Alright, I'm getting ready to install a s5 hybrid 60-1 turbo in my s4 tII. I'm going to be upgrading my injectors as I am currently running a 550/750 setup. My plan is to move the 750's to the primary and then put something bigger in the secondaries..probably 1000cc +. So what kind of range will the 2.0 support for turning down the fuel? I realize the new update should have m ore range, but will it have the capability to turn down say 1680cc secondaries? I really don't need 1680's but it's kind of hard to find anything between 1000cc and 1680cc for our cars and I'd rather be on the too much fuel side than too little. So what are the limitations of the 2.0 as I have it now and how much range will it have after the update?

 

I think 750/1680 injector combo may be too much fuel to correct for in RTEk alone as it is now.. but i would say it is doable with the 30% correction in the next hardware revision

im running 1000cc secondaries, and at only 9psi (running off the stock wastegate spring), i have the correction maxed at +15% with the 720/720 preset. this setup dyno'd 250whp with afr near 12.. not too rich at all

i think it depends on how well your motor flows air, i dont think you could correct for that much fuel on a stock setup (w/rtek), but you could with more porting, intake/exhaust, etc

 

yea...that's what I'm afraid of. I REALLY wish this new update was out already...seems like it's been talked about for half a year now. As far as airflow...just about everything that can be ported on my car is ported..haha Anybody know aany other source for injectors in the 1200-1500cc range other than the modified ones from RCEng for $200 a piece?

 

Old thread revival, but will the 550/1680 or 720/1680 combo work with a 2.1 now? I have a BNR 4 looking for 350-400 rwhp and I heard 1000 secondaries aren't quite enough...
Any thoughts?

 

The maximum correction is 38%, so the largest you should use would be about a 1000cc injector on a 720cc preset. Low throttle and injector transition will suffer badly with huge secondaries.