Hey everybody, here's a bit of an odd one from a new guy on the forum, but I think it's pretty cool and I think you guys might get a kick out of it.
I am restoring a C3 Corvette race car that ran in IMSA and Trans am between 1978 and 1984, and I found out a couple really cool things about the engine over the last few weeks (the car is a tube frame chassis and I bought it as a roller, no engine). they are:
1) This thing ran a twin turbo small block that made over 1000hp for races under 6 hours.
2) It ran two tip turbine Mack E6 intercoolers in the manifold!
I think this is super-cool, since it shows the innovation racers were turning to as they applied turbocharging to race cars early on. No good parts were available for racers, so you figured out what you could repurpose from the military, aviation, and industry and went racing. I think this both looks awesome, and it was pretty darn functional. No packaging a big cooler up front, compact turbo placement, and it makes it look like our car look like it's powered by an air conditioning unit, which is great for a car that was sponsored by Carrier Air, and finally, it's totally period-correct, which is kind of everything with vintage racing. I also love the idea that this car wasn't just another big block Chevy, it's different and wildly powerful, and super unique, which is why we are restoring it to this configuration. I attached a few photos so you guys can get an idea of roughly what this setup looked like (and yes, I know I have a LOT of work in front of me).
You can see the lower receiver with the plenum on top of it in the second photo, then a rough idea of where it all fit into the chassis in the third.
This leads to my next questions. All I have of the original setup is what you see in those pictures, I have no coolers. I need to either know the dimensions of the cores or I need to get my hands on a couple originals. I don't mind if they leak or whatever right now, as I need them for mock up and fabrication.
Also, any resources for Mack intake parts would be absolutely appreciated!
Thanks,
Mike