C4 Bushings
Hello!
I've already the stock bushings in my 1992 Vette. Now it's time to change it. I've installed a KW Automotive Coilover suspension kit (instead normal shocks with Leaf spring). There are different types of polyurethan bushings kits for the C4. I find black and red one from Prothane and Energysuspension. Both manufactures means the hardness of both color types are the same. Don't know what they are using for - street or race? Powerflex built different hardness with color code: yellow for street, purple for performance and black for race. But they don't produce bushings for the Corvette. Do you know other manufactures. I'm looking for a street version. What woul be your experience? The KW coilover is very strong/hard for street driving and i don't want to get the car more harder than yet. Thanks for your opinion. Best regards! Juergen |
Both high energy and prothane sell street/ track urethane bushings, the color has no meaning. Red is noticeable or "showy", black doesn't stand out snd may pass for stock at a glance.
i have prothane they do add to a rougher ride and noise on irregular surfaces. |
The black bushings from Energy Suspension are graphite impregnated. |
There is a new offering that just came out this year. They are a bit more pricey than the urethane bushings. The company that makes them is out of Australia and supplies bushings for lots of autos. The companies name is SuperPro. I found it best to look at the Australian (home company site).
https://superpro.com.au/ https://corvettesalvage.com/product/...kit-1984-1996/ https://corvettesalvage.com/product/...set-1984-1996/ Summit Racing is carrying them, not for C4 Corvettes though. At this time there are only 2 businesses in the US that have them. I found them doing some searches one evening. (the original company and then found out that another place I deal with is associated with the 1st and is carrying them for the same price and shipping, ie: free). Super Pro states that their warranty is: These bushings carry a lifetime guarantee from SuperPro, the largest performance bushing manufacturer in the world Watch how easy they install in the dogbones |
Talked to this guy. Bought his kit. Have yet to get them installed.
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Originally Posted by juergenc478
(Post 1598116511)
Hello!
I've already the stock bushings in my 1992 Vette. Now it's time to change it. I've installed a KW Automotive Coilover suspension kit (instead normal shocks with Leaf spring). There are different types of polyurethan bushings kits for the C4. I find black and red one from Prothane and Energysuspension. Both manufactures means the hardness of both color types are the same. Don't know what they are using for - street or race? Powerflex built different hardness with color code: yellow for street, purple for performance and black for race. But they don't produce bushings for the Corvette. Do you know other manufactures. I'm looking for a street version. What woul be your experience? The KW coilover is very strong/hard for street driving and i don't want to get the car more harder than yet. Thanks for your opinion. Best regards! Juergen Polyurethane is fine for street use, certainly much better than 20 or 30 year old rubber ! Ive got Poly, rubber, rod ends, and duralum in my suspension and dont have any issues with excessive harshness from any of them, but I guess thats a personal thing. |
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