

| Subject: | Re: Snow, 4wd vehicles and syncros |
| From: | Sudhir Desai |
| Date: | Sun, 31 Jan 2010 21:37:56 -0500 |
Why everyone needs to find an empty(no berms) parking lot, and practice drifting, starting, stopping, and turning. Sudhir On Sun, Jan 31, 2010 at 21:24, Kim Brennan <kimbrennan@mac.com> wrote: > Not my experience with my Syncros. Perhaps I don't drive like you. I have done one emergency maneuver with a Syncro, at highwy speeds (roughly 100kph, 60 mph). Vehicle in front of me (miata) spun out. I swung out of his lane, on to the shoulder, and then around him. I'm sure without the syncro traction I would have spun out on the shoulder or median. > > The side roads (what I was travelingon) here in Northern Virginia (Tyson's/Great Falls area) are twisty, not particularly well banked, with little if any shoulder. > > Of course, I automatically drive differently in snow than on drive pavement (give myself more space, prepare for turns a lot further back, etc.) Not all folk do (and the consequences are evident by the SUVs in the medians, and the interesting donut patterns in the snow at intersections.) > > The thing most folk forget when driving 4 wheel drive vehicles, is that the drive train is great for getting moving, but braking and turning still rely on the same principles that affect 2 wheel drive vehicles. Newton's first law of motion. > > > On Jan 31, 2010, at 1:52 PM, David Marshall wrote: > >> You need to drive an Audi quattro... ich liebe mein A4! >> >> The >> problem with a correctly working syncro is that just driving along it is >> only a 2WD. It will be a 2WD *until* there is a difference in speed >> between the front and rear wheel speeds. In a correctly working >> system will take about 1 or 2 wheel revolutions for the VC to fully >> engauge and the vehicle will become a 4WD. >> >> Now, take a 90deg >> intersection at 50 km/h like you would in the dry only cover it in ice and >> then a layer of snow on top of that. Do it in a Syncro and then do >> it in a quattro. With the Syncro you will have the back end come out >> because those wheels are going to spin while the fronts do nothing other >> than get slowed down by the snow. One the rear wheels start spinning >> you will start to loose control. In effect you better be quick or >> else you will get into a horrible spin. With an all wheel drive like >> the Audi quattro it is always 50/50 front and rear so one end won't spin >> even for an instant faster than the other end. >
Have something to add on this topic today? Revive this thread in the forum »