[rambino]

So what has everyones V2 Torque Map Settings Been and Describe how and why you chose it!

GO

[e90AW335i]

[sflgator]

Shiv, I think many of us v2 customers are still a bit perplexed on what TQ Curve values to use...say if you have a 6AT running on 93 octane, would you go for 100% across the board like max boost does or just use your baseline v2.0.1 map for a flatter TQ curve?

[sdwilly]

Originally Posted by sflgator

Shiv, I think many of us v2 customers are still a bit perplexed on what TQ Curve values to use...say if you have a 6AT running on 93 octane, would you go for 100% across the board like max boost does or just use your baseline v2.0.1 map for a flatter TQ curve?

Or an AT running 91 (Best readily available out here).

[e.n335]

IMO, Shiv's settings are perfect for both AT and MT cars. Perfect flat torque curve. However, if I had the MT, I would try the 100% across the board settings as well.

- Eugen

[stefano7171]

Originally Posted by e.n335

IMO, Shiv's settings are perfect for both AT and MT cars. Perfect flat torque curve. However, if I had the MT, I would try the 100% across the board settings as well.

- Eugen

+1

[e.n335]

Here you see (simplified) what Shiv is doing with his predefined v2.0.1 user adjustable torque map settings:



The graph shows the same peak power but not that huge torque between 2.500 - 5.500 rpm. Exactly what I need.

This gives me a lot of hope for my car's AT tranny

- Eugen

[per]

I have been driving V2 for a couple of days, and the power is great.
But I must confess that I miss the huge torque bump of V1,47 around 2500-3500rpm.
I loved that feeling of easy access power, I wonder if it could bee possible to increase the torque at low rpm. any thought´s?

[kaji335i]

Originally Posted by per

I have been driving V2 for a couple of days, and the power is great.
But I must confess that I miss the huge torque bump of V1,47 around 2500-3500rpm.
I loved that feeling of easy access power, I wonder if it could bee possible to increase the torque at low rpm. any thought´s?

did you change the default torque settings? the default setting have the torque lowered from the 2500-4500 rpm range.

[jthurs]

Yes please anyone post your V2 Settings and what kind of gas/exhaust/intake you are running and reviews! I'm just running Shiv's recommended V2.0.1 map with cat-back exhaust and 96 octane right now. Fun Fun Fun!

[NPDAN]

Originally Posted by jthurs

Yes please anyone post your V2 Settings and what kind of gas/exhaust/intake you are running and reviews! I'm just running Shiv's recommended V2.0.1 map with cat-back exhaust and 96 octane right now. Fun Fun Fun!

I left my settings at the default until my ECU adapts then I will change it in small increments. Im also runnin approx 96 octane..10 - 11 gal 100 and the rest 91. I also have Borla exhaust and as soon as Bavdom begins production on the intakes, I'll have mine. So Im pretty much in the same boat as you... It's a blast huh

[OpenFlash]

If you guys are running 96oct, go ahead and crank everything up to 100%

shiv

[jthurs]

Originally Posted by NPDAN

I left my settings at the default until my ECU adapts then I will change it in small increments. Im also runnin approx 96 octane..10 - 11 gal 100 and the rest 91. I also have Borla exhaust and as soon as Bavdom begins production on the intakes, I'll have mine. So Im pretty much in the same boat as you... It's a blast huh

Nice! Speed obsessed minds do think alike I guess... where in LA did you get your 100 octane? I paid $8 something per gallon at the 76 on pico and barrington.

[NPDAN]

Originally Posted by jthurs

Nice! Speed obsessed minds do think alike I guess... where in LA did you get your 100 octane? I paid $8 something per gallon at the 76 on pico and barrington.

F that bro. I get my 100 at the 76 station off Chesboro in Agoura.. $5.69 per gallon... I think Im gonna bump everything up to 100 as Shiv suggested...

[NPDAN]

Originally Posted by shiv@vishnu

If you guys are running 96oct, go ahead and crank everything up to 100%

shiv

Thanks Shiv, will do

[rambino]

But What are everyones Personal Settings and Why??

Leftcoastman had higher HP ratings with a slight decrease in settings..

Leftcoastman... can you tell us the settings you had to get the higher numbers?? i cant find the thread.. something about not blowing as much hot air doing 100% ...?

[e.n335]

Originally Posted by rambino

But What are everyones Personal Settings and Why??

Leftcoastman had higher HP ratings with a slight decrease in settings..

Leftcoastman... can you tell us the settings you had to get the higher numbers?? i cant find the thread.. something about not blowing as much hot air doing 100% ...?

AFAIK he did:

3K 94 %, 3.5K 94%, 4K 96%, rest 100%

- Eugen

[per]

I am running 100% all over , shell 99 octane (us 93-94) i have no problems att all.
I wrote this in an another thread
"
I was taking to a friend, he works with developing turbo motors on a Swedish car company that starts with a Vo and end with a vo.
The reason for using higher octane is to reduce knock, cold weather has the same effect.
The conclusion was that high octane might not have an effect at all if it cold outside, the Ecu has already reduced timing to perfect position."
Could this be right?

[zenmaster]

Originally Posted by per

The reason for using higher octane is to reduce knock, cold weather has the same effect.
The conclusion was that high octane might not have an effect at all if it cold outside, the Ecu has already reduced timing to perfect position."
Could this be right?

Knock comes from hot surfaces. (The engine will never knock if the cylinder temp/pressure is below a certain amount.) Charge temp. reduces surface temp. Colder charge temp. further reduces surface temp.
OTOH, higher octane increases the temp. threshhold for ignition of fuel. So air temp and octane work together.

Originally Posted by http://www.faqs.org/faqs/autos/gasoline-faq/part3/section-1.html

An increase in ambient air temperature of 5.6C increases the octane requirement of an engine by 0.44 - 0.54 MON [27,38]. When the combined effects of air temperature and humidity are considered, it is often possible to use one octane grade in summer, and use a lower octane rating in winter. The Motor octane rating has a higher charge temperature, and increasing charge temperature increases the tendency to knock, so fuels with low Sensitivity ( the difference between RON and MON numbers ) are less affected by air temperature.

This is why it's good to release boost upgrades in fall/winter - less customer support problems.

[per]

Thank you Zenmaster That was new information for me.

[zenmaster]

Originally Posted by per

Thank you Zenmaster That was new information for me.

I worked it out here:

US measurement is determined by (RON + MON)/2 = "AKI" (or "CLC")
AKI stands for Anti Knock Index
CLC stands for Cost of Living Council

91 RON, ~82-83 MON = ~87 AKI
95 RON, ~84-85 MON = ~90-91 AKI
98 RON, ~88 MON = ~93 AKI
100 RON ~89 MON = ~94 AKI

5.6C (10.08F) 0.44 - 0.54 MON

So a difference in temp of 50F is ~2.5 MON, 100F is ~5 MON.

In other words, everything else being equal, 91 octane has the same anti knock effect of 93 octane only with temp difference above like 50-60F. So it could be freezing outside at 30F-40F for 91 octane vs hot day of 80F-90F for 93 octane.

[zenmaster]

Besides increased power, increased safety margin is another reason cold air intakes (in conjunction w/ intercooler) can be important mods. Some CAI can get inlet temps to only 10F above ambient temp, while during heat soak the stock intake might deliver 60F over ambient. In other words, on a 80F day, you could get 90F into your intake manifold with an aftermarket CAI vs 140F on a stock intake. As shown above, that alone can make up for 91 vs 93 octane.