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Characterization of the OE Suspension Springs

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Characterization of the OE Suspension Springs

Old 09-12-2016, 06:49 AM
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Originally Posted by lovegroova View Post
Originally Posted by davidc1' timestamp='1473624109' post='24059670
Thanks for the links. It was interesting reading.

So, the first article I discount because the author says the car has had the i-VTEC engine since at least 2001, and that the top goes up and down in 6 seconds. Geez.

Reading the rest of the article it does indeed appear that the Type S suspension in not the same as the CR like I thought. A couple articles seem to imply it's stiffer than the base suspension and a couple imply it's the same as the 08 base suspension.

A couple articles imply that the suspension went though 3 changes in Europe, although in the US it was a continuous changes pretty much every year.

Regarding the leaking, if you call the bonnet what we call the hood, and you call the hood what we call the roof, then I understand what he is saying. I though the previously mentioned article the guy was saying it leaked where the A pillars met the hood, meaning around the cowel.

And I was all excited to see the link to the english version of the accessory catalog, because then I'd be able to look at all those strange things available in Japan. Alas, the only stuff I saw in the catalogue that isn't available in the US was the cargo nets behind the seats, and the one piece floor mats.

So, it looks like those Modulo Type S shocks are NOT the ones that are in the Japanese Type S, because nobody in the article mentions them being adjustable. But, it does look like the shocks were an official Honda option.

Thanks again for the links though.
You're welcome.

It is worth noting that British car journalists will basically repeat whatever is in the press pack. The best example of this was the assertion that the Z4 had the fastest folding roof, which we know is not the case (watch the Top Gear comparison on YouTube to see Hammond bemoaning "that's what it said in the brochure").
Given that several magazine's mention the Type-S = 2008 OEM in their articles, I suspect that's what Honda told them.

And yes, the bonnet is the thing that covers the engine, the hood is what covers the passenger compartment, sometimes also known as the roof.

AFAIK, the modulo shocks (and wheels) have been available for a long, long time.
Too bad the yen/$ exchange rate isn't better. We could buy some of that weird stuff in the Japanese accessory catalogs
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Old 12-20-2016, 12:07 PM
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This thread is full of absolutely fantastic information. Just finished it up and scored a MY00 front sway bar for $55; should be fun to play with
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Old 01-24-2017, 04:03 PM
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So I keep coming back to this thread. I want better understand how wheel rate for springs and wheel rate for swaybar combine to effect total wheel rate (obviously this is cornering wheel rate, as swaybars don't contribute significantly during squat like from accel or decel).

In the thread below SakeBomb Garage has measured the spring and swaybar motion ratios:


The relevant info from that thread:

Damper motion ratios are: 0.589 Front and 0.578 Rear
ARB motion ratios are: 0.492 Front and 0.343 Rear

Wheel rate = Spring Rate * MR^2

Front Wheel Rate = Front Spring Rate * 0.347
Rear Wheel Rate = Rear Spring Rate * 0.334
(because .589^2=.347 & .578^2=.334, its easier to use these values, and create above formulas)

So for swaybar its:
(Is below correct, I don't know if maybe swaybar rate is doubled since both ends of bar bend during load transfer)
Front Wheel ARB Rate = Front Swaybar Rate * 0.242
Rear Wheel ARB Rate = Rear Swaybar Rate * 0.118

Now here is TwoHoo's spring rate chart: (with new columns I added for the Wheel Rates)

So, armed with motion ratio and spring rates, we can use the wheel rate formulas above to determine wheel rate for springs for each iteration in chart, and wheel rate for swaybar for each iteration. I've filled these in in chart above. But how do you combine wheel rate for spring with wheel rate for swaybar, to determine the Total Wheel Rate? To fill in the last two columns in chart?

Is it simply Wheel Rate for the spring + Wheel rate for the swaybar? When I try that it doesn't line up with TwoHoo's weight transfer charts published further up in this thread. What is the formula? Want to fill out the rest of this table.

Last edited by Car Analogy; 01-24-2017 at 04:13 PM.
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Old 02-11-2018, 05:24 AM
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Old 04-17-2018, 12:28 PM
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Default Inquiry about non racing suspension

I have an 02 AP1. Need advice on what brand of suspension system to get that is out of the box install. I do not do track, this is more day to day driving and I do not know where to start. Research I have done so far keeps showing racing style upgrades.
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