Valve springs, dual or single? [Archive]

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MdR

September 24th 2002, 09:00

914/4 3 bolt heads with 45mm inlet 38mm exhaust. Rev limit set at 6000rpm. 0.513" lift on intake 0.500" lift on exhaust.
Dual or single valve springs?
Anyone want to recommend a maufacturer/supplier?
thanks
Martin

Oliver Knuf

September 27th 2002, 03:50

Ask James Calvert from Stateside Tuning, as he uses pretty the same springs like us. Scat single springs with a Waterboxer inner spring from the 2.1l engine. Perfect match up to 6000rpm!