2.0L LNF Performance Tech 260hp and 260 lb-ft of torque Turbocharged tuner version.

Wanting proof of the 260hp limit

Thread Tools
 
Search this Thread
 
Old Jul 25, 2008 | 09:38 AM
  #26  
firemanfrank's Avatar
Senior Member
 
Joined: 05-27-07
Posts: 1,547
Likes: 0
From: USA
Originally Posted by SynapseTurbo
this ecu definately does its job on limiting torque it seems. we have actually seen numbers over 280ft lbs when we first changes some parts. but the ECU adapted quickly and seemed to sit comfortably at 260 ftlbs on our dyno ...
The more I read about the 08's ECU, the more I like my 07 SC ...
Reply
Old Jul 25, 2008 | 09:42 AM
  #27  
DaREDss's Avatar
Senior Member
 
Joined: 10-31-06
Posts: 2,251
Likes: 0
From: O-town
Originally Posted by TheLaxPlayer
There's nothing wrong with the clutch, people just can't drive.
I second that 40k miles of abuse and teaching people to drive stick and mine has never slipped... and im stage 2 ++
Reply
Old Jul 25, 2008 | 09:47 AM
  #28  
OrngBalt's Avatar
Senior Member
 
Joined: 05-10-07
Posts: 5,890
Likes: 1
From: West Babylon, NY
Originally Posted by firemanfrank
The more I read about the 08's ECU, the more I like my 07 SC ...
until next year when HP tuners cracks this and all the sudden with minimal effort you are seeing 300's..


You got SC's over 300 already.... you will see TC's over 400


and if we give it to Rod (victoryred) i betcha he will get 2000
Reply
Old Jul 25, 2008 | 11:04 AM
  #29  
SSpdDmon's Avatar
Member
 
Joined: 07-09-08
Posts: 356
Likes: 0
From: Farmington, MI
Originally Posted by msatchmo
hey michigan people, send me a PM and let me know when you guys go cruisin. I'm near Gratiot/Woodward
MI people should check out Motown Muscle.

www.motownmuscle.com/forums

We're a decent sized club with a ton of members/non-members on our message board. You may have seen us on Pinks last year when we won MI Speed's LS1 powered foxbody.
Reply
Old Jul 25, 2008 | 05:46 PM
  #30  
MapOfTaziFoSho's Avatar
Senior Member
 
Joined: 06-11-08
Posts: 1,125
Likes: 1
From: The Mogadishu of the Midwest
Thumbs down

Originally Posted by SSpdDmon
MI people should check out Motown Muscle.

www.motownmuscle.com/forums

We're a decent sized club with a ton of members/non-members on our message board. You may have seen us on Pinks last year when we won MI Speed's LS1 powered foxbody.
I've been lurking there for years...but my user name won't let me post and there are no mods worth a damn willing to assist me.

I have this same handle on every board for damn 7 years....
Reply
Old Jul 25, 2008 | 09:28 PM
  #31  
Black2point4's Avatar
Thread Starter
New Member
 
Joined: 02-08-06
Posts: 15
Likes: 0
From: Cary, NC
Thanks for the answers ppl. I hope Hp tuners can break it soon.
Reply
Old Jul 26, 2008 | 02:48 AM
  #32  
hungryhip-ccp's Avatar
Senior Member
iTrader: (2)
 
Joined: 05-31-07
Posts: 4,339
Likes: 0
From: SoCal, Lancaster
Originally Posted by TheLaxPlayer
Umm.. yeah... you'll notice not even stage 3 makes anywhere near 300.

You can apparently build a 1000rwhp cobalt as well.. should GM make a clutch for that? The stock one is fine with all the GM parts, even if you add the 50 shot to the stage 3.



hmmm last time i checked it made 260hp and (well since they dont say i'll give you the benifit of the doubt) 235+trq add a 50 shot that actually adds 50hp and 65trq well if i do my math that = 310hp and 300trq factor in a 12% fwd drivetrain loss and your uhh still very near 300....

try again... the stock clutch blows once you have 2.8 or less and full bolt ons... get there then lets talk...



ohh and let me add some hard evedince with that post...

(if i still had my dyno sheet uploaded ide show you mine)


https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/cbodnars-307whp-nitrous-cobalt-123414/

Last edited by hungryhip-ccp; Jul 26, 2008 at 04:21 AM.
Reply
Old Jul 26, 2008 | 11:54 AM
  #33  
batboy's Avatar
Senior Member
iTrader: (1)
 
Joined: 06-30-08
Posts: 719
Likes: 1
From: Kansas
Originally Posted by SynapseTurbo
nitrous would not affect airflow readings because nitrous is injected after the MAF sensor.
Well, what if you run a dry nitrous system which is injected before the MAF?
Reply
Old Jul 26, 2008 | 12:15 PM
  #34  
FrankTheTank's Avatar
Member
 
Joined: 06-06-08
Posts: 285
Likes: 0
From: south east michigan
Originally Posted by MapOfTaziFoSho
Krispy and gettinausername ...lets get lunch sometime!

Malones?
where's Malones?
Reply
Old Jul 26, 2008 | 12:44 PM
  #35  
MapOfTaziFoSho's Avatar
Senior Member
 
Joined: 06-11-08
Posts: 1,125
Likes: 1
From: The Mogadishu of the Midwest
Originally Posted by FrankTheTank
where's Malones?
It's in Warren, on Van Dyke about 1 mile North of the Tech Center.
Reply
Old Jul 26, 2008 | 01:03 PM
  #36  
Maxim_X's Avatar
Senior Member
 
Joined: 10-14-06
Posts: 2,318
Likes: 2
From: New Bedford, MA
Originally Posted by theneelster
That would work if they actually had a history of releasing performance upgrades that are worth a **** for GM cars...

2.0's are still waiting for that upgraded gmpp clutch...
The GMPP clutch being tested right now, by me. It works perfect. It's going to be targeted towards the LNF but it will fit a LSJ.
Reply
Old Jul 26, 2008 | 01:13 PM
  #37  
KillerBee's Avatar
Senior Member
 
Joined: 03-23-07
Posts: 14,118
Likes: 0
From: Michigan
damn thats the most Michigan people i seen in one thread in a long time
Reply
Old Jul 26, 2008 | 01:19 PM
  #38  
mkulrey13's Avatar
Banned
iTrader: (39)
 
Joined: 08-30-05
Posts: 18,509
Likes: 5
From: New Hampshire
Originally Posted by theneelster
That would work if they actually had a history of releasing performance upgrades that are worth a **** for GM cars...

2.0's are still waiting for that upgraded gmpp clutch...
Ive seen it, local guy said its really nice.
Reply
Old Jul 26, 2008 | 02:25 PM
  #39  
SSpdDmon's Avatar
Member
 
Joined: 07-09-08
Posts: 356
Likes: 0
From: Farmington, MI
Originally Posted by MapOfTaziFoSho
I've been lurking there for years...but my user name won't let me post and there are no mods worth a damn willing to assist me.

I have this same handle on every board for damn 7 years....
I'm friends with the mods over there. Shoot me a PM with your e-mail & username. We'll get you straightened out.

The only reason why I can think you'd have problems posting is if you're trying to do it in the For Sale section without posting a few other places first (like the Pub). We have a hard time trying to get people to realize that our site is not a substitute for eBay and Craigslist, so some restrictions are placed on newbs. We are a car club with a forum first and foremost.
Reply
Old Jul 27, 2008 | 02:47 PM
  #40  
tomc3's Avatar
New Member
 
Joined: 07-27-08
Posts: 2
Likes: 0
From: texas
my guess....tranmission!

From GM Inside news transmission guide for F35:

Max Gearbox Torque: 258 lb.-ft.

http://www.gminsidenews.com/index.php?page=trans_guide

limit torque, no trans breakage....

I wonder if the F40 would fit??
Reply
Old Jul 28, 2008 | 09:47 AM
  #41  
SynapseTurbo's Avatar
Member
 
Joined: 06-12-08
Posts: 276
Likes: 0
From: Albany, NY
wierd our transmission didnt break when we saw 280ft lbs.....i wouldnt get so cought up in those ratings.
Reply
Old Jul 28, 2008 | 09:52 AM
  #42  
Gettinausernamesucks's Avatar
New Member
 
Joined: 05-07-08
Posts: 188
Likes: 1
From: Michigan
The torque limits you see on the transmissions is a 100 thousand mile rating for expected life. (Given your not wheel hopping the car and abusing it)We've shoveled 350FT LBS through an F23 with a V6 but they don't last very long.
Reply
Old Jul 28, 2008 | 09:54 AM
  #43  
SynapseTurbo's Avatar
Member
 
Joined: 06-12-08
Posts: 276
Likes: 0
From: Albany, NY
exactly. wheel hop, drivetrain shock, and abusive driving style are often the cause of transmission failures and not actual power.
Reply
Old Jul 28, 2008 | 11:10 AM
  #44  
Gettinausernamesucks's Avatar
New Member
 
Joined: 05-07-08
Posts: 188
Likes: 1
From: Michigan
Unfortunatly the older cars (ie supercharged) had considerably smaller axles that caused wheel hop because they torsionally wound up when shocked by a clutch dump at high RPM. The TC cars have very large axles to mitigate the torsional wind up which pretty much eliminated wheel hop. We've done this on some of the bigger cars now and in some cases the axles are two different diameters (AKA ZR1 and New CTSV) to create torsional cancelling between the two axles to kill wheel hop.
Reply
Old Jul 28, 2008 | 11:13 AM
  #45  
an0malous's Avatar
Senior Member
 
Joined: 06-28-06
Posts: 12,577
Likes: 2
From: Canada
hmmm gonna have to disagree there chief.
the ss/sc wheelhop is not from axles.
if it was, then driveshaft shops beefy ass axles would have solved the problem long ago.
and things like motor mounts, cabs, tq dampers, would have done diddly squat
Reply
Old Jul 28, 2008 | 11:14 AM
  #46  
MapOfTaziFoSho's Avatar
Senior Member
 
Joined: 06-11-08
Posts: 1,125
Likes: 1
From: The Mogadishu of the Midwest
Originally Posted by Gettinausernamesucks
Unfortunatly the older cars (ie supercharged) had considerably smaller axles that caused wheel hop because they torsionally wound up when shocked by a clutch dump at high RPM. The TC cars have very large axles to mitigate the torsional wind up which pretty much eliminated wheel hop. We've done this on some of the bigger cars now and in some cases the axles are two different diameters (AKA ZR1 and New CTSV) to create torsional cancelling between the two axles to kill wheel hop.
Yeah, I couldn't believe the size of the axles in the SS/TC...def a selling point for me!

Originally Posted by an0malous
hmmm gonna have to disagree there chief.
the ss/sc wheelhop is not from axles.
if it was, then driveshaft shops beefy ass axles would have solved the problem long ago.
and things like motor mounts, cabs, tq dampers, would have done diddly squat
I hate to **** all over you...but the guy you're chief-ing works for GM...

Besides...we all know calling someone chief is a hostile statement...no matter the context...

Last edited by MapOfTaziFoSho; Jul 28, 2008 at 11:28 AM. Reason: Automerged Doublepost
Reply
Old Jul 28, 2008 | 11:30 AM
  #47  
Gettinausernamesucks's Avatar
New Member
 
Joined: 05-07-08
Posts: 188
Likes: 1
From: Michigan
Thats ok he can believe what he wants. I know what we did and why we did it.

Though I am curious since you say it's not the axles then it would appear that you have an answer as to why they have wheel hop. Since your sure its not the axles then what is it?
Reply
Old Jul 28, 2008 | 11:41 AM
  #48  
Area47's Avatar
Rent me! per hour
 
Joined: 03-22-07
Posts: 24,161
Likes: 20
From: Still fixing others mistakes.
there is more to it than just axles. don't even try and blame this one on something that has little to do with it.
Reply
Old Jul 28, 2008 | 11:51 AM
  #49  
krispy's Avatar
Senior Member
 
Joined: 03-26-08
Posts: 3,420
Likes: 3
From: Somewhere, MI
the great thing is everyone is correct here!

break it down to a free body diagram, you will see that every thing mentioned matters
Reply
Old Jul 28, 2008 | 11:56 AM
  #50  
Gettinausernamesucks's Avatar
New Member
 
Joined: 05-07-08
Posts: 188
Likes: 1
From: Michigan
Look all I can say is in the SS turbo the axle diameters were increased significantly and the torsional rigidity was increased some 45% to address axle windup. Thats not my opinion thats the fact.

I'm not saying that the axles are the total solution but they are 80% of it.(which is more than little to do with it) Strut valving spring rate and bushing durometers in the suspension also add to the issue but they are not the main concern. The suspension geometry did not change between the SSTC and the SSSC

Last edited by Gettinausernamesucks; Jul 28, 2008 at 11:57 AM. Reason: Automerged Doublepost
Reply



All times are GMT -4. The time now is 02:59 AM.