Spring springs springs
Thread Starter
Bigboy in a little car!
Joined: Nov 2004
Posts: 1,276
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From: In So Cal.. out in BFE... but in the good part... but not really by Cesar, Keith or Loren...
check the front page of this thread....
I think they are one of the cheapest springs you can buy....
I think they are one of the cheapest springs you can buy....
Mazdaspeed Springs
I spoke with Mazda Motorsports Competition and asked about spring rates. They didn't know but thought the springs were about 20% stiffer than stock. However, the interesting thing is that the spring rates for the springs and the Mazdaspeed coilovers are completely different. The coilovers are upto 90% stiffer so a 280 lb spring rate seems reasonable for the coilover. It looks like people just assumed that the spring rates for the springs would be the same as for the coilovers and that is what has caused the confusion.
http://www.finishlineperformance.com...key=RX08MS1027
http://www.finishlineperformance.com...key=RX08MS1027
Well, my nearly worthless information for the day comes from my local dealer parts department (whom I like and are generally informative, actually), who contacted Mazdaspeed about the springs. The answer he got back on the rates was "49 and 34", in some unintelligible unit of measure. Now, this is a stretch, but if you did 4.9kg/mm and 3.4kg/mm, you'd come out at 274lb/in and 190lb/in, which is very close to what has been said of these springs in the past (280/190).
As noted, this may be totally irrelevant info, but I'm going to prod them to find out more on the subject and see what they come up with. It may be that the 49 and 34 equate to roughly what speeddeamon measured on his spring tester in lb/in, in some strange unit of measure that I'm not familiar with. And if someone saw those numbers back in the day, they may have coverted them into kg/mm and ended up with the rates that have been taken as truth until now.
Anyway, we'll keep after it. And until then, we've got a whole bunch of Tein H-techs and S-techs in stock, just FYI
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As noted, this may be totally irrelevant info, but I'm going to prod them to find out more on the subject and see what they come up with. It may be that the 49 and 34 equate to roughly what speeddeamon measured on his spring tester in lb/in, in some strange unit of measure that I'm not familiar with. And if someone saw those numbers back in the day, they may have coverted them into kg/mm and ended up with the rates that have been taken as truth until now.
Anyway, we'll keep after it. And until then, we've got a whole bunch of Tein H-techs and S-techs in stock, just FYI
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Thread Starter
Bigboy in a little car!
Joined: Nov 2004
Posts: 1,276
Likes: 7
From: In So Cal.. out in BFE... but in the good part... but not really by Cesar, Keith or Loren...
DPE... thanks for the info! keep us updated.
TeamRX8.... yeah this is true. I want to go with something MUCH MUCH stiffer. and none of the springs above are even remotly close.
Why cant someone just make a stiffer freakin spring. I mean come on, really now. do we really need all those springs that are vertually the same. :-/
I just need to start rolling pennys so I can afford the coil overs.
TeamRX8.... yeah this is true. I want to go with something MUCH MUCH stiffer. and none of the springs above are even remotly close.

Why cant someone just make a stiffer freakin spring. I mean come on, really now. do we really need all those springs that are vertually the same. :-/
I just need to start rolling pennys so I can afford the coil overs.
One ball, corner pocket
Joined: Apr 2004
Posts: 2,053
Likes: 1
From: Fontucky, right next to Patriotville
He has the Racing Beat bars along with Koni struts.....and in the quest for a "good spring"....it seems that most of the springs that we have looked at so far have similar spring rates...it is just ride height that differs (that and the actually measuring of spring rates rather than what the company advertises).
Thread Starter
Bigboy in a little car!
Joined: Nov 2004
Posts: 1,276
Likes: 7
From: In So Cal.. out in BFE... but in the good part... but not really by Cesar, Keith or Loren...
not untill I find someone that wants them "tested" first. I dont want to raise the car for now reason.
and honestly. even if the Teins are what they claim. I still dont think its enough to make it worth it. they are only a little stiffer then the sprints I have now.
and honestly. even if the Teins are what they claim. I still dont think its enough to make it worth it. they are only a little stiffer then the sprints I have now.
One ball, corner pocket
Joined: Apr 2004
Posts: 2,053
Likes: 1
From: Fontucky, right next to Patriotville
...but then again, haven't most people suggested to you that your car is too low and that the driving issues you were having may be related to hitting the bump stops? Raising the car to Tein S-tech height may actually improve more from getting away from the bump stops.....
I have the stiffest front bar made (1.25" OD x 0.25" wall) along with 575 lb/in (10.4 kg/mm) front springs and stiffest rear bar made (0.75" solid) with 325 lb/in rear springs (5.9 kg/mm) and still have a lot of front roll using street tires

race tires need some serious springs, Speedsource ran 800 lb/in using DOT-R tires, race slicks will need much higher ...
Thread Starter
Bigboy in a little car!
Joined: Nov 2004
Posts: 1,276
Likes: 7
From: In So Cal.. out in BFE... but in the good part... but not really by Cesar, Keith or Loren...
Yes Kwescott... thats why I need to check for the the next time we go out.
Crazy Team.
Crazy Team.
Thanks in advanced..
One ball, corner pocket
Joined: Apr 2004
Posts: 2,053
Likes: 1
From: Fontucky, right next to Patriotville
we're not professional racers....if we were, we would go through the time of customizing valving in the struts for a specific type of racing...
...the option that we do have is going with a strut that have adjustment capability. This would allow you to "fine" tune your suspension to your needs. Koni and Tokico are a couple of examples of struts that have adjustment capabilities (based on the strut model you select).
....there doesn't seem to be a "best" option, except if you stick with a lowering spring that advertises similar spring rates to stock.
...the option that we do have is going with a strut that have adjustment capability. This would allow you to "fine" tune your suspension to your needs. Koni and Tokico are a couple of examples of struts that have adjustment capabilities (based on the strut model you select).
....there doesn't seem to be a "best" option, except if you stick with a lowering spring that advertises similar spring rates to stock.
lol
I have the stiffest front bar made (1.25" OD x 0.25" wall) along with 575 lb/in (10.4 kg/mm) front springs and stiffest rear bar made (0.75" solid) with 325 lb/in rear springs (5.9 kg/mm) and still have a lot of front roll using street tires

race tires need some serious springs, Speedsource ran 800 lb/in using DOT-R tires, race slicks will need much higher ...
I have the stiffest front bar made (1.25" OD x 0.25" wall) along with 575 lb/in (10.4 kg/mm) front springs and stiffest rear bar made (0.75" solid) with 325 lb/in rear springs (5.9 kg/mm) and still have a lot of front roll using street tires

race tires need some serious springs, Speedsource ran 800 lb/in using DOT-R tires, race slicks will need much higher ...



