So, how much horsepower does a stock S4 *really* have?
12-01-2001, 04:41 PM
#41
Senior Member
Thread Starter
Join Date: May 2000
Posts: 6,556
Likes: 0
Received 0 Likes
on
0 Posts
:-) This wasn't at the wheels...should've made that clear.
I forget what they got at the wheels, tho...hopefully, someone else will chime in.
Anyhow, as I mentioned above, if you got 180 HP at the wheels and driveline losses are 30%, you've got 257 crank hp; hopefully, this helps.
Anyhow, as I mentioned above, if you got 180 HP at the wheels and driveline losses are 30%, you've got 257 crank hp; hopefully, this helps.
12-01-2001, 04:57 PM
#45
Senior Member
Thread Starter
Join Date: May 2000
Posts: 6,556
Likes: 0
Received 0 Likes
on
0 Posts
Oh...
...it means "laugh out loud", i.e. "good one", or "that was funny!". I was laughing because yeah, if someone claimed to be getting 250 hp at the wheels in a stock S4, they *would* be full of it. I don't remember what those folks got, though, and I can't find the #*$% link, which I thought I'd bookmarked...grrr...
Oh, and here are some other net-ism's for you:
ROFLMAO: rolling on the floor laughing my *** off
FWIW: for what it's worth
WOT: wide open throttle
IMO: in my opinion (IMHO: in my humble/honest opinion; IMNSHO: in my not-so humble opinion)...
And so on...
Oh, and here are some other net-ism's for you:
ROFLMAO: rolling on the floor laughing my *** off
FWIW: for what it's worth
WOT: wide open throttle
IMO: in my opinion (IMHO: in my humble/honest opinion; IMNSHO: in my not-so humble opinion)...
And so on...
12-01-2001, 07:03 PM
#48
Member
Join Date: Mar 2000
Posts: 2,380
Likes: 0
Received 0 Likes
on
0 Posts
ACTUALLY, it does matter. higher altitude = less oxygen/volume of air = less HP
There is the issues of barometric pressure, and getting air into a naturally aspirated engine.
But because there is less oxygen in the volume of air entering the engine, there is less fuel, and therefore less power.
But because there is less oxygen in the volume of air entering the engine, there is less fuel, and therefore less power.
12-01-2001, 09:43 PM
#49
Senior Member
Thread Starter
Join Date: May 2000
Posts: 6,556
Likes: 0
Received 0 Likes
on
0 Posts
Yes, but ACTUALLY, turbos can and do compensate for altitude...
<ul><li><a href="http://webnz.com/turbochargersnz/turbochargers.html">...and here's an explanation of how they do it:</a></li></ul>
12-02-2001, 12:36 AM
#50
AudiWorld Expert
Join Date: Oct 2000
Posts: 25,510
Likes: 0
Received 0 Likes
on
0 Posts
On the same dyno ducaticorse used, my A4....
...put out 104.7HP IIRC (you can check my PP for the graphs). That's about a 30% loss.
Also of note is that this dyno measures not the power at the wheels, but rather the power put to the ground (so it includes the loss due to the weight of wheels & tires).
Also of note is that this dyno measures not the power at the wheels, but rather the power put to the ground (so it includes the loss due to the weight of wheels & tires).