Anyone running TRD springs with stock struts? - Toyota Yaris Forums

RomGrr · 03-27-2009, 10:37 PM

Consider that the springs control the ride height. Therefore, with a shorter spring, the stock-sized strut will face a larger natural compression, even while parked. Less space between the wheel and the strut tower (which is the objective when lowering the car) means that the stock strut has to compress just to fit where it is supposed to. Shorter (and usually stiffer) struts do not have this problem because they were designed for lowered applications. There is no doubt that lowering springs place a higher burden on the stock struts. The stock struts WILL wear out faster because of this. Cutting the bumpstop is supposed to reduce the load placed on the stock strut by increasing the amount of room the strut has between the wheel and the bottom of the strut tower.

Make sense?

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03-27-2009, 10:37 PM	#21
RomGrr View User's Garage Drives: 2007 Yaris HB Join Date: Feb 2009 Location: Parts Unknown Posts: 24	Consider that the springs control the ride height. Therefore, with a shorter spring, the stock-sized strut will face a larger natural compression, even while parked. Less space between the wheel and the strut tower (which is the objective when lowering the car) means that the stock strut has to compress just to fit where it is supposed to. Shorter (and usually stiffer) struts do not have this problem because they were designed for lowered applications. There is no doubt that lowering springs place a higher burden on the stock struts. The stock struts WILL wear out faster because of this. Cutting the bumpstop is supposed to reduce the load placed on the stock strut by increasing the amount of room the strut has between the wheel and the bottom of the strut tower. Make sense?