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10-19-2016, 01:26 AM
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#5 |
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0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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Stock valve springs are good for at least 7800 rpms, 2az spring will bind I haven't tried 1zz springs but I imagine its probably the same. BC valve springs are too stiff for VVT. Stock cam is way out of steam before 7k rpm, I've got plenty of dyno sheets to prove it.
IIRC stock springs are 25lbs installed height and 50 lbs at .4" Brian Crower springs are 1.280 : 48-50 LBS .400” lift 105 lbs
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2014 BSpec Divisional Champion |
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