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Go Back   SR20 Forum > Main Forums > Chassis & Suspension



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Old 12-09-2007, 08:59 PM   #1 (permalink)
JKho
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Interpreting shock dyno

Hi everyone,

Can someone help me interpret this shock dyno graph?



They are from a company called F2 and are supposedly big Honda supporters but are expanding their lineup into Nissan's, Toyota's and others. The stock springs are 4kg fronts and 6kg rears and are 18 way adjustable.

I just have no idea what the shock dyno is saying. Is this good/bad?

Thanks.
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Old 12-09-2007, 09:53 PM   #2 (permalink)
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Shock dynos aren't quite as easy as car dynos to interpret.

Basically, as the chart goes to the left, the slower the shock is moving. So the left side represents how stiff it is when you're transitioning into a corner, and the right side represents how stiff it is when you hit a bump.

The bottom half represents the compression stiffness, The further it goes down from the middle of the graph, the stiffer it is when the shock compresses.

The top half is the rebound stiffness. The further up you go from the middle the stiffer it is as the shock extends.


From what i can see there, rebound is about as stiff as an AGX set to 4/8 and it gets considerably stiffer than an AGX as the piston speed increases.

The compression is a *lot* softer than an AGX.

I'd imagine these would suck on the street with the rebound being that stiff at high speeds. It would probably plant the car on the bumpstops if you were on a rough road or something.
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Last edited by MCarp22 : 12-09-2007 at 10:37 PM.
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Old 12-09-2007, 10:14 PM   #3 (permalink)
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To elaborate, here's the same shock compared to a an AGX and a Koni Sport (yellow):

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Old 12-09-2007, 10:36 PM   #4 (permalink)
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Quote:
Originally Posted by JKho View Post
They are from a company called F2 and are supposedly big Honda supporters but are expanding their lineup into Nissan's, Toyota's and others. The stock springs are 4kg fronts and 6kg rears and are 18 way adjustable.
A little context may help us interpret this for you. Which chassis is this for, and is that a front or rear damper?
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Last edited by reverm : 12-09-2007 at 10:41 PM.
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Old 12-09-2007, 10:54 PM   #5 (permalink)
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Originally Posted by reverm View Post
A little context may help us interpret this for you. Which chassis is this for, and is that a front or rear damper?
Judging by the heading there it's a 1st generation MR2. Couldn't find anything to suggest front or rear though.
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Old 12-09-2007, 11:09 PM   #6 (permalink)
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Is the shock even adjustable?
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Old 12-10-2007, 12:54 AM   #7 (permalink)
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Originally Posted by 98sr20ve View Post
Is the shock even adjustable?
They're supposed to be "18 way adjustable" but the dyno only shows a single setting.

*edit* a friend of mine says when he was researching colovers, some of them really were "18 clicks and no adjustment" o_O

Last edited by MCarp22 : 12-10-2007 at 01:15 AM.
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Old 12-10-2007, 07:36 PM   #8 (permalink)
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Just from looking at the dyno it's nothing to get excited about. Dyno's only tell you a small part of the story. Very small part. Proof is in the results. We have good options already for all our cars.
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