GM Stage Kit info from the Senior Engineering Manager of GM

[bradyb]

Originally Posted by Critterman Because the new ECM's will tell the dealer you have been tweaking them. $200 no warrante claims $1000 still under warantee if a problem develops. Your call

Or $150-$350 for an ECM to swap with. Keep the stock ECM in a special place ready to go for dealer visits.

I guess you have to decide now where you'll stop with engine mods. Quick and clean GMPP stage II for 300 horsepower or incremental gains with compressor wheel, charge pipes, etc...

The ironic thing is that with out the stage II sensor upgrades you might be stuck at airflow levels associated with 310 horsepower at 22.5 PSI anyway.

Sorry, I'm just rambling out loud.

[LatinVenom]

Shabby,
I know they have to be tune together, I was just hoping that GM Roadster and PCMforless would also get with BTF and offer it with their tunes.
Now the big question would be, to take the GMPP tune and see if it can be modify to take care of the larger wheel.
The other way would be to take the new sensors and incorporate them in the Westers, GM roadster, and PCMforless.

[GregGXP]

Originally Posted by bradyb Is a $1,000 Stage II with the upgrade airflow/pressure sensors worth $1,000 if you're getting similar or better power numbers for a $200 reflash?

Didn't I read that the Stage II also included an intercooler upgrade?

[MomsSol]

Originally Posted by RichSol Are you toying with us?!

My sources are very reliable!

[RichSol]

Originally Posted by GregGXP Didn't I read that the Stage II also included an intercooler upgrade?

I think it was a fuel rail upgrade. At least the stories I found.

[brentil]

I told you so.

Originally Posted by GregGXP Didn't I read that the Stage II also included an intercooler upgrade?

No, it upgrades 2 sensors and that's all besides the tune.

[bradyb]

Originally Posted by brentil I told you so. .

Yes, our fearless leader has continued to hold on to hope until the time of deliverance.

[BaldTurboFreak]

I hope they are 3.3bar sensors...
3.3bar delphi

Furthurmore I hope we can access the pcm via HPT.

It would be so badasss, I'd have to go old school & write the entire tune listening to Megadeth:The Punishment Due. (extra mean tune)

[Moose GXP]

Who wants to lay down bets on how the GMPP tune compares from a HP standpoint to the other tuners? I bet you the $1000 gets you 10-20 HP less...if you don't think the GM warranteed tune won't be less aggressive I'd like to hear why.

[shabby]

Originally Posted by BaldTurboFreak I hope they are 3.3bar sensors... 3.3bar delphi Furthurmore I hope we can access the pcm via HPT. It would be so badasss, I'd have to go old school & write the entire tune listening to Megadeth:The Punishment Due. (extra mean tune)

Watch gm lock the ecm for you

Originally Posted by Moose GXP Who wants to lay down bets on how the GMPP tune compares from a HP standpoint to the other tuners? I bet you the $1000 gets you 10-20 HP less...if you don't think the GM warranteed tune won't be less aggressive I'd like to hear why.

For 5 times the price you will get half the performance i'll bet.

[rlhammon]

Originally Posted by MomsSol Well, well, well ..... seems like patience may indeed be a virtue! How does SEPTEMBER sound to everyone??? Hmmmmm??? Yes, thats right, Stage II Planned release is for next month thru GM Accessories via Dealerships. No specific date has been set as yet ... BUT it IS coming for the GXP and Redline!

You beat me to it!!

I picked up a lot of information yesterday (lots of projects being cancelled / delayed... nothing affecting our cars), and heard this was planned for September. Problem was I couldn't confirm it with anyone at GM yesterday... did get something this morning, came on here and saw the thread blew up yesterday.

As for what's done in the kit.. Brentil mentioned it.. but from some of the folks on the Setup show:

"As you can kind of see after the kit is mentioned, we had to put in a new MAP sensor and maybe a TPS or something (can't remember, but there was another sensor/switch), then there was a reflash by one of the GM guys. Don't know power numbers, but the cars would generate substantial wheelspin out of 3rd gear corners if you weren't smooth. Rolling restarts in first gear required some pedaling too."

I'll gladly eat crow come September... and I'm going to kick the crap out of my "sources" this weekend when I'm back in Detroit too!

I'm not liking the possibility of the ECU being locked and some of the "features" which have been added which can detect the reflash... wondering if that's now built into the new flash.

Obviously our best guess for horsepower is going to be 290 (based on the SD-290 concept with the kit).. but I've heard a 310 number as well in passing.

Oh.. and maybe I'm out of the loop here.. but who does a $200 flash for the GXP?? Wester's is $495 or over $600 for the "race tune" (not sure what SD tune is).

[bradyb]

Originally Posted by rlhammon Oh.. and maybe I'm out of the loop here.. but who does a $200 flash for the GXP?? Wester's is $495 or over $600 for the "race tune" (not sure what SD tune is).

They're new this week but PCMs for less $200, and Gmroadster $300.

[brentil]

GM announced the power ratings at a previous show and then confirmed it again at the Mecca tour.

GM Stage II Kit

• Under $1000
• 2 sensors and a voucher to have the tune done by the dealer
• Fully covered by your vehicles GM warranty
• 290~295 HP
• 310 lbs-ft of Torque

Items I haven't gotten clarification on but we've heard rumored.

• 7000 RPM
• 23 PSI max boost level

We all know the tunes offered by other vendors will provide more power and costs less, it's always how the after market has worked. It's up to the buyer to decide what is most important to them in the way of features.

[xmitterengineer]

I'll have a side order of tire smoke with my 100,000 mile power train warranty please.





Rickey.

[COOLTURBO]

Does anyone know for sure that if you do get the GM stage 2 upgrade that you will still have your warranty?