So I was considering getting an AEM EGT guage and feeding the output to the MPVI3 via a prolink analog channel. kingtal0n did a good writeup on timing tuning via EGTs in the post "Timing tuning in boost". Using a wideband it is "easy" to dial in lambdas for the VE table, PE tuning etc.... but timing is where the danger lies. Since most of us do not have direct access to a dyno or want to travel to and pay for repeated dyno sessions I thought this method would be an accurate way to get "good" timing values albeit not tip of the sword most power but better than seat of the pants tuning by far (and way safer). kingtal0n also made a great explanation of why a peak torque dyno tune can be disastrous on the street (in the "wild" load and temp mixed with edge timing settings can go boom or clank clank). For more information on using EGT to tune and the why on were to set the timing read the post linked below. I would love to hear from kingtal0n on how he would use an EGT guage for street tuning timing. My plan is to log EGT against cylinder air mass and engine speed as the base timing table is. Save the table adjust timing, rinse and repeat until I find the timing that causes EGT to rapidly increase then add a couple degrees and save it as the timing value for the cell(s) This seams like a good plan to get timing to where I know its not too retarded and not close to detonation. I will still go to the dyno on occasion for refining my maps but they should be really close with this timing tuning and VE refinement using a wideband. Thoughts?
Timing-tuning-in-boost
AEM EGT Guage 30-0305
HP Tuners Pro-Link-Plus
Reply With Quote
Originally Posted by gtstorey
