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Old 03-10-2010, 12:26 PM   #141
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Originally Posted by oilstain View Post
Unscientifically judging by the pics earlier in the thread where you see the helper spring compressed, if the shock is about 2.5" across, the compressed helper spring is about half of that (1.25") realistically, if the spring has a 2.5 ID, then the shock body must really be a little smaller, so that number drops down to about an inch.

yeah looking again it seems to be about 1.5" or so.

so. 4 + 1.5 = 5.5"

so oem = 5.5"
7" 250 = 4.8" (plus helper = 6.3")
9" 220 = 6.5"

the 7" 250 would be the safer choice unless there were a good 1" of threads left to go lower. I have a feel there would be, considering the images I posted before showed a slammed car (on ISCracing tophats) with plenty of room to go lower.
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Old 03-10-2010, 01:03 PM   #142
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Better balance between the front and rear rates. That's what this thread is been all about mainly, not getting rid of the helper spring. -__-

Edit: I think the ans to your question in in post #124
I've been one of the weenies talking about spring rate changes too.

My question is: What is the benefit of going with a 9" without helper vs a 7" with helper if the spring rates are the same?

My thought here is that I want to buy the most effective, stupid cheap *** setup, and not have to go back and buy new cheap springs after I'm done.

With the NA kit's 400lb front, I'd prefer the 220 or even 200 rear, but it's not that easy to find. With 400/250 and stock sways (19mm/11mm) I see a FRC of only 53.7% - not stellar, but way better than the 46.0% of the RL 400/350 kit.

If I could find 200's I'd see 58.7%, pretty damn good, no disconnected sways, no buying super stiff/ expensive tubular sways, ect.

If I could convince RL to send the 425 fronts instead of the 400s I'd see 55.0% with the 250 rears. Closer, not perfect.

If anyone knows any more inexpensive sources for 7" 2.5 springs please shout em out!
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Old 03-10-2010, 01:05 PM   #143
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Originally Posted by oilstain View Post

My question is: What is the benefit of going with a 9" without helper vs a 7" with helper if the spring rates are the same?
less chance of coil bind at higher ride heights. that's about it.

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Originally Posted by oilstain View Post

If anyone knows any more inexpensive sources for 7" 2.5 springs please shout em out!
QA1s are as cheap as you are going to get. Hyercoil, afco, and eibach are all over $60 each spring. otherwise start living on ebay.


there's a set of 5 kg/mm (279#) 8" springs on ebay for $60 shipped...best i can find right now.
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Old 03-10-2010, 01:22 PM   #144
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QA1s are as cheap as you are going to get. Hyercoil, afco, and eibach are all over $60 each spring. otherwise start living on ebay.

there's a set of 5 kg/mm (279#) 8" springs on ebay for $60 shipped...best i can find right now.
Reduced risk of coil bind, well damn, that makes sense.

I'd go with the QA1s if they had a 200 or 225 ish. the 250 is still a bit much for the 400 front. I'm emailing the poor folks at RL again, this time asking if they'd throw the 425 in to the NA kit.

We'll see.
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Old 03-10-2010, 01:28 PM   #145
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if they didn't ship from china with 425s, you're not getting them. ask what the difference between NA and NB kits actually is besides the rates.

I'm going from a 550/300 setup to a 400/250 setup, but I have a 7/8" front sway.
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Old 03-10-2010, 01:55 PM   #146
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if they didn't ship from china with 425s, you're not getting them. ask what the difference between NA and NB kits actually is besides the rates.
QFT, doesn't hurt to ask though.

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I'm going from a 550/300 setup to a 400/250 setup, but I have a 7/8" front sway.
56.9% with stock 11mm rear bar. Not bad at all.

I'm trying to find a racelands + 2 cheap springs to use with my stock sways so I don't have to buy any other new parts. I also just enjoy researching crap like this.

Edit: CRAP, I just read somewhere that if lowering the car, I should get adjustable endlinks for the bars. Even for cheapies thats at least another $100. Any rules of thumb as to when it's necessary: like ride hight 14" = fine, 13" = tons of preload, 12" = don't give a crap about handling so it doesn't matter, or something like that?

From reading about other cars, often when you go too low for your endlinks things break ($). Breaking things and cheap but worthwhile don't go together.

Damnit, I think you really need a degree to fully understand suspensions.

Last edited by oilstain; 03-10-2010 at 02:44 PM.
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Old 03-10-2010, 02:15 PM   #147
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I've been one of the weenies talking about spring rate changes too.
Yeah, my fail. I read your post too quick.
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Old 03-10-2010, 02:17 PM   #148
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It seems like losing the helper springs and using a longer spring could get rid of the potential for coil bind too.
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Old 03-10-2010, 02:54 PM   #149
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Yeah, my fail. I read your post too quick.
When I re-read my post about that, I realized I didn't give any context and didn't ask it very clearly, but I have been whoring my post count on this thread, so I figured everyone would get it. So I facepalmed for both of us
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Old 03-10-2010, 03:17 PM   #150
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I wouldn't go larger than a 7" spring. There's not that much room in a lowered miata. Plus 6-7" springs can be used on future diy coilover projects.
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Old 03-10-2010, 03:43 PM   #151
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Quote:
Originally Posted by oilstain View Post
When I re-read my post about that, I realized I didn't give any context and didn't ask it very clearly, but I have been whoring my post count on this thread, so I figured everyone would get it. So I facepalmed for both of us


Quote:
Originally Posted by jacob300zx View Post
I wouldn't go larger than a 7" spring. There's not that much room in a lowered miata. Plus 6-7" springs can be used on future diy coilover projects.

Ok so the outcome is:

Get riceland
Get 250lb QA1 7" 2.5 ID
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Old 03-10-2010, 04:22 PM   #152
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Ok so the outcome is:

Get riceland
Get 250lb QA1 7" 2.5 ID

Except!!! It's still not quite right. If there were only 200lb or 225lb 7" 2.5 cheapies.

Though I'll probably just do this, then eventually get a thicker front sway to make up for the bias.
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Old 03-10-2010, 04:29 PM   #153
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I found 8" 200lb 2.5 ID
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Old 03-10-2010, 04:54 PM   #154
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I found 8" 200lb 2.5 ID
How much per pair?

QA1s are priced each, but since you need two, I figured that would be a better standard. ($75.76 + shipping for the 250lb 2.5ID 7")
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Old 03-10-2010, 04:57 PM   #155
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H&R race springs $58.50 each. Sounds good.

ALLSPRINGS.COM Shopping Cart
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Old 03-10-2010, 04:58 PM   #156
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Old 03-10-2010, 05:58 PM   #157
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Cool, I contacted him. I'd really love to see a good cheap source that others would be able to use for the NA Racelands + 200 or 225 rear spring set up.

As long as they don't fall apart more than any of the other models that they make, these will be the next Chinacharger.
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Old 03-10-2010, 06:23 PM   #158
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Chinadampers
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Old 03-10-2010, 08:45 PM   #159
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Chinadampers
In for the trademark.
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Old 03-10-2010, 08:57 PM   #160
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Chiampers sounds catchy
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