ECUFlash Price Ballpark
Apr 8, 2009, 09:55 AM
#31
His tag on here is DB performance, maybe he will chime in.
Apr 8, 2009, 10:27 AM
#33
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I would not come to that conclusion right away. I have witnessed plenty of evo X's that knocked and you can see it in the graph right away. If a car knocks badly, it will show a nasty dip in the graph 99 out of a 100 times.
Apr 8, 2009, 11:01 AM
#34
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It's easy to make all kinds of power on the X by adding timing, but with the knock I have heard on these cars, it is a bit scary.
Apr 8, 2009, 11:03 AM
#35
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I am no expert, but I know the knock detection he uses is the really expensive kind, where it's like you are using headphones. Maybe that's what you are talking about. He said that compared to the 8 and 9's, which apparently had great knock detection, the X uses something else that in his words would just not pull timing when knock occured. He said he only saw it pulling a degree of timing when he heard knock, especially up top where he was hearing a good amount of knock. He was making a good amount more power on my car, but backed it down because of the knock he heard. He is not a big fan of the X's knock detection.
His tag on here is DB performance, maybe he will chime in.
His tag on here is DB performance, maybe he will chime in.
However, like DG said above, you will for sure see it on the power curve if you know what to look for.
Last edited by GST Motorsports; Apr 8, 2009 at 11:06 AM.
Apr 8, 2009, 11:07 AM
#36
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Yes, I use det cans. I had our Mustang tuner jump in and listen with a different det can setup and he heard the same knock at the same time as me. The X motor seems to knock pretty loud like a Subaru also, so it isn't hard to pick out or quiet like with a 4G63. Sometimes the factory ECU would hear it an pulling timing and sometimes it didn't do anything. But even when it would do something about it, it would just pull 1 degree and then put it right back in. I don't know if the strategy of the knock system on these cars it to rely more on a learned octane value and learn over time to run less timing, instead of just yanking a bunch out right away like it does on DSMs and Evo8/9s. The knock noise I am hearing is easy to make go away with less timing advance and I tune all kinds of cars that have no knock detection systems, so I am used to listening for knock with det cans.
It's easy to make all kinds of power on the X by adding timing, but with the knock I have heard on these cars, it is a bit scary.
It's easy to make all kinds of power on the X by adding timing, but with the knock I have heard on these cars, it is a bit scary.
Apr 8, 2009, 11:29 AM
#38
So as I said, tuners who are leaning out the car to 12:1 AFR, adding more boost AND more timing are playing with fire.
What I have always done when I tune is add boost, lean aout the AFR to 11.5-11:1 and then RETARD the timing from the stock levels. I followed the same process when tuning the 10 and kept an eye on the timing curve. In the areas where I saw a timing dip, I retarde the timing even more.
What I have always done when I tune is add boost, lean aout the AFR to 11.5-11:1 and then RETARD the timing from the stock levels. I followed the same process when tuning the 10 and kept an eye on the timing curve. In the areas where I saw a timing dip, I retarde the timing even more.
Apr 8, 2009, 11:42 AM
#39
So as I said, tuners who are leaning out the car to 12:1 AFR, adding more boost AND more timing are playing with fire.
What I have always done when I tune is add boost, lean aout the AFR to 11.5-11:1 and then RETARD the timing from the stock levels. I followed the same process when tuning the 10 and kept an eye on the timing curve. In the areas where I saw a timing dip, I retarde the timing even more.
What I have always done when I tune is add boost, lean aout the AFR to 11.5-11:1 and then RETARD the timing from the stock levels. I followed the same process when tuning the 10 and kept an eye on the timing curve. In the areas where I saw a timing dip, I retarde the timing even more.
Apr 8, 2009, 11:50 AM
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Apr 8, 2009, 08:43 PM
#43
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So as I said, tuners who are leaning out the car to 12:1 AFR, adding more boost AND more timing are playing with fire.
What I have always done when I tune is add boost, lean aout the AFR to 11.5-11:1 and then RETARD the timing from the stock levels. I followed the same process when tuning the 10 and kept an eye on the timing curve. In the areas where I saw a timing dip, I retarde the timing even more.
What I have always done when I tune is add boost, lean aout the AFR to 11.5-11:1 and then RETARD the timing from the stock levels. I followed the same process when tuning the 10 and kept an eye on the timing curve. In the areas where I saw a timing dip, I retarde the timing even more.
My average bolt on evo x will love to be in the 12.0 air fuel. 11.5 makes less power with my tuning strategies and tends to make my power under the curve suffer.I feel 110% safe with our fueling/timing/Mivec tuning. Hell I am not cocky but do own def. one of the lowest reading dynos in the usa and am averaging 75-100whp per minimal bolt on tune.
Last edited by DG Motors; Apr 8, 2009 at 09:49 PM.
