SimonR Posted October 31, 2004 Share Posted October 31, 2004 Working my way through the upgrades, I've now reached the stage where it's time to look at AFR and ignition timing. I've pretty much decided on an Emanage but now I have started to read that when I (eventually) install a Nitrous Oxide kit I will have timing issues. As I understand it, the benefit of the Emanage is that it can advance timing and give extra fuel - giving power benefits. However, I also understand that Nitrous requires extra fuel but retarded timing. Presumably this would require two switchable settings on the Emanage - one for nitrous and one for advanced timing. Is this how it works? Or am I missing something? Sorry if this has been covered before. I searched but couldn't find anything. Link to comment Share on other sites More sharing options...
dude Posted October 31, 2004 Share Posted October 31, 2004 Depends on the amount of NOS you want to use and how dude , i never bothered with the retarding bit but i will when i go standalone . Dude:flame Dev Link to comment Share on other sites More sharing options...
SimonR Posted October 31, 2004 Author Share Posted October 31, 2004 Without retard, did you get any det problems? I'll probably only go for a 100 shot as the gearbox on the Soarer is only supposed to be good for 500bhp. Link to comment Share on other sites More sharing options...
SimonB Posted October 31, 2004 Share Posted October 31, 2004 Originally posted by SimonR Presumably this would require two switchable settings on the Emanage - one for nitrous and one for advanced timing. Is this how it works? Or am I missing something? Don't know anything much about nitrous, but as far as the Emanage goes, the main unit can only hold one setup. You could download a different one from a laptop as needed but that's not really practical, or if you have the E01 or Profec E01 you can store several setups on the SD card and download them to the Emanage as needed. You'd have to do it manually though, there's no way of doing it automatically when you flick a switch or anything. You'd need a standalone for that. Link to comment Share on other sites More sharing options...
Guest Terry S Posted October 31, 2004 Share Posted October 31, 2004 Simon, remember Dude is using high octane fuel whilst running Nos. Link to comment Share on other sites More sharing options...
SimonR Posted October 31, 2004 Author Share Posted October 31, 2004 Not Optimax, then? Link to comment Share on other sites More sharing options...
Guest Terry S Posted October 31, 2004 Share Posted October 31, 2004 Originally posted by SimonR Not Optimax, then? He probably has tried it on optimax, but race fuel generally Link to comment Share on other sites More sharing options...
SimonR Posted October 31, 2004 Author Share Posted October 31, 2004 So the Emanage and Nitrous are mutually exclusive unless I go high-octane? I believe that I'll still need extra fuelling for the NOS, so are my options: 1/ Keep a boot-load of octane booster for when I want to go racing? 2/ Look for another piggy-back unit that will let me switch between ignition timing "modes"? What are you other guys who use Nitrous doing? Link to comment Share on other sites More sharing options...
Guest Terry S Posted October 31, 2004 Share Posted October 31, 2004 No, it may work fine, but you will need to watch the timing very closely. Link to comment Share on other sites More sharing options...
THOR Racing Posted November 1, 2004 Share Posted November 1, 2004 You can run NOS without retarding up to around 75->100 shot. BUT this is highly dependant on boost and compression ratio you're running etc etc.. Using a wet system is always recommended as you can actually make it slightly richer to compensate for the lack of ignition retard. But to get the best out all the time it's best to have control over NOS jet, Fuel jet and ignition. i.e. a system that adds retard in for NOS when NOS is running and not at any other time. BUT you've got to be serious to be putting that sort of gear in. Many cars we do run 75->100 shot easily without retard but they MUST be wet systems in my opinion. Trouble with NOS is if you're using it to increase the bottom before the turbo spools up then this is when you need to control ignition as they run high ignition advance normally to help engine pick up and hence turbo spool up. For top end oomph then you can normally get away with correct fuel/NOS ratio. It's the peak torque area around 3->4000rpm you need to watch. Pete Link to comment Share on other sites More sharing options...
SimonR Posted November 7, 2004 Author Share Posted November 7, 2004 Thanks for all the replies folks. I have been in contact with Dastek, who advise that the Unichip has the following functions: Alter ignition timing in a 3D map down to 0.1degree resolution. Alter fuel mixture in a 3D map by +-50%. Control variable valve timing. Control variable induction systems. Control turbo wastegate solenoid systems. Record maximum boost pressure. Record maximum RPM. Water injection control. Nitrous oxide control. Automatic secondary map when water or nitrous is active. Automatic switch back to primary map when water or nitrous is low or de-activated Road speed governor delimiting. Calibration of electronic speedometers. Conversion of electronic speedometers from KMH to MPH. Drive additional fuel injectors, with variable blend control. Launch control. Full throttle gear changes. Idle speed stabilization. Conversion to individual throttle bodies on certain cars. Conversion of mechanical injection systems to full 3D fuel & ignition control. Conversion from flap type Air Flow meters to less restrictive Hot Film meters. Multiple maps to suit different fuels. Shift lights Alter or implement rev limits Alter or implement boost limits So this is looking like the favorite at the moment and it's not horrendously expensive Link to comment Share on other sites More sharing options...
AndyTT Posted November 17, 2004 Share Posted November 17, 2004 Simon, Bearing in mind that NOS is very dependant on the temp of the the bottle, the diff can make so much difference on how much NOS is delivered, i.e. the higher the temp of the bottle, the more the pressure the NOS exits from the bottle, then you need more fuel to keep things right in the combustion chamber. If things go lean, then you are risking piston melt down, cause NOS is so EXTREME without the proper set up Andy Link to comment Share on other sites More sharing options...
SimonR Posted November 17, 2004 Author Share Posted November 17, 2004 Hi Andy, Yes and engine meltdown will be an excuse for me to buy a Supra TT engine and fit it. BTW, wait until you see the alloys that I have bought. 18's of a GS300 Sport with 275's on the back. No more wheelspin for me! Link to comment Share on other sites More sharing options...
AndyTT Posted November 19, 2004 Share Posted November 19, 2004 SimonR, Good to hear from you buddy, that set-up with the LSD will certainly get you off the line @ Crail Andy Link to comment Share on other sites More sharing options...
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