Rtek AFR Tuning methods
#401
Senior Member
^ nice ! i thought your car was gone for some reason. good to know this thread is still alive. my car is still running super rich at 10 psi, but spins all the way through first with 255 tires in the back i would really like to know what my torque curve looks like. race season is starting soon so i will probably start tinkering again and asking questions
#402
Enthusiast
iTrader: (5)
^ nice ! i thought your car was gone for some reason. good to know this thread is still alive. my car is still running super rich at 10 psi, but spins all the way through first with 255 tires in the back i would really like to know what my torque curve looks like. race season is starting soon so i will probably start tinkering again and asking questions
#404
So, I just got through reading this thread over again. There is a lot of good information for those of us starting out using the rtek and upgrading to bigger injectors. I just installed 1000cc sec injectors, moved 680cc to the prim, and currently run rtek 2.1.
First of all, I was wondering if you guys still recommend using the timing maps that were given at the beginning of the thread. I have installed them now and currently removing fuel due to low afr's.
I was also curious about people not using the 02 sensor. Is it something that is recommended when there is a lean issue during cruise, light load.
My set up 680cc prim, 1000cc sec, rtek 2.1, t04s hybrid, street port, rewired fuel pump, and fuel pressure set to 38psi. thanks
First of all, I was wondering if you guys still recommend using the timing maps that were given at the beginning of the thread. I have installed them now and currently removing fuel due to low afr's.
I was also curious about people not using the 02 sensor. Is it something that is recommended when there is a lean issue during cruise, light load.
My set up 680cc prim, 1000cc sec, rtek 2.1, t04s hybrid, street port, rewired fuel pump, and fuel pressure set to 38psi. thanks
#405
I would still recommend the timing maps. But with the o2 sensor, it's a toss up. It seems to run richer at idle and in cruise w/o the o2 sensor... maybe I don't have enough neg. fuel correction?? I plan to try the simulated narrowband output on the wideband next.
Looking forward to seeing your results with the To4s... & Good Luck!
Looking forward to seeing your results with the To4s... & Good Luck!
#406
Thanks for the quick reply. Once I hook up the wideband to the rtek as an input, I can log it along with the other stuff. I would like to post up some results once I see better afr's at wot. Still in the low 10's
#407
Hit 13psi this morning going for 14ish this week. Here are some images of my maps. Had an issue with the pulsation dampener (now a banjo) and a small coolant leak near the turbo/DP (still leaking )
My computer's hard drive crapped out, so I'm using the palm to review logs and I lost all my old stuff... Crappy.
My computer's hard drive crapped out, so I'm using the palm to review logs and I lost all my old stuff... Crappy.
#408
Rotary Revolutionary
iTrader: (16)
Congrats on tuning 13psi, should be feeling pretty quick! However why you allowed a PD to remain on your car this long is mind boggling, lol. As far as the leak, I hope its not that annoying coolant passage o-ring, what a pain that was.
Sucks about your comp, I still need to get my new one (windows 7) to work with the old *** palm desktop. Can't wait for this android rtek business to be released, the world will be a better place.
Once my car gets back from the body shop I'll finish breaking in my engine and get to tuning the high-comp setup. So far it looks thirsty, running my old 8.5cr maps its getting up to 12.x afr below 5 psi, these same maps were in the 10's or low 11's up to 10 psi on the old setup.
Sucks about your comp, I still need to get my new one (windows 7) to work with the old *** palm desktop. Can't wait for this android rtek business to be released, the world will be a better place.
Once my car gets back from the body shop I'll finish breaking in my engine and get to tuning the high-comp setup. So far it looks thirsty, running my old 8.5cr maps its getting up to 12.x afr below 5 psi, these same maps were in the 10's or low 11's up to 10 psi on the old setup.
#409
Senior Member
.....Once my car gets back from the body shop I'll finish breaking in my engine and get to tuning the high-comp setup. So far it looks thirsty, running my old 8.5cr maps its getting up to 12.x afr below 5 psi, these same maps were in the 10's or low 11's up to 10 psi on the old setup.
On to your setup: What apex seals did you settle with? New rotor housings or did they get the Goopy resurfacing treatment. Plan to run water/alky injection? And what's your clutch setup?
Please reply via PM if you prefer. thx
#410
Rotary Revolutionary
iTrader: (16)
High comp is AWESOME, I will never run another 8.5cr engine ever.
It goes great with the Rtek because the theorized boost limit for high comp is around 15 psi where the Rtek is limited by the stock boost sensor anyway. Also, you need to have control over timing to run high comp safely, which the Rtek provides.
It goes great with the Rtek because the theorized boost limit for high comp is around 15 psi where the Rtek is limited by the stock boost sensor anyway. Also, you need to have control over timing to run high comp safely, which the Rtek provides.
#413
Hey Nick, Thanks for posting some of your fuel settings. I was able to adjust mine somewhat similar to yours. My afr's are now in the 12's and the car doesn't cut out in the 5-6k range.
thanks again
thanks again
#414
Ok, Coolant leak has been fixed, going to tidy up tonight then to get it registered. Then get vids and logs!! Where's everyone else at with their RTEK 2 setups?
turbo2ltr, any progress/info on the web based map viewer? It would be great for sharing ecu settings/setups!
turbo2ltr, any progress/info on the web based map viewer? It would be great for sharing ecu settings/setups!
#416
rotorhead
iTrader: (3)
I really wish the Rtek could give you the option to reprogram the fuel cut instead of eliminating it altogether. The problem is, the marketing says that overboost fuel cut is a bad thing... when really it's just a normal safety precaution that ECUs use. On modern turbo cars, when the engine overboosts the ECU is smart enough to first lower the boost control solenoid duty cycle, then try close the electronic throttle, and as a last resort cut fuel.
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demetlaw
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