Pretzel EMS makes MAGIC MUMBO ! Member 192 Member For: 20y 11m 29d Location: Melbourne Posted 17/02/05 09:42 AM Share Posted 17/02/05 09:42 AM So far there are 14 members, here stating, that they are making over peters agreed figure of 235rwkw =280-300fwkw how many more out there? Brian?Who else?Dynowog say's its not looking good for Peter?Pretzel Link to comment Share on other sites More sharing options...
ASNU Member 261 Member For: 21y 10m 15d Location: Brooklyn Posted 18/02/05 12:53 AM Share Posted 18/02/05 12:53 AM =PretzeSo far there are 14 members, here stating, that they are making over peters agreed figure of 235rwkw =280-300fwkw how many more out there? Brian?Who else?Dynowog say's its not looking good for Peter?PretzelASNUPretzel.Maybe APS are determining the safe power output for consistant long term power?.When I first had the stage 1 fitted my auto ute pulled on the DD dyno over 235rwkw but was bought back to 218rwkw by my tuner who I have no reason to doubt.Then when my stage 2 was fitted it pulled the very first run 312rwkw but again detuned to 295rwkw for consistant long term figures,Since I have done 98000km in my ute now with no hassles its not a bad test I spose apart from my fuel pump.Probley every chip on the market would pull more than an advertised or suggested safe power figure but for how long.For a start the fuel pump is working way to hard for its application and this has to be factored into when pushing power levels I think.What about the standard intercooler as well,Maybe alright for 1-2 quick runs then useless when running more boost.Better off to over engineer than push the limits of the standard systym in my opinion,Every one has choices but.Please note that this is not a rapp for APS,Just the path I went down in modifying my car. Link to comment Share on other sites More sharing options...
aps Member 1,505 Member For: 21y 9m 4d Posted 18/02/05 01:25 AM Share Posted 18/02/05 01:25 AM OK, time for some feedback on the DD dyno power runs today. As the attached dyno sheets indicate, the car ran 255RWKW on the 10PSI map, and 234RWKW on the 8PSI map. The runs were done on a hot day (IT 40) and, from what I can see, the AFR's are good.<{POST_SNAPBACK}>Now this is all starting to make sense to me and I can see why the power figures are higher than expected. Looking at the dyno graph I see:1) Ambient temperature is at 25C and the air inlet temperature is 40C. This will cause the dyno dynamics software to build in a compensation factor and you then end up with an artificially high power figure.2) The air fuel ratio is running leaner than ideal for a turbo engine keeping in mind long term engine durability. The air fuel ratio should not exceed 12:1/0.82 lambda particularly in the higher rpm range. Food for thought and I'm in no way putting down the edit product rather just trying to make sense of the power figures posted and discussing what air fuel ratio is considered safe for a turbocharged XR6T engine.Peter Link to comment Share on other sites More sharing options...
Guest jteale Guests Posted 18/02/05 01:27 AM Share Posted 18/02/05 01:27 AM So far there are 14 members, here stating, that they are making over peters agreed figure of 235rwkw =280-300fwkw how many more out there? Brian?Who else?Dynowog say's its not looking good for Peter?Pretzel<{POST_SNAPBACK}>Pretzel ... My experience is ... my car ran much higher than current numbers on the Dyno ... but was de-tuned for long term reliability ...People round here don't get these facts into their thick heads ... I have never read where APS said it can't be done ... just that it is not "SAFE" and within what they consider acceptable on a customers car ... run your numbers, blow up gearboxes ... its your car ... go for it ... maybe all will be OK ... maybe not ... but I personally like mine too much to see it off the road!Flame me all you like ... but these are the facts ... Cheers, Jason. Link to comment Share on other sites More sharing options...
Geeseman Donating Members 1,805 Member For: 21y 1m 14d Location: Sydney Posted 18/02/05 01:32 AM Share Posted 18/02/05 01:32 AM Flame me all you like ... but these are the facts ... Cheers, Jason.Flame, Flame, Flame, Flame, Flame, Flame, Flame, Flame, Flame, Flame, Link to comment Share on other sites More sharing options...
Guest jteale Guests Posted 18/02/05 01:33 AM Share Posted 18/02/05 01:33 AM Flame me all you like ... but these are the facts ... Cheers, Jason.<{POST_SNAPBACK}>Flame, Flame, Flame, Flame, Flame, Flame, Flame, Flame, Flame, Flame, <{POST_SNAPBACK}>Trust you to start ........ :lol: :lol: :lol: And yes yours is bigger... Cheers, Jason. Link to comment Share on other sites More sharing options...
RAPHOON Donating Members 1,776 Member For: 21y 5m 13d Posted 18/02/05 01:38 AM Share Posted 18/02/05 01:38 AM OK, time for some feedback on the DD dyno power runs today. As the attached dyno sheets indicate, the car ran 255RWKW on the 10PSI map, and 234RWKW on the 8PSI map. The runs were done on a hot day (IT 40) and, from what I can see, the AFR's are good.Now this is all starting to make sense to me and I can see why the power figures are higher than expected. Looking at the dyno graph I see:1) Ambient temperature is at 25C and the air inlet temperature is 40C. This will cause the dyno dynamics software to build in a compensation factor and you then end up with an artificially high power figure.2) The air fuel ratio is running leaner than ideal for a turbo engine keeping in mind long term engine durability. The air fuel ratio should not exceed 12:1/0.82 lambda particularly in the higher rpm range. Food for thought and I'm in no way putting down the edit product rather just trying to make sense of the power figures posted and discussing what air fuel ratio is considered safe for a turbocharged XR6T engine.PeterI believe the 25 degrees was left in to ensure all the dyno settings were that same as the last time the car was on the dyno.It was a hot day, as seen in the intake temperature.We did not run the stock map due to time constraints.Give me a cool day and I'm sure she will produce.That said, Dynologic 265RWKW, DD 255RWKW.What else does the tune have to prove? Link to comment Share on other sites More sharing options...
aps Member 1,505 Member For: 21y 9m 4d Posted 18/02/05 02:00 AM Share Posted 18/02/05 02:00 AM OK, time for some feedback on the DD dyno power runs today. As the attached dyno sheets indicate, the car ran 255RWKW on the 10PSI map, and 234RWKW on the 8PSI map. The runs were done on a hot day (IT 40) and, from what I can see, the AFR's are good.<{POST_SNAPBACK}>Now this is all starting to make sense to me and I can see why the power figures are higher than expected. Looking at the dyno graph I see:1) Ambient temperature is at 25C and the air inlet temperature is 40C. This will cause the dyno dynamics software to build in a compensation factor and you then end up with an artificially high power figure.2) The air fuel ratio is running leaner than ideal for a turbo engine keeping in mind long term engine durability. The air fuel ratio should not exceed 12:1/0.82 lambda particularly in the higher rpm range. Food for thought and I'm in no way putting down the edit product rather just trying to make sense of the power figures posted and discussing what air fuel ratio is considered safe for a turbocharged XR6T engine.Peter<{POST_SNAPBACK}>I believe the 25 degrees was left in to ensure all the dyno settings were that same as the last time the car was on the dyno.What else does the tune have to prove?<{POST_SNAPBACK}>You missed the entire point, ambient temp being 25C and the air inlet being 40C and the dyno computer compensates for the difference in the temperatures. That's why the power figure measured is higher than the REAL figure, we can all play these games though it does not make the power figures accurate. Peter Link to comment Share on other sites More sharing options...
RAPHOON Donating Members 1,776 Member For: 21y 5m 13d Posted 19/02/05 12:49 AM Share Posted 19/02/05 12:49 AM OK, time for some feedback on the DD dyno power runs today. As the attached dyno sheets indicate, the car ran 255RWKW on the 10PSI map, and 234RWKW on the 8PSI map. The runs were done on a hot day (IT 40) and, from what I can see, the AFR's are good.Now this is all starting to make sense to me and I can see why the power figures are higher than expected. Looking at the dyno graph I see:1) Ambient temperature is at 25C and the air inlet temperature is 40C. This will cause the dyno dynamics software to build in a compensation factor and you then end up with an artificially high power figure.2) The air fuel ratio is running leaner than ideal for a turbo engine keeping in mind long term engine durability. The air fuel ratio should not exceed 12:1/0.82 lambda particularly in the higher rpm range. Food for thought and I'm in no way putting down the edit product rather just trying to make sense of the power figures posted and discussing what air fuel ratio is considered safe for a turbocharged XR6T engine.PeterI believe the 25 degrees was left in to ensure all the dyno settings were that same as the last time the car was on the dyno.What else does the tune have to prove?You missed the entire point, ambient temp being 25C and the air inlet being 40C and the dyno computer compensates for the difference in the temperatures. That's why the power figure measured is higher than the REAL figure, we can all play these games though it does not make the power figures accurate. PeterOh FFS,Jetute, as you will have your flasher back today, could you please contact Jeff @ F.I.S.T. to book a time for a dyno run. Just ask the boys to:1. Do a run on the stock map.2. Compare this to the run done on the dyno day.3. Change the ambient temp to that on the day for the 2 power runs.I sure Jeff and the boys will be happy to do this for you. I'll try make it down to see the runs as well.Just remember, the figures produced may be inaccurate as Jupiter, Mars and Earth may not be in perfect alignment at the time you do the dyno pulls. Does anyone in Melbourne have dyno charts for their flash tunes that they would be willing to post on this forum? Link to comment Share on other sites More sharing options...
Romulus Donating Members 1,279 Member For: 19y 11m 7d Location: Perth Posted 19/02/05 02:03 AM Share Posted 19/02/05 02:03 AM OK, time for some feedback on the DD dyno power runs today. As the attached dyno sheets indicate, the car ran 255RWKW on the 10PSI map, and 234RWKW on the 8PSI map. The runs were done on a hot day (IT 40) and, from what I can see, the AFR's are good.<{POST_SNAPBACK}>Now this is all starting to make sense to me and I can see why the power figures are higher than expected. Looking at the dyno graph I see:1) Ambient temperature is at 25C and the air inlet temperature is 40C. This will cause the dyno dynamics software to build in a compensation factor and you then end up with an artificially high power figure.2) The air fuel ratio is running leaner than ideal for a turbo engine keeping in mind long term engine durability. The air fuel ratio should not exceed 12:1/0.82 lambda particularly in the higher rpm range. Food for thought and I'm in no way putting down the edit product rather just trying to make sense of the power figures posted and discussing what air fuel ratio is considered safe for a turbocharged XR6T engine.Peter<{POST_SNAPBACK}>Interesting. The dyno sheet for my run reads:BP:100.5 RH:25 AT:35 IT:35 RR:015 TN:5.002 CK:950Car pulled 260.7rwkwDoesn't look like there was any temperature correction there as the IT and AT were the same. That day the temp peaked at 38 deg C.I wonder how much compensation the dyno made there. Link to comment Share on other sites More sharing options...
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