I think what im trying to ask is what would you recommend for the best overall outcome of the tune datalogging vs dyno charts

 

The hide-a-tune will pass the dealership's check but beyond that who knows.

Sorry for my misunderstanding, thanks for the clarification.

Datalogging AND dyno charts are going to give us the best possible result. Datalogs do not tell us how much power the engine is making, only if the tune appears to be running correctly.

I tell people this, also. Hide-a-tune is really meant to deal with dealerships that are essentially overstepping their boundaries trying to invalidate warranties strictly on the basis of there being a tune on the car (which to my understanding is illegal anyway).

 

My 3 and 5 year old tell me the same thing!

 

Thank you vince, ill be getting your tune sometime soon here

 

Vince, since I see you lurking around in here dropping knowledge bombs as usual...

If I don't get the switchable programs with my tune, and always have your performance tune on, will it register legit on the Tech 2 scans? Or do I need your flip tune, put it into 'stock' mode, then take it in for work for it to be stealth?

 

LOL - I had a few free moments to get on the forums this morning.

Regardless of how the new tune is configured (switchable or not) it will always report as a stock tune to the tech2.

 

I am broke tried to tweak his trifecta tuned ECM, but because it is a custom OS HP Tuners software cannot read it.

 

hmm... no bueno if you decide to go with another tuning route down the road...

 

That's the old tune. The new one should not have this problem

 

Vince just wanted to clarify what CIA said on the other thread. If the data cable purchased for personal data logging use, you will be able to OCCASIONALLY fine tune the tune on the SC, correct?

 

Yes, we're really flexible about that sort of thing. Believe it or not but we love to see datalogs because the more data we have the better job we can do.

 

Very very interesting. Since the 2.2 (at least the 05-06) does not have a t/c button, how would one be able to switch 'tunes.' Could some kind of manual switch be involved or some kind of 'command' like altering tht GM Stage 3 tune for the LSJ cars.

 

We could trigger off the cruise control master enable, if the car has one.

There are other options, too, like using an unused input at the ECM.

 

This is great news. I could never understand why people would spend so much money having their car re-tuned by some guy on a dyno every time something changed.

Also there would be 2 modes for the SC, correct? I noticed that one of the ways you said you can switch the tunes in the TC is through the cruise control, so I'm assuming it can be setup the same in that aspect.

Appreciate the info Vince

noticed an answer to my question in your post previous to this about the cruise control so nvm

 

We are investigating doing hide-a-tune and select-a-tune on the SC also. I've received a fair number of inquiries about this.

We also want to add launch control to those cars as well. Looks like I've got my fall projects mapped out. Lol

 

Launch control would be quite amazing!!! I've been looking at the WOT 2-step box thing and I'm not 100% sold on it, so if you ended up doing this I am definitely a future customer

 

Works on my '08 Corvette, and has been tested on '06 LE5 and '07 L61... Just need to write the code for the LSJ.

 

I was thinking of getting an intake at the same time that I got you hida-a-tune. My question is if im still running my stock tune on the sri then wont I have issues with the maf readings being skewed while not in comp/tune mode??

 

Well when you get it all figured out and need a tester for it. I will gladly volunteer!!!!

 

The select-a-tune only substitutes some of the tables and the ones we change to address MAF skewing are not changed between tunes so this is not a problem.

 

Vince, why is this cable so expensive?

OT...I just installed Hahn's CAI and noticed my boost is not ramping up past 12psi...is this the ECU compensating for extra flow? I'm hoping your tune will overcome this...or did I screw up the install?

 

I don't know, I guess you'll have to ask the people that sell them to me why they charge so much. Lol

Jokes aside, this is not just a straight-through cable that has an OBD2 connector on one end and a USB connector on the other. There is a microcontroller, microcode, ROM, RAM, and a bunch of circuitry (in other words, it's a full computer itself) that converts OBD2ese to USBese.

Also, there are cheap OBD2 cables out there but they cannot be used for reflash, only data acquisition. Reflash has special requirements in the cable (buffering, etc)

Until they start putting CAN/J1850VPW ports on PCs (which will probably never happen, at a reasonable price anyway) we'll need to continue to use these devices.

 

I understand...thanks for the explanation Vince...any thoughts regarding my OT question?

 

Interestingly enough, from what I can tell the boost gauge is NOT driven by actual manifold pressure. It seems to be some sort of calculation based on airflow so if the airflow numbers are skewed, the boost gauge will be skewed.

So you may actually have 20psi of boost but it only reads 12psi because that's all the airflow the ECM thinks is going into the engine (before trim adjustment)

 

Yes, the boost gauge uses a calculated value not actual manifold pressure but I think what he is experiencing is that the ECM is reaching its desired airloads more easly due to the increase airflow the intake should provide. So, for it to see 150% airload for example it might have to boost only 10 psi instead of 13 psi.