What did they do different?
Race Director
Joined: Nov 2003
Posts: 12,346
Likes: 5
From: Mustang OK
The model year 2001 5 Hp increase on the LS1 was mainly due to the newly designed composite intake manifold and the low end torque increase from modifications to the cam shaft:
Model Year 2001 Press Release - More Performance...
Model Year 2001 Press Release - More Performance...
Last edited by GrayC5; Nov 20, 2005 at 01:09 AM. Reason: typing/spelling.
Racer
Joined: Jun 2002
Posts: 302
Likes: 1
From: Iowa
Many changes for 2001... here are some highlights:
return to 28# injectors for all models
85MM MAF with integral temp sensor (versus 74mm with separate plug for IAT)
LS1 cam profile changed to: .500/0.500, 198/208 on 115.5LSA (From:
0.472/0.479, 202/210 on 117)
All Corvettes now have the LS6 intake manifold
All Corvettes now have the LS6 engine block which includes a beefier oil pump
LS1 changes result in new output of 350 HP @ 5200 RPM and 375 Ft Lbs of torque @ 4400 RPM (MN6)
Pup cats added to all models
Stronger synchros in all transmissions
Exhaust manifolds revised (5hp regained) - thin wall cast replacing SS
manifolds
Torque Tube changed from metal-matrix composite to aluminum alloy 6061, increased in dia from 55 to 63 mm.
Driveshaft couplings have also been upgraded on manual-equipped models for additional strength and durability
Indeed, it was a good year!!
return to 28# injectors for all models
85MM MAF with integral temp sensor (versus 74mm with separate plug for IAT)
LS1 cam profile changed to: .500/0.500, 198/208 on 115.5LSA (From:
0.472/0.479, 202/210 on 117)
All Corvettes now have the LS6 intake manifold
All Corvettes now have the LS6 engine block which includes a beefier oil pump
LS1 changes result in new output of 350 HP @ 5200 RPM and 375 Ft Lbs of torque @ 4400 RPM (MN6)
Pup cats added to all models
Stronger synchros in all transmissions
Exhaust manifolds revised (5hp regained) - thin wall cast replacing SS
manifolds
Torque Tube changed from metal-matrix composite to aluminum alloy 6061, increased in dia from 55 to 63 mm.
Driveshaft couplings have also been upgraded on manual-equipped models for additional strength and durability
Indeed, it was a good year!!
Le Mans Master
Joined: Oct 2002
Posts: 6,772
Likes: 1
From: Tampa FL
Originally Posted by GrayC5
The model year 2001 5 Hp increase on the LS1 was mainly due to the newly designed composite intake manifold and the low end torque increase from modifications to the cam shaft:
Model Year 2001 Press Release - More Performance...
Model Year 2001 Press Release - More Performance...
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Race Director
Joined: Jul 2005
Posts: 11,308
Likes: 1
From: The Beautiful Greater Bay Area California
Originally Posted by 01QuickSilver
Many changes for 2001... here are some highlights:
return to 28# injectors for all models
85MM MAF with integral temp sensor (versus 74mm with separate plug for IAT)
LS1 cam profile changed to: .500/0.500, 198/208 on 115.5LSA (From:
0.472/0.479, 202/210 on 117)
All Corvettes now have the LS6 intake manifold
All Corvettes now have the LS6 engine block which includes a beefier oil pump
LS1 changes result in new output of 350 HP @ 5200 RPM and 375 Ft Lbs of torque @ 4400 RPM (MN6)
Pup cats added to all models
Stronger synchros in all transmissions
Exhaust manifolds revised (5hp regained) - thin wall cast replacing SS
manifolds
Torque Tube changed from metal-matrix composite to aluminum alloy 6061, increased in dia from 55 to 63 mm.
Driveshaft couplings have also been upgraded on manual-equipped models for additional strength and durability
Indeed, it was a good year!!
return to 28# injectors for all models
85MM MAF with integral temp sensor (versus 74mm with separate plug for IAT)
LS1 cam profile changed to: .500/0.500, 198/208 on 115.5LSA (From:
0.472/0.479, 202/210 on 117)
All Corvettes now have the LS6 intake manifold
All Corvettes now have the LS6 engine block which includes a beefier oil pump
LS1 changes result in new output of 350 HP @ 5200 RPM and 375 Ft Lbs of torque @ 4400 RPM (MN6)
Pup cats added to all models
Stronger synchros in all transmissions
Exhaust manifolds revised (5hp regained) - thin wall cast replacing SS
manifolds
Torque Tube changed from metal-matrix composite to aluminum alloy 6061, increased in dia from 55 to 63 mm.
Driveshaft couplings have also been upgraded on manual-equipped models for additional strength and durability
Indeed, it was a good year!!
Bingo. 