Notices
964 Forum 1989-1994
Sponsored by:
Sponsored by:

HP and BHP... the diffs?

Thread Tools
 
Search this Thread
 
Old Aug 4, 2002 | 08:18 AM
  #1  
Kevin Ross's Avatar
Kevin Ross
Thread Starter
Addict
Rennlist Member

 
Joined: Mar 2002
Posts: 629
Likes: 1
From: Melbourne, Australia
Post HP and BHP... the diffs?

Hello

Another question...

What is the difference between Horsepower and Brake Horsepower? Never figured this one out.

Thanks
Reply
Old Aug 4, 2002 | 08:39 AM
  #2  
John Miles's Avatar
John Miles
Pro
 
Joined: May 2001
Posts: 588
Likes: 0
From: Ashburton, Devon, England
Post

Hi Kevin,

The non-technical explanation is that bhp stands for Brochure HP. For a technical explanation take a look <a href="http://www.nsxprime.com/FAQ/Miscellaneous/TorqueHPSpeed.htm" target="_blank">HERE</a>.

Phew!

John

PS. I see from you spin video that you have too many horses anyway!
Reply
Old Aug 4, 2002 | 08:54 AM
  #3  
Kevin Ross's Avatar
Kevin Ross
Thread Starter
Addict
Rennlist Member

 
Joined: Mar 2002
Posts: 629
Likes: 1
From: Melbourne, Australia
Post

[quote]Originally posted by John Miles:
<strong>PS. I see from you spin video that you have too many horses anyway!</strong><hr></blockquote>

Yeah - or too little skill!

Reply
Old Aug 4, 2002 | 09:03 AM
  #4  
Kevin Ross's Avatar
Kevin Ross
Thread Starter
Addict
Rennlist Member

 
Joined: Mar 2002
Posts: 629
Likes: 1
From: Melbourne, Australia
Post

John

I read that page you sent to me...

But I think I get it...

Thanks!
Reply
Old Aug 4, 2002 | 09:09 AM
  #5  
Kevin Ross's Avatar
Kevin Ross
Thread Starter
Addict
Rennlist Member

 
Joined: Mar 2002
Posts: 629
Likes: 1
From: Melbourne, Australia
Post

Oh Yes...

And how does Kilowatts enter the equation? Is there a correlation, or are they unrelated?

Sorry, but I use these terms all the time to compare cars without really understanding them.

Again, thanks in advance!
Reply
Old Aug 4, 2002 | 01:21 PM
  #6  
Gary C2's Avatar
Gary C2
Advanced
 
Joined: Jul 2001
Posts: 66
Likes: 0
From: Iowa
Post

Kevin,
Kilowatts is just another unit of power. The conversion from hp to kW is .764kW/hp.

Gary
Reply
Old Aug 4, 2002 | 05:40 PM
  #7  
Cupcar's Avatar
Cupcar
Rennlist Member
20 Year Member
 
Joined: Jun 2001
Posts: 3,881
Likes: 164
From: California Boardwalk, Skanderborg Denmark
Post

I thought BHP was BRAKE Horsepower as in dynomometer brake, which is the device used to measure the dynamic torque output of an engine. The torque numbers derived are used to calculate horsepower. <img src="graemlins/yltype.gif" border="0" alt="[typing]" /> <img src="graemlins/burnout.gif" border="0" alt="[burnout]" />
Reply
Old Aug 4, 2002 | 08:18 PM
  #8  
Kevin Ross's Avatar
Kevin Ross
Thread Starter
Addict
Rennlist Member

 
Joined: Mar 2002
Posts: 629
Likes: 1
From: Melbourne, Australia
Post

Cupcar,

That is what I now understand having read the site John posted. However, I still am not sure if my car is 320 HP, or 320 BHP. And is there a difference?
Reply
Old Aug 4, 2002 | 09:34 PM
  #9  
Cupcar's Avatar
Cupcar
Rennlist Member
20 Year Member
 
Joined: Jun 2001
Posts: 3,881
Likes: 164
From: California Boardwalk, Skanderborg Denmark
Post

I think when the manufacturer quotes HP they mean brake horsepower. BHP would be more correct but cumbersome for advertisment speak. There are differences in the conditions that the brake horsepower are determined under. This can mean differences in corrections for temperature, pressure, presense or absense of accessory drives, mufflers etc. so you have to know if HP value is SAE net, SAE gross, DIN etc. and compare apples to apples.
Reply




All times are GMT -3. The time now is 08:07 PM.