For the previous few years, HKS have been growing an all-new turbo piping and air field equipment for the RB26. On the 2023 R’s Assembly held final weekend at Fuji Speedway, they lastly confirmed what it seems to be like fitted.
The long-lasting Japanese efficiency elements maker has been growing higher-end Nissan RB merchandise for a while, and the air field equipment was first seen in a 3D-printed mockup state on the 2022 Tokyo Auto Salon. It’s a part of HKS’s ‘Superior Heritage’ program, which additionally features a highly-reworked RB26 with vertically-mounted turbos, a twin-chamber carbon consumption manifold with an electrical throttle physique, a revised injection setup and V-CAM on the exhaust aspect. Of all of the HKS Superior Heritage elements, the air field equipment is more likely to make it to manufacturing first. We expect…
The equipment was on show at Tokyo Auto Salon this 12 months, however I’ve been patiently ready to see it fitted to a automobile. At R’s Assembly it lastly occurred, with HKS’s R&D BNR32 Skyline GT-R unsurprisingly the recipient.
So let’s dissect it, and see what we’re taking a look at. Keep in mind although, these are all simply preliminary observations after seeing it fitted in a automobile for the primary time, however I’ll attempt to contact on every part.
Much like Nismo’s carbon fiber inlet pipe equipment, half of the HKS bundle replaces the dual pipes that feed the compressed cost coming from the turbos into the intercooler. That’s the very first thing to notice, as this equipment has been developed for use completely with GT25-sized turbos. That features the R32 GT-R’s inventory turbos, N1 turbos, HKS GT2530s, HKS GT-SSs and the brand new HKS GT3 turbos in each sizes supplied. If you’re eager to run this air field with a bigger twin-turbo setup with larger flanges, you’re out of luck for now.
Fairly merely, turbos exterior of the GT25 realm would angle the pipes otherwise and never enable the carbon air field to bodily match.
This prototype equipment makes use of R35 GT-R airflow meters, so when you have ditched your AFMs in favor of a MAP sensor setup then you have to to attend for an AFM-less model, if HKS will certainly be releasing one thing like that. Seeing how the AFM is fitted right into a separate part that might simply get replaced by one with out the mounting flange, I’d say it’s extremely potential.
To not hinder movement, the piping is a bit straighter in comparison with the Nismo equipment. Whereas this shall be good for effectivity and response, it does open up a somewhat massive hole between the engine itself and the piping, permitting the warmth shielding over the exhaust manifolds and the oil traces to be very seen. For reference, the Nismo Inlet Pipe Equipment (aluminum or carbon) tucks tighter in in direction of the engine and makes use of the dimple within the exhaust cam cowl.
One factor that stood out me, is the actual fact HKS appear to have ditched the Wiggins clamps they’d on the 3D-printed mockup in favor of silicon sleeves and common hose clamps. Personally, I feel Wiggins W900 Collection clamps would have added a lot extra, each in seems to be and efficiency. However hey, perhaps HKS will supply a model with them.
HKS’s improvement BNR32 runs their full RB28 engine bundle – with out the V-CAM system – leading to a powerful and dependable 500hp to 600hp relying on settings.
I feel the following step right here can be for us to get behind the wheel of this automobile and report again on how the carbon piping and air field performs out on the road. Hopefully we are able to make that occur.
Within the meantime, keep tuned for my foremost protection of R’s Assembly 2023 – there’s a lot to see.
Dino Dalle Carbonare