The result is an all-new, reengineered Charge-Air-Cooler system developed in partnership with CSF's strategic partner PWR. Compact, more efficient, and now compatible with Spider models, this next-generation system sets a new benchmark in performance cooling for the McLaren 720S, 765LT, GT, plus the new 750S and GTS.
Both CSF and PWR are Tier-1 OEM-certified cooling manufacturers that specialize in high-performance heat exchangers. These new McLaren Charge-Air-Coolers use advanced core technology, optimized for minimal pressure drop and maximum thermal transfer. Each pair of coolers are made here in the USA with in-house pressure-testing, and quality inspections to meet the stringent demands of McLaren owners. This system delivers unmatched cooling performance for the 4.0L twin-turbo V8 (M840T) found in the 720S, 765LT, 750S, GT, and GTS. The CSF by PWR Charge-Air-Coolers are handcrafted and professionally tig welded in the USA. Each unit is made with the highest level of craftsmanship and durability that is unmatched anywhere else in the aftermarket.
Formula 1 Grade Core: The new CSF coolers feature hand-built bar/plate cores manufactured in PWR's Tier-1 OEM facility here in the USA (Indianapolis, IN). Each core is produced to aerospace-level tolerances using extremely lightweight and thin materials. This allows for a higher concentration of internal fins, maximizing heat transfer efficiency. The PWR bar/plate core uses 3 times as many fin rows compared to the factory tube & fin core. Bar/plate cores also have a much higher burst pressure rating and can take the stress of boost spikes much better than tube/fin cores.
Tank Design & Construction: One of the other shortcomings of the factory coolers is their ability to handle high boost. The factory coolers are an all metal construction with extrusion formed tanks brazed to the cores. This is much stronger than the more common plastic tank with crimped-on gasket seals, but it still leaves room for improvement. The brazed joint is still a weak spot in the system and can burst at higher boost pressures. The new CSF Charge-Air-Coolers fully TIG welded the all aluminum tanks to the cores. This construction method offers the strongest possible coolers that will handle much higher boost pressures than the factory coolers.
