MSPNP ignition setup
Ok, I have my mspnp in and my ve-tables fairly nicely set. Next I want to start in on the spark tables and see what I can do there. I really have no idea what I can do and I'm looking for advice or resources to get this table in order.
can anyone help me out? |
Some more info on your setup is needed, size of the turbo and WI or IC are needed before we can steer you towards timming maps FWIW the PNP has some rather robust maps in it anyway.
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Dyno time on a load bearing dyno. That is what you need to tune the spark table safely.
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I am not turbo. I can post my map if you'd like. I guess this isn't the best forum for my questions but I have nowhere else to go really...
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i bought a wideband o2 and a slave to drive my car so that I could minimize my dyno time. I'm sure you can tune safely without a dyno... and that is the help I'm looking for.
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Originally Posted by spooln
(Post 125520)
i bought a wideband o2 and a slave to drive my car so that I could minimize my dyno time. I'm sure you can tune safely without a dyno... and that is the help I'm looking for.
Although in terms of the fuel wastage and time wastage a few hours on a dyno would be far more effective and cheaper, not to mention safer.... |
The timing map provided by DIY with the MSPNP should be pretty optimal for you already, i wouldn't mess with the timing map much unless you of course were going to get on a dyno. The best way to tune timing is increasing timing cell by cell for the most power at that cell, not the most timing till you hear knock(knock sensor). So unless your butt dyno is as perfectly calibrated as a steady state dyno there is no way to tune timing without time spent on one.
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I can feel it why cant he. dude you just gotta dirve and tune it is easy. have some one drive and you tune. or you drive not eht feelings and rpms then tune ad abit of timming no knock keeps on pulling good maybe try some more uh ohh knock better back off a hair,
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thanks for the replies guys... I guess I was thinking that tuning spark would(might) provide a more noticeable difference. I've been playing around with a couple spark tables and you're right... it's very hard to notice any difference. My main issue is 1st gear... I really feel that I should be getting more pull from it and no matter what I do... it just doesn't happen. I'm going to go drive like a mad man right now and log in hopes that someone can provide some insight into what I need to do to extract maximum power.
I will go to the dyno at some point but I would a. like to know what to do after each pull and b. get the car dialed in pretty damn good and use the dyno for polish. |
http://forum.miata.net/vb/showthread...9&page=2&pp=40 try this guys values.
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Originally Posted by spooln
(Post 125668)
thanks for the replies guys... I guess I was thinking that tuning spark would(might) provide a more noticeable difference. I've been playing around with a couple spark tables and you're right... it's very hard to notice any difference. My main issue is 1st gear... I really feel that I should be getting more pull from it and no matter what I do... it just doesn't happen. I'm going to go drive like a mad man right now and log in hopes that someone can provide some insight into what I need to do to extract maximum power.
I will go to the dyno at some point but I would a. like to know what to do after each pull and b. get the car dialed in pretty damn good and use the dyno for polish. |
The spark map we include with the MSPNP is a bit conservative, but unfortunately there's no spark equivalent of a wideband sensor short of some rather complicated cylinder pressure logging equipment. I'd recommend dyno tuning to get the spark table optimized. That's how we developed our map - then made a few adjustments to make it less likely to blow an engine that doesn't quite match the one in our test car.
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Originally Posted by shuiend
(Post 125827)
The thing is that the only way to know a diffrence is on a dyno. The highest timing advance dosent always produce the most power so you need time to figure out what produces the best power without causing knock.
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Originally Posted by shuiend
(Post 125827)
You should actually do the timing first before fuel to get the best results but that takes lots of dyno time. So most people street tune fuel then do spark on a dyno and fine tune fuel after that.
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nah use your fuel map as is then tune the timming, and retune the fuel. you should'nt need to modify it a whole bunch maybe lean it out abit here and there for more power. realy if you just tweak the AF's in autotune after the spark is somewhat dialed in and run it the map will change itself rather quickly. :D autotune is awsome it can totally rework a map in about 5 minutes
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Originally Posted by magnamx-5
(Post 125939)
nah use your fuel map as is then tune the timming, and retune the fuel. you should'nt need to modify it a whole bunch maybe lean it out abit here and there for more power. realy if you just tweak the AF's in autotune after the spark is somewhat dialed in and run it the map will change itself rather quickly. :D autotune is awsome it can totally rework a map in about 5 minutes
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That's why there are numerous turbo ignition maps available for you to use safely allowing you do advance at free will to peak power output.
Al Hounos's ignition map is very conservative (should be the FM map) and as long as you have fuel tuned decent or a little on the righ side you can go ahead and tune ignition then finetune fuel back to where you want it. |
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