Z32 Aluminum Uprights

[positron1]

The shock mounting points on the Z32 spindles and the 240SX spindles are different. My question is would a rear set of Z32 shocks/struts fit a S13 with the Z32 aluminum spindles bolted on?

[Dammitboy]

bump for me too.

[94_240sx]

Even though they fit, spring rate and dampening will be somewhat off because z32 is a heavy car. Best way would be getting a set of coilovers or struts with z32 rear lower bracket available such as KTS.

[coupe240sxguy]

/\ / \ that is the only way that I have heard it been done correctly

[sbird1]

I am almost done removing my rear knuckles from the 300zx. Will my KYB AGX suspension be able to convert to the different mounting point?

[gumby74]

^^ nope.

[Soravia]

What about cutting off and welding in stuff? Dangerous?

[gumby74]

yup. Explosion, eviscerate, shrapnel are words that come to mind when people think about welding shocks. If this is going on a street car any benefits from the lighter weight aluminum will be offset by forking out for the correct coilovers.Honestly, save the headache, and transfer the brake and bearing hubs over to the 240 spindles. It won't take very long, and the only obstacle left will be sorting out the parking brake, which you would have to do anyway.

[gordonliu]

ive read the nissan performance mag install utilizing this ( i think its Nissan performance magazine)

they used zeal coilovers

im wondering how easy it is to get custom coilovers made.

also what kind of a premium do you pay for this?

if its like 500 more to get the coilovers assembled in a custom manner, it may not be worth the 16 pounds of unsprung weight.

[gumby74]

In regards to the whole weight thing I have 2 questions for you.Is this a track specific car?Does your car have a radio and a/c?

If it is a track car, pony up and make it happen.If it is a street car, there is no noticeable benefit to be gained from this mod. You can argue the benefits of light weight 'til the cows come home. On the street, you will probably never push the car hard enough for 10, 15, 20 lbs to make a difference.

[working4aS13]

You can argue the benefits of light weight 'til the cows come home. On the street, you will probably never push the car hard enough for 10, 15, 20 lbs to make a difference.

Even if it is unsprung weight, such as this case?

[hannibal]

I believe the Z shocks are longer than the 240's so they physically wont fit.

KTS will give you coils with the Z style mount for the same price. You just gotta let them know when you order. I think NPM said they got the Zeal lower mount free too.

I think Z spindles are only practical if youre installing coilovers...

[gumby74]

Unsprung, sprung it does not make a noticeable difference. To the car maybe, but again, unless you have some serious work done to the car, and you have the skill to use it, you still will not for any practical reason max out either the car or your skills on the street on a daily basis.Do you plan on hauling *** to the grocery store and slide into a parking space at 50mph and stop in a few inches from hitting another car? Pro'lly not. I understand where you are trying to go with less weight, but in all reality, you will benefit more from really good tires than losing 50 pounds on the car.

[hannibal]

Less weight is always better.

Sprung vs unsprung does matter. I think I read that 1 lb of unsprung weight is like 4 lbs of sprung weight. I dont remember how they reached that conclusion though. But clearly adding a 200 lbs passenger isnt the same as adding 50 lbs to each wheel. I think the difference would be noticable.

[gumby74]

Do what you are going to do kids.Just out of curiosity, how much does a gallon of fuel weigh?How about the spare tire?A/C components?Heater core?Backseat?I can keep going, but if you are to dense to get it, I won't waste my time. Less weight is always better. No one will dispute that. The insignificance of the amount of weight (under 15lbs) on a STREET car is not going to be noticeable. Not for the cost or the hassle. Knock 100lbs off the car for under $500 and then it will be worthwhile.That said, yeah go ahead and install the aluminum hubs. Because they are so light, it will take 10 feet off your braking distances, take anothe 2 seconds off your 1/4 mile times, and boy the car should hit 170mph after that modification. I wish I were that senseless, I would do it myself in a heartbeat.

[Nismo_Freak]

Unsprung, sprung it does not make a noticeable difference. To the car maybe, but again, unless you have some serious work done to the car, and you have the skill to use it, you still will not for any practical reason max out either the car or your skills on the street on a daily basis.Do you plan on hauling *** to the grocery store and slide into a parking space at 50mph and stop in a few inches from hitting another car? Pro'lly not. I understand where you are trying to go with less weight, but in all reality, you will benefit more from really good tires than losing 50 pounds on the car.

Take a 7 lb. weight and accelerate it at about 25 G's. It now weighs 175 lbs. and will rapidly compress your shock. The shock will resist it with the high speed valving but ultimately this causes an impact load on the entire suspension and chassis structure. The entire car acts to absorb the energy. Once it begins to rebound the shock will overshoot and oscillate as it tries to control the unsprung mass. Meanwhile the tire has become unloaded / loaded / and unloaded again causing the rear end to skip.

That's why unsprung mass matters. It's beneficial to everyone, and it is very noticeable if you are aware of it's effectiveness. In this case very grippy tires would make zero difference.

[hannibal]

Do what you are going to do kids.Just out of curiosity, how much does a gallon of fuel weigh?How about the spare tire?A/C components?Heater core?Backseat?I can keep going, but if you are to dense to get it, I won't waste my time. Less weight is always better. No one will dispute that. The insignificance of the amount of weight (under 15lbs) on a STREET car is not going to be noticeable. Not for the cost or the hassle. Knock 100lbs off the car for under $500 and then it will be worthwhile.That said, yeah go ahead and install the aluminum hubs. Because they are so light, it will take 10 feet off your braking distances, take anothe 2 seconds off your 1/4 mile times, and boy the car should hit 170mph after that modification. I wish I were that senseless, I would do it myself in a heartbeat.

Reducing weight helps a car handle better. It may not make huge improvemnts in acceleration, braking or, cornering, but it the car will be more stable and easier to control. So less weight can indirectly contribute to better performance.

Just out of curiosity, how much does a gallon of fuel weigh?14 gallons of water weighs about 120lbs. Gasoline is lighter, so call 100lbs??

How about the spare tire?28lbs

A/C components?29lbs

Heater core?10 lbs (estimated)

Backseat?21lbs

That info is from a website (now stolen by wikipedia). http://en.wikibooks.org/wiki/N...ctionIn total, we've removed about 180lbs and spent way less than $500. The only money spent was for a fuel cell.