Power Commander Ignition Module Notes

In my experience, the $350 Power Commander Ignition module "says" +/- "10", but it really only seems to change the ignition timing about +/-2 degrees (as of at least 07/2008).  This was backed up by a DJ importer's experience.
According to a customer, dj told him  that ignition timing, doesn't affect power very much.
That's just wrong.
Factory Pro has over 30 years of research and development in high accuracy tuning in general and 20 years in producing Ignition Advancers (which REALLY DO change the ignition timing!)  and we've been producing dynamometers that read to .1 and .2 HP increments.

Testing on real load dyno, under realistic load, multiple DJ Ignition Modules on 600's and 1000's show that DJ +10  to DJ -10 "DJ degrees" equals less than a 1% to 2% HP spread.
How could you change ignition timing a supposed "TWENTY DEGREES" and only affect the HP by 1% to 2%????

You can't change the ignition timing 20 degrees and only affect the power by a couple percent -  That's an obvious fact.
If you had "Best Power" ignition timing set and you retard or advance the timing a REAL 10 degrees, the bike world hardly run, losing around 10% - 20% True HP  if you retarded it.
if you advanced it a real 10 degrees, you'd lose a bunch of power, too and also, likely, give it fits of detonation.

Now - I'm still perplexed about the guy who posted that he gained 7 HP on his dynojet dyno with a "+5" setting on his DJ Ign Module!  - (I'll reserve comments, for once).....5 DJ degrees /  about 1 REAL degree = 5 hp? and also perplexed about the ignition map that I got from a DJ sponsored Yamaha Race team that showed +1 and +2 and -1's in their "official" R6 map! Lessee? They changed the ignition timing a miniscule  real .2 degree and they could see that hp change?
The 06 R6 that we were working on? It actually wanted more than 10 "dynojet degrees" at almost every part throttle position for Best Power settings and all of the full throttle settings ended up at +5 to +10 "dynojet degrees". Compare that to the zero settings at full throttle that were supplied and the +1, +2 an +3 "dj degree" settings that were supplied.

A significant ignition timing change, that power can be measured would MAYBE be a real 1 degree - but you can only measure the HP change if the fuel mixture is absolutely PERFECT for Best power (NOT to misleading dealership level "AFR tuning") already -

 Normally, a REAL 2 degrees ignition timing change will change the power (on a Perfectly fueled engine) by about 1%.

(example 100 True HP > 101 True HP if a "good direction change" OR 99 True HP if it was "the wrong 2 deg direction change").

So - the only reason to run a DJ Ignition Module is to use a DJ Quickshifter (until the TEKA 4 QS upgrade is released)
 the DJ Ignition function is, otherwise, essentially $350 useless cost.

When tuning on and EC997 dyno, (which has the capability of measuring .1 to .2 HP changes), essentially, there are only a couple of DJ Ign Module settings:
Zero
+ or - 5 Dynojet degrees or
+ or 1 10 Dynojet degrees
Don't expect huge HP changes - as, as described above, you'll see 1 or 2 hp at best (at least on a real dyno)

So - what does that tell you?
That you need to do testing on a high quality dyne system, like the Factory Pro EC997 .
Then, you too, can learn all these "unpopular" facts!
Like inertia HP isn't real HP in the real world, dj hp numbers are bogus, tuning to an AFR for best performance is a myth....
Join Jordan Racing and Vesrah Racing and Suzuki NZ -

(I'm sure that the guy who got "7 DJHP" with a real 1 degree (aka: 5 Dynojet degrees)  isn't my buddy right about now, though....)
 

Best regards - Marc
 

 
dealers only

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