V1 Rear Coilover Kit

[aaronbuley]

Finally replacing the donor suspension on the rear of #136. The rear sway is annoying and I figure it has to be this... right? Hmmm...
Ordering the rear coilover kit from DF. Any thoughts/advice?

https://store.dfkitcar.com/products/rear-coilover-kit

 

[Gtstorey]

Add a rear sway bar? Fairly simple and cheap.

 

[Robinjo]

Also, is your alignment solid?

 

[aaronbuley]

Yeah, it's good. Had it done at a high end performance shop. Took it out today and was looking backwards while making it sway and the coils from the donor just seem too weak and compress too easily. Ordered the DF kit for it and will see how that improves.

 

[Gtstorey]

It's one thing to have an alignment done at a high shop, it's another thing to what they set it at. I think a lot of us have varied somewhat from DF's suggested settings.

 

[duthehustle93]

Yeah, it's good. Had it done at a high end performance shop. Took it out today and was looking backwards while making it sway and the coils from the donor just seem too weak and compress too easily. Ordered the DF kit for it and will see how that improves.

It's pretty hard to eyeball how much of your stroke you are using. Wrap a zip tie on your damper shaft at the bottom and drive at the limits of your application (whether that be swaying on a street, autoX, track day...). Inspect the cable tie afterwards and see how high it rode up the damper shaft. If it's burried in the bump stop, it means you either need shorter bump stops or a higher spring rate. If you haven't touched the bump stop, going stiffer isn't going to make it better, unless you subjectively prefer a stiffer feeling car... which is totally fine if that's your goal.

 

[Desert Sasqwatch]

Caution: stiffer rear springs will make the car oversteer more (not an ideal situation unless you are setting up for drifting). A compensating change must also be made to counter the rear suspension change - less stiff rear swaybar or stiffer front springs or front sway bar. It's all about balance.