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08-12-2005 #1
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Edlebrock Performer IAS shocks? Any good
They sound like a good idea. Has any tried them?
I don't really need adjustable shocks ( Ok I'm cheap )
Are the Edlebrocks Worth the money?
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08-12-2005 #2
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They've been discussed a few times. A search for IAS shocks reveals:
https://www.pro-touring.com/forum/sh...ght=IAS+Shocks
https://www.pro-touring.com/forum/sh...ght=IAS+Shocks
08-15-2005 #3
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Mfr information describing how they work can be found in the links off this one. The stuff of interest is related to how the inertia valve distinguishes between wheel motion and chassis motion. Based on those pages, I suspect that Edelbrock/Ricor's inertia valve affects rebound damping only. IOW, it makes the shock sort of a two position single adjustable that you don't manually adjust.
Does anybody know what range of spring rates they're intended to work with?
Norm'08 GT coupe, 5M, suspension unstockish (the occasional track toy)
'19 WRX, Turbo-H4/6M (the family sedan . . . seriously)
Gone but not forgotten dep't:
'01 Maxima 20AE 5M, '10 LGT 6M, '95 626, V6/5M; '79 Malibu, V8/4M-5M; '87 Maxima, V6/5M; '72 Pinto, I4/4M; '64 Dodge V8/3A
08-15-2005 #4
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They're designed to work with the Edelbrock springs (made by Eibach). I'm not sure if the Edelbrock springs have the same rates as the Eibach branded springs though.
Originally Posted by Norm Peterson
When I was calling around for springs rates, Edelbrock was about the only company I didnt call. I just assumed they were rebranded Eibachs.Dustin
08-15-2005 #5
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08-19-2005 #6
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The Ricor valve does work on rebound only, these IAS have been the worst perfomance shock I've ever used! to qualify my opinion I'll give you a description of the behavior. When going across a dip, lets say, like before a bridge, the compression is way to harsh and rebound is almost non existent, the chassis goes well above static ride height like it ate a box of viagra. I don't need to tell you what that does if you are cresting a hill in a turn. The first time I nailed a curve w/some stutter bumps it almost skated backwards! It took up both lanes on a rural highway and moved laundry day up, as my shorts needed cleansing! Now this would be a dubious statement if I didn't drive this road daily, I was easily able to average 5 mph faster through this exact same stretch with leaking factory Bilsteins. Okay so I have a zq-8 s-10, but it is rather well tuned with adjustable rear bar and such, but my brothers 87 Cutlass GT has the same shocks and the same problem. Edelbrock seems to have followed the pattern that most do by adding comression damping, There is just no way any kind of REAL driver drove this setup and stamped it OK for production.
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