Ben found another engine, but had Rick Shaw Racing rebuild the 13B before it went in in order to handle more boost. With Rick himself behind the die grinder, the engine was given full race porting in both the intake and exhaust while also receiving five extra dowels for engine rigidity, two-piece 3mm Mazda apex seals and custom windowed rotor bearings. On the outside, the REW engine still retains the standard intake manifold, but just to the left of that sits a much sexier single GCG XTR trim GT35R turbo and XTR 55mm wastegate mounted on custom manifold built by Liverpool Exhaust. Boost leaves the turbo and is cooled by a custom front-mount intercooler fabricated by Mick's Metalcraft and is expelled when the throttle blade snaps shut via a Tial blow-off valve. Spent exhaust gasses exit the turbo via a custom 3-inch exhaust system and are toned down by a HKS Dragger muffler.
So far the car hasn't been pushed hard. Ben doesn't like admitting he's got to get used to the power. He also says the current 200kW at the wheels is with the car running a very mild tune. Having up-rated the fuel system with two Bosch 044 pumps and replaced the factory engine management with a plug-in APEX'I Power FC unit, there's no reason the RX-7 shouldn't be able to produce a comfortable 300kW.
While the engine was out, Danny grabbed the opportunity to sneak the RX-7 back into the workshop so he could strip and prepare the engine bay for paint to match the exterior of the car.
There were no real intentions for the car to be drag raced and the factory cog swappers in the FD RX-7s are more than capable of holding a reasonable amount of punishment. Ben only opted for an upgrade to beefy-but not ridiculous-OS Giken twin-plate clutch mounted on a lightened flywheel. The rest of the drive-train is also standard, although Ben is considering a Torsen diff center conversion for just that extra bit of oomph out of the corners.
Inside, the interior hasn't been treated to a full re-trim, yet has been fitted with a pair of Recaro SPA Kevlar fixed back buckets, a MOMO wheel and gear knob and a brilliant sounding Rockford Fosgate sound system. Danny has plans for further upgrades inside. But for now his silver highlights and the additional Defi daisychain gauges are looking the part.
As for 2004, Danny says he'll either take over ownership of the car or Ben will sell it. Either way, the car will be tuned to full boost and unleashed on an unsuspecting public. Yes, the Aussies understand the meaning of show and go.
13B REW Mazda Rotary
Race ported and dowelled, 3mm apex seals, windowed bearings, GCG GT35R turbo charger, XTR 51mm waste gate, custom front-mount intercooler, 2x650cc primary and 2x850cc injectors, APEX'i Power FC engine management
Factory Mazda five-speed, OS twin-plate clutch, short shifter
Suspension & Brakes
1.5-inches lowered Tein HA coil-overs, Std FD RX-7 brakes fitted with EBC Green Stuff pads
Wheels & Tires
Momo Magnum 20 x 9-inch front and rear, 255/35-20 Pirelli PZERO tires front and rear
200rwkw mild street tune
Recaro SPA Kevlar fixed back buckets, Momo steering wheel and gear knob, Silver highlights
Rockford Fosgate, twin 8-inch sub tubes, rear mains and front splits