Nice find! I had that exact car. It was parted out and scraped 😅

RyeDawg submitted a new DSM Profile :1G Street CarRead more about this vehicle here...

This past spring my balance shaft belt snappped and caused the timing belt to jump . All my valves got bent in the process. My pistons looked very similar to yours. I ended up taking a dremel and cleaned up each piston so that when the pistons got hot the thinner metal wouldnt heat up and chunk...

No one mentioned anything about the bolt you must put back into the case where the balance shaft tensioner once was. It will leak oil without it in place.

Vfaq has a great write up :thumb:http://www.vfaq.com/index-main.html

http://www.roadraceengineering.com/clutchandflywheeltech.htm

Check out the jacks transmission videos. Proper clutch adjustment is essential.

You'll know more once you drop the transmission like you said. I'd also check that clutch disk. I've had a similar situation where the clutch was grabbing right off the floor. The clutch disk was completely gone on the flywheel side. Not likely the case since you pulled the fork boot and peeked...

Megan racing also makes a shorter downpipe for a catalytic converter.:thumb:

Try a salvage yard?

I just built an 3" exhaust from my Megan downpipe back. I used a resonator and a vibrant street power muffler. It's reasonably quiet at idle and awesome at wot! Check out the vibrant street power. I know you already have a muffler but it's worth a look considering their straight through . Good luck

Use a new throw out bearing. Check fulcrum ball and clutch fork for wear.

You could test your wastegate to see if it's working properly.

Looks to be a slow boy racing ball and spring style boost controller :)