I searched and couldnt determine if anyone had posted this in here yet so thought I'd post. Apologies if it's a dupe post.

Wop

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Subject: Availability of Engine Calibration for Use in High Ambient Temperature and High Load Conditions for Competitive Driving #06-06-04-051A - (07/19/2007)

Models: 2006-2007 Chevrolet Cobalt SS

2006-2007 Pontiac Solstice (RPO Z0K Only)

2007 Pontiac G5 GT

with 2.4L Engine (VIN B -- RPO LE5) and 5 Speed Manual Transmission (RPO M86 or MA5)

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This bulletin is being revised to add the Pontiac G5 GT and the 2007 model year. Also, provided are the calibrations for these additional models and the requirement to contact Techline. Please discard Corporate Bulletin Number 06-06-04-051 (Section 06 -- Engine/Propulsion System).

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This is to advise owners who intend to use their 2.4L LE5 engine-equipped vehicle in competitive driving environments under high ambient temperature conditions and/or high loads for extended periods of time of the availability of an engine calibration that will allow the engine to operate at full power under these conditions. This calibration in no way alters the power output of the engine under normal operating conditions. When using this calibration, full synthetic oil (Mobil 1 5W30 or the equivalent) is required.

These calibrations are to be used in Pontiac Solstice, G5 GT and Chevrolet Cobalt SS specific model vehicles only. These calibrations do not apply to all LE5 engines.

Calibration Information
To obtain the calibration, contact Techline (1-800-828-6860 English or 1-800-503-3222 French) to obtain a VCI number. This will be required to allow access for specific VINs.

Part Number
Description

12615499
2006 Pontiac Solstice (2.4L) High Temp/Load Calibration

12615498
2006 Chevrolet Cobalt SS (2.4L) High Temp/Load Calibration

12619265*
2006 Chevrolet Cobalt SS (2.4L) High Temp/Load Diagnostic

12621650
2007 Pontiac Solstice (2.4L) High Temp/Load Calibration

12621652
2007 Chevrolet Cobalt SS/Pontiac G5 GT (2.4L) High Temp/Load Calibration

12621653**
2007 Chevrolet Cobalt SS/Pontiac G5 GT (2.4L) High Temp/Load Diagnostic

*Engine diagnostic calibration, P/N 12619265, is required when using calibration P/N 12615498.

**Engine diagnostic calibration, P/N 12621653, is required when using calibration P/N 12621652.


Warranty Information
This calibration will be regarded as a customer option and installed at the customer's expense.

Prior to using your vehicle for competitive driving, refer to your vehicle warranty book or your dealership for information on the GM New Vehicle Limited Warranty and how competitive driving may effect your warranty.

 

Yeah it is a Re-post Here is the other thread.
But I still want to know why the Ion and Sky's with the 2.4 LE5 an not included? Does not matter to me because I have HP but still.

 

+1... and wtf are they not doing it for the 2.2's for? bastards.

 

Yea, I THOUGHT it was posted once a while back but couldnt find it!
(I even posted in the old thread lol)
Thanks Red
Wop

 

What will this do for a daily driver??

 

Nothing, all this does is turn the fans on sooner to keep the temps down.

Not a promblem man.

 

It doesn't do poop for me but good looking out none the less.

 

What about the HHR

 

Hey Upongame Where did you get lighter pullys?

 

z-spec for my crank but i've heard bad things and good things about them so be warned, and for the alt pully off a member who makes them on chevyhhr.net _md_hhr you can also find him on the jbody forum

 

So this is a tune from GM? Has anyone gotten this?

So you have to then run synthetic which is fine but does it improve performance at all? Who gives a **** about fans coming on earlier if the performance is not increased.

 

well it would help if your planning on forced induction which increases the temp. so this is a good thing for the few with turbo's

but would it do anything for the rest of us??

 

uh yeah, if you hot lap anything..... or push your car hard, which is exactly what the description reads....

 

FYI.. running synthetic in the first place lowers your operating temp by 5-10 degrees...