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1998 C5 Dyno Numbers

This is a discussion on 1998 C5 Dyno Numbers within the Corvette forums, part of the Vehicle Specific category; Took my '98 vette up to Vincennes, Indiana for a dyno day at Vincennes University Saturday. Good day with temps ...

  1. #1
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    1998 Corvette

    1998 C5 Dyno Numbers

    Took my '98 vette up to Vincennes, Indiana for a dyno day at Vincennes University Saturday.

    Good day with temps around 50 degrees and no humidity.

    I have a '98 with 6 speed.

    Vararam intake and cat back slp loudmouth exhaust are the only mods. I did just replace the plugs with some ngk iridiums and replaced the wires with some Magnecore 10.5's.

    Dyno'ed 330whp and 345 torque.

    The car has 88,000 miles on it. I was pleased and getting a baseline was the only goal before heads and cam in the Spring.

    Steve B.

  2. #2
    Member WS6SP33D's Avatar
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    Red w/ silver Stripes
    2000 WS6 6 Speed

    Nice numbers Congrats. It's always good to get a baseline before to modding begins What are your plans for heads and cam?

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    Quote Originally Posted by WS6SP33D View Post
    Nice numbers Congrats. It's always good to get a baseline before to modding begins What are your plans for heads and cam?
    I'm looking for about 425-440whp, so I'll be going with what ever combo seems to be getting other ls1's close to this. I want to keep it tame enough that the Mrs still enjoys driving it, but quick enough for the occasional trip to the track.

    Steve B.

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    Member WS6SP33D's Avatar
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    Red w/ silver Stripes
    2000 WS6 6 Speed

    Quote Originally Posted by Steven Burgess View Post
    I'm looking for about 425-440whp, so I'll be going with what ever combo seems to be getting other ls1's close to this. I want to keep it tame enough that the Mrs still enjoys driving it, but quick enough for the occasional trip to the track.

    Steve B.
    My last car i was running a set of 243's i sent to AI along with a g5x3 and full bolt-ons with and LS6 intake and 30lb injectors (same plans for this car) and it dyno'd at 433. Im hoping for the same numbers again or maybe a tad bit more with a bigger or ported tb. Good luck man

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    Thanks.

    Steve B.

  6. #6
    Senior Member Danger731's Avatar
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    My vette dyno'd 299 bone stock. Good gains.

  7. #7
    Senior Member Danger731's Avatar
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    Now that im out of Cali I may do LT's and a cutout on the vette.
    04 C5 A4 Torch Red

    2009 CTS4 Ice Black

    2013 1500 Silverado Z71

    02 Z/28 M6 Onyx Black All Options - Sold

  8. #8
    Corvette Moderator BlownC5's Avatar
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    Velocity Yellow
    2006 E-Force blown Z06

    Those are strong numbers. Have fun!

  9. #9
    Junior Member duramaxsky's Avatar
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    Black
    98 Vette

    What gears do you have? Stock or performance ratio. Mine has the performance ratio. Stock so I am wondering where it would dyno.
    1998 C5 BLACK
    2003 CHEVY DIESEL PU ARRIVAL BLUE
    2008 SKY MIDNIGHT BLUE

  10. #10
    Senior Member Danger731's Avatar
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    It has the perf axel 3.15

  11. #11
    Junior Member Heavyvette's Avatar
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    Sebring Silver
    1998 Corvette

    Mine is also a Sebring Silver 98 6 Speed. I love driving the car. I have the Billy Boat Route 66 exhaust.

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