[Ilma]

Originally Posted by shiv@vishnu

Baring any dramatic changes to IAT, The DME will always target the same ignition advance setpoint curve. At WOt, this is ~10deg BTDC through the midrange, ramping up to 13-14deg BTDC by 7000rpm. In most cases, this advance curve is not reliably achievable on pump gas when running over 13psi of boost. And when conditions get bad (higher IATs), this advance setpoint is too aggressive for even 11-12psi of boost.

So without the ability to change ignition advance setpoint, an engine WILL find itself overadvanced (experiencing knock) in these conditions. The DME's knock control system will intervene and yank out 3-6 deg of timing after knock is detected. But that's reactive, not proactive. There are also knock/octane adaptations but that largely dictates the rate of retard and positive decay post knock event.

There really is no support to the argument that ignition timing adjustments aren't needed in associated with higher boost levels. Those who claim that due so because they don't have the ability to make thees changes with their hardware platform. Either that or they just don't have the knowledge to unerstand this basic tuning fundamental.

Even BMW remapped the ignition advance setpoint curve with their Power Kit (2-3 deg less advance through the midrange). And that was only with a modest boost increase.

Adding in race gas makes this all a moot point of course. It hides a lot of tune shortcomings by making knock far less likely.

Shiv

This man speaks the truth!

Time and time again my datalogs corroborate these facts.

Introducing some tune-based timing retard on pump gas, can result in more overall timing advance than relying on the knock sensors alone to manage timing.

Remember....each time you get a knock event, the DME pulls out 3 degrees of timing - and it doesn't recover instantly.

It's better to avoid the knock event by reducing some timing up front.....you end up with higher timing in the end.

Your engine will thank you.

[silvermist99]

whats the difference between the autotune that comes with the $645 version and the optional 2nd autotune? Also shiv what method do you use to Ship to Canada? USPS? and how do u declare it

[OpenFlash]

Originally Posted by silvermist99

whats the difference between the autotune that comes with the $645 version and the optional 2nd autotune? Also shiv what method do you use to Ship to Canada? USPS? and how do u declare it

No difference is autotune functionality. We ship via UPS. Robert handles all of the shipping details so probably best to email him specific questions at sales@vishnutuning.com. He is in Taiwan for the next week but is still checking mail regularly.

[AltecBX]

Originally Posted by shiv@vishnu

Baring any dramatic changes to IAT, The DME will always target the same ignition advance setpoint curve. At WOt, this is ~10deg BTDC through the midrange, ramping up to 13-14deg BTDC by 7000rpm. In most cases, this advance curve is not reliably achievable on pump gas when running over 13psi of boost. And when conditions get bad (higher IATs), this advance setpoint is too aggressive for even 11-12psi of boost.

So without the ability to change ignition advance setpoint, an engine WILL find itself overadvanced (experiencing knock) in these conditions. The DME's knock control system will intervene and yank out 3-6 deg of timing after knock is detected. But that's reactive, not proactive. There are also knock/octane adaptations but that largely dictates the rate of retard and positive decay post knock event.

There really is no support to the argument that ignition timing adjustments aren't needed in associated with higher boost levels. Those who claim that due so because they don't have the ability to make thees changes with their hardware platform. Either that or they just don't have the knowledge to unerstand this basic tuning fundamental.

Even BMW remapped the ignition advance setpoint curve with their Power Kit (2-3 deg less advance through the midrange). And that was only with a modest boost increase.

Adding in race gas makes this all a moot point of course. It hides a lot of tune shortcomings by making knock far less likely.

Shiv

I learn something everyday.
Shiv, you should do a weninar for all your customers and this website every week for 30 mins. It'll be better for all us to understand when there is interaction involved.

[possible335i2008]

Just ordered the v5...excited about my new tune!

[ttomczak]

Originally Posted by shiv@vishnu

Not stupid at all Procede does not come with a usb/serial cable. You'll need to get one if you want to hook up to a computer to make changes. But that's completely unnecessary due to autotuning. If you do need one, just get a simple db9(serial) to USB cable for Radio Shack or order one online. Should only cost $20-35. Just make sure it is compatible with your operating system. Some of the older cables are flaky with windows 7.

Shiv

Shiv, I think his question was NOT did you supply the cable, but did you update the new controller with a USB interface rather than serial...

From your answer, I would assume it's still serial...

[Dmacc]

So when v5 is released and someone were to order it to try it out for two weeks, and say they wanted to return it, would the VIN locking charge come out of the consumer's wallet to reset it, or would Vishnu be the one paying for the new licensing?

[Pseudo Nim]

You know, I don't like this VIN locking thing - but then again, I find it absolutely hilarious that people are bugging Vishnu about losing resale value on their Procedes after they VIN-lock. It's _really_ not their problem Why would Vishnu care if you can, can't, or can-but-for-less resell your Procede, since they make no money on either the upgrades or the process itself? Heh.

[themyst]

Originally Posted by Dmacc

So when v5 is released and someone were to order it to try it out for two weeks, and say they wanted to return it, would the VIN locking charge come out of the consumer's wallet to reset it, or would Vishnu be the one paying for the new licensing?

i am pretty certain the unlock fee doesn't apply for a return... only really hurts the used tune market.

[Calvin@Vishnu]

Originally Posted by Dmacc

So when v5 is released and someone were to order it to try it out for two weeks, and say they wanted to return it, would the VIN locking charge come out of the consumer's wallet to reset it, or would Vishnu be the one paying for the new licensing?

No of course not. Refund in full.

[pinto]

Hi Vishnu guys, some update about the V5 units shipping?

[zerep1]

i know im bringing this back from the dead but do i need to send a vin locked v4/v5 in to be unlocked or is it done remotely i really would miss my power if i needed to pull the procede put

[jdbretz]

Originally Posted by zerep1

i know im bringing this back from the dead but do i need to send a vin locked v4/v5 in to be unlocked or is it done remotely i really would miss my power if i needed to pull the procede put

Just purchase the unlock license from Vishnu, and I believe you can do the unlock yourself if you hook up the USB cable to your computer. Once you pay for the unlock code, I would imagine it would come with instructions, but if not, email sales@vishnutuning.com for help.