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TODA camshafts questions
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<blockquote data-quote="shiroitenshi" data-source="post: 2043380" data-attributes="member: 27518"><p>Thanks.. so they do exist.. there is a problem though... I wonder what kind of duration numbers they're using, since they do not include the 'valve lift from seat' numbers where the measurements are taken. 1mm? or the american format of 1.27mm? Oh well, in terms of that .27mm, need to check valve clearance anyway, and probably by degree-in, can get the specs of the primary lobe anyway and check for the lift numbers.. probably be a bit off anyway, since there's probably wear at the tappets or rocker arms.</p><p></p><p>I'll check out the specs of the cams tommorow... found the site already.. once I knew they're spec D, not type A/B/C.. (>. </p><p>Still, it's missing the lobe centerline measurements I need to calculate opening and closing of the valves.. which means I should get emailing.. but I'd rather not until I get a clearer picture on what to ask.. probably after what I see tommorow.</p><p></p><p>But from the general idea.. I think this is a cam that's meant for 10K rpm carslah.. crazy duration numbers even if I think of it as 1mm like the japanese as opposed to the american 0.050" (1.27mm)</p><p></p><p>with the primary and secondary lobe having the duration of a stock B16A VTEC lobe.. I think you can roughly guess what the lower end torque will be like, and how this car will like higher rpm around 5-6K launches unlike stock B20Bs at 2.5-3K.</p><p></p><p>v8_nutter, xxxx and chris2000,? What you think?</p></blockquote><p></p>
[QUOTE="shiroitenshi, post: 2043380, member: 27518"] Thanks.. so they do exist.. there is a problem though... I wonder what kind of duration numbers they're using, since they do not include the 'valve lift from seat' numbers where the measurements are taken. 1mm? or the american format of 1.27mm? Oh well, in terms of that .27mm, need to check valve clearance anyway, and probably by degree-in, can get the specs of the primary lobe anyway and check for the lift numbers.. probably be a bit off anyway, since there's probably wear at the tappets or rocker arms. I'll check out the specs of the cams tommorow... found the site already.. once I knew they're spec D, not type A/B/C.. (>. Still, it's missing the lobe centerline measurements I need to calculate opening and closing of the valves.. which means I should get emailing.. but I'd rather not until I get a clearer picture on what to ask.. probably after what I see tommorow. But from the general idea.. I think this is a cam that's meant for 10K rpm carslah.. crazy duration numbers even if I think of it as 1mm like the japanese as opposed to the american 0.050" (1.27mm) with the primary and secondary lobe having the duration of a stock B16A VTEC lobe.. I think you can roughly guess what the lower end torque will be like, and how this car will like higher rpm around 5-6K launches unlike stock B20Bs at 2.5-3K. v8_nutter, xxxx and chris2000,? What you think? [/QUOTE]
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