
06-15-2018, 06:23 AM
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Join Date: May 2013
Location: Folsom, CA
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Quote:
Originally Posted by CJD Automotive
I have a question on weight placement. On some of the heavier objects mounted, if given a choice, is it beneficial to mount them closer to the COG at a higher height, or further away at a lower installed height?
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Hey Craig!
That's a good question. It depends on "how far" we're talking.
Meaning, if we have the choice of mounting 30# battery 10" above the bottom of the chassis behind the passenger seat ... or ... 3" above the bottom of the chassis but 20" behind the rear axle ... for sure we'd go with the first option.
On the other hand, if we had the choice to mount our 160# fuel cell 20" above the above the bottom of the chassis behind the roll cage ... or ... 1" above the bottom of the chassis but 10" behind the rear axle ... for sure we'd go with the latter option. So if definitely depends on "how much" up or away from the COG we're considering.
I try to keep all the mass possible inside the wheelbase. As things past either axle centerline add to the pendulum effect. The realities of packaging occasionally prevent that and we end up with the fuel tank behind the rear axle & the engine & radiator ahead of the axle. I suggest you do your best, but it's not always practical to make these cars perfect.
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Ron Sutton Race Technology
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