I'm an old time Pontiac nut. Pontiac made a 194.5 ci 4 cylinder back in '61 to '63. It is cast as half of a 389 engine.
It uses a special 180 degree crank otherwise it uses all of the V8 parts. Rods, pistons, head etc etc. Turbocharged they can make a lot of power. I plan to build the engine to withstand over 700 hp , then use an M90 blower at first for low end and off idle response. Then look into a turbo to blow thru the blower. If I can't reach my HP goal that way I'll pull the blower and go straight turbo. I want to drop this into a mid '80's Vette or a third Gen Firebird. Prefer a GTA. But if I can score a good '89 -'91 6 speed Vette, that would be my choice. If I'm forced to go straight turbo then I'll change over to an automatic for spooling.
The legendary Mickey Thompson played around with these motors way, way back in the day. He set many salt flats records, some still stand today.
With the availability of many various aftermarket performance heads now, the potential for big horsepower had never been better. They are heavy but an aluminum headed 4 cylinder wills till be lighter than an aluminum Chevy small block. Plus, with the drivers side cylinder bank completely missing, it opens up all kinds of room to hang blowers and turbos, or both. It's something I've been contemplating ever since the '70's. Now I'd like to take a shot at it.
I'm a firm believer in you can never cool the intake charge too much.
This is a pic of the engine in the Trans Am I posted earlier in the vid.
I used one air to water intercooler and made 1065 HP but the intake temps were climbing. This is my current project. Twin intercooled twin turbos.
I'm running an intercooler of that same size per turbo. Plus the twin 750 blow thrus on E85 themselves impart a small natural intercooling effect by way of their operation. Turbos run on heat but the engine intake does not need nor like it. Anywho, that's my side project. It's taking a back set to my twin turbo build but I'm sneaking it in along side it. Doing what I can when I can.
