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Thread: Trip to track after 4:10 gear swap.

  1. #1
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    Trip to track after 4:10 gear swap.

    What a disappointment. Lost .01 of a second. Yes. Actually ran slower in the 1/4.

    Picked up .162 in the 1/8th. Whoop de freekin' do!

    Is something not right? There was a strong headwind all night or maybe I gained a few pounds but never would have imagined.


  2. #2
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    Quote Originally Posted by Jtrip View Post
    What a disappointment. Lost .01 of a second. Yes. Actually ran slower in the 1/4.

    Picked up .162 in the 1/8th. Whoop de freekin' do!

    Is something not right? There was a strong headwind all night or maybe I gained a few pounds but never would have imagined.

    Post before and after timeslips to be able to figure out what the issue is..................
    Neil
    2003 Mercury Marauder - DBP/DC
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    1964 Mercury Marauder - BLK/BLK

  3. #3
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    Quote Originally Posted by 8UWITH6 View Post
    Post before and after timeslips to be able to figure out what the issue is..................
    First pic should be fastest run before.

    Second set of slips are from tonight.
    Attached Images Attached Images

  4. #4
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    Quote Originally Posted by Jtrip View Post
    What a disappointment. Lost .01 of a second. Yes. Actually ran slower in the 1/4.

    Picked up .162 in the 1/8th. Whoop de freekin' do!

    Is something not right? There was a strong headwind all night or maybe I gained a few pounds but never would have imagined.

    Was your car retuned for the new gearset? In dreamland, I’m considering 4:10 gear set, 3500-3600 stall converter and CAI - keep in mind our stock engine torque peaks at 4250 rpm. Stock stall for my ’04 is between 2500-3000 rpm - let’s just say 2500 for this scenario. The car will have to be retuned to make it all work.

    I’ve had no dealings with MartyO on this board but he has many positive references here. Tell him what you have and he should be able to mail you what you need.
    Current Garage:

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    “You've gotta dance like there's nobody watching,
    Love like you'll never be hurt,
    Sing like there's nobody listening,
    And live like it's heaven on earth.”
    William W. Purkey

  5. #5
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    Quote Originally Posted by Invective View Post
    Was your car retuned for the new gearset? In dreamland, I’m considering 4:10 gear set, 3500-3600 stall converter and CAI - keep in mind our stock engine torque peaks at 4250 rpm. The car will have to be retuned to make it all work.

    I’ve had no dealings with MartyO on this board he but has many positive references here. Tell him what you have and he should be able to mail you what you need.
    I bought a tune from him with a 3:55 and 4:10 option. Not sure what difference it would make besides the speedometer. I switched it over. Maybe I did something wrong. My MPH has dropped in the 1/4 but I assume that is because of the gear swap.

  6. #6
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    Quote Originally Posted by Jtrip View Post
    I bought a tune from him with a 3:55 and 4:10 option. Not sure what difference it would make besides the speedometer. I switched it over. Maybe I did something wrong. My MPH has dropped in the 1/4 but I assume that is because of the gear swap.
    Fuel, spark and transmission maps should all be different, along with the speedo correction. Hmmmm….
    Current Garage:

    2005 Mustang GT Premium
    2019 Ranger Lariat Super Crewcab 4WD
    2015 Triumph Trophy SE



    “You've gotta dance like there's nobody watching,
    Love like you'll never be hurt,
    Sing like there's nobody listening,
    And live like it's heaven on earth.”
    William W. Purkey

  7. #7
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    Check the density altitude of both days online, I bet the DA was better in June last year.

    You can check the DA of the track back a few years. Wallace racing might have the calculator, i forget.

    Can you add more timing in first gear? That sixty foot is terrible

    Hth
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  8. #8
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    Put a converter in it.

  9. #9
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    Quote Originally Posted by Jtrip View Post
    First pic should be fastest run before.

    Second set of slips are from tonight.

    Your better run a few days ago at 6:22pm, the DA was Density Altitude: 426 feet
    Relative Density: 98.76 %


    Your timeslip from June 24 2017, the DA was Density Altitude: 2366 feet
    Relative Density: 93.26 %

    Read more: http://www.dragtimes.com/da-density-...#ixzz5DPXHuWnB

    OK, so something is seriously wrong with your car. It should have went much faster with the lower DA... I would ask Marty to chime in. With the above information, he will see that something is not correct. The car should have more HP with lower DA. This is the MPH at the 1/4 mile mark. Your down a few MPH.
    So your lacking HP. What gasoline do you run?
    The twins2.3 whipple/aluminatorVortech V-2 lots of goodies

    Current marauders
    04 DTR totaled JUST NOW starting to part out 7-21-2021 https://youtu.be/REUxjP1BVpg

    04 Silver Birch Dark Charcoal Hardtop Whipple Supercharger
    04 Silver Birch Dark Charcoal Hardtop V2 Supercharger
    04 Silver Birch Dark Charcoal Converted
    03 DBP Light Flint #122
    03 DBP Dark Charcoal #232
    03 Silver Birch 300b Light Flint Going to fix er up
    03 Black 300a
    04 Silver Birch Dark Charcoal moonroof in the works

    04 Heaton Swapped DTR
    Joe's Wrecked DTR rebuild thread

  10. #10
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    Sorry bro, you can keep a knockin' but you can't come in.

    "Zeph78

    This message is hidden because Zeph78 is on your ignore list."

  11. #11
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    Quote Originally Posted by Turbov6Bryan View Post
    Your better run a few days ago at 6:22pm, the DA was Density Altitude: 426 feet
    Relative Density: 98.76 %


    Your timeslip from June 24 2017, the DA was Density Altitude: 2366 feet
    Relative Density: 93.26 %

    Read more: http://www.dragtimes.com/da-density-...#ixzz5DPXHuWnB

    OK, so something is seriously wrong with your car. It should have went much faster with the lower DA... I would ask Marty to chime in. With the above information, he will see that something is not correct. The car should have more HP with lower DA. This is the MPH at the 1/4 mile mark. Your down a few MPH.
    So your lacking HP. What gasoline do you run?
    Thanks. I will.

    "Premium fuel only"

  12. #12
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    It's alright J I'm not here to derail your thread like you did mine. Just to share some real world experience with the two Marauders I own.

    My newest Marauder has the same mods that you have done and like you, I wasn't impressed with it. My old Marauder had a 2800 stall converter and the difference was night and day. These are small cube engines in heavy cars with tight converters from the factory. These engines also like rpm and the factory converter won't let the engine get moving before the car does. I chose a 2800 stall FTI converter because it was cheaper than the 3000 stall that's more popular. I think you would really be impressed by how much of a difference a good stall converter makes in these cars. Another good thing is they're way cheaper than a set of sw long tube headers and exhaust. Just going from a 3:55 to the 4:10 isn't much of a difference, but when coupled with a good LU stall converter it's much better. Good luck with whatever you decide to do. I'm going to swap things over from mine one at a time to see what difference each mod makes.

  13. #13
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    Something is up... my stock car would only run 15.1.... 4.10 gears and tune she dropped to a 14.5... is your car stone stock other than the gears and tune? 14.80's on a stcok car is really quite good but that 60' time is junk...
    #2941 300A
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  14. #14
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    Quote Originally Posted by Curless View Post
    Something is up... my stock car would only run 15.1.... 4.10 gears and tune she dropped to a 14.5... is your car stone stock other than the gears and tune? 14.80's on a stcok car is really quite good but that 60' time is junk...
    So you went a 14.5 with a gear and tune which is what I think he has, and he went a 14.8? What mph and 60' did yours do?

  15. #15
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    Quote Originally Posted by Curless View Post
    Something is up... my stock car would only run 15.1.... 4.10 gears and tune she dropped to a 14.5... is your car stone stock other than the gears and tune? 14.80's on a stcok car is really quite good but that 60' time is junk...
    CAI, Marty's tune, 4:10's that's it. No tire spin either.

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