Kind of an odd question. I am planning on running race valved Koni yellows with high rate Ground Control coilovers. This will be on a track only car.
I want to know if I can buy a regular used set of Koni yellows (not the ones made to work with GC's) and have them revalved and fitted to work with GC's? I know a guy that will cut me a good deal on his used shocks, but they are not made for GC's.
As far as I know it's not the Koni shock thats designed for the GC. It's the GC that fits on the Koni. There's 2 types of sleeves for the GCs. One that works on normal shocks and one that comes with an adapter to mate with the Koni. You wouldn't have any problem buying used Konis and have them revalved. You'll need to contact GC to get the adapters to fit the Konis though.
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Originally Posted by Sonik_Fury
whatever essay I just watched the new Fast and Furious so I know what I'm talking about.
Price is about $130 each shipped ($100 to revalve plus parts and shipping), but it varies depends on what parts might need to be replaced while rebuilding.
Huh, thats about what I paid for the konis in the first place. Oh well, they have about a year or two of service before the lude goes track car, so i'll ride stock valving for a bit before jumping up.
Huh, thats about what I paid for the konis in the first place. Oh well, they have about a year or two of service before the lude goes track car, so i'll ride stock valving for a bit before jumping up.
Yeah, most people freak out at the price (except people who are using to racing), but even with the cost of revalving it's a great priced race setup. It really does change the shocks.
Some people (even autocrosser) revalve their shocks a couple times a year.
Koni's are good shocks but the problem with them is that very few people are privileged enough to rebuild them. If you're making a race car then I would highly recommend running Bilstein's and have them valved to match the spring rates you are running. As for spring rates I would recommend running 600F 800R.
Koni's are good shocks but the problem with them is that very few people are privileged enough to rebuild them. If you're making a race car then I would highly recommend running Bilstein's and have them valved to match the spring rates you are running. As for spring rates I would recommend running 600F 800R.
There are 3 places I know of, Koni NA (who I use and recommended), ProParts, and TrueChoice.
I don't know how many places rebuild Bilsteins, I've heard you can rebuild them yourself, however, some people to rebuild shocks for a living seem to mess them up or not install things correctly. Bilstein rebuilds are less expensive from what I have seen though.
I can't recommend Bilstein because I haven't used them or compared the two, I just know Konis worked great on my Prelude and on both of the championship Civics I've run.
Also, 600F/850R would be a great start for a racecar, as long as you have properly valved shocks, which isn't any off the shelf model for the Prelude, the shocks would have to be custom valved for those rates.
JHall250 - Do you race a Prelude? What organization and class? Good to see more people running them...
Koni NA quoted me $140 each for the revalving, plus $72 each if I wanted them shortened. Quite expensive, but well worth the money on an all out race car. I wouldn't recommend this to anyone unless you are running a full cage with R-Comps on a race-only car.
You basically pick your spring rates and then tell Koni what rate you plan on running. They build the shocks accordingly and send them back.
You don't need to have a fully cages car OR be on R-compounds to run this type of shock. It has nothing to do with tires or car stiffness, it has everything to so with the spring rates you want to run. A cage is something you add if you are making it a track car, no doubt, but you are not going to add a cage to a autocross car unless it's an open top car in a mod/prep class.
I ran revalved dual adjustable shocks on my STS autocross car. If you want to give the Prelude a serious run in DS on R-compounds you are surely aren't going to add a cage to the car.
You don't need to shorten the shocks in the back. You could shorten them in the front, but you might likely get away without shortening them. I had my Koni Sports shortened in the front and rear, which worked nicely, but I didn't have to shorten the rears (they will almost never bottom out on a track car due to the spring rates used).
I also don't have experience with Bilstein, but I do know that Konis (Sports, 3011s, and 2812s) work very well on the Prelude. It all depends on how much you want to spend.
As for rates, I run 750 front and 950 rear with very good results. A good friend of mine that also races in a Prelude with me used to run 750/950, but he's going to try 750/1200 at the next event. IMO, the rear rate is a little extreme, but he's trying to get more rotation out of the car.
On a dual purpose car, those rates are likely too high, but somethinng like 600/800 as mentioned would work nicely.
I haven't checked this forum out in a while. To answer Mugenlude's question I take my car to the track but I am looking into getting a CRX as a competition car. I run custom Koni's shocks, which are actually OTS sport shocks that have a 1 inch shorter body and have compression adjusters built into the bottom, and Ground Control's with 600F and 700R along with the Progress rear sway bar. This car is my daily driver/weekend fun car.
My plan is find a race ready CRX and start racing NASA but my budget isn't large enough yet.
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