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Thread: This is pretty cool

  1. #1
    Join Date
    Apr 2005
    Location
    belton, tx
    Posts
    747
    http://www.speedworldmotorplex.com/calc.htm

    Estimate your horespower based on weight vs. e.t. or trap speed

    Ran mine at 13.41 and 5250 weight. Showed 430rwhp. Allens dyno rated mine at 396hp on a hot day before I added the meth kit. I believe this is a good estimate.
    2013 2wd Z71 6.2 crew cab

    Old Truck: '04 Chevy crew cab stroked/bored 6.0 to 408ci. forged internals, patriot 68cc stage 3 heads (11.1:1cr), comp 244/246 .600 115lsa cam, 3000 yank tc, built 4L60E, walbro 255, 60# mototron injectors, pacesetter lt's 4" single no-cat exhaust

    best time 12.93 1/4 mi @ 103 in the turbo truck.

    1968 Camaro Convertible, super sweet!

  2. #2
    Join Date
    Sep 2004
    Posts
    665
    Why are the estimates based on ET and MPH so different?

    For mine the calc is as follows for a 5000 lbs.

    ET 13.80 = 376 & 444 HP
    MPH 103 = 426 & 503 HP

    My guess is traction off the line accounts for the difference.

    According to the calculators I would need to run a 13.24 to have the same HP as my MPH calculation suggests.
    No more trucks, but this is what I used to have. 2000 GMC Sierra, 6.0L-LQ4, Built 4L60, LS6 Cam, The Other Guys Headers, 3 inch exhaust and 7 chamber flowmaster, 43lb injectors, Nelson Tuning, Drop - 3/4 McGaughys Spindles, Bell Tech Shackles & Hangers. Best time 13.59 @ 106

  3. #3
    Join Date
    Nov 2005
    Location
    ohio
    Posts
    1,712
    cool link, thanks, i just have to go down the qtr to get the miissing part of the e.q.
    07 SILVERADO CLASSIC 2500 HD 4x4 CREW CAB LT3 DURAMAX LBZ/ALLISON 6 SPEED 5'' MBRP Turbo back exhaust 6'' TIP /NO CAT- NO MUFF/ AFE Intake/ EDGE HOT JUICE /MERCHANT AUTO STG III Built Allison/P I ConverterTTS Twin Lift Pumps. Tierod sleeves/Cognito braces.17x9 Moto metals_______ Old Truck ,04 Z-71/Turbocharged,/cam/stall/Zippy Built TRANS/Nelson Tuned------

  4. #4
    Join Date
    Mar 2003
    Location
    San Marcos Texas
    Posts
    4,393
    trap speed 383 wheel 451 flywheel

    ET 381 wheel 450 flywheel

    I'd say pretty accurate!
    Still kinda low for my setup!
    2006 Superior Blue Trailblazer SS AWD, Stock as a rock

    Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).

    Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning

  5. #5
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,138
    i dont really know my weight for my 2000 scsb silverado. 4.3. i weigh about 135. anyone know the weight of my truck? or at least a guestimate?
    1951 3100
    1984 C10

  6. #6
    Join Date
    Oct 2003
    Location
    TeXas
    Posts
    932
    368 by mph and 402 by E.T at the wheels.
    http://i17.photobucket.com/albums/b9...5831PM-2-1.jpg <--- TimeSlip
    RCSB 5.3 N/A 12.31 full boltons,H/C,4.10s,3800 converter. SOLD
    04 GTO
    Both Tuned By: ME

  7. #7
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,138
    well i found my weight, 2,767 and i ran the 1/4 in 79.60, and it says im producing 106 HP and 125 at the flywheel. i dont know about ya&#39;ll but that seems a little unreasonable to me. i mean 106 HP come on, a geo metro probably produces more HP then that.
    1951 3100
    1984 C10

  8. #8
    Join Date
    Aug 2004
    Location
    Magnolia, TX
    Posts
    3,259
    Originally posted by chevy1081@Dec 5 2005, 09:19 PM
    well i found my weight, 2,767 and i ran the 1/4 in 79.60, and it says im producing 106 HP and 125 at the flywheel. i dont know about ya&#39;ll but that seems a little unreasonable to me. i mean 106 HP come on, a geo metro probably produces more HP then that.
    your truck should weigh a little more than that. should be around 4400 lbs. come out to SAR on Wednesday we can weigh it out there

  9. #9
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,138
    Originally posted by 2k5Squirrel+Dec 5 2005, 09:27 PM--><div class='quotetop'>QUOTE(2k5Squirrel &#064; Dec 5 2005, 09:27 PM)</div>
    <!--QuoteBegin-chevy1081
    @Dec 5 2005, 09:19 PM
    well i found my weight, 2,767 and i ran the 1/4 in 79.60, and it says im producing 106 HP and 125 at the flywheel. i dont know about ya&#39;ll but that seems a little unreasonable to me. i mean 106 HP come on, a geo metro probably produces more HP then that.
    your truck should weigh a little more than that. should be around 4400 lbs. come out to SAR on Wednesday we can weigh it out there [/b]
    ill try to make it out. ive got finals until friday
    1951 3100
    1984 C10

  10. #10
    Join Date
    Apr 2005
    Posts
    4,229
    Trap:
    367/433

    ET:
    347/409

    Allen&#39;s Dyno:
    338


    Hmmm...not too far off.
    Gone, but not forgotten!

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