Turbosmart Time Attack FC RX-7

It's a little disturbing how similar this build is to my Nurburgring FC build...and comforting at the same time. The main hoop base plate only looks partially welded, what's with that? I do think I'll be borrowing their wing mounting technique, as I have the same wing.

I wonder why the two kickers coming down from the main loop are not welded onto the shock towers (the FC has HUGE shock towers, so it shouldn't be too hard to tie in all the triangulation).
They're welded onto the flat floor instead. Anyone has any explanation?

My guess is a WTAC rule restricting number of points that can tie into the suspension mounting locations. That's just a WAG (wild ass guess) though.

What's kind of interesting to me in a way is that the "standard" rotary turbos seem to always work out to being on the larger trim side of things... 60-1s at 60 trim, the T04R/Z at 63 trim, etc. Or is that more just a matter of the larger trim turbos being more optimal at the lower boost levels most rotaries are running at? Anyone know what the inducer/exducer on CART turbos is like?

Also, I like how the power number is pretty similar to that of the Garage Revolution car from last year. 600 vs 650hp, but at 4psi less boost. Even if those numbers are just at the flywheel (they pretty much have to be) that's doing pretty darn well.

I'm in love with this car already, simple and fairly light at the same time. Engine bay still looks a bit cluttered though (not sure I could do better with a race-spec turbo rotary but I've never tried either).

I wonder why there is no ducting for the rotors? Rules, or because the track isnt brake intensive?

I wonder what kind of diff they are using in that stock pumpkin.

From the Turbosmart guys:
With regard to a couple of the questions, the main hoop is fully welded to the floor, it's just that the base plates have a fold in them so there is no gap. In the photo it looks like a big hole.


With regard to tying the cage together we got someone to do this for us but the result was not what we wanted so we cut it out again.
We will be fixing this up in the future.

Remember that this is not so much a race car as it is an R&D car. Our CEO and staff also just happen to really like racing as well ;-)
There is a ton of sensors and wiring for datalogging most everything. There are also multiple un-used fittings and flanges for mounting various products on for testing.
It is a dyno/load cell on wheels.

Even our daily drivers are fully outfitted with dataloggers.

RotaryKnight: I suspect that since its a Time Attack car and only needs to go around the track a lap or two that it does not need brake ducts.

awesome FC stuff, Marty keep us in the loop on all that hotness down under!