As far as I'm concerned the performance boost is secondary to the overall benefit in running. Turbo engines work better with colder air (kind of obvious) something of which there is a shortage of in the NT. So a larger intercooler is a must have item and certainly does improve performance.
The standard intercooler on a Td5 etc consists of an aluminium core with a cast metal-alloy header on the discharge and a plastic header on the inlet. All of which is then glued and clamped together. The Allisport units are full TIG welded aluminium. Glue, plastic and clamping all contribute to insulating the heat loss ability of the intercooler.
Consider how the vehicle runs in Canberra summer vs winter.
Last edited by dmdigital; 9th April 2011 at 06:15 PM.
Reason: Ammended
MY15 Discovery 4 SE SDV6
Past: 97 D1 Tdi, 03 D2a Td5, 08 Kimberley Kamper, 08 Defender 110 TDCi, 99 Defender 110 300Tdi[/SIZE]
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