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B210 Rear Suspension conversion


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#21 datsunfreak

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Posted 01 June 2017 - 02:33 PM

This sitting on 3" kyb shocks 

 

Yes, that car is the exact combo I described. 

 

 

what leaf spring stiffeners you use?

 

That was a link to click in the words.   ;)

 

 

 

They make them in 500, 1000, and 1500 pound rates. I am 99.9% sure we used the 1000 pound version.

 

Double check the length on them before you buy. Datsun leaf springs is hell of short, yo...   ^_^

 

If it helps, most chain auto parts stores sell these if you want to check them out before you buy them. 


It's your car, just don't ruin it.


This seems like an elaborate ploy to get me to say "I like the D".


#22 datb210sun

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Posted 02 June 2017 - 05:39 AM

Haha my bad. Didn't notice it was in link form. But thanks for the info, man.



#23 datzenmike

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Posted 03 June 2017 - 01:47 PM

If you are lowering using blocks you don't need shorter shocks. The only thing that moves is the axle being spaced upward by the drop block. If you reduce the shock length there is the risk of it running out of travel going over a bump in the road. If this happens, the rear wheels will stop extending and leave the pavement. Not good.


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#24 datsunfreak

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Posted 03 June 2017 - 04:23 PM

If you are lowering using blocks you don't need shorter shocks. The only thing that moves is the axle being spaced upward by the drop block. If you reduce the shock length there is the risk of it running out of travel going over a bump in the road. If this happens, the rear wheels will stop extending and leave the pavement. Not good.

 

On a coupe, you are correct. On a sedan (which he has), you are incorrect. 

 

On a coupe, the shock attaches to the lower plate that the springs rest on. So yes, blocks don't affect shock length at all.

 

On the sedan, the shock attaches to the back side of the axle housing itself. So when you lower the car, the shocks need to be shorter. 

 

 

 

For reference, 1200 diagram, but the gist is the same...

 

 

24932.jpg


It's your car, just don't ruin it.


This seems like an elaborate ploy to get me to say "I like the D".


#25 datzenmike

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Posted 05 June 2017 - 05:36 AM

Interesting. Now if I can just learn from this.


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#26 ColdSaus

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Posted 05 June 2017 - 10:12 AM

I'm not seeing why replacing the leaf spring suspension is necessary.

 

A single leaf is a bad way to keep the rear axle centered laterally. Under extreme loading in a corner, the leaf will twist. To make the axle stable you need all the leaves.

 

If looking to lower just get lowering blocks and longer U bolts, what? $30 maybe. Axle is secure, spring rate is the same, no guessing with coils

 

I originally wanted to convert the rear leaf spring suspension to up the handling. I'm unsure if the stock leaf springs would be adequate for spirited driving. Also, things like rust could have also affected the suspensions overall performance; something I wouldn't have to worry about with a fresh pair of coilovers. if the coilover idea is unstable as well as expensive, is there an alternative leaf spring suspension that would do a better job at taking a beginner's performance car through corners? Looking at the overall cheapness of lowering blocks, the negatively remind me of cheap eBay miata coilovers (or something of that nature) and I'm unsure if that kind of suspension modification would be adequate.



#27 datzenmike

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Posted 05 June 2017 - 12:01 PM

I would rather have leaf spring for 'spirited' driving than coils. If I had coils I would just make the best of it, but wouldn't convert to them from leaf.

 

You can add stiffer or extra leaves to a leaf spring. Even flatter ones to lower. I added an extra leaf to my 710 and on my 620 had Ford F-150 leaf springs on all four corners..


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#28 datsunfreak

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Posted 05 June 2017 - 02:18 PM

I'm unsure if the stock leaf springs would be adequate for spirited driving. 

 

Trust me. You'll be fine.   ^_^

 

984850a96063eeb144b12230eead2665.jpg


It's your car, just don't ruin it.


This seems like an elaborate ploy to get me to say "I like the D".


#29 datsunfreak

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Posted 05 June 2017 - 02:23 PM

is there an alternative leaf spring suspension that would do a better job at taking a beginner's performance car through corners?

 

Leaf springs are perfect for a beginner. Predicatble and durable, just what a rookie needs. 

 

 

 Looking at the overall cheapness of lowering blocks

 

I can tell you I have beat the shit out of several cars that had them with zero problems/failures. 


It's your car, just don't ruin it.


This seems like an elaborate ploy to get me to say "I like the D".


#30 JDOM310

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Posted 01 August 2017 - 07:44 AM

Anyone have their 210 on a coil over setup? Been looking for options no applications . And also any idea on a rear disc brake upgrade option? Thank you

#31 datsunfreak

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Posted 01 August 2017 - 04:10 PM

Anyone have their 210 on a coil over setup? Been looking for options no applications . And also any idea on a rear disc brake upgrade option? Thank you

 

Might want to start your own thread. This one was for B210 suspensions, not B310.    ^_^


It's your car, just don't ruin it.


This seems like an elaborate ploy to get me to say "I like the D".


#32 JDOM310

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Posted 01 August 2017 - 05:19 PM

OK thank you.

#33 Dguy210

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Posted 01 August 2017 - 09:03 PM

Yes, that car is the exact combo I described. 

 

 

 

That was a link to click in the words.   ;)

 

 

 

They make them in 500, 1000, and 1500 pound rates. I am 99.9% sure we used the 1000 pound version.

 

Double check the length on them before you buy. Datsun leaf springs is hell of short, yo...   ^_^

 

If it helps, most chain auto parts stores sell these if you want to check them out before you buy them. 

 

Haha my bad. Didn't notice it was in link form. But thanks for the info, man.

 

I have these on my 4dr, and they do make a big difference. I did find they lifted the body about 0.5-1 inch which was a good thing for the 15s I have on the rear with the biggest tire you can just cram under there without major modifications, you can just see them in this old pic.

mc4JCbJ.jpg



#34 datsunfreak

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Posted 02 August 2017 - 03:08 PM

I did find they lifted the body about 0.5-1 inch... you can just see them in this old pic.

 

The 1000 pound version raised mine exactly 1/2".


It's your car, just don't ruin it.


This seems like an elaborate ploy to get me to say "I like the D".


#35 datb210sun

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Posted 06 September 2017 - 05:32 PM

Thanks dguy210. I haven't touched my Datsun in months. Had a new project I've been busy with. Now I'm planning to work on the suspension. I will definitely do these setup. Thanks again for the info datsunfreak

#36 datzenmike

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Posted 07 September 2017 - 05:13 AM

Anyone have their 210 on a coil over setup? Been looking for options no applications . And also any idea on a rear disc brake upgrade option? Thank you

 

 

Still wondering why anyone would go to all this trouble for coil springs? Maybe there's a reason there are no examples of it.


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#37 datsunfreak

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Posted 09 September 2017 - 02:36 PM

Still wondering why anyone would go to all this trouble for coil springs? 

 

Same reason as on any car, adjustability. 

 

Maybe there's a reason there are no examples of it.

 

Yeah, B210 owners are hell of cheap...   :rofl:


It's your car, just don't ruin it.


This seems like an elaborate ploy to get me to say "I like the D".


#38 Dguy210

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Posted 09 September 2017 - 04:15 PM

Yeah, B210 owners are hell of cheap...   :rofl:


When you're considered cheap as a Datsun owner, by other Datsun owners, you know you're really cheap.  :lol:



#39 datzenmike

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Posted 09 September 2017 - 06:39 PM

Same reason as on any car, adjustability. 

 

 

 

 

Once you get the ride where you want it why would you need to adjust it? 


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#40 datsunfreak

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Posted 10 September 2017 - 12:47 PM

Once you get the ride where you want it why would you need to adjust it? 

 

You change wheels and it rubs, you change wheels and the gap is too much, you want it lower for a show, you want it higher for a road trip, you've made changes and you need to corner-weight it again, you change springs for a race, you change springs to make it stiffer, you change springs to make it softer...

 

For someone like you, there is zero reason to have adjustable coilovers. That doesn't mean some of us have no reason to do it.   ^_^


It's your car, just don't ruin it.


This seems like an elaborate ploy to get me to say "I like the D".