Originally Posted by TomR
...set up a high speed lane change and a slalom...as simulation for the most typical freeway speed emergency manuvers.
The logic of lower center of gravity, lower profile tires and firm suspension seems extremely strong for the freeway emergency handling Andy tested...how is it you can think a 2500HD with a very high center of gravity and very high ration tires could perform sudden manuvers well...in a freeway speed emergency?
herein lies the basic and critical flaw in this entire exercise.
the premise that 'lane changes' are the preferred freeway emergency maneuver...
when slowing down or stopping, WITHOUT changing lanes is almost ALWAYS the best action.
'lane changing' is in fact an extremely dangerous action, and the actual cause of many avoidable highway collisions....
and sadly OVER used by modern (metro loop) inexperienced drivers.
yes there are occasional situations where lane changing might be the preferred action.
but NOT many.
when towing out on the 'high seas' of the interstate, veteran long haul drivers give a wider birth, as they should.
yes i realize 'trucker drafting' happens but that again is a different issue.
approaching metro areas the behaviors change because of the local drivers and their behaviors...
towing into/around metro areas, we need to pick the ideal lane, be aware of those around us, use lights and signals and NOT be part of the race...
why the surprise that a low center car with low profile tires and tuned suspension handle better?
of course they do.
but towing isn't about sports car handling. towing IS about behaving like the better professional overtheroad truckers do...
-anticipate, leave space, know YOUR stopping distance, and give a wide birth to the nuts in cars darting in-n-out of traffic...
in other words safe towing is about reducing the potential of high speed events.
it is NOT about closed course high speed lane changing, leave that to the sports cars...
towing is not about following so close that the only option is swerving into another lane...
one of the many advantages to a truck is the ability to see 'over and beyond' the small cars in front of us.
rv towing is a completely different driver skill set.
yes big trucks and suvs are over used for daily drivers and have inherent issues (mpg, roll over, head/neck injuries, braking)
but again towing, and especially a BIG trailer is about other issues.
using the jag as an example...
-limited cargo, limited vision, limited off road, in the grass, rv park, bookdocking potential.
i would NOT choose to tow a 34 with a jag, even if the jag was FREE...
give most a/s have marginally adequate cargo space, the truck IS for hauling crap!
low profile tires....
again an absolute need for performance driving, but for towing?
so the demand from towing tires and the characteristics of good towing tires are very different
from performance tires.
high mileage, good punture resistance, extra load capacity, grip in all conditions, resistance to curbs and pot holes, and so on...
yes there are now 20 inch truck tires with improved load capacity but again...
i would NOT choose to tow the 34 with 20s, even if the 20s were FREE!
the attributes of a great towing suspension are not the same as a great handling performance suspension...
(porsche cayenne asside)
load carrying capacity, adjustablilty, durability, steering that ISN'T to tight, and comfort are needed for towing.
while tight steering, good high speed on center feel, properly balanced under/over steer, good road feedback, and so on define performance steering.
the few published comparisions demonstrate that a big truck (f-250) towing a trailer with disc brakes...
stops in less distance than the truck alone.
BUT the tv still needs to be able to stop/control the trailer, should the trailer brakes fail or malfunction.
i love driving fast on closed courses and tracks.
i love what great sports cars can do.
i'm sure the towing exercise was fun, i'd love to have been driving (not using MY trailer)...
but folks looking for sports car handling and attributes while towing...
need to understand that is NOT what safe towing is about...
don't get lost in the performance specs and keep the BIG picture in view.
again learning to behave like the BIG/GROWN UP truck drivers do is the responsibility that comes with towing.