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Tomei Camshaft 78 (312°) 7.75mm 1of3
 a12grunt  2015/11/27 23:38  Tell a friend
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A-series Tomei Long duration, high lift camshaft.
Brand New and NLA.
Was kept as a spare.Very rare to come by and esp in brand new condition.Arrived 6 months ago from Jap.
Same camshaft type/spec as used by tomei hirota,advan and many other A-powered cars in jcca.
Duration:
78 Degree, 312° advertised, 265° at 0.05" valve lift.
lift(Based on Zero Lash and Theoretical Rocker arm 1.5 Ratio):
7.75mm @ CAM , 11.20㎜ @ VALVE
I will use these camshaft with my new Nismo high-ratio rocker arms.
For my application purposes,It would be absolutely pointless to run this type of camshaft specs on a Naturally aspirated highly modified A series engine(narrow powerband and in the higher rpms) and then use a stock "geared" gearbox.I simply can't afford to drop 2000-3000 rpm between gearshifts as these camshaft will move the powerband up the rpm range.
These is where a close ratio gearbox comes in handy.More torque multiplication,less heat,faster acceleration (less top end),less rpm drops and most importantly,keeps the engine within its sweet spot on the track.On the track,Better if combined with the right diff ratio and tire sizes.
I have read that apparently Tomei camshafts are "kind of" street friendly but will update forum on how it behaves on street in the future. |
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