Advantage of Swift Springs - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*slider2828* · 01-14-2019, 12:36 PM

Quote:

Originally Posted by Speed Junkie

Yeah figured. I had read about them not fitting a long time ago but yeah.

Also figured. And yeah I don't even plan on running THAT wide lol.

I already have a rear S14 subframe. I was mainly talking about front knuckles since the rear roll center isn't nearly as bad.

Yeah front roll centers suck on an S13.... I recently got driftworks knuckles.... They are the V1's but meh I am not doing any competition stuff... I think they have Time Attack or Track or Drift versions now where ackerman is different I think.

Speed Junkie · 01-14-2019, 02:22 PM

Quote:

Originally Posted by slider2828

Yeah front roll centers suck on an S13.... I recently got driftworks knuckles.... They are the V1's but meh I am not doing any competition stuff... I think they have Time Attack or Track or Drift versions now where ackerman is different I think.

I plan on getting GKtech grip knuckles. How did your car feel after installing yours? Aside from rolling less.

*slider2828* · 01-22-2019, 05:03 PM

Quicker turn in, and a bit more stability under braking..... Braking used to feel like shit... now its average to sports cars nowdays....

gills · 01-28-2019, 09:54 PM

Any part that serves any dynamic function that needs to be rated and needs to be consistent that comes from the chinaspeed factory is at risk of being a complete lie.

Back when I was having "fun" messing around with OEM type springs since that's what I was limited to at the time in the racing I was competing in, I procured and measured several different OE type springs.

The worst offender of them all was this Megan Racing front S-chassis lowering spring. This is advertised as ~350 lbs/in which no other company even comes close to. The second I opened the package I knew immediately it was a lie just by looking at the spring wire diameter.

You can calculate the spring rate yourself:

Free length:

Compressed to a little more than what the static corner weight on the front of an S-chassis is:

And then a little more the spring is completely blocked and the force spikes:

01-22-2019, 05:03 PM	#33
slider2828 Premium Member Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,824 Trader Rating: (13) Feedback Score: 13 reviews	Quicker turn in, and a bit more stability under braking..... Braking used to feel like shit... now its average to sports cars nowdays.... __________________ Turn and Burn!

01-28-2019, 09:54 PM	#34
gills Zilvia Junkie Join Date: Dec 2012 Location: Long Island, NY Posts: 449 Trader Rating: (13) Feedback Score: 13 reviews	Any part that serves any dynamic function that needs to be rated and needs to be consistent that comes from the chinaspeed factory is at risk of being a complete lie. Back when I was having "fun" messing around with OEM type springs since that's what I was limited to at the time in the racing I was competing in, I procured and measured several different OE type springs. The worst offender of them all was this Megan Racing front S-chassis lowering spring. This is advertised as ~350 lbs/in which no other company even comes close to. The second I opened the package I knew immediately it was a lie just by looking at the spring wire diameter. You can calculate the spring rate yourself: Free length: Compressed to a little more than what the static corner weight on the front of an S-chassis is: And then a little more the spring is completely blocked and the force spikes: __________________ IG: core4motorsports www.core4motorsports.com

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