Author Topic: DynoJet: how do you go about changing the crank tooth settings?  (Read 378 times)

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Offline Harley Pilot

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how do you go about changing the crank tooth settings?
« on: December 22, 2017, 02:41:45 PM »
I have seen a thread regarding crank tooth settings on the PV maps and I am curious as to how you go about that.

Offline Coyote

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Re: how do you go about changing the crank tooth settings?
« Reply #1 on: December 22, 2017, 02:48:00 PM »
You have to be given access to those tables by DynoJet. If you have a map you would like them changed, PM it to me and I can change them.
I feel the need... for twisties with speed.

Offline Harley Pilot

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Re: how do you go about changing the crank tooth settings?
« Reply #2 on: December 22, 2017, 07:52:27 PM »
 Cool, still waiting on my tuner but thank you for offering. So once I pull the current map with the tuner for auto tuning the settings can then be changed correct?

Offline Coyote

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Re: how do you go about changing the crank tooth settings?
« Reply #3 on: December 22, 2017, 08:26:35 PM »
Sure. You do know changing it will shift all your tuning, right?
I feel the need... for twisties with speed.

Offline Mirrmu

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Re: how do you go about changing the crank tooth settings?
« Reply #4 on: December 22, 2017, 10:22:06 PM »
is that crank tooth setting really do much Coyote?

Offline Latrobedyna

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Re: how do you go about changing the crank tooth settings?
« Reply #5 on: December 22, 2017, 10:52:22 PM »
is that crank tooth setting really do much Coyote?

I like to know that too, I took a map for my scooter with 57-H cam and after i advanced the camshaft 4degree's i did a couple target tune run's . Bike seems to run good so with out the dyno tune stuff is there much reason to worry about this so called crank tooth setting ?
2006 FXDB , 95" 57H +4% cam, 10:25 pistons: Ported head's. Lots a fun

Online Frédéric CM

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Re: how do you go about changing the crank tooth settings?
« Reply #6 on: December 23, 2017, 01:02:00 AM »
It does affect the MAP reading throu the rpm range, and affect low rpm "smoothness".
I have a tune for my 57H with 8-30 and another with 7-29, the 7-29 tune is better to ride (both have same timing and have been autotuned avec IVO IVC Change)

Offline Mirrmu

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Re: how do you go about changing the crank tooth settings?
« Reply #7 on: December 23, 2017, 02:34:13 AM »
how you know map been changed?

Offline Harley Pilot

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Re: how do you go about changing the crank tooth settings?
« Reply #8 on: December 23, 2017, 06:24:59 AM »
Sure. You do know changing it will shift all your tuning, right?

I do, i just want to make sure I have the right/closest setting for my cams before going forward with the "auto tune" process. my current map is an abomination of the map from the previous cams.

Thanks,
Dan.

Offline jelildude

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Re: how do you go about changing the crank tooth settings?
« Reply #9 on: December 29, 2017, 04:15:30 PM »
is that crank tooth setting really do much Coyote?

I'd like an opinion on this as well...I have an autotuned map for my Andrews 26 cam that runs good, but I'm curious if it would run better with these hidden tables changed.

Offline Mirrmu

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Re: how do you go about changing the crank tooth settings?
« Reply #10 on: January 03, 2018, 03:17:00 PM »
smoke and mirrors stuff jelildude

probably tuner vs tuner stuff

Offline Gordon61

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Re: how do you go about changing the crank tooth settings?
« Reply #11 on: January 04, 2018, 05:56:36 AM »
As I understand them, IVO and IVC are timing events that tell the ECU when to take MAP readings ...if you change the timing of the cams it would seem to make sense to change the corresponding timing events programmed within the ECU.  There have been more than a few discussion on IVO/IVC across different forums.

TTS helps you to tune the cam settings.  Power Vision has nothing, other than tech support or your professional tuner person knowing what it should be and setting them for you.  The FP3 does let you change the cam settings, but has nothing to help you tune what they should be.

I found a big difference when Dynojet changed the IVO for me from the default 8 to tooth 7.  It seemed to tune in quicker/easier but more importantly the result was just so much smoother at low load. I couldn't make out any difference between IVC settings

Online Frédéric CM

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Re: how do you go about changing the crank tooth settings?
« Reply #12 on: January 04, 2018, 09:39:34 AM »
I've found that IVC affect the MAP reading throu all the RPM range, IVO affect mainly the low RPM (<=2000)

Offline Gordon61

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Re: how do you go about changing the crank tooth settings?
« Reply #13 on: January 05, 2018, 01:47:30 PM »
absolutely! as Coyote mentioned - change either of the two cam settings and you have to re-tune your VE tables

What I meant tho was, seat of the pants/real life riding, I could never tell any difference between a 7/29 tuned map and a 7/30 tuned map (...which is why we got told it doesn't make much of a difference with our cam being right between the two teeth)


[PS it didn't make any difference to that dip you were asking about either ...I know cos I tried]