Another small block turbo early valiant

V8-valiant said
Ok guys it’s been quite some time, I’ve been getting a little work done on the valiant. I pulled the passenger side head to find a bad head gasket and a couple pistons that didn’t like all the detonation. ‍♂️ I put a different gasket on it and back together just enough to drive it on and off a trailer for our move out of state. We barely got all our boxes put away and started pulling the engine out. Had a couple plans to get it back together on a budget and beat on it without concern but they didn’t work out. At this point I’ve started a new engine build with a Molner stroker crank and custom pistons, finally got the pistons Friday so I can drop it all off at the machine shop for them to get going on the engine. I hope to have it back together to enjoy a little before the weather hits here.

View attachment 1715590378

View attachment 1715590379

View attachment 1715590380

View attachment 1715590381

View attachment 1715590382

View attachment 1715590383

View attachment 1715590384

WOW that got serious real quick. Here are the things i have learned along the way. Single turbo cars still need TWO waste gates. Think about it. Each bank gets a wastegate on a twin setup. Since you put a single turbo on it there are still two banks of exhaust moving air. You need to add another waste gate for the drivers side header. The closer to the collector the better because the exhaust is at its hottest and its more compact and a given hole with flow more air with more temp. Secondly, without knowing what boost and where you AFRs are you should never do a full pull. The burned up pistons are from prolonged full throttle under boost. This was an expensive lesson in comparison to a dyno session where you can control what goes on and for how long.