So, I've done an LS swap project, and I've gone the "throw a turbo on an internally stock motor" route - but here's the first time I have tried a full engine rebuild. This is the fourth different slant six turbo combo I've tried. The first one was a K-car turbo and blow through carb, followed by the same turbo with EFI, then the EFI system with a much larger turbo. The last combination came to an end when a clogged oil pick-up and high RPM dyno pulls left me with a bit of rod knock. And a teardown also revealed damage to the engine block. See this thread for details.
I have several members of slantsix.org offer free or cheap parts to get the Dart project back together, and I took them up on an offer of a free engine block and two stock crankshafts. I also bought a used Comp cam and a set of Erson lifters.
So right now the block and crank are at the machine shop. The block was already bored 0.030" over, so it's getting a little more overbore. Piston options don't have much of a middle ground with slant sixes right now. You can go with basic cast pistons. Or you can go all out with a set of 7.005" H-beam rods (stock is 6.7") and forged pistons intended for something like a Neon SRT4 or 2.2 Turbo, or a set of Wiseco 10:1 pistons. I've opted for the cheap cast pistons here - from what I've seen, they hold up well when hit with a 100-150 hp shot of nitrous or a 10-15 psi boost level. There will also be some attempt at head porting.
Hopefully the final rear wheel horsepower should be significantly above the 120 hp the previous build put down at 5 psi of boost.
I have several members of slantsix.org offer free or cheap parts to get the Dart project back together, and I took them up on an offer of a free engine block and two stock crankshafts. I also bought a used Comp cam and a set of Erson lifters.
So right now the block and crank are at the machine shop. The block was already bored 0.030" over, so it's getting a little more overbore. Piston options don't have much of a middle ground with slant sixes right now. You can go with basic cast pistons. Or you can go all out with a set of 7.005" H-beam rods (stock is 6.7") and forged pistons intended for something like a Neon SRT4 or 2.2 Turbo, or a set of Wiseco 10:1 pistons. I've opted for the cheap cast pistons here - from what I've seen, they hold up well when hit with a 100-150 hp shot of nitrous or a 10-15 psi boost level. There will also be some attempt at head porting.
Hopefully the final rear wheel horsepower should be significantly above the 120 hp the previous build put down at 5 psi of boost.
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