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What Would It Take for YOU to buy a diesel car?

1503 messages,  Last post on Nov 14, 2009 at 1:11 PM

You are in the Automotive News & Views Forum. Your Hosts are steve_ & claires

What is this discussion about? Car Buying, Biodiesel, Diesel, Hybrid Cars, Coupe, Hatchback, SUV


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#688 of 1503
Re: in the news [jlbl] by Mr_Shiftright HOST
Dec 18, 2008 (11:59 am)
Reply

Replying to: jlbl (Dec 18, 2008 11:42 am)

it's tricky to calculate projected high speeds only by mathematics. The engine may not be able to pull the highest gear to the maximum RPM, due to aero effects, etc.
 
As you increase speed, the HP you need increases exponentially, not linearly.
#689 of 1503
Re: in the news [Mr_Shiftright] by ruking1
Dec 18, 2008 (12:01 pm)
Reply

Replying to: Mr_Shiftright (Dec 18, 2008 11:59 am)

Indeed your assertion is probably true. I suspect for Jose this is true also, but I will not put words in his mouth, but he (as well as I) are just reporting the reality rather than projecting.
#690 of 1503
Re: in the news [Mr_Shiftright] by jlbl
Dec 18, 2008 (12:48 pm)
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Replying to: Mr_Shiftright (Dec 18, 2008 11:59 am)

Yesterday I came back home after driving with my wife 1,000 miles to and fro. In the end, highway average speed was 73 mph as a result to try cruising at 86 mph (2,200 rpm), with occasional peaks up to 100 mph to rock the engine. All in cold wether, ranging from -3ºC to 6ºC. Averaged consume (tank filled twice) was 33.5 miles per gallon.
 
That, as rucking1 has said, was reporting from reality.
 
1750 rpm = 68 mph
2000 rpm = 78 mph
2250 rpm = 87 mph
2500 rpm = 97 mph
3000 rpm = 117 mph
4000 rpm = 155.34 mph
 
Those were products of multiplying rpm by respective gear multiplication factors. Yet most of them have been assessed by myself (only up to 3000 rpm ). In that, I merrily acknowledge my wife collaboration as a co-pilot; she wrote down the figures I simultaneously read on the speedometer and the 'cuentarrevoluciones' of my 335d. I can be very obsessed when checking the performance of my cars.
 
As you increase speed, the HP you need increases exponentially, not lineally.
 
I may be wrong, but I believe that when increasing speed the fuel burned to get the necessary HP and the HP itself is what increases not lineally. I was speaking of revs., not of HP or fuel necessary to obtain the speed/revs.
 
Regards,
Jose
#691 of 1503
Re: in the news [Mr_Shiftright] by kcram HOST
Dec 18, 2008 (9:56 pm)
Reply

Replying to: Mr_Shiftright (Dec 18, 2008 11:59 am)

Kinda why I love my Cummins Ram. My hp peak is just 2900 rpm (325 hp), so it's still making an insane 589 lb-ft at that rpm. (Torque peak is 610 lb-ft at 1500, so there's very little fall-off through the whole rev range.) In-gear redline is 3200, and I can hit it in every gear, including overdrive.
 
kcram - Pickups Host
#692 of 1503
poor exchange by steve_ HOST
Dec 24, 2008 (1:01 pm)
Reply
Subaru UK puts the brakes on Impreza diesel importation
 
#693 of 1503
Re: poor exchange [steve_] by ruking1
Dec 24, 2008 (1:11 pm)
Reply

Replying to: steve_ (Dec 24, 2008 1:01 pm)

Good time to make a deal on Subaru diesels !!! This of course is a HUGE advantage for Euro oems, i.e.,: VW.
#694 of 1503
Apropos of nothing in particular by bumpy
Jan 02, 2009 (3:07 pm)
Reply
This little buggy is fully US-legal as of yesterday.
#695 of 1503
Re: Apropos of nothing in particular [bumpy] by ruking1
Jan 02, 2009 (3:11 pm)
Reply

Replying to: bumpy (Jan 02, 2009 3:07 pm)

Love that front fence !!!
#696 of 1503
Re: Apropos of nothing in particular [bumpy] by gagrice
Jan 02, 2009 (3:45 pm)
Reply

Replying to: bumpy (Jan 02, 2009 3:07 pm)

I have given them and the Land Rover diesels a thought. Once they are 20 years old they can be brought in legally. Strange laws we have.
#697 of 1503
Re: Apropos of nothing in particular [ruking1] by Mr_Shiftright HOST
Jan 02, 2009 (5:33 pm)
Reply

Replying to: ruking1 (Jan 02, 2009 3:11 pm)

GEEZ -- we don't need a law to ban diesels, we need a law against push bars like that. I mean, if they can put crash bars on the back of trucks to protect us from being decapitated, how about sawing off the corral fence from the front of SUVs?

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