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How does this E85 Timing Map look?

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Old Apr 24, 2009, 03:15 PM
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Originally Posted by lemmonhead
but your peak torque numbers are same/lower than my pump 92 gas.
Are you putting the 30psi peak into the picture?

Originally Posted by lemmonhead
I say change your 3's to 5 and you still should be very safe.
question is what a/f are you running at?
Have you tuned E85 at 30psi to make that kind of judgment call?



-Bryan
Old Apr 24, 2009, 04:04 PM
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Originally Posted by dan l
Actually looks pretty good........
thats what i was thinking.... all the negative numbers are in the way low rpm columns so you never get there anyway. look safe, maybe not best for power.
Old Apr 24, 2009, 05:44 PM
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I usually seem to see negative numbers or a zero in your ones. Other than it, it looks really good. E85 maps on a stock turbo (and even stock appearing for the most part) look very similar generally unless the car has a noisy motor and you havent turned the knock control down to make it less sensitive.

aaron
Old Apr 25, 2009, 03:23 AM
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Originally Posted by house_of_senate
This is from a local tuner not on the boards...Car has a BBK Full turbo at 30 psi spike, kelford IX 272's, all other bolts ons. I know the injector scaling is way off but how does this timing map look? Ill find out later tonight what load Im spiking to and holding. Also, it seems that most people run a 12.0 AFR on E85. Is that what most are still doing?

Thanks




A few things I might possibly change with that map if I was to run it in my car is the timing in the 140 to 220 loadsYou can probably eek a little bit more out of it than that, as my map has about 2-4 degrees more, and doesn't knock. I do have my knock sensitivity changed a tad since I am on a built no balance shafts motor. Changing/tuning in that area will give the car a better feel when you are half on the gas, and "quickly" putzing around town. I would get rid of the non-linearity in the 100 load, from 3000 to 6000 rpm, but that just me being a little picky. One more being picky is you could combine the 10,20 & 30 load columns as you don't need that much resolution at idle & just above idle conditions, especially because the three columns are the same. Me personally would put the resolution somewhere in between the 100-240 loads because thats probably where the car spends most of its time during spirited daily driving. Increasing the resolution there can enable you to really make a quick & responsive part throttle spirited driving car.

Other than that, your map looks pretty similar to mine, with the exception I am spiking 2psi higher than you. My map mas looked similar to yours, for almost two years now on E85, and I still love it. Just small tweaks here and there to it is all I do anymore.
Old Apr 27, 2009, 12:49 PM
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Thanks for all the replies guys, I tweaked the load 100 row and I think Ill leave it at that for now. I cant really tune it to the edge of knock then back it off because the knock sum is all over the place all the time.

Thanks
Old May 13, 2009, 07:12 AM
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Here is a third gear log using this timing map on my e85 tune. All input is appreciated.

Thanks
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Old May 13, 2009, 02:02 PM
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Originally Posted by house_of_senate
Here is a third gear log using this timing map on my e85 tune. All input is appreciated.

Thanks
Could clean up the AFR and probably clean up the timing ramp from 4k to 6500.

You should really be logging 2byte or 1byte load and not CalcLoad.
Old May 13, 2009, 07:55 PM
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Originally Posted by GST Motorsports
Could clean up the AFR and probably clean up the timing ramp from 4k to 6500.

You should really be logging 2byte or 1byte load and not CalcLoad.
Ok I will upload the tephramod v5.10 tomorrow, this is just so I have a more accurate load to follow for adjusting each cell corrrect?
Old Sep 29, 2009, 12:51 AM
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It seems to me that alot of people these days seem to be running more timing at peak torque that everyone first thought possible, opinions?
Old Sep 29, 2009, 06:27 AM
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I'm only running 2-4* of peak timing around 28-29 psi. My car feels fine with that setting. I don't feel a need to run more- what's the point?
Old Sep 29, 2009, 09:29 AM
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I usually tune a little more aggressive in the mid range on E85 as well. There is some left in it there. Just watch your torque numbers and see if it likes the extra timing.
Old Dec 3, 2009, 08:40 AM
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The map looks good. Just minor fixes here and there.
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