RE-Amemiya Returns to Attack Tsukuba! | Lightweight Boosted Machine Has Next-Dimension Speed
Published : 2021/04/02 14:50 Modified : 2021/04/02 14:50
Records 56-second time without special parts
We get the details on Tsukuba missile that draws on years of experience!
It goes without saying that RE-Amemiya is the original and best when it comes to tuning rotary engines. The point of the “RE-Amemiya Furinkazan LW-7” we present to you here was to see how fast a boosted FD3S can get around Tsukuba.
The thing RE-Amemiya put the most emphasis on with this FD3S build was lightness. The goal: sub 1 tonne. To that end, carbon fiber makes up large sections of the car such as the tailgate and door panels, the GT wing and the bonnet. In addition, the front bumpers and wide body kit use FRP with a lower ply count than commercially available products. The impressive result is a kerb weight of 970kg.
Additionally, weight reducing measures are in effect in various locations on the inside of the car, and the engine harness is as bare as possible, leaving only equipment necessary for circuit racing. The long and the short of it is that such an accumulation of small reductions in weight was necessary to strip over 200 kilograms from the already svelte FD3S.
With consideration to weight reduction and also achieving better weight balance, a safety fuel cell replaces the fuel tank. Beneath the tailgate, the spare tire section has vanished too, replaced by a flat surface. When we took these photos the car had a passenger seat, but on race day it was a single seater.
The 13B-REW engine gets a full-time twin turbo system, making use of stock turbochargers fettled by GCG. As for internals, a focus on durability means modifications are not overly extensive. There are ceramic apex seals, but the standard side intake ports remain. This is a track car, so there is no aircon or heater. A standalone LINK ECU handles engine management, up to a maximum output of 420ps,
The intercooler and radiator do away with the usual V-mounts. Instead the intercooler sits on the horizontal plane, with the radiator mounted at an angle below it. This has been the case for RE-Amemiya’s time attack machines since time immemorial. Interestingly, the intercooler uses two stock CX-5 cores combined into one. “Unlike products available on the aftermarket, these cores are super light,” explains Amemiya’s Ame-san, suggesting the main motivator behind this choice was keeping wweight down.
The rear end also warrants a mention. Converting the floor to a flat bottom was a consideration early on, but since the car would only run at Tsukuba, they judged that any downforce benefits gained would be outweighed by the extra weight incurred by the addition of the metal panels. In they end, it stayed as-is. The exhaust gets treated to a full titanium dolphin tail style backbox.
The mainstay of the suspension is a set of adjustable dampers from prestigious shop “Scoot”. Both ends of the car ride on 16kg/mm Swift springs. The control arms get a full conversion to pillow ball bushings, with the aim of achieving linear movement in response to forces that pass through the suspension.
The front brakes have improved stopping power, courtesy of 6 pot Endless calipers.
The body kit is an RE-Amemiya original, the AD-GT (Type 3) – one which has maintained support amongst FD3S owners over a long period of time. The businesslike wheels are 10.5J Enkei GTC02s, on which sit 295/30 R18 Advan A050 tires.
This “Furinkazan LW-7 is the first serious circuit car since 2002 by the man also known as “the god of rotary”. Right off the bat in the shakedown it recorded a superb time of 56.806 seconds. We’re looking forward to seeing by how much it can improve that record going forward.
Thanks to: RE-Amemiya, 439-10 Nanae, Tomisato City, Chiba Prefecture (Tel: 0476-90-0007)