1/4 Mi W The "magic" 300 Rwhp?

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by 90lxwhite, Mar 18, 2014.


  1. 90lxwhite

    90lxwhite Mustang Master

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    Hey fellas I was just curious what kind of ballpark et's y'all guys run who are around the 300 rwhp mark? Fox or sn it street trim, no slicks and preferably a radial not drag radial
    Thanks
    Mike
    #1
  2. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    http://robrobinette.com/et.htm

    According to this handy cslculator, a 300 whp car weighing 3300 is capable of a 12.95. I'd guess a 13.30 -13.60 on a street tire
    #2
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  3. 90lxwhite

    90lxwhite Mustang Master

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    What kind of power are you making my man?
    #3
  4. rbohm

    rbohm Founding Member

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    most cars that make 300hp, and weigh in at about 2800-3300lbs, have a capability to run in the low 13s to high 12s in the 1/4 mile.
    #4
  5. A5literMan

    A5literMan Mustang Master

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    I agree with madspeed. With regular street tires you'll loose somewhere around 1/2 sec in et. Remember that et is dependent on a lot of factors like ability of driver,air quality,weight,chassis,track prep,etc. I would expect your car would run in the mid 13's in your supposed scenario. If you really never plan on making many passes I wouldn't worry about the et. You'll have a fun street car.
    #5
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  6. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    I have never been dynoed or to the track with this car. I should be around 500 whp
    #6
  7. 90lxwhite

    90lxwhite Mustang Master

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    Damn
    #7
  8. Onefine88

    Onefine88 Previously 89SSC18

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    That's neat! never seen that before.
    According to that handy calculator, in perfect conditions my 3340lb. vert could possibly make low 11 second passes with a good driver and tires.
    Already got the tires on it. LOL
    Cool!
    #8
  9. FoxMustangLvr

    FoxMustangLvr Advanced Member

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    This link below is a sticky in the general talk section. You can find combos that are at or near what you have or might want and find people with +/- 300 whp with time slips. Excellent info in there.

    http://www.stangnet.com/mustang-forums/threads/guess-my-h-p-the-dyno-1-4-mile-time-thread.677534/

    You'll see variations with 1/4 mile e.t's from people with 300 whp. That's because, like mentioned before, it's how the power is transferred to the ground. If you have 300 whp and stock suspension, radials and don't know how to launch then you're not going to be as fast as an experience driver with aftermarket suspension designed for drag racing and he knows how to race. Some people have a 2 sec 60ft and others have a 1.6 60ft time and making the same HP to the wheels.

    Reading the story about @Sharad is eye opening about E.Ts (in the beginning) it's more about suspension than it is HP. He got his car in the high 12's with only a few typical engine bolt ons starting with a stock LX 5.0 and mostly suspension upgrades and slicks. Maybe somebody else could provide a link.
    Last edited: Mar 18, 2014
    #9
  10. Bullitt347

    Bullitt347 man bewbs please...

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    I love theoretical racing...........my car is so damn fast that way it is sick!
    #10
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  11. Onefine88

    Onefine88 Previously 89SSC18

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    LOL, Thats why I'll never take my car to the track. If I did , I might find out it's not nearly a fast as it is on paper.

    I just don't know if I could handle that disappointment.:)

    Nothing can hurt a mans feelings more than a Chassis Dyno and/or a trip to the track.
    Last edited: Mar 19, 2014
    #11
  12. 90lxwhite

    90lxwhite Mustang Master

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    Amen
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  13. srtthis

    srtthis the guy doing it does every local racers rear end

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    i learned a long time ago if im going to go to the track im not going on street tires. if i want to sit there and spin i will do it on the street. lol
    #13
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  14. RangerJoe

    RangerJoe Advanced Member

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    Agreed, just a wasted trip.

    Joe
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  15. 25thmustang

    25thmustang Advanced Member

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    256 rwhp.
    295 rwtq.
    3100 lbs give or take.
    285/35/18 Falken radials out back.
    In this trim I went 12.95 @ 107 (I forget the mph, but 107-108 is my thought).
    #15
  16. mikestang63

    mikestang63 Mustang Master

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    bench dyno's are like the New York Jets. Both look great on paper.
    #16
  17. A5literMan

    A5literMan Mustang Master

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    Mike, I think you overstepped your analogy...the New York Jets suck on or off paper:rolleyes:
    #17
  18. srtthis

    srtthis the guy doing it does every local racers rear end

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    yea... make that the redskins or the cowgirls.
    #18
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  19. 90lxwhite

    90lxwhite Mustang Master

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    :spot:
    Ez on them cowboys ace
    #19

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