Long term living room project, Looking to build a 10k rpm 3sgte Options

[Neon90424]

Since i have pretty much completed my gt four engine wise. machined and head kit also installed. I feel like building a 10k rpm engine with a 3sgte. I was looking at 3sgte's and I have decided to go with the newer ST215 engine since I have found them cheap on Ebay for 1k, and have it shipped by boat to PY. Going to buy an engine mount and set it up in my living room.

I figure the side intake manifold is better flowing than the 3rd gen and COP system to be nicer for a high rpm flowing engine.

Im looking for advice and tips. My plan goes as follows.

Buy and bring the engine.

Major tear down with about 100 ziplock bags and catalog it.

Clean it completely. turn the pistons and conrods into some sort of table or ashtray or shot glasses.

Take the head apart. polish it. have it machined for .5mm over exhaust valves and 1mm over intake valves.

looking to go shimless bucket. TI retainers and BC valve springs.

machine the crank lightening it up as much as possible without unbalancing it and compromising its strength.

eagle rods and cp pistons. acl bearings.

maybe make a custom aluminum oil pan? I need advice on the oil pump and flow for this engine.

I will set up a nice Injector dynamics based fuel delivery system that can handle the injection speed for 10k rpm.

polish the intake manifold runners...


I need True and false advice. I read that the oil pump the st215 engine has is higher flowing and water pump as well.

the head has better flow and the manifold as well... The exhaust manifold and turbo is going to be sold.

This is going to be a 400-500 hp engine. the donor car is still not decided to me as I will complete the engine first and I will do this real slow say a year or 2 So i might pick up and ST185 and drop this in.

thoughts ideas advice? flame?

[match220]

If you are going to try for 10k rpms, then fuel delivery should be a main concern. I thought about running dual injectors on each cylinder, mainly so I could use stock injectors for cheap, but also to prolong the injectors by not pushing them to their max. Just lengthen their dwell time at higher RPMs, you would have twice the time to do it since the injectors would be working at half the normal rate. It's pretty easy to set it up in the Autronic SM4, you just configure the engine as a v8 instead of a 4 cylinder and the two injectors on each cylinder will take turns firing on each revolution. And running the individual coils won't change anything because the computer can be configured to run a wasted spark setup (how a v8 would be configured if it has only 4 coils with two plug wires off of each one). For coils I used 1.8T Jetta coils, but some years were bad. 00/01 coils are the better ones, after that they keep failing. I wouldn't mind helping you if you get an Autronic SM4 ecu to run it, it has to be an SM4 though, not SM2 or SMC. I'll even email you my wire diagram that I made that shows you what wires to connect on the autronic to what pins on the sensor plugs, but it only applies to the SM4. A side effect of running the dual injector setup is the tach will be cut in half, since the Autronic ecu will see two revolutions as one revolution. So your 10k RPM limit will be hard to explain as you have trouble hitting 5k...then 5.5k..haha. And for your two injectors per cylinder to be bolted in, you will have to look into having an intake manifold machined to accept the second set of injectors. That's how I would do it..but there are other ways...less expensive ways. Dual injectors would rock though!

I'm planning on putting another youtube video up tomorrow on the progress of my car, I'll touch on some sensor wire-ins a little bit. The Autronic only needs TPS, IAT, Coolant Temp, Timing signal (I used an old distributor), and IACV to work, I also wired in a wideband o2 though.

I would imagine since you have a 10k rpm goal then price isn't an issue?