How about the many dyno pulls,test runs and spares? Ever consider there might be two cars to buy springs for? Do you make springs for P/S'ers? Just trying to get the facts.
There we go!!! I guess I just had to rattle your cage more than once, huh Mike?!
If you read my original post, I mention the testing and dyno pulls, Mike. But my example was worst case scenario of all four qualifying runs and all four rounds on every Sunday, which we all know is ridiculous and would likely offset the testing and dyno pulls, but I don't know.
No, we don't make any valve springs as of yet, but making springs is our business so it's not like it's hard. The difficulties associated with making valve springs has
nothing to do with the processes or materials. It's the design of the springs themselves and their ultimate application. Valve springs are nothing more than what we in the spring business run into
every single day. Engineers come to us with a design that is virtually done and say "put a spring here", and there is usually no room for a practical, low stress spring. These applications we're talking about are no different. For Pete's sake,
passenger car valve springs are overstressed! Most people think that springs in passenger cars last forever because they're not overstressed. However, depending on the application, most cars stop performing at peak power between 25,000 and 50,000 miles and a percentage of that loss is attributable to the valve springs.
High performance valve springs are made out of nothing more than super high tensile steel available to
anyone in the industry. In today's day and age, the thing that separates the men from the boys in mostly marketing. I hear all this crap over the past 5 years or so about "dual point coiling", "shot peening", "electropolishing", "down-feed grinding", blah, blah, blah. Some of these guys advertise this stuff as cutting edge, but that technology is old enough to vote for crying out loud. We all can get the same material, we all have good machines, we all have the ability or access to good post processes and we all have good people working for us. But guess what? The springs are still going to wear out fast in a Pro Stocker and sometimes even break. The envelope for which the springs needs to perform in is simply too small, period.
I'm still baffled by the cost. I would like to know exactly how many runs these guys are getting on their springs these days. I know what Reher and Maskin told me a few years ago, but I would like to know what the deal is right now and just what they're spending on these springs.
Sean D