[ThomasMartin]

Originally Posted by shiv@vishnu

I don't understand your concern. v1.47 is not as strong as v2, especially above 5500rpm. And you will not 'pop' your turbos running either map.

Shiv

Morning Shiv

What settings will i have to run to have the same torque as 1.47 at this altitude?

[sambonator]

Maybe a mechanical boost gauge would put things into perspective, as from what I understand, mechanical boost gauges measure boost relative to the ambient atmospheric condition.

So according to M&M's analysis, Procede would read 13.5PSI but the mechanical gauge would read 15.6 PSI to 15.9 PSI (13.5PSI plus 2.1 to 2.4PSI atmospheric pressure difference)

Is this right?

[OpenFlash]

Originally Posted by ThomasMartin

Morning Shiv

What settings will i have to run to have the same torque as 1.47 at this altitude?

It's going to be different up there than it is down here. Go ahead and bump up the User TQ settings until you see 14-15psi at 4000rpm. That should do it. Sea level folks should not follow this advice as it will result in too much boost above 5000rpm.

Shiv

[ThomasMartin]

Originally Posted by shiv@vishnu

It's going to be different up there than it is down here. Go ahead and bump up the User TQ settings until you see 14-15psi at 4000rpm. That should do it. Sea level folks should not follow this advice as it will result in too much boost above 5000rpm.

Shiv

Thanks shiv thats what i been waiting for will my turbos not be working their assssss off to get the boost that high? i know the engine will be safe but stress on turbos will that be safe???

[OpenFlash]

Originally Posted by ThomasMartin

Thanks shiv thats what i been waiting for will my turbos not be working their assssss off to get the boost that high? i know the engine will be safe but stress on turbos will that be safe???

Your turbos will be just fine.

Shiv

[ThomasMartin]

Originally Posted by shiv@vishnu

Your turbos will be just fine.

Shiv

Ill send you the logs when i get close to 14.5 thanks once again for the help

[ThomasMartin]

it just doesnt go past 13.5 no matter even if i put the settings at 98%.
And for those of you that didnt believe it i am at 5500ft and procede reader is showing -3.8 PSI at idle.

[NM_BMW]

Subscribed!!! I receive my car next week and I live at 7000ft here in NM and this information will be very important.

[sambonator]

Just be careful if you ever drive your car down to sea level...

[NM_BMW]

Originally Posted by shiv@vishnu

Just run a max of 92-94% and be done with it. You probably have great skiing where you are. But your cars are slower.

Shiv

I'm sure this is why Shiv said this. If you ever go to sea level you'll be ok.

[OpenFlash]

Thomas-- Even if your boost readings only say 13psi, you are actually running 15-16psi of boost (pressure over ambient). The turbos aren't capable of compensating completely without overspinning. And trying to make them do that will almost certainly result in an overboost if you were to even drive down to sea level. We've done plenty of testing at your altitude so you're not seeing anything that is unexpected.

Shiv

[ThomasMartin]

Originally Posted by shiv@vishnu

Thomas-- Even if your boost readings only say 13psi, you are actually running 15-16psi of boost (pressure over ambient). The turbos aren't capable of compensating completely without overspinning. And trying to make them do that will almost certainly result in an overboost if you were to even drive down to sea level. We've done plenty of testing at your altitude so you're not seeing anything that is unexpected.

Shiv

so i should lower it a little to about 12 PSI reading ???

[ThomasMartin]

I will of course lower settings if i should travel to sea level so thats not a worry but at my current setting am i doing any damage letting the turbos overspin? or can i leave everything the way it is at 98%?

[e.n335]

Originally Posted by ThomasMartin

so i should lower it a little to about 12 PSI reading ???

I think Shiv said make sure to don't exceed 15 psi. So 15 - 3.8 = 11.2 psi. Expecting you will be at sealevel very rarely you could upper the boost by 0.5 - 1 psi ( IMO ) but drive carefully below 2500 feet and use 93 octane. That's I would do.

- Eugen

[e.n335]

Originally Posted by ThomasMartin

I will of course lower settings if i should travel to sea level so thats not a worry but at my current setting am i doing any damage letting the turbos overspin? or can i leave everything the way it is at 98%?

The turbos work much too hard, IMO.

0 psi + 15 psi ( turbo ) = 15 psi
-3.8psi + 15 psi ( turbo ) = 11.2 psi
-3.8psi + 18.8 psi ( turbo ) = 15 psi

The AA turbos blew at 18 psi.

- Eugen

[ThomasMartin]

Originally Posted by e.n335

I think Shiv said make sure to don't exceed 15 psi. So 15 - 3.8 = 11.2 psi. Expecting you will be at sealevel very rarely you could upper the boost by 0.5 - 1 psi ( IMO ) but drive carefully below 2500 feet and use 93 octane. That's I would do.

- Eugen

Lowering my boost back to 11 PSI with V2 is like half the Torque i had with 1.47 id rather change back and not stress my turbos and still have more performance. I think V2 is very viable for people at the cost that can take advantage of the torque settings, at altitude these settings dont help you much and V2 standard compared to V1.47 i think wont win in a race. Just my opinion dont shoot me down. Still got the question out, can i load the 1.47 map with the V2 harness on? cause i would like to dyno 1.47 than v2 on the same dyno just to compare?

I also have M&M here in south africa maybe we can get together and compare cars he has 1.47?

[M&M]

I don't think there's anyway you can be getting -3.8 psi in Johannesburg. Seriously. Something's wrong there. Your map sensor is reading wrong or there's a problem with the wiring. Let me find some of my logs and show you what I mean.

[e.n335]

Originally Posted by ThomasMartin

Lowering my boost back to 11 PSI with V2 is like half the Torque i had with 1.47 id rather change back and not stress my turbos and still have more performance. I think V2 is very viable for people at the cost that can take advantage of the torque settings, at altitude these settings dont help you much and V2 standard compared to V1.47 i think wont win in a race. Just my opinion dont shoot me down. Still got the question out, can i load the 1.47 map with the V2 harness on? cause i would like to dyno 1.47 than v2 on the same dyno just to compare?

I also have M&M here in south africa maybe we can get together and compare cars he has 1.47?

You can configure V2 to provide the same low torque as V1.47, just don't raise the numbers across the board. So you have the torque of V1.47 and the improvements of V2.0.2. That's what the user torque settings are for.

- Eugen

[cn555ic]

i don't think you can have the V2 harnass and run the V1.47...because it is set up for both boost seloniods to be used instead of the setup with V1, plus the extra wires added with the harnass controls other things

[e90AW335i]

Originally Posted by e.n335

You can configure V2 to provide the same low torque as V1.47, just don't raise the numbers across the board. So you have the torque of V1.47 and the improvements of V2.0.2. That's what the user torque settings are for.

- Eugen

Which tune you running right now Eugen? You back on V2 or still using JB2?

(off-topic, but I am curious)

[Nikolas]

Originally Posted by shiv@vishnu

It's going to be different up there than it is down here. Go ahead and bump up the User TQ settings until you see 14-15psi at 4000rpm. That should do it. Sea level folks should not follow this advice as it will result in too much boost above 5000rpm.

Shiv

Shiv:

What if you live in area like Tahoe? I travel regularly to Sacramento and Napa. That means I would be traveling often between 7000 feet and sea level with a car that would be set for altitude at an average of 6000 feet. Wouldn't the ECU be able to adapt to the altitude change or does the piggyback prevent this from happening?

I am looking at all possible tuning options, but I do not want an option that would require me to keep my laptop in the passenger seat manipulating torque values on the highway.

[e.n335]

Originally Posted by kyleh4852

Which tune you running right now Eugen? You back on V2 or still using JB2?

(off-topic, but I am curious)

Back on V2. Loaded latest 6AT map from the Vishnu website. ECU & PROcede resetted. Drove 5 miles up to now.

This has nothing to do with the JB2, it's a great product.

- Eugen