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Old 02-23-2013, 12:34 AM   #1 (permalink)
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Flashing the tune

What's in the box:
1 - Bolt Tmap Sensor
2 - Connector Sen-MAP w/ leads
1 - Sticker Premium Fuel
1 - Label Cert
2 - O-Ring T-MAP
2 - Sensor T-MAP
1 - GM Performance Decal
1 - Instruction Sheet


This is what comes with the stage kit per CED's website. My question is, does the code that the dealer needs to flash the tune on the instruction sheet? Or where does that come from?
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Old 02-23-2013, 12:45 AM   #2 (permalink)
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Quote:
Originally Posted by peoriasky View Post
What's in the box:
1 - Bolt Tmap Sensor
2 - Connector Sen-MAP w/ leads
1 - Sticker Premium Fuel
1 - Label Cert
2 - O-Ring T-MAP
2 - Sensor T-MAP
1 - GM Performance Decal
1 - Instruction Sheet


This is what comes with the stage kit per CED's website. My question is, does the code that the dealer needs to flash the tune on the instruction sheet? Or where does that come from?
Yes, all the info they need is on the Instruction sheet... Good luck with the GMPP tune..
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Old 02-23-2013, 03:14 AM   #3 (permalink)
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I didnt get any stickers, i may go have a chat with the thieving bastards at the dealership tomorrow
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Old 02-23-2013, 10:41 AM   #4 (permalink)
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Originally Posted by Leppyxr2 View Post
I didnt get any stickers, i may go have a chat with the thieving bastards at the dealership tomorrow
Years ago when I had my tune installed by my GM Dealer they forgot to put the labels on. I went back a few days later and made them find them which took them 2 weeks...
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Old 02-23-2013, 12:35 PM   #5 (permalink)
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The install process includes hooking your EVM to the GM LAN and downloading the updated code. When the install is done, your vin is annotated in the GM database so your new baseline software is the GMPP version. If they do maintenance in the future, they need to install th GMPP software
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Old 02-23-2013, 01:06 PM   #6 (permalink)
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The first page of the documentation has a place for an authorization code in which they place a sticker with an 8 digit code.

The directions are mostly how to connect the wiring, so if you get the kit with the harness adapter, they can skip right to page 5.

This page has calibration part numbers that correspond to the vehicle [Sky/Sol Auto or Manual trans]
This number, the authorization number from page 1 and the serial number on the box are all needed to get the tune. As such
DONT FORGET THE BOX OR DIRECTIONS
when you go to the dealer

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Old 02-23-2013, 03:00 PM   #7 (permalink)
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Quote:
Originally Posted by peoriasky View Post
What's in the box:
1 - Bolt Tmap Sensor
2 - Connector Sen-MAP w/ leads
1 - Sticker Premium Fuel
1 - Label Cert
2 - O-Ring T-MAP
2 - Sensor T-MAP
1 - GM Performance Decal
1 - Instruction Sheet


This is what comes with the stage kit per CED's website. My question is, does the code that the dealer needs to flash the tune on the instruction sheet? Or where does that come from?
Just curious, but why did you choose the GMPP over a more robust and modifiable tune like Trifecta?
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Old 02-23-2013, 04:36 PM   #8 (permalink)
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Speaking for myself, it gives very good performance, keeps the factory warranty, and while allowing mods to give even more power, it's conservative enough to pretty much guarantee a long living motor.

Lots of people love other tunes and in fact I have the Ls2edit tune on my converted car. But I have basically one guy who maintains my tune and essentially no recourse if he can't or won't maintain the tune.

Also, in order to compete with the factory tune, after market tunes have to provide some advantage to compete with the factory tune. In my opinion, they give a bit more performance but also bring along more risks and increased stress on the motor which can affect longevity. I wanted to have a reliable car I can drive for years.
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Old 02-23-2013, 04:38 PM   #9 (permalink)
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The gmpp tune is as changeable as the trifecta or as any other tune.
Its just a little safer on the levels because GM would not to warranty something that pushes the engine the limit.
But
That does not mean you cant change it after the fact.
It just ends up costing more if you do that
But
With a high flow cat the gmpp tune will deliver almost 300 hp to the rear wheels which is pretty much what all tunes end up with shy of swapping the turbo
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Old 02-24-2013, 08:04 AM   #10 (permalink)
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My reasons pretty much mirror those of Rob's. I had a cobalt ss years ago and my grand plan was to make it the fast LSJ out there. I did it all, every bolt on, upgraded supercharger, meth injection, custom hptuners tune, the works. And it was fast but with all that work came problems and reliability issues. For this redline I just want a little bit more kick in the pants and to not have the nagging issues I had with the heavy modded cobalt.
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Old 02-24-2013, 06:33 PM   #11 (permalink)
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Originally Posted by Elff View Post
With a high flow cat the gmpp tune will deliver almost 300 hp to the rear wheels
Don't think so - that would be 300 or a tad more at the flywheel. If it were 300 rwp you'd be headed toward 350 bhp. If that is what you meant, then maybe you can post some dynos that support it - I just haven't seen anything like that with just the GMPP and a high flow CAT.
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Old 02-24-2013, 07:00 PM   #12 (permalink)
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Someone already posted the dyno to prove it. I'll let you do the search.

It's not that hard to believe.
a High Flow cat can add up to 20-30 hp depending on the tune.
The GMPP is dyno proven at 263-265hp at the rear wheels. I personally posted one of those Dyno Charts and had 4 other people dyno the same day on the same dyno and achieve results all within 2 hp.
So add 20-30hp at the rear wheels for the high flow cat and you have
285-295 hp at the rear wheels depending on the vehicle

285-295 is almost 300.

It's been proven. Just a matter of how much you want to argue the definition of the word almost
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Old 02-24-2013, 07:28 PM   #13 (permalink)
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Quote:
Originally Posted by Elff View Post
Someone already posted the dyno to prove it. I'll let you do the search.

It's not that hard to believe.
a High Flow cat can add up to 20-30 hp depending on the tune.
The GMPP is dyno proven at 263-265hp at the rear wheels. I personally posted one of those Dyno Charts and had 4 other people dyno the same day on the same dyno and achieve results all within 2 hp.
So add 20-30hp at the rear wheels for the high flow cat and you have
285-295 hp at the rear wheels depending on the vehicle

285-295 is almost 300.

It's been proven. Just a matter of how much you want to argue the definition of the word almost
Yeah - but!

The GMPP tune is 290 at the flywheel on the GM dyno which translates to around 250 or a bit less whp, regardless of what other various makes of dyno might read (notoriously high or low and really only useful for gauging relative changes in tune on a given car).

As for 30 hp bump from the Solo CAT, even they only claim 15 bhp, which equates to about 13 whp, so that would result in about 263whp , or 309 BHP - and those are the numbers I have seen mentioned - around 310 BHP or so.

I've never seen anyone claiming 300 whp=350 BHP with that combination, although I'm sure you could find a dyno somewhere that might read that.
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Last edited by wspohn; 02-24-2013 at 07:44 PM.
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Old 02-25-2013, 03:57 AM   #14 (permalink)
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I guess we do need to define the word Almost

Quote:
Originally Posted by Websters
Definition of ALMOST
: very nearly but not exactly or entirely
No one claimed 300.
We showed results for
Very nearly but not exactly 300 Wheel hp

People don't have access to the GM Dyno, so they use the ones that local companies have.
That's normally a Dynojet, Dynocom or Mustang.

The results when using the same Dyno allow for as consistent a comparison as possible, but it's never Exact.

The results that many have posted mimic what I have stated and the posts show that.
Here is one post on this forum with the difference between stock and GMPP
Kenny's GMPP Turbo Upgrade Dyno Results
This was one of the cars that participated in the following event
Jersey Roadster Dyno Day – 11/22/08
Funny thing is the Non GMPP tuned car had the worst results this day.

Here is a Wester Tuned car with a high flow cat that makes 287.5 Wheel HP
Index of Owners Mods - for your signature

So this leads me to requote and conclude what I said about the GMPP with High Flow Cat vs 3rd party tuned Kappas with a High Flow cat

Quote:
which is pretty much what all tunes end up with shy of swapping the turbo
On the same Dyno, a GMPP + Hi Flow Cat Kappa will have Similar power to a 3rd party tuned Kappa with a Hi Flow Cat.

I better define Similar real quick
Quote:
Originally Posted by websters
sim·i·lar [ símmələr ]
alike: sharing some qualities, but not identical
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Old 02-25-2013, 09:02 AM   #15 (permalink)
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Almost 300 whp or 300 whp, you are still claiming that the GMPP tune with 290 BHP suddenly shoots to 340-350 BHP (equivalent to your 'just below 300 whp) with the addition of a single mod that the vendors only claim 15 BHP boost from. Am I reading you wrong?

It looks like you claim in whp what the factory and the after market vendor claim in BHP - usually a 15-18% difference.

We may just be arguing about high reading dynos, I don't know. Thanks for the referenced threads, although one appears to be nothing but an abortive attempt to arrange a dyno session.

I think you and I are on the same page about what effect various mods have, we are just quibbling over dyno readings. I don't know how GM measures their engines, perhaps they are intentionally conservative, although in my experience if they had a dyno that could kick out a reading of 300 or better, the marketing weasels would have been all over it.
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