Its great to see the ignition woes are getting sorted. Lap top sounds like its a must have. The map sensor option will tell you alot more about the engine tune than just boost. Vacuum is a very good diagnostic tool. You could use it to tune your power valve opening point. Im very interested to see what you feel when the timing retards. Can you record data with the msd box? Great vid.
G G sounds very interesting the map sensor setup from what you wrote..... its my next dive in challenge.. im not sure on recording data, will look into that... im curious too mate to see if i can feel the difference in timing pull.. Thanks Goerge..
GRIFFS REARMOUNT TURBO, The Modfather with this programmable msd ignition and the features of your quickfuel carby your tuning options are endless. You can log afr , rpm and vac through your lm2. Add all that info to your ignition map, and you can tune and understand your engine. A very good set up.
Hi Griff, you may want to invest in a “knock sensor” as you won’t hear detonation, you might find you can be more aggressive with the ramping in of timing prior to boost @ 3000rpm & before pulling it all back out. I’m unsure if your MSD box has an input for a knock sensor, a couple hours on a dyno will soon sort it all out. Good luck.
Lacksballs im not sure about a knock senser input either, i think your right in suggesting more aggressive ramping on timing, its really fascinating this, my whole life was old school thought mechanical and now in the last few days it has all changed in the timing world..i still cant believe it hahaha... cheers mate..
87xfute shouldn't do rob, ive kept it well back, even if it does hypothetically boost it shouldn't hurt it.. i ran it there on 14 pound with no water/meth in one race, this is all R&D Rob...Just had a storm come thru and dropped 7 degrees in twenty minutes with some nice rain... cheers
Shouldn't you use the MAP sensor tables to pull the time back out as boost increases, not attempt to predict at what rpm the boost rises (and control it on the main timing table). That way as the boost builds differently in different gears, you will always have the right timing for the amount of boost (MAP value) regardless of what speed the engine is turning.
There are better ways of timing control, but for me mapping my timing curve has been very successful. I know when boost comes on so I have allowed a little safety margin in my curve. it has been very reliable and super easy to tweak.. The only advantage I can see in the other option is when up in boost and revs, if say you get off throttle then get back on it you would see a timing increase until boost starts ramping in again, personally from being in that situation isn't an issue for me it's still extremely responsive over three thousand rpms with set timing.
@@griffsrearmountturbothemod1623 it's absolutely your system, you've obvioulsy found what works, and sometimes simpler is better, and less stressful!. Thanks for posting your video.
