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#4699400 - 03/19/18 07:57 AM why do cars have so much horsepower?
edwardh1 Offline


Registered: 01/17/03
Posts: 2984
Loc: Coastal South Carolina
My 99 maxima around 200 HP, new maxima 300. why is that? no weight increase that needs extra 100 hp.
I would rather have old size engine and better mileage. what next 350 HP in the same car?
crazy
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#4699409 - 03/19/18 08:04 AM Re: why do cars have so much horsepower? [Re: edwardh1]
JohnnyJohnson Online   content


Registered: 10/22/09
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Turbos and sales.
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#4699412 - 03/19/18 08:07 AM Re: why do cars have so much horsepower? [Re: edwardh1]
cpayne5 Offline


Registered: 12/28/05
Posts: 616
Loc: Virginia
Originally Posted By: edwardh1
My 99 maxima around 200 HP, new maxima 300. why is that? no weight increase that needs extra 100 hp.
I would rather have old size engine and better mileage. what next 350 HP in the same car?
crazy


The new car with 100 more horsepower gets better MPG.

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#4699428 - 03/19/18 08:16 AM Re: why do cars have so much horsepower? [Re: edwardh1]
MCompact Offline


Registered: 07/21/02
Posts: 4195
Loc: KY
Originally Posted By: edwardh1
My 99 maxima around 200 HP, new maxima 300. why is that? no weight increase that needs extra 100 hp.
I would rather have old size engine and better mileage. what next 350 HP in the same car?
crazy


As far as horsepower goes, some is good, more is better, and too much is just enough. That said, my Club Sport is glacially slow(a 1/4 mile ET of just over 16 seconds) but it is a blast to drive. However, I also like driving a car with a surplus of horsepower; my M235i runs the 1/4 mile in a tick under 13 seconds yet returns 26 mpg in daily driving- about the same as the Club Sport. And the C7 has an even more impressive power to mpg ratio. Great fuel economy AND performance that '60s musclecars struggle to match- I don't see a downside to that...
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#4699432 - 03/19/18 08:18 AM Re: why do cars have so much horsepower? [Re: edwardh1]
Astro14 Offline


Registered: 10/10/10
Posts: 8606
Loc: Virginia Beach
Cars have continued to improve.

Power, safety, handling, braking, MPG, luxury, features...

What's not to like??
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#4699436 - 03/19/18 08:19 AM Re: why do cars have so much horsepower? [Re: edwardh1]
mightymousetech Offline


Registered: 04/03/17
Posts: 1476
Loc: Ontario, Canada
Originally Posted By: edwardh1
My 99 maxima around 200 HP, new maxima 300. why is that? no weight increase that needs extra 100 hp.
I would rather have old size engine and better mileage. what next 350 HP in the same car?
crazy


It's called competition, and people want more power. [censored], my 8 year old Civic has 200 hp.


Edited by mightymousetech (03/19/18 08:20 AM)
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#4699442 - 03/19/18 08:23 AM Re: why do cars have so much horsepower? [Re: edwardh1]
NGRhodes Offline


Registered: 01/06/13
Posts: 336
Loc: West Yorkshire, UK
In Europe cars have gradually got heavier and larger as well (not sure how this compares with America where cars have historically been far larger), so extra power needed just to retain same performance.

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#4699447 - 03/19/18 08:28 AM Re: why do cars have so much horsepower? [Re: edwardh1]
JHZR2 Offline



Registered: 12/14/02
Posts: 41891
Loc: New Jersey
HP appeals to the uninformed emotion. It must be better if it has more power. I especially love "I can't safely merge on the highway without a v6".

Stupidity all around.

Doesn't mean big engines are bad, or high power vehicles are bad. But there is an emotional attribute that is used as an objective comparator ("this number is bigger than this one), that sells. Even to people desiring to buy appliance cars. Precisely why you get V6 Camry and similar vehicles.

Cars have gotten bigger, and heavier, and engine tech has improved to the point where recent v6 sedans get the same kind of mileage as last-gen 4 cyl.

But I do wonder what an optimized reduced power 4 cyl vehicle could do.

Pretty sure my accord hybrid is a reasonable example. It would get 40 mpg no matter what, even without the hybrid function. I mean, city driving... traffic, lots of idling, going nowhere fast. This is based upon my experiences forcing engine ops for winter heat.

But that sort of thing only appeals to peoples' pocketbooks when fuel kicks their butts. The rest of the time, the power number sells.

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#4699455 - 03/19/18 08:31 AM Re: why do cars have so much horsepower? [Re: NGRhodes]
grampi Offline


Registered: 10/08/06
Posts: 7849
Loc: OH
Originally Posted By: NGRhodes
In Europe cars have gradually got heavier and larger as well (not sure how this compares with America where cars have historically been far larger), so extra power needed just to retain same performance.


It's not just in Europe, here too. Seems like every time a model is a new generation, it gets bigger...

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#4699461 - 03/19/18 08:35 AM Re: why do cars have so much horsepower? [Re: edwardh1]
SevenBizzos Offline


Registered: 12/10/06
Posts: 701
Loc: The IL
I own three cars and a total of 20 cylinders. Total HP for the three is somewhere around 750hp. Sometimes I actually need to go 0-80 in 8 seconds.

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#4699465 - 03/19/18 08:39 AM Re: why do cars have so much horsepower? [Re: edwardh1]
zzyzzx Offline


Registered: 05/18/12
Posts: 4404
Loc: Baltimore, Maryland, USA
why do cars have so much horsepower?

The marketing department demands it. Using the above example of the same car going from 21 to 25 MPG, if the engine had gotten smaller and produced the same 200HP, then I imagine that the MPG of the newer version would be higher than 25 MPG.

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#4699470 - 03/19/18 08:40 AM Re: why do cars have so much horsepower? [Re: edwardh1]
Char Baby Offline


Registered: 05/25/05
Posts: 10074
Loc: ROCHESTER, NY
The engineers are showing just what they can do with that horsepower/torque, and how they achieved all of the HP & TQ, while still meeting strict EPA emissions & while getting quite respectable MPG. Of course, the new transmission are helping as well.


Edited by Char Baby (03/19/18 08:42 AM)
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#4699472 - 03/19/18 08:42 AM Re: why do cars have so much horsepower? [Re: edwardh1]
IndyIan Offline


Registered: 09/23/08
Posts: 9113
Loc: Ontario, Canada
Originally Posted By: edwardh1
My 99 maxima around 200 HP, new maxima 300. why is that? no weight increase that needs extra 100 hp.
I would rather have old size engine and better mileage. what next 350 HP in the same car?
crazy

You can always buy the 4 cyl version of a midsize car and get your 200hp and alot better mileage than the old Maxima. A 200hp NA 3.5l V6 can't really be tuned for much better mileage anyways over a 300hp version, and a 200hp 2.5l V6 probably won't have the torque that your old car had, so they make the 3.5l V6 with as much hp as is reasonably cheap to do so.

Most mid size cars sold do still have ~200hp though, just with a 4 banger now. If you want a low hp V6, the Outlander with a 220hp 3.0l is your last chance. I test drove one and found it just fine really, but a timing belt and a premium fuel recommendation make it kind of a silly engine...
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#4699473 - 03/19/18 08:42 AM Re: why do cars have so much horsepower? [Re: edwardh1]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1908
Loc: SE British Columbia, Canada
Itís impossible to have too much horsepower! banana

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#4699476 - 03/19/18 08:46 AM Re: why do cars have so much horsepower? [Re: Char Baby]
mightymousetech Offline


Registered: 04/03/17
Posts: 1476
Loc: Ontario, Canada
Originally Posted By: Char Baby
The engineers are showing just what they can do with that horsepower/torque, and how they achieved all of the HP & TQ, while still meeting strict EPA emissions & while getting quite respectable MPG. Of course, the new transmission are helping as well.


It's got nothing to do with the engineers. They are just told, we want 300 hp and 30 MPG by the marketing schleps.
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