i got this using evoscan. i put it back to stock timing because a flash i had done i was getting a ton more knock counts. I think i am closer to where i want to be. should i keep retarding timing to get these lower?


from
3rd gear
21 psi boost
11.0 AFR ( i cant get the evscan to work. with my aem.) found its not supported
280 exhaust cam retarded 4*

. . . . . . . . . . .rpm . . . . . . . . . . . . . . . . . . tps .. . knoc.. timing
16 8/5/2006 2281.25 5.376 0.0585 81 0 16
17 8/5/2006 2468.75 5.632 0.7605 89. 0 15
18 8/5/2006 2375 5.888 0.8385 100 0 15
19 8/5/2006 2468.75 6.144 0.858 100 0 14
20 8/5/2006 2531.25 6.656 0.8775 100 0 14
21 8/5/2006 2531.25 6.912 0.8775 100 0 13
22 8/5/2006 2593.75 7.168 0.8775 100 0 11
23 8/5/2006 2656.25 7.424 0.8775 100 0 11
24 8/5/2006 2656.25 7.68 0.8775 100 0 10
25 8/5/2006 2750 8.192 0.8775 100 0 8
26 8/5/2006 2781.25 8.704 0.897 100 0 7
27 8/5/2006 2843.75 9.472 0.897 100 0 4
28 8/5/2006 2906.25 10.496 0.897 100 0 4
29 8/5/2006 2937.5 11.776 0.897 100 0 4
30 8/5/2006 3000 13.312 0.9165 100 0 4
31 8/5/2006 3093.75 14.592 0.9165 100 0 4
32 8/5/2006 3125 15.616 0.9165 100 0 4
33 8/5/2006 3218.75 16.896 0.9165 100 0 3
34 8/5/2006 3281.25 18.432 0.897 100 1 3
35 8/5/2006 3406.25 19.712 0.9165 100 1 3
36 8/5/2006 3531.25 20.992 0.9165 100 8 1
37 8/5/2006 3593.75 19.456 0.9165 100 8 1
38 8/5/2006 3687.5 16.384 0.9165 100 8 1
39 8/5/2006 3843.75 15.616 0.897 100 7 1
40 8/5/2006 3906.25 16.128 0.897 100 7 1
41 8/5/2006 4000 17.408 0.9165 100 7 1
42 8/5/2006 4125 17.664 0.9165 100 7 1
43 8/5/2006 4156.25 16.896 0.9165 100 7 1
44 8/5/2006 4312.5 16.384 0.9165 100 7 2
45 8/5/2006 4343.75 16.384 0.9165 100 7 2
46 8/5/2006 4468.75 16.896 0.9165 100 6 3
47 8/5/2006 4562.5 17.152 0.9165 100 6 3
48 8/5/2006 4625 16.896 0.9165 100 6 3
49 8/5/2006 4750 16.64 0.9165 100 6 4
50 8/5/2006 4843.75 16.64 0.9165 100 8 2
51 8/5/2006 4937.5 17.152 0.9165 100 8 3
52 8/5/2006 5000 17.408 0.9165 100 7 1
53 8/5/2006 5125 17.152 0.9165 100 7 2
54 8/5/2006 5187.5 16.896 0.9165 100 7 3
55 8/5/2006 5281.25 16.64 0.9165 100 7 4
56 8/5/2006 5375 16.384 0.9165 100 7 3
57 8/5/2006 5437.5 16.384 0.9165 100 7 4
58 8/5/2006 5531.25 16.64 0.9165 100 7 4
59 8/5/2006 5656.25 16.64 0.9165 100 6 5
60 8/5/2006 5687.5 16.384 0.9165 100 6 4
61 8/5/2006 5843.75 16.384 0.9165 100 9 5
62 8/5/2006 5875 16.128 0.9165 100 9 5
63 8/5/2006 5968.75 16.128 0.9165 100 9 5
64 8/5/2006 6062.5 15.872 0.9165 100 10 4
65 8/5/2006 6125 16.128 0.9165 100 10 4
66 8/5/2006 6250 15.616 0.9165 100 9 5
67 8/5/2006 6312.5 15.616 0.9165 100 15 3
68 8/5/2006 6343.75 15.872 0.9165 100 15 3
69 8/5/2006 6437.5 15.872 0.9165 100 15 3
70 8/5/2006 6562.5 15.616 0.9165 100 15 3
71 8/5/2006 6593.75 15.36 0.9165 100 15 4
72 8/5/2006 6656.25 15.36 0.9165 100 14 5
73 8/5/2006 6750 14.848 0.9165 100 14 5
74 8/5/2006 6781.25 15.104 0.9165 100 20 4
75 8/5/2006 6875 14.848 0.9165 100 20 4
76 8/5/2006 6937.5 14.592 0.9165 100 20 5
77 8/5/2006 6968.75 15.36 0.9165 100 20 5
78 8/5/2006 7062.5 15.36 0.9165 100 20 6
79 8/5/2006 7125 15.104 0.9165 100 19 6
80 8/5/2006 7218.75 15.36 0.9165 100 25 5
81 8/5/2006 7250 15.104 0.9165 100 25 6
82 8/5/2006 7312.5 15.104 0.9165 97.64705882 25 8
83 8/5/2006 7406.25 1.28 0.936 20.39215686 22

 

I thought you had a "toilet cam" photo with this topic's "title"

this stuff looks interesting. I have seen a few, and will this mean Dyno strapdowns will become less frequent? That is if you can "play" with this data and manipulate it somehow? I will watch this, and see what others say.

 

LOL I was going to make a similar joke..

I have a beltronix timing computer I use for my testing, and I back it up with two dyno calculations, one from Data Log Lab from the Evoscan data, and the other from ECU+ If the three numbers are fairly close to eachother, I average the value and thats what I talk about.

So yes, its not really necessary to dyno tune your car any longer if you have the right logging data, tools, and a safe place to run your car through the RPM range.. Placing real load on the car will always result in lower numbers (no glory sheets here) but It will produce repeatable gains and not a Dynojet glory run...

My stuff always reads high, but I don't really compare the numbers with other dyno numbers, just different runs on my own car with the same software.

Now looking at the log, as long as your knock counts are fairly low, you can now slowly add a little bit of timing until you get a small amount of knock, then back off. Or if your adventurous, leave the knock.. LOL Small counts (rare 1-5 counts) won't do much harm, as long as its not due to TOO MUCH Timing..

Your logs look different than the ones I get from Evoscan so I can't easily read it without the column headers.. You guys really should include the headers if your using specific columns..

 

Great info Malibu!!

 

I wonder where everyone has been for the past three years I have been road tuning all over the place while the so called "experts' claim that you can only properly tune on a dyno ?

Its funny that I feel you can only properly tune on a road or track.

One point of disagrement - a road tuned car may also make great dyno numbers - it really comes down to a lot of variables.

Properly tuned the whp should be close road tuned or dyno tuned and I have tested this many times - key word "properly tuned"

 

PS - speaking of the log above it needs more fine tuning to smooth things out too much knock retardation

I would try lowering the boost also

 

He seems to have changed his mind... https://www.evolutionm.net/forums/sh...03&postcount=1

 

Thats actually very true.. I don't frequently use the Dyno since a majority of my tuning is based around drivability and part throttle.. Then I do my full load pulls, generally once their dialed in I can see them being similar on the Dyno, Where the road tuning really makes a difference is the area under the curve, and the power at less than WOT where it makes the car feel alot better in daily driving.. My car is just too quick now to do WOT tuning on the road, I have to do it in 4th gear and its just too fast to do safely.. So it does look like the final tunes will be on the dyno for my car.

 

Actually I am too inept to do this type of "logging" anyway, and I would not feel comfortable doing my "own" tuning. I still would do the dynos. my 2c.

 

I like the dyno because you dont have to watch for cars and you can hear it better if something starts to go wrong as well as shut it down very fast. I like watching the screen and making sure there is no problems rather then have to watch the road and risk my life.

 

Ugh not another dyno vs. street flame fest...

 

I say tune it the way you want to. Its your car.

 

I would have a "false sense" of tuning abilities if I had one of those!! Look in the classifieds soon for people who blowed up their rides!! Not me.

 

I dont care what anyone says, best way to tune timing is on the dyno for wideopen throttle. Then you can clean up part throttle on the street tuning for drivability.

 

There are tuners here in Socal that do road tuning. You always make it sound like you started the whole Evo tuning scene. I know of one tuner in particular that has been tuning DSM's for over 10 years. He does it as a hobby and is probably the best tuner in Socal. He does lots of streets tunes.

One reason the dyno is prefered is because it is safer. Second not everyone has a WB installed in their car.

You didnt invent street truning Al. Its been around for a while now.