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10-21-2006, 10:57 PM
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#1
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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Horsepower calculator
I was bored so i looked up the calculators that spit out wheel horsepower given your et, trap speed, and raceweight.
They spit out between 332-337 rwhp, or 381-387 at the flywheel out of my vert...can this be right??? Only "power mods" the car has is a full exhaust, cold air intake, and mail-order tune...can these mods really add this much power 
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1999 Corvette FRC
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10-21-2006, 11:02 PM
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#2
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12 Second Club
Join Date: Aug 2005
Location: Toms River,NJ
Posts: 556
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They are off, your car should be making around 300-310 rwhp at the most. My ls1 only makes 320 rwhp and runs a best of 12.5. Drive train loss on a stick may vary from 10-15% and with an auto 15-20%
So your FWHP maybe between 330-350, I would tend to lean towards the lower number since I have seen people with the Lt4 kit only make 330 rwhp.
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2001 10th Anniversary FireHawk #105 of 139
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Last edited by Bandit; 10-21-2006 at 11:11 PM.
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10-21-2006, 11:20 PM
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#3
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Mr Fantastic
Join Date: Aug 2004
Location: West Milford NJ
Posts: 7,917
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dude its all about the dipstick
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Matt
B18B1 FTW
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10-22-2006, 02:47 AM
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#4
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Join Date: Dec 2005
Location: Boston/North
Posts: 9,214
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pfft.. you guys are totally missing it....
its all about the stickers...
bet there's atleast one you forgot to count on your cold air intake
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Quote:
Originally Posted by BonzoHansen
dumbass.
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10-22-2006, 10:41 AM
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#5
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Lifetime Power Member
Join Date: Jul 2004
Location: London, UK
Posts: 862
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Those calculators also say my car puts 240+ to the wheels and it dyno'd 197.
g
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2008 Mysterious Solstice GXP - teh hotness!
2002 Pewter V6 Camaro M5 ~ SOLD 
mods: Gear, weight reduction, tuning
Fear the Gear. 13.585 @ 100.05 1.827
Beater: 93 Jeep Grand Cherokee
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10-22-2006, 11:05 AM
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#6
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,694
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i dont think those calculators are acurate due to the fact they dont take gearing into consideration. they are more accurate for cars closer to stock
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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10-22-2006, 11:19 AM
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#7
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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most of the calculators are intended to represent maximum power required to attain a specific trap speed. never use any calculator that bases results on ET, they are even less accurate.
some people have also told me that most formulas are closer to the power at the flywheel than at the wheels. i ran it through the formula i use and came up with 349hp(counting on your car being around 3800lbs) 349 * .8 (average 20% drive train loss) = 279.2 rwhp. which consiudering how few mods you have isn't an unrealistic number for your car.
[/math nerd]
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10-22-2006, 11:30 AM
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#8
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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ah ok coo...just curious
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1999 Corvette FRC
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10-22-2006, 11:37 PM
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#9
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10 Second Club
Join Date: Aug 2005
Location: lake hopatcong
Posts: 331
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i dynoed my car at ttp last week and my car made 390rwhp and 370 rwt, and ive been 10.38@128.52 the car is also 3200lbs. figure that ***** out!!!
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10-22-2006, 11:39 PM
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#10
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Queen of Destruction / NJFBOA Supporting Sponsor / Moderator / 12 Second Club / 2006 Member of the Year / PITA
Join Date: Aug 2004
Location: I dunno..
Posts: 8,327
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Quote:
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Originally Posted by camaroAL
i dynoed my car at ttp last week and my car made 390rwhp and 370 rwt, and ive been 10.38@128.52 the car is also 3200lbs. figure that ***** out!!!
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i dont feel so bad about my numbers there anymore now.. i think they lie 
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We're a drinking team with a racing problem.
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10-23-2006, 12:01 AM
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#11
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10 Second Club
Join Date: Aug 2005
Location: lake hopatcong
Posts: 331
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ive been trying to figure out how any of this makes sense, i know people who have engine dynoed well over 500hp and they cant catch me or barely do. to tell you the truth rwhp doesnt mean **** to me anymore. unless of course i figure this all out...
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10-23-2006, 12:02 AM
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#12
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,694
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it seems like TTP has a problem with all the older cars. my car dynoed at 330 though so i cant complain 
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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10-23-2006, 10:36 AM
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#13
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Queen of Destruction / NJFBOA Supporting Sponsor / Moderator / 12 Second Club / 2006 Member of the Year / PITA
Join Date: Aug 2004
Location: I dunno..
Posts: 8,327
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Quote:
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Originally Posted by camaroAL
ive been trying to figure out how any of this makes sense, i know people who have engine dynoed well over 500hp and they cant catch me or barely do. to tell you the truth rwhp doesnt mean **** to me anymore. unless of course i figure this all out...
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did bill dyno your engine when he built it?
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We're a drinking team with a racing problem.
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10-23-2006, 11:13 AM
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#14
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Token v6 Guy
Join Date: Sep 2004
Location: No longer neon land :(
Posts: 5,703
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It's the dip stick!
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2013 Dodge Challenger SRT8 - 12.079 at 116.45
2010 Ford Taurus SHO - stage 4+ tune and an intake - no times yet
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10-24-2006, 11:36 PM
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#15
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10 Second Club
Join Date: Aug 2005
Location: lake hopatcong
Posts: 331
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never was dynoed, i had bill do my machine work, and i assembled it. and then it went right into the car.
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10-25-2006, 09:33 AM
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#16
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Join Date: Aug 2005
Location: Lakewood
Posts: 452
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What type of dyno do they use? Mustang or Dynojet?
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10-25-2006, 09:41 AM
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#17
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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TTP has a Dynojet 224x
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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10-25-2006, 09:55 AM
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#18
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Join Date: Aug 2005
Location: Lakewood
Posts: 452
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Quote:
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Originally Posted by Tru2Chevy
TTP has a Dynojet 224x
- Justin
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That is very strange then but those rear wheel horse figures can't be right based on the times or else the car must have run the 1/4 broke something and then have been dynoed..
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Last edited by Formulalt1; 10-26-2006 at 12:51 AM.
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10-25-2006, 10:51 PM
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#19
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10 Second Club
Join Date: Aug 2005
Location: lake hopatcong
Posts: 331
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after the dyno its been back to the track and has still run the same #'s. and my 60ft has even picked up to a 1.35
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