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Tracked cars rev higher more often. I lost a steering pump from high revs the first year tracking. I changed the pump and pulley. Unfortunately last year lost another pump. Now I run an electric pump. I can tell you the pulley was much easier to change than the pump. On a Spec car the HP improvement should be noticeable with your weight reduction.
PS if you do, hold on to your old pulley for service / timing work.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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