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Old 04-30-2014, 07:35 AM   #1
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Default Suspension Spring Question... I have been searching forever

I will be the first to say it.. I hate it when people don't search, however I just can't find any answer that suits my question best.

I am looking for a spring set for my TRF shocks. I would like to have some different spring rates so I can better match conditions. I will be racing asphalt this summer and will be running the Tamiya TCS race in July. I would prefer Tamiya parts so i can use them in the TCS race. Any help would be greatly appreciated.
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Old 04-30-2014, 07:43 AM   #2
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I will be the first to say it.. I hate it when people don't search, however I just can't find any answer that suits my question best.

I am looking for a spring set for my TRF shocks. I would like to have some different spring rates so I can better match conditions. I will be racing asphalt this summer and will be running the Tamiya TCS race in July. I would prefer Tamiya parts so i can use them in the TCS race. Any help would be greatly appreciated.
Tower Hobbies has spring sets from Tamiya.
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Old 04-30-2014, 07:55 AM   #3
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Yeah I just don't know which ones would be appropriate. I don't know if I buy the short springs etc.... and then do i really need a full selection of rates or are there some that would be better than others. I see they sell springs in pairs etc...
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Old 04-30-2014, 08:50 AM   #4
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Just buy a set of hard/medium/soft and adjust rate by preload. There's more adjustment in preload than there is in the entire range of springs. That's the idea behind them selling in such sets anyway.
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Old 04-30-2014, 09:16 AM   #5
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Just buy a set of hard/medium/soft and adjust rate by preload. There's more adjustment in preload than there is in the entire range of springs. That's the idea behind them selling in such sets anyway.
preload changes your ride height ...
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Old 04-30-2014, 09:19 AM   #6
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Originally Posted by legacyruss View Post
I will be the first to say it.. I hate it when people don't search, however I just can't find any answer that suits my question best.

I am looking for a spring set for my TRF shocks. I would like to have some different spring rates so I can better match conditions. I will be racing asphalt this summer and will be running the Tamiya TCS race in July. I would prefer Tamiya parts so i can use them in the TCS race. Any help would be greatly appreciated.
You will find a lot of GOOD info here : http://www.reflexracing.net/RSD-Univ...art_ep_58.html

springs in the 14lb range are a good place to start with
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Old 04-30-2014, 11:01 AM   #7
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preload changes your ride height ...
True.
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Old 04-30-2014, 01:56 PM   #8
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Yeah I just don't know which ones would be appropriate. I don't know if I buy the short springs etc.... and then do i really need a full selection of rates or are there some that would be better than others. I see they sell springs in pairs etc...
Most Tamiya touring car setups are based on the "Hard On-Road Tuned springs" #53440. You'll also see people using single-colour versions of the springs that have been limited edition parts at various times over the years but they are the same rates.

If you are running a Mini then people use the Short springs.

If you don't have to run Tamiya parts most people now run HPI or Yokomo springs on the TRF shocks (with the large diameter retainers), these have a much finer difference between rates.
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Old 04-30-2014, 04:11 PM   #9
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preload changes your ride height ...
Not if you lower it back down with the droop screws HA!
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Old 04-30-2014, 04:18 PM   #10
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Not if you lower it back down with the droop screws HA!
good luck with that setup
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Old 04-30-2014, 06:31 PM   #11
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preload changes your ride height ...
And has no affect on spring rate with linear springs...
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Old 04-30-2014, 06:52 PM   #12
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And has no affect on spring rate with linear springs...
yep
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Old 05-03-2014, 04:16 PM   #13
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And has no affect on spring rate with linear springs...
No change on Spring rate as long as changing the ride height with preload does not compress the spring any more than when you start. IF it further compresses the spring, you in effect change the spring rate too because you would need a higher spring rate spring of the original length to get the same stiffness as the compressed spring. Same with linear or progressive springs.
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