yes, folks that browse both forums I did just copy/paste this from my other thread. I wanted those on here who don't use the other forum to see what I'm working on.
I spent the day building a set of B13 coilovers. I have always ran progress coilovers on my B13 and love them. However, for my 4-door currently in the works which will only be a street car I wanted something that could go much lower than the progress coilovers. Then I decided why not make a coilover that will out perform my progress coilovers when at proper ride height, but allow me the option of dumping the car if i want for aesthetic purposes.
So after taking apart the Progress units and testing them on our Roehrig shock dyno we learned that they are a very good damper. They out perform koni, stance, ksport, bc racing, and a few other brands by a long shot. To out perform the Progress units I needed something special so I went with a Fortune auto 500 series digressive monotube damper that is 30 way adjustable and has a huge 57mm piston. These dampers dyno better than than anything else in the price range so they are the heart of my new coilovers.
I got the prototypes mounted up tonight and the fit is perfect using my ground control plates in the front and progress top hats in the rear. Fortune will be making the front pillowball camber plates for this setup and i will use those so I can keep the gc plates on my track car. also making aluminum rear top hats with urethane bushings for the rear. btw im running higher spring rates too, My progress springs are 350/250lb the new setup is about 450/335lb.
This is a one off setup and is not a production application but if you guys are interested they have agreed to reproduce this at a special group by price for 10 or more buyers. But we will cross that bridge later if enough people contact me interested. And no I do not work for fortune auto they are just located in my home town and i have had lots of experience with their products. I'm sure the owner would consider becoming a vendor and offering b13/14/15 coilovers if the demand was high enough, they stock s chassis currently too.
here is a dyno of the 500 damper they also have a new 510 damper that is even better but overkill for my purposes.
