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In any performance minded car, the less mass, the better. That's something which was kept in mind in the development of these cars in the first place, as in effort to get more MPG's. Chrysler already lost a lot of mass in their cars before they went public with them, so naturally, not much can be done to lose wieght without lossing parts and features of the car.

Replacing window glass with plastic helps, as does lossing the rear seats, carpets, trim, passenger's side of the dash, one or both of the two spare tires in the trunk, etc. Basically for every 100 pounds you lose, you get around 10 HP freed up. This number is even greater for rotating mass- like with rims. The less mass in your rims, the more HP your car will seem to have. Now, assuming that the 100 lb per 10 hp relationship is linear, it would then be possible to gain 1 hp for every 10 lbs lost.

Basically, if you get the lightest rims you can afford, get drilled brake rotars and belt pulleys, you will free up alot of power.

Getting the rear end lighter helps farther. Remeber, the FWD cars need the mass up front to get the good traction.

The idea is that it takes X amount of engine power for your car to move- as it is right now. Lossing mass means that X is less, and the differnce between the old and new X is power you have gained.

Other tricks of the trade include losing metal body parts in return for plastic, etc.

One idea is: if you don't use it, lose it.

Donovan said it best when he explained that with the less mass, the less work the engine requires to move the car. Also, due to the lower demands from the engine, the less stuff gets broken. Donovan also explains rotating mass as simply acting as large flywheels on the engine.

On the Dynasty, the biggest part in terms of mass is the body. All that trim is un-used, un-needed mass. Then there is the problem of that huge metal body. If I had the time and material on hand, the first body change I'd make to lose mass is replacing the rear fenders and trunk area parts with plastic. Plastic is less mass then metal, and also doesn't rust!

After that I'd move to the windows (I'd leave the front along, but get plastic windows for the rear sides and rear. And from there, the rims. Replacing rims gets expensive. Also makes the car a theift target. I personally might get better rims, but the farthest I am presently willing to go is a trip to the yard for alloy rims off of an other Mopar- as those were slightly less, look alot better, and if I had two sets of rims, I could have one just for racing slicks. That way I can keep my street tires for street driving.