2.2L L61 Performance Tech 16 valve 145 hp EcoTec with 155 lb-ft of torque

programable ecu?

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Old 08-19-2005, 10:18 AM
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Angry

I live in Germany, and have full run of the Autobahns, and my base coupe stops at like 108 and i have been dying to know how to fix it. i am tired of getting passed like i'm stopped at 100 by old beemers. lemme know if you hear anything promising.
Old 08-19-2005, 10:39 AM
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The tire rating makes sense, but I now have 17" wheels with 200+ zr rated tires, I WANNA GO FASTER DAMNIT. I'm on the highway all day, rt70 through PA and traffic is ALWAYS going 100+, then there's me in the slow lane hitting off the limiter
Old 08-19-2005, 03:06 PM
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Originally Posted by TimDang
The tire rating makes sense, but I now have 17" wheels with 200+ zr rated tires, I WANNA GO FASTER DAMNIT. I'm on the highway all day, rt70 through PA and traffic is ALWAYS going 100+, then there's me in the slow lane hitting off the limiter

i think you can get it reflashed by the dealer, but it may affect your warranty
Old 08-29-2005, 02:04 PM
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I was on the RSM Racing website and I couldn't find anything about a Reflash for the 2.2L ECU.
Old 08-29-2005, 02:53 PM
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Originally Posted by TimDang
The tire rating makes sense, but I now have 17" wheels with 200+ zr rated tires, I WANNA GO FASTER DAMNIT. I'm on the highway all day, rt70 through PA and traffic is ALWAYS going 100+, then there's me in the slow lane hitting off the limiter
Axle shafts were the weak link on the J-Body once we had the speed limiter removed. I believe the rating was 120-130MPH. I do not yet have data on the Cobalt Axles, but it will probably be similar. Any GM drivetraine engineers want to chime in?

Jim
Old 08-29-2005, 04:27 PM
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The dealer WILL NOT, and IS NOT ALLOWED to reflash your ECM to raise the speed limiter.
Old 11-20-2005, 02:50 AM
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.. So why does my LS coupe top out at 124.5?? This is kinda interesting... ...not to revive an old post or anything :-)
Old 11-20-2005, 11:28 AM
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The speed limiter is an adjustable variable in your cars computer. And yes, it is set based on your tires. If you want to increase your speed limiter, it can be done, but you need to get a hold of a diagnostic servicing computer and someone that will plug it in and do it for you. It's not hard, but before now, I thought you could just go to your dealer, show them the new tires, and they would do it. But Maven would know better then I would, so now I guess you would have to make friends with your mechanic and do it after hours or something....
Old 11-20-2005, 10:22 PM
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http://www.stylinconcepts.com/parts....tfamilyid=1540

well it isnt cheap but it will work for all of you who want to change the peramiters of your cobalt ECU including revlimit, speedlimiter, and tire size!
Old 11-20-2005, 11:21 PM
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The Hyperpac doesn't work with the Cobalt. I wish it did, it would be handy.
Old 11-20-2005, 11:49 PM
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Originally Posted by halfcent
The Hyperpac doesn't work with the Cobalt. I wish it did, it would be handy.
i know that site says they dont have one but i have seen one before that says it is for the cobalt i will keep searching for it!
Old 11-21-2005, 12:23 AM
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Originally Posted by Taro
I think i maybe be able to shed some light on the differences. First lets start with the US. limiters are based on tire rating, so if the LS has the 16" wheels it will have a higher limiter then the base wheels. In canada we just dont have limiters.
AFAIK Canadian cars use the exact same US Federal calibration.
Therefore Canadian cars are limited based on tire equipment exactly as the US cars.
Originally Posted by halfcent
The speed limiter is an adjustable variable in your cars computer. And yes, it is set based on your tires. If you want to increase your speed limiter, it can be done, but you need to get a hold of a diagnostic servicing computer and someone that will plug it in and do it for you.
This is not something that is adjustable even at the dealership level. Generally you cannot get a "custom" calibration, for tire size (like you can for some LD trucks) or tire equipment unless it was a regular production option for that exact car and trim level. You might be able to "fool" the system however and use a VIN from another car with a higher performing tire, but it would of course have to have the same PCM/ECM (L61,LE5 and LSJ are all different) and must have identical transmission and optional equipment. So while it wouldnt be prudent to say "cannot be done" that would be true for all intents and purposes.
HTH
WopOnTour
Old 11-21-2005, 12:50 AM
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my 5 speed ls has done 120 with no trouble
Old 11-22-2005, 01:44 PM
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my 4 speed auto has done 120 no trouble also. it couldn't go much faster though cause I ran outta gear

As you can see....

Old 11-22-2005, 02:01 PM
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Originally Posted by wikkymaster
yep my base cuts out at 105 which is alright since NOBODY needs to be going that fast anyways!
YOU SIR ARE A LIER









Old 11-22-2005, 02:02 PM
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I don't care what anyone says, there's no reason for anyone to go that fast.
Old 11-22-2005, 02:12 PM
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Originally Posted by wikkymaster
yep my base cuts out at 105 which is alright since NOBODY needs to be going that fast anyways!
hopefully with slight modifications I hope to be faster then theat in the 1/4 mile at the track. So NOBODY..... is way too broad. How About nobody needs to go that fast ON THE STREET
Old 11-22-2005, 02:13 PM
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Originally Posted by saturnd00d
I don't care what anyone says, there's no reason for anyone to go that fast.
you too sir should read the above post
Old 11-22-2005, 02:18 PM
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The guy with the pic isn't at the track, but rather, on the streets. He's going too fast period. Also, if your going to goto the track to go that fast, chances are your not going to depend on your stock ECU. Many people have an independent ECU to control many of those variables, such as fuel, timing, spark, and variables controlling trap speed. Much so, a different application than your standard cobalt going that fast on a highway or street.
Old 11-22-2005, 02:23 PM
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Here is the link for a Pre-Release purchase of the HyperPac for 2003 - 2005 GM Cars

HyperPac Presale, from Martel Brothers

They are nice but not so much that I'd spend like $800 on it. My dad had bought one off of Ebay for his truck for like $375 and it is really cool.
Old 11-22-2005, 02:29 PM
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nice but too much
Old 11-22-2005, 06:45 PM
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Originally Posted by saturnd00d
The guy with the pic isn't at the track, but rather, on the streets. He's going too fast period. Also, if your going to goto the track to go that fast, chances are your not going to depend on your stock ECU. Many people have an independent ECU to control many of those variables, such as fuel, timing, spark, and variables controlling trap speed. Much so, a different application than your standard cobalt going that fast on a highway or street.

I agree, I made that picture to prove that cobalts can go that fast, but I did it in a controlled condition, with spotters and on a closed road. I would never go that fast just for the hell of it, theres no point. Plus it wastes gas.
Old 11-22-2005, 08:09 PM
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Originally Posted by mlcroy20
Here is the link for a Pre-Release purchase of the HyperPac for 2003 - 2005 GM Cars

HyperPac Presale, from Martel Brothers

They are nice but not so much that I'd spend like $800 on it. My dad had bought one off of Ebay for his truck for like $375 and it is really cool.
Very doubtful this will work for the Cobalts.The Hypertech web-site makes NO REFERENCE to having a HyperPac model that will function with the newer generation modules like the ones used in the Cobalts. I certainly wouldnt send them any $$ until they divulge which ECM/PCM models they are developing this for...
Regards
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Old 11-23-2005, 12:19 AM
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I inquired about this product with Hypertech. Here was their reply:

As of now we have the Hyperpac for the Dodge Hemi and the new 5.4 3 valve Ford engine. Other applications are soon to come. Send me the engine size in you Cobalt and a phone number and I'll enter a request so you'll be notified when available. Thanks


Jim
Old 11-24-2005, 03:45 AM
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you can say i shouldnt go that fast, but oh well. if my cobalt wont do it, ill get in my 150+ mph saab 9000 turbo and do it. know i died happy. Point was that i wanted it erased. my balt is my next project, and at one point it will go 150+. Oh and already talked to shop round here about flashing it. can be done, but they send it off. which means your car is sidelined for a few days


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