COVR4355
Proven Member
- 70
- 10
- Mar 8, 2017
-
Grand Junction,
Colorado
Well I feel like a born-again believer who had their demons cast-out- That incredible volatile MAFT I had was killing me…so with the counsel of the DSM gurus I decided to go Speed Density and boy is it so much better already-only have spent an hour so far and the car runs incredibly better…obviously needs great improvement via tuning.
After delving into the wide-spectrum of tuning videos and guides: especially Dr. Turbos 1.9 version SD guide I know without a shout of a doubt I need to improve upon it…with the help of Kevin J I was able to correctly hook up my WB into DSMlink so that should aid both myself and whoever has the time to take a look and critique the logs.
What needs to be improved upon?
It seems I still need to pull timing under WOT…have already retarded 2% on the appropriate cells.
In SDVE cells it seems I should put more fuel into it to even my wb and afrest correct in the +9 boost range? Also there seems to be +20 to -25% swings in the WBFactor as well...mess with global deadtime or individual cells?
Furthermore, one of my biggest concerns is the stalling issue that I feared going to SD…it seems almost a 50/50 chance that after cruise or spirited driving once you take it out of gear to go to idle the car wants to die? Should I mess with basetip in that ECM discusses to help alleviate the stalling?
Once again let me thank you all for your time and how grateful I am for your insight and aid in understanding these glorious cars…
Have 17 days till I need the car dialed in so I can take the wife and light her up at our local drag-strip in her coyote mustang-cannot lose the wagers-leave it at that for all the kiddos
Specs for the VR4 include:
20g Turboported
Speed Density-GMIAT and Omni4bar
v3 DSMLink
Wideband 2EO with Gauge
HKS Electric Valve Controller
HKS External Wastegate
660cc Denso Injectors with AFPR
Walbro 255 fp with rewire
Greddy Blow-off valve mounted on top of FMIC
Ross Pistons
Eagle Rods
HKS 262 and 272 Cams
1. BOV starts to slowly leak at +10 psi- damn you TYPE R Greddy I will replace you soon enough
2. Mechanical timing is right.
3. Base timing is at 5 degrees
4. Ignition System plugs have 3.5k miles on them with NGK BR7ES gapped at .28
5. Compression test-waiting on purchasing a tester myself...previous owner shows 800 miles ago that all 4 cylinders where near 175 psi.
6. TPS volts at .63-.65 and TPS at 0 and 100 WOT; ISC 20-40 range (hard to get it to stay at 30).
7. Compression ratio is 8:5:1
8. No known issues
9. No DTC/CEL codes
10. Electrical system rocks at the near 14 volt range-beefy Saturn alternator ftw
11. Base fuel pressure is 39 psi and injector values set at Denso 660’s
12. Wideband Sensor is configured correctly-TechEdge 2eo.
13. 91 OCT at near Mile High altitude.
14. Yes and Yes and all those found on YouTube from Jafro, Scott, and Snowboarder and chatting with brilliant GSTwithPSI, Howell, and Kevin J regarding tuning-cannot thank you all enough for your time!
-Joshua-
After delving into the wide-spectrum of tuning videos and guides: especially Dr. Turbos 1.9 version SD guide I know without a shout of a doubt I need to improve upon it…with the help of Kevin J I was able to correctly hook up my WB into DSMlink so that should aid both myself and whoever has the time to take a look and critique the logs.
What needs to be improved upon?
It seems I still need to pull timing under WOT…have already retarded 2% on the appropriate cells.
In SDVE cells it seems I should put more fuel into it to even my wb and afrest correct in the +9 boost range? Also there seems to be +20 to -25% swings in the WBFactor as well...mess with global deadtime or individual cells?
Furthermore, one of my biggest concerns is the stalling issue that I feared going to SD…it seems almost a 50/50 chance that after cruise or spirited driving once you take it out of gear to go to idle the car wants to die? Should I mess with basetip in that ECM discusses to help alleviate the stalling?
Once again let me thank you all for your time and how grateful I am for your insight and aid in understanding these glorious cars…
Have 17 days till I need the car dialed in so I can take the wife and light her up at our local drag-strip in her coyote mustang-cannot lose the wagers-leave it at that for all the kiddos
Specs for the VR4 include:
20g Turboported
Speed Density-GMIAT and Omni4bar
v3 DSMLink
Wideband 2EO with Gauge
HKS Electric Valve Controller
HKS External Wastegate
660cc Denso Injectors with AFPR
Walbro 255 fp with rewire
Greddy Blow-off valve mounted on top of FMIC
Ross Pistons
Eagle Rods
HKS 262 and 272 Cams
1. BOV starts to slowly leak at +10 psi- damn you TYPE R Greddy I will replace you soon enough
2. Mechanical timing is right.
3. Base timing is at 5 degrees
4. Ignition System plugs have 3.5k miles on them with NGK BR7ES gapped at .28
5. Compression test-waiting on purchasing a tester myself...previous owner shows 800 miles ago that all 4 cylinders where near 175 psi.
6. TPS volts at .63-.65 and TPS at 0 and 100 WOT; ISC 20-40 range (hard to get it to stay at 30).
7. Compression ratio is 8:5:1
8. No known issues
9. No DTC/CEL codes
10. Electrical system rocks at the near 14 volt range-beefy Saturn alternator ftw
11. Base fuel pressure is 39 psi and injector values set at Denso 660’s
12. Wideband Sensor is configured correctly-TechEdge 2eo.
13. 91 OCT at near Mile High altitude.
14. Yes and Yes and all those found on YouTube from Jafro, Scott, and Snowboarder and chatting with brilliant GSTwithPSI, Howell, and Kevin J regarding tuning-cannot thank you all enough for your time!
-Joshua-
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