98 or 99
and what he said 
also different fuel rails and i am sure something else but not sure 
Drifting
Joined: Feb 2003
Posts: 1,761
Likes: 235
From: North Carolina
Outside don't believe any changes were made, the fixed roof coupe FRC might have been intro'd in 99
Here's a link that might help.
http://www.corvetteactioncenter.com/specs/c5/
Last edited by MAC5; Nov 5, 2010 at 08:48 PM.
Melting Slicks
Joined: Mar 2002
Posts: 2,203
Likes: 63
From: Staten Island NY
FYI-
From the East Coast Supercharging website:
Did you know that the PCM used in your 1997 or 1998 Corvette is extremely slow and inconsistent compared to the PCM in a 1999-2004 Corvette?
This becomes a bigger problem as you add mods and increase horsepower substantially. We have found that the early model LS1 PCM simply cannot keep up with the rate of engine climb on bigger horsepower cars. Computer glitches and inconsistencies surface during tuning that simply cannot be resolved, even with the most advanced modern tuning software.
Something i didnt know about until I went there for tune recently.
From the East Coast Supercharging website:
Did you know that the PCM used in your 1997 or 1998 Corvette is extremely slow and inconsistent compared to the PCM in a 1999-2004 Corvette?
This becomes a bigger problem as you add mods and increase horsepower substantially. We have found that the early model LS1 PCM simply cannot keep up with the rate of engine climb on bigger horsepower cars. Computer glitches and inconsistencies surface during tuning that simply cannot be resolved, even with the most advanced modern tuning software.
Something i didnt know about until I went there for tune recently.
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The '98 did not have the HUD as an option - it did not go into a production car until the '99 model year.
For '99:
• 26# injectors substituted for 28#
• Fuel pump revised to reduce noise
• FRC "Fixed Roof Coupe" aka the hardtop, becomes available. All FRC's are MN6 (6-speed) cars with the Z51 suspension package, and are about 60lbs lighter than coupes.
• HUD introduced
• Only one line in driver's side fuel rail cover (no fuel return line)
• Power telescoping wheel becomes an option
• Steering hardware changed to combat wandering
• Door sill trim plates added
Also, a next generation air bag system was added which deployed with less force than the prior system.
For '99:
• 26# injectors substituted for 28#
• Fuel pump revised to reduce noise
• FRC "Fixed Roof Coupe" aka the hardtop, becomes available. All FRC's are MN6 (6-speed) cars with the Z51 suspension package, and are about 60lbs lighter than coupes.
• HUD introduced
• Only one line in driver's side fuel rail cover (no fuel return line)
• Power telescoping wheel becomes an option
• Steering hardware changed to combat wandering
• Door sill trim plates added
Also, a next generation air bag system was added which deployed with less force than the prior system.
Life Time NCM #2196
Joined: Sep 2004
Posts: 82,597
Likes: 1,712
From: Converse TX
The '98 did not have the HUD as an option - it did not go into a production car until the '99 model year.
For '99:
• 26# injectors substituted for 28#
• Fuel pump revised to reduce noise
• FRC "Fixed Roof Coupe" aka the hardtop, becomes available. All FRC's are MN6 (6-speed) cars with the Z51 suspension package, and are about 60lbs lighter than coupes.
• HUD introduced
• Only one line in driver's side fuel rail cover (no fuel return line)
• Power telescoping wheel becomes an option
• Steering hardware changed to combat wandering
• Door sill trim plates added
Also, a next generation air bag system was added which deployed with less force than the prior system.
For '99:
• 26# injectors substituted for 28#
• Fuel pump revised to reduce noise
• FRC "Fixed Roof Coupe" aka the hardtop, becomes available. All FRC's are MN6 (6-speed) cars with the Z51 suspension package, and are about 60lbs lighter than coupes.
• HUD introduced
• Only one line in driver's side fuel rail cover (no fuel return line)
• Power telescoping wheel becomes an option
• Steering hardware changed to combat wandering
• Door sill trim plates added
Also, a next generation air bag system was added which deployed with less force than the prior system.
