Yes the insulation adds weight but I melted and pair if tennis shoes driving one of my old hotrods so there so there needs to be some heat shielding. This was put in years ago before the project was side tracked and the car was just a Promod build. Yep I started to play with Porsche for a number of years and the car was just sitting unfinished. Then I started to run SCCA Solo II with the Porsche and before you know it the old stalled project is now being built for Cam T class.
If you look you can see the Holley HP controller mounted to the firewall to move the weight back plus keeping it cooler. There is a Classic air A/C box next to it That is lighter but with the Sanden compressor it adds a little weight. With this in mind that is why my target weight is between 3300 and 3400 lbs and not lower. The car started life weighing between 3700 and 3800 lbs and the first 200 lbs was easy and I'm now looking for the next 200 lbs. I'm weighing parts and using the lighter one. I'm just not trying lighten the car but move the weight around for a better corner weight balance.


Edit: Both of the weight loss up front and high up and I moved the weight down low so a win with comfort.