Question about the LS1's
Safety Car
Joined: Jun 2003
Posts: 4,509
Likes: 240
From: Coconut Creek FL
Originally Posted by Feenix566
Is the difference between the 345hp/350tq LS1 and the 350hp/375tq LS1 noticable?
From the point of in the "seat of the pants" you mean? I have a 97 (ealry LS1 numbers above) and have driven the newer LS1 and really didn't notice anything (if anything the torque increase) 5 HP is not noticable.
The newer LS1 engines 01 and up used the LS6 intake and LS6 block with the same internals - the oil passages internal are different from old to new as well as the cams (with the exception of the 00' model that had a unique cam grind that year only)
Basically (and some will argue) that the cam grind and intake manifold are the reasons for the increase...I want to say they also changed the exhaust manifold design to a cast iron type as well...I read they did this because the early manifolds took too long to weld in production.
Drifting
Joined: Dec 2004
Posts: 1,706
Likes: 5
From: Toronto Ontario
In most track tests I've seen a read about, the 01-04 appears to be a couple of tenths faster in the 1/4 mile than the 97-00. One of the reasons I picked up an 01 is because of this. A well driven 6 speed might benefit from it moreso than the A4's. The A4's only went from 350 to 360 torque.
Race Director
Joined: Mar 2005
Posts: 14,440
Likes: 3
From: MD
St. Jude Donor '11
5hp is no big deal considering you can gain/loose 5hp with the weather/temperature. 25 lbs of torque is noticable. However, I hear the LS1 engine block is alot stronger in terms of modification capabilities.
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
Originally Posted by army2000
5hp is no big deal considering you can gain/loose 5hp with the weather/temperature. 25 lbs of torque is noticable. However, I hear the LS1 engine block is alot stronger in terms of modification capabilities.
you will notice more of a difference in torque going from an A4(stock) to a 6speed (stock) because of the Gearing difference, and less parastatic HP loss in the 6 speed vs the A4. But at the engine itself, very little noticiable difference.
Drifting
Joined: Dec 2004
Posts: 1,937
Likes: 1
From: Tempe Az
Originally Posted by Rob01C5
In most track tests I've seen a read about, the 01-04 appears to be a couple of tenths faster in the 1/4 mile than the 97-00. One of the reasons I picked up an 01 is because of this. A well driven 6 speed might benefit from it moreso than the A4's. The A4's only went from 350 to 360 torque.
The only reason the 01's+ are faster is because of the LS6 intake and better exhaust manifold's.
Picking up a 97 over a 01 leave's more mod money to easily erase the 01's .1-.2 tenth advantage
Burning Brakes
Joined: Oct 1999
Posts: 836
Likes: 0
From: Colorado Springs, Colo., USA
Originally Posted by Feenix566
Is the difference between the 345hp/350tq LS1 and the 350hp/375tq LS1 noticable?
Drifting
Joined: Dec 2004
Posts: 1,706
Likes: 5
From: Toronto Ontario
Originally Posted by BlownV6
The only reason the 01's+ are faster is because of the LS6 intake and better exhaust manifold's.
Picking up a 97 over a 01 leave's more mod money to easily erase the 01's .1-.2 tenth advantage
Picking up a 97 over a 01 leave's more mod money to easily erase the 01's .1-.2 tenth advantage
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Thread Starter
Racer
Joined: Feb 2002
Posts: 451
Likes: 1
From: Mount Laurel NJ
Originally Posted by BlownV6
The only reason the 01's+ are faster is because of the LS6 intake and better exhaust manifold's.
Picking up a 97 over a 01 leave's more mod money to easily erase the 01's .1-.2 tenth advantage
Picking up a 97 over a 01 leave's more mod money to easily erase the 01's .1-.2 tenth advantage
Drifting
Joined: Jan 2004
Posts: 1,987
Likes: 0
From: Orlando FL
Cruise-In VI Veteran
Honestly I don't see how some people never get bored of flying down that straight track over and over again, but to each his own. I just want a car that's fun to drive.
for me... its just a great place to go WOT without having to worry about cops!!
Safety Car
Joined: Jun 2003
Posts: 4,509
Likes: 240
From: Coconut Creek FL
Originally Posted by C5 KIDD
for many its a great way to test out the mods that have installed on their cars. its always fun to take a stock car, and monitor its progress as you add more mods.
for me... its just a great place to go WOT without having to worry about cops!!
for me... its just a great place to go WOT without having to worry about cops!!
and hang out with your buddies too boot! 
Drifting
Joined: Dec 2004
Posts: 1,706
Likes: 5
From: Toronto Ontario
Originally Posted by C5 KIDD
for many its a great way to test out the mods that have installed on their cars. its always fun to take a stock car, and monitor its progress as you add more mods.
for me... its just a great place to go WOT without having to worry about cops!!
for me... its just a great place to go WOT without having to worry about cops!!
Drifting
Joined: Oct 2003
Posts: 1,923
Likes: 5
From: San Antonio TX
Originally Posted by Feenix566
I'm not planning on modding my car. Been down that road before. Spent a lot of money and a lot of time and got almost zero results. I'm not a mechanic, nor am I inclined to learn to be one. I really don't care that much about quarter mile times, because I'm not planning on drag racing much. Honestly I don't see how some people never get bored of flying down that straight track over and over again, but to each his own. I just want a car that's fun to drive.
IMO the above makes the car a LOT more fun to drive.
More Than Zero
Drifting
Joined: Dec 2004
Posts: 1,937
Likes: 1
From: Tempe Az
Originally Posted by Rob01C5
I know 2001 's had a few upgrades (second gen AH for one), but if the 01's and up are faster simply because of the intake and exhaust manifolds, then why should the torque output between the A4's and the M6's be different by 15 lbft? I can't see the tranmission in the A4 robbing just thoses 2 things to that extent.
After 98 Gm started screwing around with the cam specs of the LS1. In 01 Gm went with the LQ9 truck cam to better enhance low end torque.
Numbers don't lie. I pulled a 13.3 at 106 bone stock with my 97. She dyno'd 294rwhp, 307rwtq a week before that 1/4th run.