Rtek Forum Discuss the Rtek 2.0 and other Rtek ECU's

Rtek AFR Tuning methods

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Old 03-23-12, 08:25 AM
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Originally Posted by Nick_d_TII
Rebuilt turbo. 14psi soon. Logs & vids to come.
^ 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
Old 03-23-12, 10:41 AM
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Originally Posted by bikeboy23332
^ 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
you going to DGRR this year?
Old 03-24-12, 12:35 AM
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Originally Posted by rx7 SE
you going to DGRR this year?
had a blast last year but i think im going to pass and go with some friends in the fall.
Old 03-25-12, 03:19 PM
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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
Old 03-25-12, 07:49 PM
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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!
Old 03-25-12, 11:36 PM
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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
Old 07-03-12, 10:02 AM
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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.
Attached Thumbnails AFR Tuning methods-imag0027.jpg   AFR Tuning methods-imag0028.jpg   AFR Tuning methods-imag0030.jpg   AFR Tuning methods-imag0033.jpg   AFR Tuning methods-imag0034.jpg  

Old 07-04-12, 02:28 PM
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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.
Old 07-05-12, 01:22 PM
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Originally Posted by sharingan 19
.....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.
Interesting re the afrs your now seeing. Mind giving your initial take on the high comp? MIne will be appart very soon and I'm torned wether to stay low or go high. Mine is "aggressively" ported (so said by engine builder) so me think by going high comp low-mid response specially should improve noticebly. My concern is hitting 13 psi safely w/ the all we have 91 octane.

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
Old 07-05-12, 03:44 PM
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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.
Old 07-05-12, 04:51 PM
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Originally Posted by sharingan 19
As far as the leak, I hope its not that annoying coolant passage o-ring, what a pain that was.
^This and it sucks. It hauls ***, and is runs pretty good, but it leaks a coolant onto the upper mani overnight, then drains onto the turbo and smokes like a bitch.

Can I remove the lower intake manifold w/o removing the turbo and exhaust mani??
Old 07-05-12, 06:23 PM
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You have to remove the turbo to get the LIM off, the mani doesn't have to be removed.
Old 07-12-12, 08:39 PM
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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
Old 05-01-13, 05:48 PM
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Smile

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!
Old 05-01-13, 06:26 PM
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well my map sensor hose blew off from too much boost, the plastic broke. so rebuild time here.
Old 05-04-13, 01:26 PM
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Originally Posted by lastphaseofthis
well my map sensor hose blew off from too much boost, the plastic broke. so rebuild time here.
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.
Old 05-29-13, 02:23 PM
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Well, I probably won't be posting in here for a while since, my computer died leaving me no hotsync or PL viewer, my palm died leaving me with no Rtek software, and I can't get my car registered w/o passing emissions.. effing sob story I know..

Old 05-29-13, 02:55 PM
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My comp died too, so no nap adjustments for me. My plam ran out of battery too, so now the software is gone, I can't even check error codes. This android interface needs to happen yesterday!
Old 06-26-13, 10:56 AM
  #419  
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Sold my 7.

Good luck guys, I hope this thread helps other Rtekies...
Thanks for all the help and support!
Old 06-26-13, 11:32 AM
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Old 06-26-13, 12:38 PM
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Old 11-30-13, 11:32 AM
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Anyprogress towards Android app?
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