k31th less WHY; more WOT Site Developer 28,990 Member For: 16y 7m 13d Gender: Male Location: Melbourne Posted 13/02/15 12:54 AM Share Posted 13/02/15 12:54 AM (edited) The turbo is a GT42 variant.Tuning will be either headsex or Nizpro, most likely. I have very good options when it comes to tuning here in Melbourne.EDIT: I saw something about higher than ~29psi (~ 2bar stock map sensor) being controlled by putting a higher map sensor in but using the matching voltages (obviously different pressure sensor result, though) to "fool" the pcm's existing calibration to put the adjusted values in the other tables (don't know the technicality of it) a year or so ago... Edited 13/02/15 12:59 AM by k31th Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 2m Gender: Male Location: Perth Posted 13/02/15 12:59 AM Share Posted 13/02/15 12:59 AM How/where are the voltages adjusted tho? If you don't correct the AirMass/Temp/Voltage table the PCM will still reference the Airmass/Temp from the old sensor. Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 5m 23d Gender: Male Location: Adelaide Posted 13/02/15 01:00 AM Share Posted 13/02/15 01:00 AM Is danny still going ?I heard some funky sh*t about 6 months ago with danny and ivan, dunno what eventuated but it was serious catty stuff Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,990 Member For: 16y 7m 13d Gender: Male Location: Melbourne Posted 13/02/15 01:03 AM Share Posted 13/02/15 01:03 AM How/where are the voltages adjusted though? If you don't correct the AirMass/Temp/Voltage table the PCM will still reference the Airmass/Temp from the old sensor.sneaky edit. sorry, not adjusted voltages, just treating the existing MAP voltages as a physically different PSI result (due to bigger MAP sensor).Like I said, I'm no tuner so I don't know the technicality of it and it was headsex who mentioned it, so you're probably right it's only his tuning method that can do it. Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 2m Gender: Male Location: Perth Posted 13/02/15 01:05 AM Share Posted 13/02/15 01:05 AM oh. double double edit? You need to be on your game playing with the values like that (and have a very very robust was of recording what you have done)EDIT- that's actually and interesting train of thought....and I can see how it could be applied now. You would need to apply whatever the correct factor is for the larger maps airmas v volt compared to the stock output to the air mass v load tables and to the spark v load tables.It would require some pretty solid data logging and robust maths to the scale it all though.I would worry that you would loose resolution down low but for some of the only driven on sunday's bigger turbo cars this probably wouldn't be an issue. 1 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,990 Member For: 16y 7m 13d Gender: Male Location: Melbourne Posted 13/02/15 01:08 AM Share Posted 13/02/15 01:08 AM Yeah... not as though headsex is lacking in this sort of ability, too! hahaI do see people getting over 30 PSI with bigger turbo's around the place, these days, so they must be controlling it somehow... or do you think all of those tuners are either using aftermarket ECU's or are just tuning with peg'd MAP's? Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 2m Gender: Male Location: Perth Posted 13/02/15 01:10 AM Share Posted 13/02/15 01:10 AM Refer edit...and yes lots of pegged map's getting around. Stock map is only 2.5bar absolute so it's doesn't take much boost to peg it.So Wastegate plumbing....? Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,990 Member For: 16y 7m 13d Gender: Male Location: Melbourne Posted 13/02/15 01:16 AM Share Posted 13/02/15 01:16 AM Ahh, that'd be why the stock MAP is pegged at around 22-23PSI, lol, 1bar vacuum plus 1.5 bar positive pressure... 1.5 bar is around ~22PSI I did remember reading something around that figure a while ago If it can be done for higher boost it would be worthwhile...it would only have to be done once per MAP sensor and a nice strong engine to take the logging :O hahaI guess I'll find a way to source a lower spring It is a TIAL wastegate so I should be able to find one that fits... Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 2m Gender: Male Location: Perth Posted 13/02/15 01:43 AM Share Posted 13/02/15 01:43 AM I see you lurking Ratter.... Input re larger tmap sensors...? Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 5m 27d Gender: Male Location: @ my laptop Posted 13/02/15 02:32 AM Share Posted 13/02/15 02:32 AM Fudging numbers may fix one area but have adverse affects in another, maybe ok for a race car or dyno car but not ideal for a street carBut there may be an answer coming, I can not and will not say anymore, whether to confirm or deny 2 Link to comment Share on other sites More sharing options...
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