RU18YET Posted January 23, 2013 Report Share Posted January 23, 2013 My friend tuned my truck with HP Tuners and I am about to get spray. What are my options for switching between 2 tunes? What do yall recommend i do? Quote Link to comment Share on other sites More sharing options...
chpspecial Posted January 23, 2013 Report Share Posted January 23, 2013 (edited) You can get a good nitrous controller that ties into your iat sensor, so that when you arm the system it pulls timing. This will require tuning to properly set up, or get the autocal from efilive, or just drive on a nitrous tune, n/a the truck will be a little sluggish, but manageable. Edited January 23, 2013 by chpspecial (see edit history) Quote Link to comment Share on other sites More sharing options...
RU18YET Posted January 24, 2013 Author Report Share Posted January 24, 2013 Alright. i think i am going to do the resistor on a switch to control the IAT and have my tuner set it for whatever shot i want to run. Anyone else do this on a SSS? Quote Link to comment Share on other sites More sharing options...
Krambo Posted January 24, 2013 Report Share Posted January 24, 2013 Running a wet or dry shot...what size? Quote Link to comment Share on other sites More sharing options...
GI.SS Posted January 24, 2013 Report Share Posted January 24, 2013 how would this work with an autocal? have 2 seperate tunes saved on to it and when he goes to spray just load that tune into the truck and when done, switch back? Quote Link to comment Share on other sites More sharing options...
rdavid0412 Posted January 24, 2013 Report Share Posted January 24, 2013 how would this work with an autocal? have 2 seperate tunes saved on to it and when he goes to spray just load that tune into the truck and when done, switch back? How would that work if your were just to pull up next to someone? Quote Link to comment Share on other sites More sharing options...
RU18YET Posted January 24, 2013 Author Report Share Posted January 24, 2013 Id run a 100 shot. wet. and you get your tuner to just set lets say 139-141*f (whatever ohms that is) IAT reading to retard the timing by 4 degrees and then at the flip of a switch you can retard timing. Most seem to use the arming switch for the nitrous, as the switch for the IAT timing retard trick. I was wondering if anyone has done this on a SSS? It seems like our IAT is at the same spot as the MAF right? Quote Link to comment Share on other sites More sharing options...
GI.SS Posted January 25, 2013 Report Share Posted January 25, 2013 for a 100 wet shot you dont need to pull timing. anything over that then you have pull timing. i wouldnt run more than a 100 on the street but if i were to have a race set up, id rather load a different tune then the switch you are talking about.but thats just me. besides anything more than a 100 and itll most likely blow the tires off on the street. Quote Link to comment Share on other sites More sharing options...
chpspecial Posted January 25, 2013 Report Share Posted January 25, 2013 General rule of thumb is to pull 2* of timing per 50hp shot. The only way around it is to have a dyno verify power and log the pcm for timing and KR Quote Link to comment Share on other sites More sharing options...
RU18YET Posted January 26, 2013 Author Report Share Posted January 26, 2013 It wont be a strictly race setup. It will be a DD street/strip truck. I will probably pull 4* of timing using the IAT trick. I also have AWD so I don't think I'll blow the tires off but that would be pretty bad@ss! haha Quote Link to comment Share on other sites More sharing options...
RU18YET Posted January 28, 2013 Author Report Share Posted January 28, 2013 If at first I just use a WOT switch should I spray it off the line(foot brake to about 1.5k or 2k)? or should I arm it right after I leave(around 3k-3.5k)? Quote Link to comment Share on other sites More sharing options...
RU18YET Posted January 30, 2013 Author Report Share Posted January 30, 2013 Also what pressure should the FPSS be set at? 40psi? Quote Link to comment Share on other sites More sharing options...
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