Thread: unsprung weight

Thank you. I learned how to get lighter rims, I went back from 17" to 15" second hand for a start. New Rota's still kinda out of reach. Could you elaborate on the AEM stickers? Oh, NVM :P



Googled that. I guess I don't want them, also I have K-Sports I pretty much like after setting them and re-setting and some more re-setting and adding a front strut bar. Still a bit bumpy ride now and then.



Practical. Sheep. I'm also interested in short term doable things but also like to look in to the future, if my planning works out, all I need is to look at the drivetrain (praying tranny will hold) and getting PU for everything. Oh and a rebuild SR20. I'm at square #1, getting the torque wrench(es).



I understand the dilemma. I like to tweak the fuck out of it also. Sporadically I kill things.



lolwhut? :P Still calling it useless eh... Maybe 'use less' for you. GFFFS (Go figure, for freaken sake)



Yes, it is, I suppose. Especially when someone famous has practically proven it is! However, the only statement I have, is you want to lower unsprung weight. I admit I benefit more from lowering rotating mass for now, however, still wondering here what is practical. $$$$ is not practical for me.




Point #2 taken. It just made me think when I was trying to sleep. However, I can tell you why, because I read it somewhere and I learned the hard way what rotating mass does.



Hi Shawn, you didn't answer my PM, so all flaming in this topic is on your tab

Well, maybe on mine too. What me got thinking is noticing that the brakediscs almost weigh the same as the stock wheels. I bought the ABS cvjoints and put them on sale again, since I want to get rid of ABS anyway and I also found 1 euro each 24 grammes lug nuts, while my lug nuts are 12 year old now and need replacement and I'm not yet gonna put wheelspacers in the front yet, since this requirers heavier ''bolts, bolt-ends" but for the rear I will for looks.

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What benefit I would have by reducing unsprung weight anyway?

Reducing weight allows the car to accelerate and brake more quickly (less inertia). The shocks don't need to work as hard to damp the moving mass that is the wheels and brakes. In the end, all the small changes there help.

I notice a big difference in ride simply by swapping stock wheels for light weight ones. Losing 3kg per corner makes the car feel easier to accelerate and rides smoother.

Reduce unsprung weight? Get the battery between the wheels.

edit: jere is right, my brain farted through my fingers.

You mean move center of gravity right? Moving the battery doesn't help un-sprung weight.

Reducing un-sprung weight is one of the more expensive mods in general. Lighter wheels and tires is the most practical. Going from larger wheels to smaller ones is not only helping the rotating mass but getting you a lighter tire in some cases too. The stiffer side walls on low profile tires can get pretty heavy.

Ok, I have 15 inches now instead of 17, but that is about it. So actually I reduced a little back to stock. It still feels slower then stock. On the Nx1600 it didn't seem to make much difference OZ 17 inch, OZ is heavy.

Then that will be it for the unsprung weight. I was just asking, I didn't stumble on something similar so it probably isn't popular and/ or affordable/ practical.

Lowering center gravity is interesting, replacing battery is a good idea but I don't know what to do with the open spot under the hood, I'm after a Gran Turismo so no interrior ripping and the like.

Move the battery to the right hand, passenger side of the trunk, all the way to the rear as you can.

I kind of disagree with that. I moved mine directly over the rear "axle" in the center of the car as low as I could. I know moving it as far back as possible will help counterbalance some of the engine weight, but I think that keeping the weight of the battery between the front and rear wheels will lead to better balance than increasing weight behind the rear wheels.

I am going to put mine all the way back to the right because of me. I weigh more of the battery and I want it as far as possible away from me.