Elite 1500, 2 Rotor Turbo W/ trouble beyond 60% throttle

Relisys190
Posts: 11
Joined: Thu Dec 16, 2021 6:00 am

Elite 1500, 2 Rotor Turbo W/ trouble beyond 60% throttle

Postby Relisys190 » Fri Dec 17, 2021 3:01 am

Recently with the help of a friend wired up a new Elite 1500 on my Turbocharged Rx-7 Car is built to run E-85 and has been successfully driving on 93 octane for about 6 months now... I've been running E-85 for about 1 month now and the car runs, drives, starts and is overall excellent. Aside from unable being able to push beyond 60% Throttle... AFR looks perfect on Target and Wideband. TPS is calibrated. The car will boost up to 8psi at 50-60% throttle but as soon as i WOT it feels like it's hitting a wall. Like a lite switch is being turned OFF and I typically instantly let off throttle. We've gone over all the settings, checked the logs, checked the tune and everything seems like it should be just fine. Looking for some help here gents and really appreciate it! I'll post todays Log and tune file here to look over.

Car is running 6 port NA 9.7-1 rotors, 13B with Stage 3 compressor from BNR
IDx 1050cc primary and IDx1700cc Secondary
Aeromotive Stealth 340 pump
AC Delco D585 Coils
Base fuel pressure 43.5
E-85 continental flex fuel sensor reading 71% E currently
New bio friendly fuel lines front to back
10 micron Stainless Fuel filter
3 bar Subaru Map sensor
PWM module on Fuel pump


Much appreciate it.
-M
Attachments
ELITE DEFAULT_20211216-085710.zip
(57.15 KiB) Downloaded 38 times
12_16_71%e.zip
(1022.07 KiB) Downloaded 45 times

GapJedi_129
Posts: 9
Joined: Sun Sep 01, 2019 9:29 am

Re: Elite 1500, 2 Rotor Turbo W/ trouble beyond 60% throttle

Postby GapJedi_129 » Wed Dec 29, 2021 1:38 pm

In the 12_16_71%e.csv file around 9:20 it shows throttle position changing from 45% to 95%. The AFR started at 13.3 verses desired 12.6 but goes to 13.9 verses desired 12.2. The Transient Throttle data does not do much of an increase. Also the second injection stage happens during this time. So some areas to investigate are the base fuel map in the 4500/5000/5500 rpm / 4.6/8.2 psi range, the transient throttle settings. Depending on any changes you make pay attention to the staging in future logs as you may wish to try to move it to a down somewhat (at least for further testing).

I've found that test/tune at a fixed throttle through the desired rpm/boost range is easier to understand for getting the fuel map correct. Then once that is done, work on the transient throttle settings. 100% throttle is easiest if you car will respond favorably so a test from 4000 rpm through 6000 rpm would remove any transient throttle concerns, 3rd gear or higher allows rpm to increase slowly enough to generate a good log.. A test at lower throttle position is OK but I find it much is harder to hold steady within +/- a few %. Big picture, ensure the fuel map is increasing through rpm/boost in a smooth manner. Since there are places that appear to be nearly 2% lean in the 4500 rpm / 5psi areas and higher you may want to just increase all these value 2% or more and then trim fuel once you see your AFR's are staying under target.

The log shows similar issues at 12:05, 12:45, 14:15, 14:20, 17:23, etc
12:09 shows a possible map issue at 4000-4500 rpm / 6-7 psi

The staging looks like ESP style staging. You may wish to update the software to the NSP, i.e. Nexus software, as the staging control is better in NSP and is controlled more off the data from the base fuel map.

Relisys190
Posts: 11
Joined: Thu Dec 16, 2021 6:00 am

Re: Elite 1500, 2 Rotor Turbo W/ trouble beyond 60% throttle

Postby Relisys190 » Wed Dec 29, 2021 11:48 pm

Thank you Gap for taking the time to review the log and reply. With the information you provided I can see where you mention the 2% lean spot for that range of rpm/manifold pressure. I will start by adding 2 or 3% and try from there

Also, yes it is Elite style injector staging , I have the option for nexus type of staging but have not selected that method as of yet.

For troubleshooting purposes, my 10 micron SS filter has been disassembled, found nothing out of the ordinary, Also my 1400 mile leading plugs inspected and reinstalled and leading plug wires ohm around 400 each for resistance.

Thanks again and will keep you posted with results in my findings.

M

Relisys190
Posts: 11
Joined: Thu Dec 16, 2021 6:00 am

Re: Elite 1500, 2 Rotor Turbo W/ trouble beyond 60% throttle

Postby Relisys190 » Sun Jan 16, 2022 4:43 pm

Problem solved!

Today I swapped in a junkyard set of d585 coils to replace my new* AC Delco d585 set with less than 3000 miles on them. I have reason to believe the Ac Delco set is counterfeit or clone junk that I purchased from Amazon and they can’t supply enough spark ?

With the junkyard set I can WoT again and boosting to 9-10 psi consistently. Was able to hook up with my tuner and clean up the e85 map quite a bit today as well. Car pulls HARD again to redline without issue.


-M

Relisys190
Posts: 11
Joined: Thu Dec 16, 2021 6:00 am

Re: Elite 1500, 2 Rotor Turbo W/ trouble beyond 60% throttle

Postby Relisys190 » Fri Jan 21, 2022 12:14 am

For future reference :

Apparently, the NEWER D585 coils that are being sold by AC Delco or whomever manufactures them simply cannot handle the dwell timing we had set. The OLDER Truck coils (the ones i currently have installed are from the junkyard) will not auto discharge the way the newer models do.

I do not recommend using the NEW D585 coils being sold. I actually plan on migrating over to IGN1-A coils in the very near future. A simple connector change will be required and some new plug wires as well.

Repeat.. I do not recommend any NEW style D585 coils be used for performance applications. The OLDER units are totally fine for budget minded applications as well as ( SUB 400HP) applications.

Best of luck! -Markus


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