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Tech & Fab
440 sbc spin off drive train loss in 4x4
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<blockquote data-quote="d_daffron" data-source="post: 697438" data-attributes="member: 4983"><p>I think the drivetrain loss through some setups may be a little exagerated alot of the "loss" has to do with inertia. Not changing any settings on the dyno but swapping to smaller tires will likely show a bigger HP number due to the engine not having to accelerate all the rotating mass of 43" tires. I would imagine slowing the acceleration rate in the Dyno's settings would show the same gains by allowing the engine more time to overcome the inertia of the tires and drivetrain. </p><p></p><p>It'd be interesting to see a back to back dyno test just changing tires from something like a 30" tall street tire to a set of 40+" offroad tires.</p></blockquote><p></p>
[QUOTE="d_daffron, post: 697438, member: 4983"] I think the drivetrain loss through some setups may be a little exagerated alot of the "loss" has to do with inertia. Not changing any settings on the dyno but swapping to smaller tires will likely show a bigger HP number due to the engine not having to accelerate all the rotating mass of 43" tires. I would imagine slowing the acceleration rate in the Dyno's settings would show the same gains by allowing the engine more time to overcome the inertia of the tires and drivetrain. It'd be interesting to see a back to back dyno test just changing tires from something like a 30" tall street tire to a set of 40+" offroad tires. [/QUOTE]
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440 sbc spin off drive train loss in 4x4
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