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Re: Dyno Simulators and ignition timing [Re: mopar dave] #2483422 04/16/18 01:33 AM 04/16/18 01:33 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Originally Posted By mopar dave Thats what i'm talkin about. Mapping timing for every 500 rpm increase til max power. Isn't that what the OEMs are now doing and for each individual cylinder as well. Not sure anyone has done this on a Big Block mopar though. I'm happy just locking out for now, but just wonder how much power is lost thru the rpm range with fixed timing. IF you gain it would be very little being you have a locked dist.. if you had a vac adv dist it would be adding timing on light throttle and it can get up into the 50* range

Re: Dyno Simulators and ignition timing [Re: MR_P_BODY] #2483496 04/16/18 10:02 AM 04/16/18 10:02 AM
Joined: Jan 2007 Posts: 8,040 Mt Morris Michigan mopar dave OP master
mopar dave OP master Joined: Jan 2007 Posts: 8,040 Mt Morris Michigan	Don't know what i'm gonna do yet. My MSD doesn't have a vac can, but i am looking a getting a different distributor. think i'll just leave it alone locked out for now. Thanks Mike http://www.youtube.com/watch?v=aIxaesJ190U http://youtu.be/lCZAaN7fFLg

Re: Dyno Simulators and ignition timing [Re: mopar dave] #2483502 04/16/18 10:33 AM 04/16/18 10:33 AM
Joined: Feb 2010 Posts: 1,645 Phila. Pa. Mattax top fuel
Mattax top fuel Joined: Feb 2010 Posts: 1,645 Phila. Pa.	The Chrysler tach drive will get you pretty close to that. Whether it shows as a flat line or a slight rise intiming will depend on two things. One, adjustment of the secondary spring perch. The other, speed of the ECU's electronics and other factors that may slow the firing time. That SB unit that I showed the plot for was tested on a SUN 404 with an amplifier box. That box is pretty slow. Still flatlined.

Re: Dyno Simulators and ignition timing [Re: Mattax] #2483550 04/16/18 12:45 PM 04/16/18 12:45 PM
Joined: Jan 2007 Posts: 8,040 Mt Morris Michigan mopar dave OP master
mopar dave OP master Joined: Jan 2007 Posts: 8,040 Mt Morris Michigan	Thanks for that linc. Looks like chrysler knows what needed and i just need to lock timing at 35* without losing any timing thru rpm increase. http://www.youtube.com/watch?v=aIxaesJ190U http://youtu.be/lCZAaN7fFLg

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