Originally Posted by DaveEstey
Word. Thanks man.
Any things you can share about racing a turbocharged RX7 would be greatly appreciated too.
your setup with the radiator in the back is actually going to work out really well.
cooling is always a problem. i think you have enough radiator, but you'll want more oil cooling. 2x stock coolers are probably the easy start.
you want an intercooler that is pretty big, and the turbo intake will want some filtered cold air. this is where the radiator in the back is going to really help, in a normal FC, you end up with an IC, oil cooler radiator sandwich, and its hard to get enough airflow to everything to keep it cool. you could just mount the oil coolers where the radiator was, and then put an IC in front of that and call it a day. or you could stack them like a 1st gen, where the IC goes on top of the oil cooler, you put a sheet of AL (or whatever) in between, run it to the grille with something to adjust the height at the front, and then adjust it in the opening until temps are ok.
300hp seems to be a hard hp number to hit, its traditionally either a stock turbo that is maxed out, or a big aftermarket turbo that is running as little boost/power as possible. just a for instance here, but my FC (running an REW engine), was either going to be running a stock turbo with some bigger wheels (i want to do some testing, but i like the V trim), at around 280 hp flywheel, OR i just bought an HKS manifold, and with a 60-1 on it, i'm looking at about 360hp again flywheel. to tune it down to 300hp, i need to be able to run like 8psi, and a restrictive exhaust. which would probably make it pretty laggy.
i know there are some new turbos that maybe change things, my practical knowledge is dated