Suspension & Brakes Theory, alignment, spring rates....

Coilover Top Hats

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Old May 2, 2011 | 09:57 AM
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Outlaw-Hondaz's Avatar
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Default Coilover Top Hats

I am going to buy a set or koni yellows w/ ground control coilovers and was wandering should i pay another 100 bucks for 2 top hats?

Car: 1997 Honda Civic Hatch w/ITR swap, Daily Driver

Overall Question: What is the benefit of having top hats? What spring rates should I go with? 350/380lbs?
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Old May 2, 2011 | 10:37 AM
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Default Re: Coilover Top Hats

top hats are necessary if you are going to go low. 2" drop should be fine with oem top hats.
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Old May 2, 2011 | 10:51 AM
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Default Re: Coilover Top Hats

any suggestion with spring rates? i heard if u got a swap motor u would need at least 300-450lbs for the front and 450-500lbs for rear
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Old May 2, 2011 | 10:52 AM
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Default Re: Coilover Top Hats

Top hats can be useful when the car is lowered to the point where the shock is too close the the limit of its travel, reducing effectiveness. they will give you about another inch of shock travel.
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Old May 2, 2011 | 10:53 AM
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Default Re: Coilover Top Hats

Originally Posted by Outlaw-Hondaz
any suggestion with spring rates? i heard if u got a japan swap motor u would need at least 500-550lbs
Eh b18 are not too much more than D's. A little. Pick the rates based on what you use the car for. For street use, 400-500 is a good number for a stiff, but livable ride. its pretty much near the upper end of street rates for most people.
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Old May 2, 2011 | 10:59 AM
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Default Re: Coilover Top Hats

B's really aren't much heavier then the D's. And if you removed A/C,P/S you are very likely the same, if not a pound or 2 heavier.

For a daily I would be looking in the 450f/350r range. 350lb is a decent spring to have out back, you'll definitely feel it, but it wont be back backing. Getting into the 450lb in rear and you are really starting to effect ride quality.

Lower then 2'' top hats are worth looking into for the front, the are not needed in back.

How low are you planing to be? Are you only DD'ing or, with some autoX mixed in?
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Old May 2, 2011 | 11:09 AM
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Default Re: Coilover Top Hats

Originally Posted by 98civdx
B's really aren't much heavier then the D's. And if you removed A/C,P/S you are very likely the same, if not a pound or 2 heavier.

For a daily I would be looking in the 450f/350r range. 350lb is a decent spring to have out back, you'll definitely feel it, but it wont be back backing. Getting into the 450lb in rear and you are really starting to effect ride quality.

Lower then 2'' top hats are worth looking into for the front, the are not needed in back.

How low are you planing to be? Are you only DD'ing or, with some autoX mixed in?
For sure DD and a little autoX in the near future, I want atleast 2" in drop. Thanks for all the info guyz!
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Old May 2, 2011 | 11:31 AM
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Default Re: Coilover Top Hats

Do you have sway bars?
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Old May 2, 2011 | 11:34 AM
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Default Re: Coilover Top Hats

Originally Posted by 98civdx
Do you have sway bars?
no, do i need it?
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Old May 2, 2011 | 11:36 AM
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Default Re: Coilover Top Hats

Not really, but they are good to have.
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Old May 2, 2011 | 11:46 AM
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Default Re: Coilover Top Hats

Originally Posted by 98civdx
Not really, but they are good to have.
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