Tuesday, September 10, 2013

Generation 5 SRT Viper inherits design flaw causing oversteer

The old saying about not changing good thing certainly does not apply to the new Viper.  +Ralph Gilles  and the rest of the Viper team apparently are too lazy to change anything at all, including CHEAP changes that could greatly benefit the new car.

All previous Vipers have been plagued with severe OVERSTEER under hard throttle.  What causes it?  The excessive overhang is the major contributor.  However, there is a small detail that heavily accentuates this main cause:  the rear mounted battery, mounted on the DRIVER's side. 

The rear mounted battery is a great idea, helping a lot with weight distribution but... there are a few factors that have to be understood before taking this approach.  Sir Isaac Newton is the person to talk to before designing any car.  Apparently Gilles and the rest of the SRT team must have been heavily sedated in high school when laws of physics had been taught to them.

Here is the deal:  ideally, a rear mounted battery should be mounted either over or as close as possible to the rear axle, preferably BEFORE the axle.  Explanation how loading axle to improve traction is a trivial one but... Gilles refuses to acknowledge this part and the battery in the new Viper is located exactly where it was in the previous generations.  Granted, the fuel tank is in the way, however, the battery still could be closer to it instead of residing next to the rear bumper. 

The other problem, a very simple one to correct is that all Vipers continue to have this battery on the wrong side of the car, the battery should be on the PASSENGER side, not driver, to offset the weight of the driver and to some extend minimize the momentum its presence creates.

Now, combine the excessive rear overhang resulting from the short wheelbase and this extra weight hanging behind the driver and aft the rear axle and there it is, an explanation why Viper is plagued by this very dangerous oversteer.  Now Ralph, any particular reason why you could not at least put the battery on the passenger side?  Pretty obvious the more things change, the more they stay the same.

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