POLL: ALL cars with ESS flash boost vs. IAT

marconi118 · 05-29-2009, 05:35 AM

Someone with ESSflash (better stage 3) could please observe max BOOST with cool IAT (after cruising and in cool weather) and then with hot IAT (long hard run in hot weather) to see of boost rhises in hot IAT???????

the OEM ECU software rhises the boost when IAT is high (up to a certain safety IAT) to compensate for high IAT (less dense air) and give the engine always the same torque. This is "targetted torque" ECU design already used by audi etc..

I do not know (asked many times to ESS but never had a precise answer) if ESS dinan or other flashes act the same way: give same torque at any IAT below a safety guard.

marconi118 · 05-31-2009, 07:11 AM

No one whants to do this test?

It could be great info for N54 comunity

Raflekt · 05-31-2009, 08:04 AM

This is interesting

05-29-2009, 05:35 AM	#1
marconi118 Major 94 Rep 1,184 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	POLL: ALL cars with ESS flash boost vs. IAT Someone with ESSflash (better stage 3) could please observe max BOOST with cool IAT (after cruising and in cool weather) and then with hot IAT (long hard run in hot weather) to see of boost rhises in hot IAT??????? the OEM ECU software rhises the boost when IAT is high (up to a certain safety IAT) to compensate for high IAT (less dense air) and give the engine always the same torque. This is "targetted torque" ECU design already used by audi etc.. I do not know (asked many times to ESS but never had a precise answer) if ESS dinan or other flashes act the same way: give same torque at any IAT below a safety guard.
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05-31-2009, 07:11 AM	#2
marconi118 Major 94 Rep 1,184 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	No one whants to do this test? It could be great info for N54 comunity
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05-31-2009, 08:04 AM	#3
Raflekt First Lieutenant 20 Rep 354 Posts Drives: 2009 AW 135i fully loaded Join Date: Jan 2009 Location: Mexico iTrader: (0)	This is interesting __________________ 2009 AW 135i CP-E CATLESS DPS, AFE EXHAUST , OIL COOLER KIT,FORGE DVV,,BMW PERFORMANCE SIDE SKIRTS AND BMW P . PEDALS, BMW PERFORMANCE SPOILER , BMW PERFOMANCE KIDNEY GRILLS, CODE 3 IC, DIREZZA Z1 STAR SPEC
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