New guy with old stuff

[Frank Lee]

I would suggest you go out and look at a Camaro emblem; then get back to us on that.

[MGB=MPG]

Fuel Economy Advantage of 2-Speed Axles
Chapman, L., "Fuel Economy Advantage of 2-Speed Axles," SAE Technical Paper 831798, 1983,

data showing the fuel-saving capability of a two-speed versus a single speed axle
The two-speed axle with ratios straddling the ratio of the single speed provided substantial fuel savings when used as a transmission range extender at highway speeds.

[JRMichler]

I'd like to know what the Colorado/Canyon four cylinder with five speed manual transmission would do in a vehicle that's 700 lbs lighter than my Canyon and has less frontal area. Then add a grille block, belly pan, and LRR tires.

[Frank Lee]

Originally Posted by MGB=MPG

Fuel Economy Advantage of 2-Speed Axles
Chapman, L., "Fuel Economy Advantage of 2-Speed Axles," SAE Technical Paper 831798, 1983,

data showing the fuel-saving capability of a two-speed versus a single speed axle
The two-speed axle with ratios straddling the ratio of the single speed provided substantial fuel savings when used as a transmission range extender at highway speeds.

This isn't a medium duty truck.

[MGB=MPG]

the data applies *i think * if you are running a 50CC scooter or a a big mill. l

THINK FRANK .. think outside the box do not be a NEGATIVE input ,, select your lanuage and be a positive input


more gear selections does not increase the *drag* from gears the the power runs from engine to 1st gear set . to second gear set .. straight..

if i have 5 or 6 or 8 selections in 1st set and 3 -4-5
selections in the auxiliary many combinations so as to select the gear that will allow the ensy tensy power plant to operate at MAXIMUM FUEL EFFICIENCY WOT / Max torque through all ranges
gear drag is only on THOSE selected ..

i wish i could find the elegant display of that power flow through gear sets
no much more if i have a 8x4 than if i have the 5x2 ...

sad to say i never have found any much good gear sets
save on the big rigs

good gear set will allow one to be FULL THROTTLE top gear top speed and not get no added speed save on the down grade

i want a good aero body with about 1 L power plant and a lot of gears .. all you modern slackers would want somekinda automatic..
i want aero body 1 Liter displacement turbocharged .. LOTS gear combinations available {manual]
with the top gear combination at or about the theoretical drag vs power out put

[Frank Lee]

I have thought about it!

ALL the gears are ALWAYS meshing. Lots of spinning shafts, bearings, and gears are gonna equal more parasitic losses whether only one particular gearset is xferring power at that moment or not. And where do you find this dinky light-duty multiple speed rear axle? Heavier transmissions and axles are well known to absorb (waste) more power.

I also believe you can spend too much time shifting. Even in my 5-speed car I can skip shift almost always. Clutching and shifting is a necessary evil. Early editions of my car had a "High MPG" transmission option- it was a 4 speed vs the standard 5! The way I skip shift, a three speed trans would be totally adequate and probably have lower parasitic losses besides.

[drainoil]

Originally Posted by cleanspeed1

There have been rear drive TDI conversions. If you go to TDIClub.com a guy put one in a Jeep Liberty.

The engines that I was thinking about are the MB OM606 ( twin cam, 24 valves, non turbo or turbo I6), the OM 612 ( the 5 cylinder they used in the Sprinter vans ), OM603 ( sohc, 12 valve, mechanical injection 6 cylinder ), or the infamous OM617 ( 5 cylinder, IDI, turbo or non turbo ).

You mentioned Perkins diesels. Parts are not that bad to get for those things since there are a lot of boats and industrial equipment still running them, and people know how to get more power out of them.

Or, if you like the noise, you could put a baby Detroit Diesel in ( 4-53, 3-53 ) with a T5 5 speed like this guy did in his Ford pickup
or this one Aw heck, why not? It'll only piss off the neighbors!

And they get near 30 mpg with them.

Those look really fun to drive.

Although not sure if they'd fit in the OP's Fleetline.