1997-2000 C5's step inside
Thread Starter
Drifting
Joined: Apr 2000
Posts: 1,391
Likes: 4
From: St Louis MO
1997-2000 C5's step inside
What do your cars dyno and what do they run in the 1/4 stock (indicate trans and gears). The reason I am asking is that over in C4 General there is a L98 vs LT1 thread. It later twisted into a LT1 vs LS1 discussion when someone (a mod) said, and I quote, "LT1 Y-body > 97-00 LS1 Y-body", implying that LT1 C4's are faster and better performers than early C5's. When I called him on it someone else jumped in and said that a large portion of 97-00 LS1 are dogs and have significant problems delivering power and many, in fact, have less power than LT1s. I have never heard of this before. Anyway, I called 
and would like to know your #'s.
and would like to know your #'s.
Race Director
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
I think that my setup matched with that of the C4 with the same setup would not be able to beat me.
I am running a VORTEK Bottom Feeder Cold Air Intake, LS6 intake, shorty headers, with high flow cats, BORLA XR-1 racing system, and a few other things and run a solid 12.7 at a 109mph in the 1/4. Sure it isn't the best time, but this is on street tires. I have ran against a C4 with the LT4 setup and LTs and beat him by a .5 second in the 1/4. That is, the LT4 intake, not the cam.
Okay, I am probably opening a can of worms here, but I really think that the LS1 is a better motor...GM did name it the best motor they have ever designed.
Team Owner
Joined: May 2001
Posts: 36,836
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
1999 FRC:
Bone stock:
309.5 RWHP
322.4 RWTQ
Bolt ons only (no heads/cam, etc):
339.0 RWHP
343.8 RWTQ
Sorry no 1/4 times.
HTH
Bone stock:
309.5 RWHP
322.4 RWTQ
Bolt ons only (no heads/cam, etc):
339.0 RWHP
343.8 RWTQ
Sorry no 1/4 times.
HTH
Intermediate
Joined: Dec 2005
Posts: 45
Likes: 0
From: Cary NC
Most LS1s to about 305-310 RWHP stock, the ZO6s do 355ish (mine did 357).
C4s are great cars, but faster than an LS1, not on average. Maybe an LT4 M6 can whip an early LS1 A4 with the 2.73 axle ratio, but that would be about it.
C4s are great cars, but faster than an LS1, not on average. Maybe an LT4 M6 can whip an early LS1 A4 with the 2.73 axle ratio, but that would be about it.
Life Time NCM #2196
Joined: Sep 2004
Posts: 82,582
Likes: 1,692
From: Converse TX
Originally Posted by Lee Willis
Most LS1s to about 305-310 RWHP stock, the ZO6s do 355ish (mine did 357).
C4s are great cars, but faster than an LS1, not on average. Maybe an LT4 M6 can whip an early LS1 A4 with the 2.73 axle ratio, but that would be about it.
C4s are great cars, but faster than an LS1, not on average. Maybe an LT4 M6 can whip an early LS1 A4 with the 2.73 axle ratio, but that would be about it.
I owned an Fbody LT1 A4 and it was a dog until I put all the bolt ons and changed the gears to 4.10 and then this car woke up, however it could barley beat my stock LS1 that has 3.42 gears MN6 and dynoed 317 hp and 323 tq, oh I had Corsa and K&N as the only upgrades. My best quarter time was 13.09 dont remember the speed. So if you get either an Fbody or Vette with the 2.73 A4 it will be slugish like my LT1 was 
Dont have that problem no more run a blower for sick hp levels
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Tech Contributor
Joined: Oct 1999
Posts: 41,036
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From: Charlotte, NC (formerly Endicott, NY)
When the 97s first came out there were a fair number of C4 LT4 guys claiming they could beat any C5 since their engines actually put out more than 330 horse while the C5s original 345 horse engine put less than rated HP. After about a year when some of the cars actually started being raced on a regular basis that whole series of comments seemed to disappear.
Bill
Bill
Race Director
Joined: Nov 2001
Posts: 18,682
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St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12
Originally Posted by Bill Dearborn
When the 97s first came out there were a fair number of C4 LT4 guys claiming they could beat any C5 since their engines actually put out more than 330 horse while the C5s original 345 horse engine put less than rated HP. After about a year when some of the cars actually started being raced on a regular basis that whole series of comments seemed to disappear.
Bill
Bill
During AutoX events, I see a lot of loud C4s.... not fast 
Race Director
Joined: Mar 2003
Posts: 10,789
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From: Northern Illinois
Oldtimer
My 6-speed dynoed at right around 320 rwhp. I won't tell you what my times were the first time I ran at the track, but my 25 year old son claims I have a 13 second car with a 15 second driver. 
I haven't been to the track since I've done all my mods, but I'll probably let him drive it when I do go.
I haven't been to the track since I've done all my mods, but I'll probably let him drive it when I do go.
Last edited by DevilDog II; Jan 8, 2006 at 01:51 PM.
Melting Slicks
Joined: Feb 2004
Posts: 3,195
Likes: 2
From: ATL
St. Jude Donor '05-'06-'07-'08-'09-'10
2000 coupe. A4. 315.
No performance mods or tuning.
306.7 RWHP
308.6 RWTq
One chicken run down a drap strip with traction control engaged.
60' = 2.25
1/4 mile = 14.14 @ 102.43
No performance mods or tuning.
306.7 RWHP
308.6 RWTq
One chicken run down a drap strip with traction control engaged.
60' = 2.25
1/4 mile = 14.14 @ 102.43
Race Director
Joined: Mar 2003
Posts: 10,789
Likes: 894
From: Northern Illinois
Oldtimer
Originally Posted by Stickman81
One chicken run down a drap strip with traction control engaged.
60' = 2.25
1/4 mile = 14.14 @ 102.43
60' = 2.25
1/4 mile = 14.14 @ 102.43
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
I spent some time in the C4 forum about a year ago. Looking at threads and replying. The is a lot of BS going on between these guys comparing the C4 and C5 performance. So much that these folks believe their own BS. I stay out of those forums now. The bottom line is the C4 is a little over 100 lbs more in weight and 50 hp less hp. Plus they had somethnig like a 2.56 gear ratio. Go figure it out yourself
Melting Slicks
Joined: Feb 2004
Posts: 3,195
Likes: 2
From: ATL
St. Jude Donor '05-'06-'07-'08-'09-'10
Originally Posted by DevilDog II
I've got you beat! My first run on run flats and with traction control engaged was a 15.397 @101.66 mph. My 60' time was 3.286. Now that's truly pathetic! My best time that day was a 14.129 @ 104.21 mph. I know . . . Don't quit my day job.