Archive for the ‘Mercedes’ Tag

Fitting 8 speeds into Wrangler

The Jeep Wrangler is one of two vehicles still being built with Mercedes’ five-speed automatic (made by Chrysler in Indiana). The reason for that, according to Allpar sources, is the length of the ZF eight-speed which would be much better for Wrangler: it may fit into the Unlimited, but it won’t fit into the standard Wrangler.

Even when the next-generation “JL” Wrangler arrives, that transmission will be too long, as it’s made now. Yet, Automotive News and Allpar have both heard that the iconic Jeep will indeed have the eight-speed, which is practically mandatory if one wants to get the most out of the Pentastar V6 engine – especially if the Wrangler drops down to the 3.2 liter version, as we expect.

The solution may be to carefully alter the transmission and transfer case, according to former Jeep engineer, and current engineer-at-large, Robert Sheaves. See his illustrated article to learn more about how the eight-speed can be shoe-horned into even short-wheelbase Wranglers.

As read on: http://www.allpar.com/news/index.php/2014/12/fitting-8-speeds-into-wrangler

Are ProMaster diesel’s coming soon?

Buyers who have been holding out for a diesel engine in the Ram ProMaster van may be satisfied soon, as the company has told dealers that the engine, boasting 295 lb-ft of torque, 174 horsepower, and “phenomenal fuel efficiency,” is on the way.

The van market has long been in the doldrums, with buyers having a choice between ancient, fuel-hungry Fords and expensive Mercedes, but is now becoming hotly contested with new entries from Nissan (including one badged as a Chevrolet), Ford, and Ram. The Ram ProMaster has two powertrains, one already on sale — the Pentastar V6 coupled to a six-speed Chrysler automatic — and the other, a Fiat design, reportedly available for ordering this month. The latter is a four-cylinder diesel, created by Fiat Powertrain (FPT), confusing displacing the same 3.0 liters as the VM diesel in the Ram 1500 and Jeep Grand Cherokee.

Ram boasted that the Fiat engine has exceptional low-end torque and cold-start capability, with a forged steel crankshaft and connecting rods; 5%-biodiesel compatibility; best-in-class 18,500 mile oil change intervals; an efficient M40 six-speed automated manual transmission (which can be treated as though it’s a full automatic); and a standard towing/hauling package.

The package may be attractive not only to normal fleet buyers, but to the upfitters who have started making ProMaster passenger vans and campers.

As read on: http://www.allpar.com/news/index.php/2014/02/promaster-diesel-this-month