Great info. Thanks.
Removing the top cover of the air box and adding additional cool (maybe rammed) air into the top wouldn't be too difficult. Probably biggest task would be filtering that additional air, but sounds pretty doable. Thanks for the idea. 4 HP would be noticeable.
Degreeing the cams - I'll do a search in here for more info.
When I talked to the tech guy at S&S Headers, he knew I wanted power at the top of the RPM range. When I said I was considering short (16") primary tubes he said it would cost me horsepower (he didn't say how much). That's when I decided to wait until after the next bend to go from 4 tubes into the collector. I figured I'll be at lower RPMs some of the time, so better to have the header optimized for lower than for something past my redline.
If I had to choose between, say, 18" and 29" primary tube lengths, which would you choose?
There's a good chance I'll redo the header this winter, but I can't spend too much time on any one thing or I'll never get to the track. I know I'll have a few issues to work out, so I want to get them out of the way as soon as possible so I can tune the chassis and get the car up to speed.
You know, now that I'm sitting here typing (when I should head back into the garage :-), seat time is probably going to help my lap times more than a HP or 2 ... :-).
When my brother had his 10r dynod, he got at least 4 more hp just by removing the lid off the box. We don't run it that way, but we've known for a long time that a larger airbox would help.
You will most likely need to remove the motor from the chassis. If you can get a degree wheel on the timing side you might be ok. Do a search on cam degreeing for details, but its a no money required mod - well, other than some gaskets if you take the starter covers off to turn the crank.
Dwarf car guys live in a different world. Like you said, we care about top end Hp, so 30" is way too long. Shorter would be much better for you.
Race cams would be an illegal mod for this class. Also a race ecu would be verboten. I figure you could get away with the thin gasket but other than that its hands off the internals.
There are some DSRs that are under 15K. Almost all are motorcycle powered. Most popular is the GSXR.