What is the story of the exhaust manifold FMS that could not be mounted on our RS?
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Seen a few of these FMC manifolds, but never seen that heatshield.
S1 RST has this manifold too if i'm correct.
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I thought the reason for didn't go with the tubular manifold was to do with cost as the cast item was cheaper and they were already making a loss on each mk1 frs. I think the heat issue was caused by the heat mat that most mk1 focus have on the underside of the bonnet and if I'm correct one or two test cars caught fire with these mats on during testing though I could be wrong.
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There was never such a thing as the "Ford motorsport" exh manifold. all development cars had a tubular fabricated manifold, right up to about 8months from job1. But, a car doing durability mileage accumulation at Lommel had a thermal event (industry speak for catching on fire!!) when the prototype fabricated manifold cracked and set fire to the plastic cam cover on the engine (in fact, the car also had the stainless cam cover heat shield missing which compounded the issue). Unfortunately, as a bit of a knee jerk reaction, the descision was made to swap to a cast log type mainfold. This reduced power and torque by approx 18bhp & 30Nm. Those trip cars all started with the tubular manifold, but were modified to the cast item before the final vailidation trips occured.
The production cast manifold certainly slightly blunted the cars performance and turbo spool compared to the original manifold :-(
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