Test & Tune: 4.10 to 4.88 Results!

Discussion in 'Ram Srt-10 Racing' started by Psycho Mythic, Feb 16, 2013.

  1. Trainman

    Trainman Active Member Supporting Member

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    I agree, but there are other factors too. Like humidity, which I really don't understand, except drier is better. I was just looking at his earlier timeslip compared to the newest one. Nearly identical 60', 330' and 1/8th mile times. His real gain in ET was after the 1/8th mile while he is driving in 4th gear. I really feel that with Drag Radials he will be well into the 12's, his 60' times initially will be in the high 1.70's to low 1.80's which should yield a 12.60-12.70 timeslip. That will be fun.
     
  2. 505'sFastestViper.

    505'sFastestViper. Full Access Member

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    I pulled all the info from drag times and 1500 ft da difference is definitely enough to net his difference
     
  3. VENOMOUS1 RACING

    VENOMOUS1 RACING Has Left the Room - Banned from VTCOA!

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    1500 ft is huge in terms of DA! The fact he had a negative DA run was the real factor I believe. I do agree he'll get into the high 12s with right tire and practice.
    The crap talking on the other forum is not cool though? Oh well:dontknow:
     
  4. SrtBrad

    SrtBrad Michel Productions

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    Lets see how Cody does in similar DA's to his previous runs. Either way hard to compare between several different mods, da's and other inconsistencies. If you had fun that's all that matters.
     
  5. VENOMOUS1 RACING

    VENOMOUS1 RACING Has Left the Room - Banned from VTCOA!

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    That's what it's all about! Enjoying your truck, your way :burnout:
     
  6. Psycho Mythic

    Psycho Mythic Full Access Member

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    It seems I need to buckle down and learn about density altitude ans such, may help me choose better days to run. I cut a 12.9 @ 109 at that track with my other truck on street tires, and a 1.9 60' with an 8.4 1/8, that truck was a 06 with billy boat headers and mids, magnaflow exhaust, , b&m shifter, qa1's and caltracs, and air bags up front at that time...I raised the front as high as she'd go and pulled a 12.9, but all day long it had been running 13.1's til then. That truck also had the stock 4.56's

    What's the tallest Dr I can get on a 17" wheel? I really do want to grind calipers
     
  7. VENOMOUS1 RACING

    VENOMOUS1 RACING Has Left the Room - Banned from VTCOA!

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    The 390 is biggest as far as I know and think its 29"! Too short for my 4.56 rear :(
    You do wanna grind? Get a 16" wheel and more tire sizes :burnout:
     
  8. Psycho Mythic

    Psycho Mythic Full Access Member

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    Dang looks like Imma have to. I'll def run out of gear with a shorter tire...
     
  9. caveman

    caveman Active Member Supporting Member

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    Drier air effectively lowers DA. The easy explanation is that moist air is less dense than dry air. If you have access to percentage of relative humidity, the correction is a super easy math problem. Or, if your a caveman, you can just use an app like AutoDens to do it for you :D

    Signed,
    An Alleged Douchebag
     
  10. Psycho Mythic

    Psycho Mythic Full Access Member

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    So with corrected DA I went 0.029 seconds slower with the 4.88's and front cans gutted (and stock intake instead of volant) but I gained 2 MPH? Could have been worse I suppose, and common sense tells me that with the added traction loss with the 4.88's and only loosing 0.029 seconds, when I get some slicks and get the most out of them I still believe I will be better off...we shall see when I find me some tires.


    On the interstate and track I'm redlining at 111mph in my truck, not sure if my speedo is off or what, but when it hits the limiter that's the speed it shows. I wish she was doing 116 in 4th though, soon I'll be bumping my redline up as well...
     
  11. VENOMOUS1 RACING

    VENOMOUS1 RACING Has Left the Room - Banned from VTCOA!

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    Interesting!! That's about where I redline at :dontknow:
    Like Trainman says though I should be able to go 116-118:argh:
     
  12. Psycho Mythic

    Psycho Mythic Full Access Member

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    You have 4.56's?
     
  13. 505'sFastestViper.

    505'sFastestViper. Full Access Member

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    Your mph came from spinning.
    But with slicks do you credit your better ets. To the gears or the slicks?
     
  14. 505'sFastestViper.

    505'sFastestViper. Full Access Member

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    I think all queer cabs have 4,56 gears. Sincerely
    Douche bag
     
  15. VENOMOUS1 RACING

    VENOMOUS1 RACING Has Left the Room - Banned from VTCOA!

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    As far as I know :confused:
    The math says 4.56, but my truck will not, period, in 95,000 miles and hundreds of track passes on everything from stock 22's, M&H 390, 325's, 28", and 32", there's absolutely no way mine will trap that high! I hit limiter at 110-111 and just did it weekend before last. (I never have hit the limiter till then but always within a couple hundred rpms
     
    Last edited: Feb 17, 2013
  16. Psycho Mythic

    Psycho Mythic Full Access Member

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    Harder launch with the 4.88's over the 4.10's maybe? And the fact that you can take 2 identical trucks, put 4.10's in one and 4.88's in the other, and drive them side by side from 30 MPH then have them accelerate to 70mph, the 4.88 truck will get there first, pulls harder. Maybe that's why I gained a lil speed with worse 60' times...hmmm
     
  17. Psycho Mythic

    Psycho Mythic Full Access Member

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    Smells like 4.88's to me!! Haha :D
     
  18. VENOMOUS1 RACING

    VENOMOUS1 RACING Has Left the Room - Banned from VTCOA!

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    I've thought that but made a thread about what rpm are you at 5th gear 45 mph or something and folks with 4.56 were identical to mine so I ruled 4.88 out. Many people thought that may have been the case, but I bought the truck with not a single mod on it so found it hard to believe someone put 4.88s in her?
    Gonna do a test like your with GPS mph and see where I hit my limiter on my full "Kill Mode" setup which the slicks are identical height to our 22's
     
  19. Psycho Mythic

    Psycho Mythic Full Access Member

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    Ill go take a few pics and post them, see where im at @ 45mph in 5th.
     
  20. Trainman

    Trainman Active Member Supporting Member

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    Here's something interesting, I found my first time slip from when my truck was pure stock, full weight , on street tires,4.10 gears. Oct. 23, 2005 at Famoso , noon, 74 degrees, DA 1928': 60' 2.002, 330' 5.529, 1/8th mile 8.437 @ 85.14, 1000' 10.954, 1/4 mile 13.070 @ 106.82 mph.