Hp difference

Tiny
REDBEARD726
  • MEMBER
  • 2001 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • FWD
  • AUTOMATIC
  • 139,000 MILES
Whats the difference betwenn hp at the crank and at the wheels
Sunday, February 28th, 2016 AT 12:22 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Hp at crank is what engine makes, hp at wheels is the loss due to trans and axle. Tv shows can really screw this up by showing dyno results at wheels. If you increase engine it will increase at wheels normally
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Sunday, February 28th, 2016 AT 7:53 AM
Tiny
REDBEARD726
  • MEMBER
  • 8 POSTS
So if my car says 240hp 280 torque thats at the crank?
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Sunday, February 28th, 2016 AT 2:07 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Yes btw a lot of dynos out there are not really correct because they don't have temperature correction or run at temp they are supposed to. It can make a difference, especially if it's in a room with no air quality. All OEM manufacturers are
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Sunday, February 28th, 2016 AT 3:41 PM

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