mustang Dyno @ 26.5 psi peak boost. I still had some 100 unleaded in there which was alllowing me to run an extra 3 psi at peak torque but sadly in the 6500-8000 rpm range where I was revving the motor, the boost was barely 1 psi more at the same RPM according to my logs. I'm going to play around with different restrictor combos to see if I can reduce some of the taper at the top end before the shootout.
Worst case I can bump the timing where it tapers to take advantage of the 100 unleaded gas, otherwise I'll just run 93 octane pump gas. The real limiting factor is still 4th gear running out of revs. Cosworth Cams with upgraded valve springs would let me rev it to 8500 without being nervous but since they also add some good HP I would be coasting through the traps once again. No lift to shift would knock off at least a tenth of a second from each shift because right now I'm dumping all the boost between each gear according to the logs. A taller final drive would be perfect for this car and allow it to achieve 120 mph traps easily and 124-125 mph with cams. Seems that my 19" tires being .2" shorter diameter is not helping matters either!
4th Gear stats (6500-8200):
Average Boost = 26.0 psi
27.7 psi @ 6500
27.0 psi @ 6800
26.0 psi @ 7250
25.0 psi @ 7600
24.0 psi @ 7900
Average AFR = 11.4
Timing Advance = 14* to 17*
It's all about the gearing!
Last edited by Hiboost; Aug 7, 2009 at 10:05 PM.
Aug 8, 2009, 08:21 AM
#43
I'm using a 6k 2 step limiter that allows about 10 psi of boost after a few seconds. You need to update the code for EcuFlash to be able to adjust it properly as the one in there now isn't the right table. I'm not sure if they fixed that in the latest beta but here is the link:
https://www.evolutionm.net/forums/ev...vo-10-gsr.html
For the 1.7x launches I was using ASC turned off one stage, so that the braking assist function was still reducing excessive wheel spin off the line. Seemed to work well for me and once I got in the groove it was very repeatable. As soon as the tree started to come down I revved to WOT and launched with only slight wheelspin.
https://www.evolutionm.net/forums/ev...vo-10-gsr.html
For the 1.7x launches I was using ASC turned off one stage, so that the braking assist function was still reducing excessive wheel spin off the line. Seemed to work well for me and once I got in the groove it was very repeatable. As soon as the tree started to come down I revved to WOT and launched with only slight wheelspin.
Aug 8, 2009, 09:51 AM
#44
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Hiboost, i've been down on this turbo and ******* your for a while, but this is very impressive. Get some cams in there, and I think you'll be in total business :-)
