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#1 |
Registered Member
Join Date: Sep 2000
Location: rock hill,S.C. 29730
Posts: 420
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![]() Prob a stupid Q:, but I haven't really checked it out yet.
Is it very useful?
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88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306. DYNO TUNED TO 300.97 RWHP 337RWTQ |
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#2 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() Flywheel, I believe. Hard to predict RWHP considering the possible changes to the driveline.
I think the analyzer can be a helpful tool in some cases. |
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#3 |
Moderator
Join Date: Aug 2000
Location: Milan, OH
Posts: 2,699
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![]() See I would have said RWHP. The equations of motion don't know anything about the internal losses, just what it takes to accelerate a given mass over a fixed distance...that would mean the power required at the ground. Its assuming a linear or constant rate of acceleration too, which is far from reality. Its such a simple calcuation, that it doesn't take in to account other variables such as aerodynamic drag, rolling friction, etc. I'll have to dig out my old physics and mechanics books and see if I can verify the numbers.
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Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!" |
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#4 |
Rat Killer
Join Date: Aug 2002
Location: Cold ass Ohio
Posts: 1,143
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![]() I'm going with Jeff on this one. RWHP. Simple equation, it takes "X" amount of horespower to move "Y" amount of weight at "Z" speed in 1320 feet. Moroso's slide rule has it on there, and it states RWHP on it, so I think the analyzer uses the same formula.
It's useful to "ballpark" your horsepower, and when at the track I always tune to my MPH instead of my ET.
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d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply..... ![]() |
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#5 |
Registered Member
Join Date: Oct 2005
Location: saint clair shores MI
Posts: 15
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![]() depends which calculator....hp and weight to fig et? or et and trap speed w/ weight to fig hp.
the et calculator must be flywheel, cuz the numbers seem too high, the other i would guess to be rwhp |
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#6 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() If it's indicating RWHP, then I'd trust that's what it is. Mostly I use the analyzer for fuel system guesstimates, and I know that's flywheel.
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#7 |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() The analyzer on this site must be using FWHP. I punched in 500 and 3325 (my cars exact specs) and it was right on the best et and mph.
Andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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#8 |
I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
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![]() FWHP, dang Andy, I didn't know you made the move over to the front drive import scene
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NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft |
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Thread | Thread Starter | Forum | Replies | Last Post |
is the analizer flywheel or rearwheel horepower?? | superduty | Blue Oval Lounge | 5 | 08-02-2004 08:52 AM |
Why Dan??? | fast88 | Blue Oval Lounge | 45 | 08-02-2002 01:59 AM |
Analyzer on this site | pac663 | Windsor Power | 0 | 09-23-2001 03:48 PM |