cut springs - Toyota Yaris Forums

Yaristeve · 01-24-2011, 11:56 AM

In general, there is NOTHING wrong with cutting springs. Spring rates are a function of wire diameter, coil diameter, and number of coils. Cutting the coil WILL stiffen the spring inversely propotionally to the number of coils cut. As some old-timers (and I am one) have said, back in the day, cutting coils was often the only way to lower cars. I have cut my share of springs and never had a problem. You can't just go cutting willy-nilly; it takes careful consideration.

HOWEVER, having said that, Yaris springs, from the pictures I've seen, cannot be cut because the coil diameters are not uniform throughout the length of the spring. IIRC, the coils get smaller at the ends. If you cut these end coils, the springs will not sit in the seats correctly. and besides, as yet others have said, loering springs are available so you might as well use those...

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01-24-2011, 11:56 AM	#19
Yaristeve Drives: 3-door hatch Join Date: Oct 2010 Location: Los Angeles Posts: 519	In general, there is NOTHING wrong with cutting springs. Spring rates are a function of wire diameter, coil diameter, and number of coils. Cutting the coil WILL stiffen the spring inversely propotionally to the number of coils cut. As some old-timers (and I am one) have said, back in the day, cutting coils was often the only way to lower cars. I have cut my share of springs and never had a problem. You can't just go cutting willy-nilly; it takes careful consideration. HOWEVER, having said that, Yaris springs, from the pictures I've seen, cannot be cut because the coil diameters are not uniform throughout the length of the spring. IIRC, the coils get smaller at the ends. If you cut these end coils, the springs will not sit in the seats correctly. and besides, as yet others have said, loering springs are available so you might as well use those...