[Former_Boosted_IS]

Originally Posted by dmboone25

This is a good question.

I am planning, upon getting my JB3, to instruct the dealer to not update my software from then on out--hopefully there won't be a problem.....

Just an FYI to all, tell them not to update your progman ever. You can sign for it and move on. It is your car and they have no right to do anything to your car that you don't want them to do.

[dmboone25]

Originally Posted by Former_Boosted_IS

Just an FYI to all, tell them not to update your progman ever. You can sign for it and move on. It is your car and they have no right to do anything to your car that you don't want them to do.

Thanks for the tip--I will definately do this, provided that the JB3 works as I am hoping it will--this lag crap is so damn frustrating!

[ezatnova]

Personally, JB3 or no JB3, I'd look to get the Progman update that fixes your lag whenever (if ever) that comes out. It can only make the car w/ JB3 even better then.

[ZJP]

This looks promising. I think 400whp on 93 pump is attainable with supporting mods.

[Kris]

Looks great! Email sent to Terry about V81 135 testing in cold Sydney, Australia.

We have 100ron octane here, and 98ron octane too.

[BMW_TT]

Originally Posted by iamvietness

sweeeeeeet! all 3 of us can just take up all lanes on PGBT and roll side by side to annoy others. hahaha

You got an AW like me. haha

Viet? Funny if I know some of your people.

[iamvietness]

Originally Posted by BMW_TT

You got an AW like me. haha

Viet? Funny if I know some of your people.

us vietnamese people are everywhere!!! you can't miss us!

[E92_335]

Originally Posted by RiXst3r

Yes, of course!!!!!!!!! Totally v81/2.92 diagnostically hidden.

And its even more invisible than other tunes because it uses NO external ground wires... everything is totally hidden in the ECU, and the engine bay looks 100% stock.

what about the boost solenoid bypass? no need to do that anymore?

[san~man]

Originally Posted by E92_335

what about the boost solenoid bypass? no need to do that anymore?

Nope

[serge]

nice numbers!

[RiXst3r]

Originally Posted by E92_335

what about the boost solenoid bypass? no need to do that anymore?

correct... no bypass. The jb3 now uses both solenoids

[stimpy]

Can someone refresh my memory on ECU versions? Mine is an 07 november build e92 and hasn't been updated...

V81 is what I have and 2.92 is the new one that broke tunes, detects tunes etc that helix, jb3, v3, etc are able to bypass. Correct?

[AlpineG05]

naw i think you have v80, v81 i believe started with march of 08 production cars and so forth.

[stimpy]

I plan on picking up a JB3 - Will JB3 work just fine on V80?

[XLR8MF]

V80 is the best DME there is. It yields no lag, the most hp with tunes and has no limitations as to hp and torque flags to be thrown. V81 and Progmans are good but make tuning a little more involved but the results are pretty much the same. JB3 works for all versions. This is why you should be adamant and make it clearly known to the dealer not to update your DME from V80 to any other version.

[stimpy]

Good stuff - thanks for your replies.

[GAaaAR]

Originally Posted by XLR8MF

V80 is the best DME there is. It yields no lag, the most hp with tunes and has no limitations as to hp and torque flags to be thrown. V81 and Progmans are good but make tuning a little more involved but the results are pretty much the same. JB3 works for all versions. This is why you should be adamant and make it clearly known to the dealer not to update your DME from V80 to any other version.

Please correct me if I am wrong. But isn't V80 = V81 and whatever progmans simply don't matter if you dont care about losing your warranty? I think the tuning potential is exactly the same thing isn't it? Or is it still more difficult to tune a V81 and 29.2 progman regardless?

[mwahlert]

So - how does a tuner ensure "diagnostic invisibility"? How does a tuner ensure that their "tune" does not trigger the "red flag" in the ECU diagnostic routines without having factual hard data of what these limits are?

[stimpy]

they test it... Hooking it up to a machine to read codes. I believe one or more of the tuners has a buddy who works for BMW and he hooks it up for him.

[XLR8MF]

Originally Posted by GAaaAR

Please correct me if I am wrong. But isn't V80 = V81 and whatever progmans simply don't matter if you dont care about losing your warranty? I think the tuning potential is exactly the same thing isn't it? Or is it still more difficult to tune a V81 and 29.2 progman regardless?

You are absolutely correct. it makes it more difficult to avoid the detection. That is what I meant by more involved tuning. The torque is a little more down low with V80 but still plenty strong on V81. Up top they are pretty much identical. And yes, if you do not care about your warranty then it does not matter. I have the V80 and had a bad experience at the dealership. So I do all of my own maintenance. if something comes along that I can't fix or my friends then I will be forced to go to BMW. But untill then my car gets better treatment and service from me than by BMW.

[stimpy]

What problem? I'm in Phoenix as well and my car hasn't seen a dealership yet. Any links to the story?

Not sure which BMW dealership I will be taking mine too for maintenance yet - maybe the new Chapman opening in Chandler.

[mwahlert]

Originally Posted by stimpy

they test it... Hooking it up to a machine to read codes. I believe one or more of the tuners has a buddy who works for BMW and he hooks it up for him.

Yes - but isn't the concern that once the "red flag" code is thrown it can not be turned off? Has someone sacrificed their car for testing?

Once the car is pushed past the "diagnostic invisible" limit of power output - and said "red flag" is thrown - can the dealer scan tool in fact clear this code or is it permanently stored (as some codes are permanently stored in Bosch Motronic ECU's)

I would be weary of any piggyback system proving absolutely diagnostically invisible until there is adequate factual information available regarding the limits of the ECU before it throws a $hit fit.

Also - how is timing added by a piggy back system? By tricking the IAT sensor? This means that the piggy back unit will never be able to bring timing past the base table before "adder" tables would compensate for temperature. I'm not sure how aggressive the stock tables are so this may not be of issue.