I remember that a while ago skiptowncat had some weird KR issue, with the knock retard dissipating fairly slow after the initial occurrence and he increased the Knock Retard Decrement Step sizes from 640 to like 960 or so and the behavior he observed after the change matches the description in Versatuner
Now, my e-tuner (Lex) set them for me from 640 to 400. And it's also this:
http://www.mazdaspeedforums.org/forum/f ... post887019
http://www.mazdaspeedforums.org/forum/f ... post887756
I'm pretty sure it's about the same timers so now I wonder what's the catch. Is the 640 value at the top of some Gaussian distribution bell and any value lower or higher than that will lead to quicker dissipation or what?!
Knock retard timers
Knock retard timers
Last edited by mituc on January 7th, 2013, 1:50 am, edited 1 time in total.
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071 gen2, ~550BHP @35PSI
2008 Icy Blue Mazda CX7
Built engine and stock exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 360-ish BHP
Built engine + WMI + GTX3071 gen2, ~550BHP @35PSI
2008 Icy Blue Mazda CX7
Built engine and stock exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 360-ish BHP
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Re: Knock retard timers
Hmm.. I would like to know the answer to this too.
Re: Knock retard timers
Me three
Versatune,FMIC,3"SRI,3"TIP,HKSSSQv4,3"Turboback,Devil'sOwnWMIStg2kit,AutotechHPFP,JBREGRdelete,JBRBSD&Baffleplate,RacingLogiccoilovers,TRZTMM,AWRPMM,SURERMM,SUREShortcut&Counterweight,SUREg/knob,ApexiTT,HDIStg2Evoboostcontroller
Re: Knock retard timers
I set 320.
Retards are reduced faster than in stock.
Retards are reduced faster than in stock.
400+ Mazda6 MPS
ATP GTX3071, AEM SRI, CPe TIP, Treadstone TR11 FMIC, 3" Rud Exhaust, KMD HPFP, Methanol Injection Kit, CP Forged Pistons, K1 Forged Rods
Tuned with
ATP GTX3071, AEM SRI, CPe TIP, Treadstone TR11 FMIC, 3" Rud Exhaust, KMD HPFP, Methanol Injection Kit, CP Forged Pistons, K1 Forged Rods
Tuned with

Re: Knock retard timers
Ok, so lowering that value is what we need.
Thanks Yura!
Thanks Yura!
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071 gen2, ~550BHP @35PSI
2008 Icy Blue Mazda CX7
Built engine and stock exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 360-ish BHP
Built engine + WMI + GTX3071 gen2, ~550BHP @35PSI
2008 Icy Blue Mazda CX7
Built engine and stock exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 360-ish BHP