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-   -   W123 40 mpg goal : The Most Aerodynamic brick (http://www.peachparts.com/shopforum/showthread.php?t=223338)

Craig 05-27-2008 12:24 PM

Quote:

Originally Posted by vstech (Post 1867024)
yup, and the same 10K at 60 mph is 166.66666666666666666666666666667 hours... or 41.666666666666666666666666666667 more time...

Now I get it. ;)

Tymbrymi 05-27-2008 02:19 PM

Quote:

Originally Posted by ForcedInduction (Post 1866150)
There is no way you are going to get a 35% gain in efficiency without some major bodywork and getting rid of the 617 for a 602.

Fixed that for you

ForcedInduction 05-28-2008 07:26 AM

Quote:

Originally Posted by Tymbrymi (Post 1867112)
Fixed that for you

Quote:

Originally Posted by ForcedInduction View Post
There is no way you are going to get a 35% gain in efficiency without some major bodywork and getting rid of the 617 for a 601.
I fixed your fix. ;)

TylerH860 05-31-2008 08:31 PM

I was watching CNN and this hypermiler was actually turning his car off while coasting off the highway. He was also pushing his car out of the driveway and gives the car a running start before he fires up the engine. I suppose if you had a manual transmission and some muscles...

bgkast 05-31-2008 08:40 PM

yeah, who needs power steering or brakes?

ForcedInduction 05-31-2008 10:43 PM

Quote:

Originally Posted by TylerH860 (Post 1870936)
I was watching CNN and this hypermiler was actually turning his car off while coasting off the highway

That only shows he doesn't know how his car works. When a fuel injected car is coasting on the highway in gear it is not consuming any fuel since the computer stops the injections.

Hatterasguy 05-31-2008 10:51 PM

Quote:

Originally Posted by TylerH860 (Post 1870936)
I was watching CNN and this hypermiler was actually turning his car off while coasting off the highway. He was also pushing his car out of the driveway and gives the car a running start before he fires up the engine. I suppose if you had a manual transmission and some muscles...

Some people get a little nuts, fuel ain't that expensive.

I spent more on booze last night than I spent on fuel last month.:D

turbobenz 05-31-2008 10:55 PM

Quote:

Originally Posted by TylerH860 (Post 1870936)
I was watching CNN and this hypermiler was actually turning his car off while coasting off the highway. He was also pushing his car out of the driveway and gives the car a running start before he fires up the engine. I suppose if you had a manual transmission and some muscles...

or he can just ride a bicycle

Bio300TDTdriver 06-01-2008 12:14 AM

Quote:

Originally Posted by Craig (Post 1867003)
I drive some pretty long distances, In the last two months I drove from CO to GA to NC to CO and made two additional round trips from CO to NC. That's about 9-10K miles, so that speed difference would be about 30 hours out of my life.

Wow you could save a couple weeks a year by flying. Of course all those fancy airplanes have ABS, so that's not gonna work for you.:D

Craig 06-01-2008 12:22 AM

Quote:

Originally Posted by Bio300TDTdriver (Post 1871046)
Wow you could save a couple weeks a year by flying. Of course all those fancy airplanes have ABS, so that's not gonna work for you.:D

Been there, done that. Used to fly about 100K per year; it sucked before 9/11, now it's completely unbearable. I'm done standing in security lines and sleeping in airport terminals waiting for delayed flights. Besides, they won't let me drive.

awsrock 06-01-2008 01:04 AM

This hypermiler guy is nuts. Personally, I would never do that much just to achieve...whatever.

I remember reading that he parks at the top of parking lots to coast down, takes off ramps at 50 with he engine off..sounds like too much effort to me. He'll be surprised when his starter dies and he can't turn it back on in the middle of the highway! So much for honda reliability there!!! (sorry, i am biased against Honda)

TheDon 06-01-2008 01:06 AM

Quote:

Originally Posted by awsrock (Post 1871059)
This hypermiler guy is nuts. Personally, I would never do that much just to achieve...whatever.

I remember reading that he parks at the top of parking lots to coast down, takes off ramps at 50 with he engine off..sounds like too much effort to me. He'll be surprised when his starter dies and he can't turn it back on in the middle of the highway! So much for honda reliability there!!! (sorry, i am biased against Honda)

its called bumping the engine over without using a starter. It just like roll starting a car, which you never use a starter. duh

Johnson Chan 06-01-2008 01:20 AM

Quote:

Originally Posted by lutzTD (Post 1866858)
i think youre giving up too soon. i think with driving technique and a few changes you could get in the 33-35 MPG range and still have something safer than an econobox will offer. If you want to spend 10-15k for a VW TDI then payback will take a pretty long time.

Some of these guys are talking about removing bumpers and interior parts, I dont think safety is a factor :rolleyes:

You might be safer in a econobox than in a w123 with no dashboard, no bumpers, no rearseats, etc.

t walgamuth 06-01-2008 08:27 AM

Quote:

Originally Posted by Craig (Post 1866869)
IMO, the most practical change would be to swap the differential. I'm still thinking about putting a 2.88 in mine; partially for mileage, but mostly to reduce the rpm at highway speeds. These cars were really geared for the 55 mph speed limit and they are just a little too buzzy at 75 mph.


I wouldn't bother with the 288, go for the 247, IMHO.

Tom W

1983/300CD 06-01-2008 08:38 AM

New differential and a nose cone. :)


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