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enigma
12-10-2006, 11:52 AM
but not much

Wodjno
12-10-2006, 12:08 PM
but not much

Might not be much in numbers Dave, but in reality and performance it will make a fair bit of difference :beerbang:

Your AFR's i would say are bordering on 1 to rich all the way through the Revs. And your Boost curve is a little to be desired at the beginning, although it seems to settle out quite nicely from around 5550rpm.. ;)

So what has made these alter from your initial set-up. Have you added or taken anything away :huh:

enigma
12-10-2006, 12:15 PM
Might not be much in numbers Dave, but in reality and performance it will make a fair bit of difference :beerbang:

Maybe 10BHP, but not a great deal really for the added protection........



Your AFR's i would say are bordering on 1 to rich all the way through the Revs.

>12:1 would be way too lean. 11.8 is as lean as I would like to go


And your Boost curve is a little to be desired at the beginning, although it seems to settle out quite nicely from around 5550rpm.. ;)

Read my thread about boost spiking ;)


So what has made these alter from your initial set-up. Have you added or taken anything away :huh:

Only the MAF. I suspect that V-Power has slightly different characteristics to Optimax as well.

Wodjno
12-10-2006, 12:28 PM
Maybe 10BHP, but not a great deal really for the added protection........

10bhp is approx 3% increase on power :thumbsup:





>12:1 would be way too lean. 11.8 is as lean as I would like to go

From what i can see from the graph your averaging approx 11afr, some a tad higher and some a tad lower, so to raise it by just under 1 would take you to your desired AFR and safe at that /yes




Read my thread about boost spiking ;)

Not got time, i have some rewiring to do to get my car back on the road:anxious: But if you care for quick re-cap /Hmmm




Only the MAF. I suspect that V-Power has slightly different characteristics to Optimax as well.

I am sticking with Tesco Super.. Especially as it's 5p a litre cheaper.. And when i used V Power, i saw no discernable difference to my AFR's or Power :beerchug:

enigma
12-10-2006, 12:34 PM
From what i can see from the graph your averaging approx 11afr, some a tad higher and some a tad lower, so to raise it by just under 1 would take you to your desired AFR and safe at that /yes

Just for you a more detailed graph showing AFRs (and a trendline) I would be happy with a 0.5 shift in AFRs, although as I said I dont think the difference would be dramatic. Will get far more from changing the plugs and leads this weekend. :idea2:

Wodjno
12-10-2006, 12:37 PM
Just for you a more detailed graph showing AFRs (and a trendline) I would be happy with a 0.5 shift in AFRs, although as I said I dont think the difference would be dramatic. Will get far more from changing the plugs and leads this weekend. :idea2:

Well hope you get the result you want from whichever way you achieve it :thumbsup:

And i've just noticed how Very Turn Off and Onable you are :jester:

enigma
12-10-2006, 02:52 PM
Just taken 1-2% of fuel out between 4000 and 7000rpm, will log again on my way home. :thumbsup:

enigma
12-10-2006, 04:40 PM
Done, cost £0 time taken 30 seconds :thumbsup:

Wodjno
12-10-2006, 05:53 PM
Anyway of showing your Boost values Dave :huh2:

enigma
12-10-2006, 05:59 PM
Anyway of showing your Boost values Dave :huh2:

? They are on the graph!

~1psi either side of 13psi.

Set at ~0.9 Bar

Wodjno
12-10-2006, 06:21 PM
? They are on the graph!

~1psi either side of 13psi.

Set at ~0.9 Bar

AHA ! So the Values on the right are for PSi and AFR :beerbang:

enigma
12-10-2006, 06:46 PM
AHA ! So the Values on the right are for PSi and AFR :beerbang:

/yes

Wodjno
12-10-2006, 07:30 PM
Sorry ! No pretty Graphs from me :thumbsdow


Just Raw Data :thumbsup:

3rd Gear Run
AFR RPM PSi

14.48 2370 0.0
14.45 2400 0.3
14.39 2430 0.6
14.21 2460 0.9
14.12 2500 1.9
14.27 2560 2.5
13.70 2610 3.6
13.34 2700 4.4
13.25 2750 5.3
13.31 2820 6.5
13.01 2880 7.5
13.01 2970 8.6
12.95 3040 9.7
12.89 3110 10.8
12.80 3170 12.0
12.26 3320 14.2
12.59 3230 13.1
12.20 3390 15.1
12.02 3440 15.8
12.17 3490 16.1
11.93 3540 16.0
12.08 3560 16.2
12.05 3600 16.6
12.02 3620 16.5
12.23 3670 16.2
12.20 3700 16.4
12.05 3740 16.5
12.14 3780 16.5
12.08 3810 16.3
12.20 3840 16.2
12.11 3880 16.4
12.20 3900 16.4
12.14 3940 16.6
12.23 3990 16.5
12.11 4040 16.4
12.20 4080 16.4
12.26 4120 16.6
12.26 4200 16.4
12.10 4210 16.3
12.05 4260 16.4
11.96 4290 16.6
11.93 4340 16.5
11.87 4390 16.4
11.90 4420 16.1
11.74 4480 16.1
11.80 4520 16.1
11.71 4560 16.1
11.77 4590 15.9
11.80 4650 15.8
11.71 4690 15.8
11.68 4740 15.7
11.70 4760 15.7
11.65 4810 15.6
11.65 4860 15.5
11.53 4900 15.3
11.59 4920 15.2
11.47 4950 15.1
11.47 5000 15.1
11.50 5040 15.1
11.56 5100 15.0
11.50 5130 14.9
11.44 5160 14.8
11.50 5170 14.8
11.38 5240 14.6
11.41 5260 14.5
11.38 5290 14.5
11.26 5320 14.2
11.59 5360 14.3
11.41 5390 14.0
11.53 5430 13.9
11.29 5460 13.8
11.41 5500 13.8
11.47 5530 13.5
11.53 5550 13.5
11.65 5610 13.4
11.38 5660 13.3
11.56 5670 13.3
11.62 5720 13.2
11.56 5730 13.1
11.41 5750 13.0
11.53 5810 12.9
11.53 5840 12.9
11.56 5870 12.9
11.62 5910 12.9
11.71 5920 12.9
11.62 5950 12.9
11.74 5990 12.9
11.65 6010 13.0
11.68 6040 13.1
11.59 6070 13.1
11.74 6110 13.3
11.87 6150 13.4
11.77 6160 13.4
11.74 6200 13.4
11.59 6210 13.5
11.83 6250 13.5
11.71 6280 13.6
11.56 6310 13.5
11.68 6340 13.5
11.65 6360 13.5
11.68 6400 13.4
11.65 6440 13.4
11.71 6440 13.4
11.77 6480 13.4
11.65 6480 13.3
11.38 6530 13.2
11.68 6570 13.2
11.29 6560 13.1
11.56 6610 13.1
11.59 6620 13.0
11.62 6660 12.9
11.41 6680 12.9
11.53 6730 12.9
11.65 6740 12.9
11.62 6760 12.9
11.56 6770 12.8
11.56 6800 12.9
11.71 6840 12.9
11.77 6850 12.8
11.26 6810 8.6
11.59 6570 -1.9
14.88 6330 -8.0
13.19 6140 -10.3
13.10 5940 -11.3

enigma
12-10-2006, 07:41 PM
Here you go :thumbsup:

enigma
12-10-2006, 08:01 PM
Interesting to see that your leanest point is at your highest boost :anxious:

Wodjno
12-10-2006, 08:12 PM
Thanks Dave :thumbsup:

Must work out how to do that :huh2:

Leanest point is 12.26 but i haven't got a prob with 12 to 12.2 at less than 4500rpm.. I have tuned it that way /yes I had been running 12.5's throughout, but have now aired more on the side of caution. :2thumbsup

Thanks again for the graphs Dave :beerchug:

Funkstar
12-10-2006, 10:40 PM
I haven't the foggiest idea what you two are on about. I've tried to babelfish it, even translated into binary, still not a clue.

Does look good though. :jester:

Kenneth
12-10-2006, 11:10 PM
does eithier of you run RPM based boost management?

I have been thinking about the boost curves and also about possible choking of the engine with such small turbos excessive back pressure on the engine.

Assuming that the actuators actually stay closed at high RPM, what would happen if you decrease duty cycle (er, if this 'reduces' boost) a little where boost drops?

If you can alter the duty cycle to match the ACTUAL boost curve rather than leaving it at max and just running the turbos out, maybe you will gain some flow advantage through the wastegate, and possibly keep your turbos at a better efficiency and flow more there also.


Just a thought really, don't know if it would have any benefit in real life though...

Wodjno
12-10-2006, 11:24 PM
does eithier of you run RPM based boost management?



Yes Kenneth .. I have an RPM Offset ability on my Boost controller. I have had a little play with it, but now i've got my AFR's where i want them i'll have another play with the RPM Offset. /Banana But then i'll Prolly have to have another play with the AFR's after that again /lol
I do think the Turbo's ar pretty much at there Max though, and don't want to overstress them by pushing them much further to hold a higher boost for longer through the Rev range.
Think i need to monitor the air temp coming off the Turbo's before entering the FMIC to see how much difference there is with the increased boost.. /dunce

All in good time though, all in good time :D

Kenneth
13-10-2006, 12:44 AM
Yes Kenneth .. I have an RPM Offset ability on my Boost controller. I have had a little play with it, but now i've got my AFR's where i want them i'll have another play with the RPM Offset. /Banana But then i'll Prolly have to have another play with the AFR's after that again /lol
I do think the Turbo's ar pretty much at there Max though, and don't want to overstress them by pushing them much further to hold a higher boost for longer through the Rev range.
Think i need to monitor the air temp coming off the Turbo's before entering the FMIC to see how much difference there is with the increased boost.. /dunce

All in good time though, all in good time :D

The whole idea in what I proposed was to reduce the load on the turbo... to let it run efficiently rather than run it into the ground (which I believe is usually the case)
If the turbo can run more efficiently as well as allowing more exaust flow, then the only logical result is increased power... as I said, its just a theory though :)

enigma
13-10-2006, 07:39 AM
My boost controller uses RPM based duty cycles, at each 500rpm I have a different duty set.

Some of the boost control problems I experience are due to the wastegate spring being too soft, that is the wastegate is actually opening at higher rpms and the controller is continually fighting to shut it again. The oscillations are due to actual physical moving parts (ie the wastegate) opening and closing, ideally the controller would get assistance from a stronger spring to counter these effects. What this means is that the turbos are running really inefficiently as some of the exhaust gas is just bypassing the turbine...............I have toyed with the idea of getting some 12psi actuators just to see what happens. At the moment I am running about 65-70% duty cycle just to hold 13psi. Cant decide whether its worth it though as I am looking at changing the turbos (one weekend).

enigma
13-10-2006, 10:54 AM
I haven't the foggiest idea what you two are on about. I've tried to babelfish it, even translated into binary, still not a clue.

Does look good though. :jester:

01001001 01110011 00100000 01110100 01101000 01101001 01110011 00100000 01100001 01101110 01111001 00100000 01100010 01100101 01110100 01110100 01100101 01110010 00100000 01100110 01101111 01110010 00100000 01111001 01101111 01110101 00111111 00100000 01000001 00100000 01101100 01100001 01101110 01100111 01110101 01100001 01100111 01100101 00100000 01110100 01101000 01100001 01110100 00100000 01110000 01100101 01110010 01101000 01100001 01110000 01110011 00100000 01111001 01101111 01110101 00100000 01100001 01110010 01100101 00100000 01101101 01101111 01110010 01100101 00100000 01100110 01100001 01101101 01101001 01101100 01101001 01100001 01110010 00100000 01110111 01101001 01110100 01101000 00100001

Funkstar
13-10-2006, 06:31 PM
01001001 01110011 00100000 01110100 01101000 01101001 01110011 00100000 01100001 01101110 01111001 00100000 01100010 01100101 01110100 01110100 01100101 01110010 00100000 01100110 01101111 01110010 00100000 01111001 01101111 01110101 00111111 00100000 01000001 00100000 01101100 01100001 01101110 01100111 01110101 01100001 01100111 01100101 00100000 01110100 01101000 01100001 01110100 00100000 01110000 01100101 01110010 01101000 01100001 01110000 01110011 00100000 01111001 01101111 01110101 00100000 01100001 01110010 01100101 00100000 01101101 01101111 01110010 01100101 00100000 01100110 01100001 01101101 01101001 01101100 01101001 01100001 01110010 00100000 01110111 01101001 01110100 01101000 00100001

01010100 01101000 01100001 01110100 00100111 01110011 00100000 01101101 01101111 01110010 01100101 00100000 01101100 01101001 01101011 01100101 00100000 01101001 01110100 00100000 01000100 01100001 01110110 01100101 00101110 00100000 01010100 01101000 01100001 01101110 01101011 01110011 00100000 01100110 01101111 01110010 00100000 01110100 01101000 01100001 01110100 00101110 00100000

Wodjno
13-10-2006, 07:24 PM
01010100 01101000 01100001 01110100 00100111 01110011 00100000 01101101 01101111 01110010 01100101 00100000 01101100 01101001 01101011 01100101 00100000 01101001 01110100 00100000 01000100 01100001 01110110 01100101 00101110 00100000 01010100 01101000 01100001 01101110 01101011 01110011 00100000 01100110 01101111 01110010 00100000 01110100 01101000 01100001 01110100 00101110 00100000

01001000011001010111100100100000001000010010000001 00010101110110011001010110111000100000011010010010 00000110001101100001011011100010000001110101011011 10011001000110010101110010011100110111010001100001 01101110011001000010000001110100011010000110100101 11001100100000001111110010000001001001011101000010 00000110110101110101011100110111010000100000011000 10011001010010000001100001001000000100110101101111 01110010011011110110111001101001011000110010000001 00001101101111011001000110010100100000011011110111 00100010000001110011011011110110110101100101011101 00011010000110100101101110011001110010000000111111

bernmc
14-10-2006, 09:29 AM
01000110 01110101 01100011 01101011 01101001 01101110 01100111 00100000 01110111 01100101 01101001 01110010 01100100 01101111 00100111 01110011 00100000 00111010 00101101 00101001

Spirit
14-10-2006, 09:40 AM
01001110 01101111 00100000 01101110 01101111 01110100 00100000 01110100 01101000 01101001 01110011 00100000 01100010 01101100 01101111 01101111 01100100 01111001 00100000 01110011 01110100 01110101 01100110 01100110 00100000 01100001 01100111 01100001 01101001 01101110 00100000 01101100 01101111 01101100

psbarham
14-10-2006, 09:42 AM
01001001 01110011 00100000 01110100 01101000 01101001 01110011 00100000 01100001 01101110 01111001 00100000 01100010 01100101 01110100 01110100 01100101 01110010 00100000 01100110 01101111 01110010 00100000 01111001 01101111 01110101 00111111 00100000 01000001 00100000 01101100 01100001 01101110 01100111 01110101 01100001 01100111 01100101 00100000 01110100 01101000 01100001 01110100 00100000 01110000 01100101 01110010 01101000 01100001 01110000 01110011 00100000 01111001 01101111 01110101 00100000 01100001 01110010 01100101 00100000 01101101 01101111 01110010 01100101 00100000 01100110 01100001 01101101 01101001 01101100 01101001 01100001 01110010 00100000 01110111 01101001 01110100 01101000 00100001
power delivery looks a bit on-off there/lol . Booom Booom , ok i'm going

Paul C
14-10-2006, 05:08 PM
How are you logging this information and how do you transfer it

enigma
14-10-2006, 10:49 PM
How are you logging this information and how do you transfer it

Emanage Blue, Map ECU, and Wideband o2 sensor. All transferred via the laptop.

Wodjno
14-10-2006, 11:22 PM
E-Manage Ultimate, Innovate LC-1(Wideband 02 Sensor/Controller), Greddy Profec E-01 and Laptop.:scholar:

Wodjno
14-10-2006, 11:25 PM
01001110 01101111 00100000 01101110 01101111 01110100 00100000 01110100 01101000 01101001 01110011 00100000 01100010 01101100 01101111 01101111 01100100 01111001 00100000 01110011 01110100 01110101 01100110 01100110 00100000 01100001 01100111 01100001 01101001 01101110 00100000 01101100 01101111 01101100 01000001011011000111011101100001011110010111001100 10000001101011011011100110010101110111001000000111 10010110111101110101001000000111011101100101011100 10011001010010000001100001001000000100110101101111 01110010011011110110111000100000010100000110010101 1101000110010100100000001110110010110100101001 :vulcan: :p