dirt track racer 81

iTrader: (45)

yep stays at 14.68 at wot for 60 seconds before it goes into pe

budhayes3

iTrader: (19)

So you have to stay full throttle for a full minute before PE?

dirt track racer 81

iTrader: (45)

yep find you a stock 2500 6.0 tune. when we first started the dyno tuning it took us a while to find that one out. its a 25-30 hp gain too

stranger ranger

could someone please explain to me what PE is? I searched and nothing really is helping to explain it.

kbracing96

iTrader: (26)

PE= Performance Enrichment. It's what takes your air/fuel from 14.7 down to 12 or so for more power.

I was told GM did the delay in the 6.0 and 8.1 to de-rate them and try to help with fuel mileage.

BlackGMC

iTrader: (31)

also when it does go into PE, the commanded AFR changes and it adds in timing by the way of B5908, IMO that is where the power comes in not from the AFR mixture but from the added timing due to the AFR mixture

Mr. Sandog

I thought PE = Power Enrichment?

BlackGMC

iTrader: (31)

it does...

sleeperlqx

iTrader: (3)

your most aggressive tune, will have to be very well calibrated, to add the last ounce of timing possible before detonation.. not good for longevity of a engine. i would say atleast 93 or racing octane is required for this calibration. lots of timing with the perfect AFR at all maps etc.. good luck

NegraRCSB2X4auto

iTrader: (15)

old but why reinvent the wheels what would be better to run 12.0-12.5 afr and 16 timing or 11.5 afr 18deg? which would give more power no dyno? just want some thoughts.