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We're on a similar wavelength. I looked at several C5 tanks on ebay yesterday to see if that would be a workable option. Lots of availability, but I need to still get some packaging info. The shape is certainly odd, so I still would need to get some dimensions and internal capacity, and the tank...

Running out of better and easier weight reduction ideas, so I'm looking at two items this winter. 1) Going to try to locate a used C3 fuel tank for modification. I believe I mentioned this before, but I'm thinking of cutting off the left half of the tank, and welding in a new sidewall just to...

$450 is a bit out of my budget, but I certainly would love to take more weight out of the left side of the car. I'm presently using seats out of a '79 Corvette (Thank you again Karsten!). IIRC they are 12# lighter each compared to the original '69 seats, and heaven knows, have significantly more...

I like the headlight bucket method. I've wanted to replace my flip up headlights with fixed rectangular ones for years. I pulled the whole setup out of a late 80s/early 90s Oldsmobile that used the smaller-than-usual rectangular headlights. I then wanted to cover them and the bucket in easily...

I'm definitely interested in your results. (y)

At a minimum I need to do that. (y) Right now there's vented (atmospheric) pressure on both sides of the actuator diaphragms, so there's nothing additional trying to help the springs keep the headlights down. I believe I have a non-GM check valve in my hose collection that I can plumb into the...

Yesterday's track day went well. Nothing broke or got scratched up. A few conclusions I came to during the day: 1) I need to brake later. I'm still trying to get accustomed to how much quicker the car decelerates with the decreased weight. 2) The car is very neutral through the corners, with a...

Thanks. (y) I was probably braking for the 90* right hand corner just out of the picture.

Had a good time at the last track day a few weeks ago. The car ran great, the extended belly pan length didn't break, and the air dam extension (downward) got just enough scratches on it to let me know that's as low as I want to go for now. The next track day is this Sunday. For this weekend I...

My car has those same openings. I haven't had engine overheating issues, so I've been incrementally blocking off the air entrances to the radiator in an effort to reduce the amount that eventually finds its way under the car, increasing lift and drag. I have both front outer grilles blocked off...

I'm not following what that was (under the engine support). Are you referring to something other than the air dam under the radiator support on some other cars?

That's pretty much the exact setup I've been running for several years. (y) Last week I added an additional one inch lower strip to it for track days. It comes off with six bolts for street use. Behind the airdam I have about four feet of Lexan bellypan to discourage air from just balling up in...

IIRC the stock fuel tank in my car is 16 gallon capacity (and twenty something pounds empty IIRC). I've been kicking around for a while the possibility of fitting an 8 to 10 gallon tank from a junk car somewhere and adapting it to mine. The smaller tank should be lighter and smaller in size...

Lots of interesting items being shown and discussed. I'm enjoying this thread. While I'm trying to figure a robust enough design for the cowl area aero flow spoiler, I've added a couple more feet of undertray to the car (about four feet total back from the Pace Car spoiler) and looking at...

An item I've been interested in trying out, and had mentioned to Jim in passing quite a while back, is some sort of small cowl structure (preferably in clear Lexan) to cause some airflow stagnation at the base of the windshield. My goal would be to increase the air pressure at the windshield and...

"Canned ham trailers". I had never heard that phrase before, but it makes perfect sense to me. 😀

Yeah, everything from the transmission crossmember back is aluminum, with stock looking polished aluminum tips. (The S bend hotter pipes from the header collectors to the trans crossmember area are still steel.) They're slip fits at the crossmember area, but the mufflers are attached to the rear...

If I find myself with excess free time I might think about making a pair of aluminum glasspacks for track days. The current aluminum mufflers weigh 10# each (compared to 16# each for the previous steel turbo mufflers), and the glasspacks might be in the 6# each range. For all the effort I'd...

Excellent suggestion. (y) Until I figure out a satisfactory way to route coolant lines past/rearward of the halfshafts, I might look into trying to package a small radiator into the passenger fender, near the louvers (moving weight rearward and to the right), and then finding a narrower than...