Author Topic: map vs alpha n?  (Read 99 times)

Offline Seight-v8

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map vs alpha n?
« on: April 12, 2021, 11:09:23 pm »
hello all,

just been reading a fairly new rover v8 tuning book......and the section on ECU tuning, says that non turbo cars, with map readings under 65kpa, and large overlap cams, would be better on ALPHA N (TPS) maps instead of speed density maps......

So if this is true?, then mine would meet all of these requirements......but ive never used anything other than SD map based.....

i don't want to start down a road that makes it worse and has other side effects......

So thought i would ask.

Engine:Rover V8 4600cc
Vems Firmware:V1.2.38, GPS, SDcard, LCD & Dual lambdas, Wasted spark, 36-1 trigger, Cam Sync & Bluetooth serial.