Top speed
Thread Starter
8th Gear
Joined: Sep 2002
Posts: 8
Likes: 0
From: Centreville VA
Top speed
Hey everyone, was just wondering if anyone happened to know about what the top speed is on the different C4 and C5 corvettes.
L98, LT1, ZR1, ZO6, LS1... etc. Thanks for any help. :cheers:
L98, LT1, ZR1, ZO6, LS1... etc. Thanks for any help. :cheers:
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Going from memory....
L83 : Not sure
L98 : 150-154 depending on year.
LT1 : 165-170 depending on tranny/gears.
LT4 : 175 I think
LT5 : 180-185
LS1 : 177 for 6-speed
LS6 : 172, runs outta gear & aerodynamics
L83 : Not sure
L98 : 150-154 depending on year.
LT1 : 165-170 depending on tranny/gears.
LT4 : 175 I think
LT5 : 180-185
LS1 : 177 for 6-speed
LS6 : 172, runs outta gear & aerodynamics
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
What did the 3.54s come on then? Was it part of Z51? As far as I knew 3.33 was the only 6-speed ratio for that year and then when ZR1 came out 3.54s were dropped in. Or did the 3.54s show up late in production?
Drifting
Joined: Aug 2002
Posts: 1,451
Likes: 0
From: Calgary AB
Re: (scorp508)
Unfortunately I'm the second owner, so I can't tell you whether it was part of a package or not. I can tell you it was option coded as GH0. Mine was built in Oct of '88, so I don't think it was late in the production cycle, but I could be wrong. I'm not sure about when the cycles started / ended.
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Le Mans Master
Joined: Dec 1999
Posts: 8,540
Likes: 1
From: And on the fifth day, subpoenas were served to Obama senior staff
Re: (Silver89)
No 3.31 in 89. Not sure I've ever heard of a 3.31 in a C4.
Hand written note in the 1989 restoration package from GM
Dated Jan 10, 1989
Know also that the 3.33 was standard for the 6 speed at least part of the way through 90 and probably further.
RPO for 3.33 is GT7 and is not listed in the 89 service manual, it comes with RPO G87 8.50" ring gear.
The 3.54 is RPO GHO, do you have GHO?
Pete
Hand written note in the 1989 restoration package from GM
Dated Jan 10, 1989
Update concerning Standard Axle Ratio for 1989 corvettes:
All 1989 corvettes produced prior to (approx) Feb 6, 1989 with the Six (6) speed manual transmission will have a 3.54 Axle Ratio. All a989 Six Speed Manual corvettes produced after Feb 6, 1989 will have a 3.33 Standard Axle Ratio.
F.Y.I. only - THE 3.54 Axle Ratio will Be Standard on ZR1's
All 1989 corvettes produced prior to (approx) Feb 6, 1989 with the Six (6) speed manual transmission will have a 3.54 Axle Ratio. All a989 Six Speed Manual corvettes produced after Feb 6, 1989 will have a 3.33 Standard Axle Ratio.
F.Y.I. only - THE 3.54 Axle Ratio will Be Standard on ZR1's
RPO for 3.33 is GT7 and is not listed in the 89 service manual, it comes with RPO G87 8.50" ring gear.
The 3.54 is RPO GHO, do you have GHO?
Pete
Le Mans Master
Joined: Dec 1999
Posts: 8,540
Likes: 1
From: And on the fifth day, subpoenas were served to Obama senior staff
Re: (Silver89)
Yeah, I know the 3.31 is in the manual as RPO GW4, just never heard of anyone that had one?
You are the first GHO I have heard documented, glad to see the resto-pack seems to be correct!
Pete
You are the first GHO I have heard documented, glad to see the resto-pack seems to be correct!
Pete