Thread: Project Crossfire - a Rotrex Supercharged Limited!
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Old Dec 10, 2011 | 09:15 AM
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From: Houston, TX
Default Re: Project Crossfire - a Rotrex Supercharged Limited!
Originally Posted by LantanaTX
I would reccomend sending the AEM to Ebay and let Jerry at Eurocharged who is right in the same town as you and take a look at the tuning. At this point I would have hard time believing that jerry could tune in the ECU anything you hope to accomplish withe the AEM. if you end up selling some kits, I believe you will have better luck with a system that requires a EC tune that requiring someone to monkey around with an AEM. The Jerry tune would also save money. I had previosly talked to Jerry about this concept and he felt the Kompressor ECU will get you in the ball park and he could tune to perfection. Eurcharged has experience with running different forms of boost on the SRT ECU. They tuned the SRT that switched from factory supercharger to a turbo. You really should let him take a look at it. I would also reccomend that you use the SRT fuel system from pump, filter/regulator to injectors. I believe you stated you are using the SRT injectors already. You might want to look at the rest of the system and make sure it is equivilant to the SRT. Good luck with this and I hope it works out great!
I probably open myself up to this level of input due to my “thinking out loud” at times or when the stress in my life has me considering an easier direction. I’ve been all over the place lately but I haven’t had my mind on this 100%.

However, regardless of my minor diversions from my “core beliefs” it all comes down to this. If I ever truly ended up with a car that was “tuned” by someone else and I didn’t have the ability to tune, tweak, and experiment myself, it would be the death of that car for me. The tinkering never stops in my garage and I always have something I want to try; cams, exhaust, pistons, pulley, etc. I’ve been spoiled in the past with either full ECU replacements and/or vendor level access to tuning software. With all due respect, I cut my teeth on road tuning, graduated to running a dyno, and tune vehicles long distance all over the country. I could never truly give up my pride and joy to someone else. If the SRT-6 ecu gets me 90% there and I can do the rest with the AEM than so be it. Hell, if it got me 100% there that would be cool but it still doesn’t account for the future. I’ll always need something to move forward so the AEM or a better replacement will always be on the table.

And of course, IF I reached a point of equilibrium where it would be fair to all involved to make a kit, the kit would take a different route for ease of use and installation. But I’m never personally going to drive around with my car in that configuration unless it is for testing.

If you really want to help, maybe you could take it up a couple of notches, refrain from stating the obvious, and help with something more substantial:

- Post a full translation of the Das menus in developer mode or a way to switch to English mode
- Find some coding strings and share
o Found any tricks to increasing line pressure, shift patterns, or other
o Any ways to increase knock sensitivity, timing reduction ramp up rate, max pull limits
o Any round about ways to increase or decrease spark or fuel – i.e. changing the octane rating in the ECU therefore a global increase or decrease in spark
- Dig up some factory spark and fuel tables to use as a reference
o List the overall difference in curves and associated AFRs between NA and SRT with EGR taken into account
- What boost curve is the srt-6 ecu is expecting to see and will I see the supercharger malfunction error if the Rotrex curve is lower; any way to change it without using the AEM to adjust the map sensor and re-tune?
- List the specs on the N/A fuel pump at stock psi and its flow with and without a boost signal attached
o Where does it max out
o Is it truly a 1:1 RRFPR or other
o Supported HP based on boost with increased fuel pressure
o Does the fuel pump lower psi with vacuum and will I have to work around
o What is the first bottleneck to address in the N/A fuel system
 
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