I noticed that if you are 4-LOW, it shifts hard. I was just curious as to how
fast it will accellerate in 4-LOW and it goes like a bandit! too bad top speed
is too slow for 1/4 mile... maybe 1/8 mile racing though.
-- -=Mike Kuriger 1991 Isuzu Impulse RS 1.8 2000 Dodge Durango SLT 4x4 4.7"Steven T. Ekstrand" wrote:
> Let me tell you what I know about the Multi-speed. I can't vouch for its > accuracy but I was told this by the Service Manager of my local dealer. He > dealt incredibly straight with me. When I asked questions he didn't know > he went and pulled his tranny guy off the line, just to come over satisfy > my curiosity. Genuinely nice guy. > > I was there to ask about adjusting the computer for a shorter diameter > tire. No dice. The play in the computer is from ~723 to ~755 revs per > mile. Not a very big range. And one that goes up in diameter from > 255-65-15 not down. So those 285-35-15 AVS Intermediates will have to > wait. I can't rack up that many miles! Back to 295-50-15 Totally hard as > a rock piece of crap BFG Radial T/A's. > > While there I complained that the new multispeed tranny was great while > towing on grades, but was the lamest slushbox I've heard felt on WOT > shifts. He bowed his head and said, yes it is. The computer actually > retards the engine timing for a split second during the shift! He said > they did this to give smooth Cadillac like shifts. I replied they probably > did this cause DC was afraid it would hand grenade. He then conceded that > it really wasn't intended to be a truck tranny. Then it got interesting. > > He said the tranny was the same one being used in many Mercedes models. > There it is a 6 speed unit. There are also provisions for having user > selected modes (like economy, comfort, sport, manual), but there is no talk > of making these features available on the Dodges. This tranny will be the > one in the rear wheel drive 300M and Charger models if they are built (and > said they would be). These models will also get Mercedes independent rear > differential units. > > He didn't think anybody would be helpful in the aftermarket for this > tranny. But he said if anybody does figure it out, there is a lot of > potential there. But I think there is a big concern about liability. > > Now back to my opinion. Making a tranny shift harder is usually easier on > the tranny. Obviously, it is harder on u joints and differentials. But > the 9 1/4 behind the multispeed is a good unit. The concern seems to be > eliminating the engine retard feature. Will the multispeed hold up to the > full output of a modified 4.7L??? > > I've wondered if this retard feature has anything to do with the sensation > 4.7 owners often report that the truck feels like it shifts harder and the > truck pulls better at 3/4 throttle than WOT. > > I'm going back to work now.... > > -Steve "I wish I had gotten a 5 speed (manual)" Ekstrand > > ----- Original Message ----- > From: "Stlaurent Mr Steven" <STLAURENTS@mctssa.usmc.mil> > To: <dakota-truck@buffnet.net> > Sent: Thursday, October 05, 2000 7:53 AM > Subject: DML: RE: MULTI-SPEED AUTO??? > > | No...I want the 6 speed clutchless version (coming in 2003). > | > | ------------------------------------------- > | Steven St.Laurent > | Test Engineer > | Test Branch, GSD, MCTSSA > | MARCORSYSCOM, USMC > | 760-725-2506 (DSN 365-2506) > | Work:mailto:stlaurents@mctssa.usmc.mil > | Home:mailto:saint1958@home.com
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