[OpenFlash]

Originally Posted by themyst

Assuming you are speaking strictly about the manuals here. There is no way for us autos to prevent spraying through the shift

You don't need to turn off spray between shifts in a 6AT. Because combustion never stops during the shift process.

Shiv

[Brey335i]

Originally Posted by shiv@vishnu

You don't need to turn off spray between shifts in a 6AT. Because combustion never stops during the shift process.

Shiv

6AT ftw!

I wish we auto guys got some new goodies too

[themyst]

Originally Posted by shiv@vishnu

I can only speak from experience. But, running a fully equipped PPS meth system, I have never experienced the consistent knock suppression that I am experiencing now with our PWM system. I don't necessarily believe it has to do with the quantity of meth being sprayed, but rather the inconsistently of flow in various load/rpm combinations which results in unstable fuel trims. And there is evidence that the DME does not advance timing when it closed loop fuel targets aren't met (or exceeded). This is especially true in 6AT cars during shifts. I can't prevent people from running ignition advance with PPS meth kits. But I will tell them what I've seen and let them make the decisions. It's not the greatest "marketing" to tell people that the advance feature isn't well suited for a PPS meth system. But if it prevents some people for running into problems, then great. We are already at max production capacity for PWM meth kits. I'm really not trying to stir up sales here.

Shiv

in the post-recall DME software, you are 100% right. I had no issues targeting 10 degrees of ignition in the mid-range before they put that stupid recall software on my car. It seems the new DME software is overly sensitive regarding fuel trims; if you're leaner than the expected target, the DME cuts ignition, same goes for an over-rich condition.

The issue is really bad when you increase fuel pressure from the OEM fuel system and then add meth on top. You create an over-rich condition which the closed loop fueling (post-recall software) cannot (or will not) compensate for, which causes timing to go negative post-shift on the 6AT.

My question to Shiv is, has this been fully resolved? Have you tested a 6AT car with meth on post-recall software where timing will recover to the full 10 degrees in the mid range and 14-15 at redline?

[themyst]

Originally Posted by Brey335i

6AT ftw!

I wish we auto guys got some new goodies too

we autos don't need no goodies. the manuals simply needed to catch up

[OpenFlash]

Originally Posted by themyst

in the post-recall DME software, you are 100% right. I had no issues targeting 10 degrees of ignition in the mid-range before they put that stupid recall software on my car. It seems the new DME software is overly sensitive regarding fuel trims; if you're leaner than the expected target, the DME cuts ignition, same goes for an over-rich condition.

The issue is really bad when you increase fuel pressure from the OEM fuel system and then add meth on top. You create an over-rich condition which the closed loop fueling (post-recall software) cannot (or will not) compensate for, which causes timing to go negative post-shift on the 6AT.

My question to Shiv is, has this been fully resolved? Have you tested a 6AT car with meth on post-recall software where timing will recover to the full 10 degrees in the mid range and 14-15 at redline?

All the 6AT cars I've tested recently (most of them with pwm meth) have the newest software update. And this issue is resolved. And if any particular car runs into this issue for any reason, it's easy to tweak the fuel map to resolve it. Just like Ilma did himself last week (but not running meth). We have added fuel trims to the list of logging channels, making this very easy.

Shiv

[dzenno]

Originally Posted by themyst

we autos don't need no goodies. the manuals simply needed to catch up

this isn't catching up, this is kicking the shit out of 6ATs LOL

[themyst]

Originally Posted by dzenno

this isn't catching up, this is kicking the shit out of 6ATs LOL

If it works, it will be great. Kill two birds with one stone; eliminate the 6MT bog and spend more time on throttle.

[themyst]

Originally Posted by shiv@vishnu

All the 6AT cars I've tested recently (most of them with pwm meth) have the newest software update. And this issue is resolved. And if any particular car runs into this issue for any reason, it's easy to tweak the fuel map to resolve it. Just like Ilma did himself last week (but not running meth). We have added fuel trims to the list of logging channels, making this very easy.

Shiv

does the tuning software apply to the og rev.2?

[OpenFlash]

Originally Posted by themyst

If it works, it will be great. Kill two birds with one stone; eliminate the 6MT bog and spend more time on throttle.

If?

[themyst]

Originally Posted by shiv@vishnu

If?

it's not public release yet. You know how that goes, Shiv.

[Dr_Dirt]

Originally Posted by shiv@vishnu

Catalyst contamination is only really an issue if you are spraying meth when you shouldn't be spraying it (between shifts, during fuel cut, etc,.) Basically, any situation where it is not being fully burned off in the combustion chamber. This is not going to happen with PWM meth control as you can see in the logs (turns off immediately during fuel cut).

I have a 2007 auto, can i leave the stock exhaust and cats in and use the Vishnu PWM meth safely?

[OpenFlash]

Originally Posted by Dr_Dirt

I have a 2007 auto, can i leave the stock exhaust and cats in and use the Vishnu PWM meth safely?

Yes, no problem.

[Dr_Dirt]

Originally Posted by shiv@vishnu

Yes, no problem.

So with the following mods:

1. your latest Procede
2. Vishnu PWM Meth kit
3. ETS IC
4. 93 oct <-- ok its not really a mod

Are we looking at ~400whp ?

[themyst]

Originally Posted by Dr_Dirt

So with the following mods:

1. your latest Procede
2. Vishnu PWM Meth kit
3. ETS IC
4. 93 oct <-- ok its not really a mod

Are we talking about ~400whp ?

throw an intake into the mix, pray for lower outdoor temperatures and you'll be close.

[OpenFlash]

Originally Posted by Dr_Dirt

So with the following mods:

1. your latest Procede
2. Vishnu PWM Meth kit
3. ETS IC
4. 93 oct <-- ok its not really a mod

Are we looking at ~400whp ?

We've made 400+whp will just DCI, Procede and PWM meth on top of 91. The DCI is pretty important since the stock box starts to restricts airflow above 370whp.

With a DCI added to those mods, you will easily be over 400whp. Regardless of conditions.

Shiv

[Alpina_B3_Lux]

Originally Posted by shiv@vishnu

They are great. Probably a little bit more power potential than the RB turbos. But with similar spool-up characteristics. But it's the upgraded wastegate actuators which make the biggest difference IMHO. With them, I can run much higher P values (in the PID boost control) without any oscillation/overshoot. Which means faster boost response with very low boost error. Even when running high boost. This was not the case with the other upgraded turbos (with stock actuators) I've tested. You could get the to work but it required some compromise elsewhere (lower P values, longer integral delays, etc,.)

shiv

Sorry if that is maybe a little OT here, but I wonder whether these upgraded actuators are the newer 8mm version or the older 6mm? As I already have the 8mm in my car (as it's an LCI) I would not really like to go back to the 6mm version. Or does Forge make two different kits?

Alpina_B3_Lux

[Dr_Dirt]

Originally Posted by shiv@vishnu

We've made 400+whp will just DCI, Procede and PWM meth on top of 91. The DCI is pretty important since the stock box starts to restricts airflow above 370whp.

With a DCI added to those mods, you will easily be over 400whp. Regardless of conditions.

Shiv

Are upgraded diverter valves needed?

[Brey335i]

Originally Posted by Dr_Dirt

Are upgraded diverter valves needed?

only if yours leak

[Jeff@TopGearSolutions]

Originally Posted by shiv@vishnu

Catalyst contamination is only really an issue if you are spraying meth when you shouldn't be spraying it (between shifts, during fuel cut, etc,.) Basically, any situation where it is not being fully burned off in the combustion chamber. This is not going to happen with PWM meth control as you can see in the logs (turns off immediately during fuel cut).

Not everyone has the pleasure of a PWM meth kit though

It should be mentioned you change your oil more often when running methanol though. Say every 5K.

[DaFish]

Originally Posted by Alpina_B3_Lux

Thanks, that's very useful. I just ordered them.
If someone were to change the internals anyway (as I may do early next year), that could also be an additional option.

Alpina_B3_Lux

what do those actuators do Alpina? in real life feel - .. more power, smoother power? what?

Thanks in advance

[jippii ensio]

Originally Posted by Alpina_B3_Lux

Thanks, that's very useful. I just ordered them.

Alpina_B3_Lux

Did you receive your actuators from Forge? Install? Review?

[NoQuarter]

So many of us have the 2.5 units now. How is this advance enabled in the setup? The parameter Start Ign Corr says 0-100%. How does that relate to 2 degress advance?