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V8VW
01-06-2014, 04:55 AM
OK. I know this is a dumb question, but I have to ask anyway. Being this is my first build, of this kind, I have to ask, what is the average diameter of a driveshaft and how far should the floorboard/tunnel be away from it? The reason I ask if because I am workinging on floorboard pieces on my project now.

andrewb70
01-06-2014, 06:46 AM
http://www.markwilliams.com/driveshafttech.aspx

You want at least 1/2" between the body and any moving driveline parts.

Andrew

V8VW
01-06-2014, 08:29 AM
Thanks.So, what is the average diameter of a driveshaft?

andrewb70
01-06-2014, 08:36 AM
Thanks.So, what is the average diameter of a driveshaft?

There is no such thing. The link I posted outlines the specifications that you can use to determine the driveshaft that you use.

If you want a quick easy answer, I would leave enough room to accommodate a 4" diameter shaft.

Andrew

V8VW
01-06-2014, 08:59 AM
Thank you

wayward
01-06-2014, 07:42 PM
Its really a factory of money and Horsepower

formula: smaller Diameter x more HP = Mucho Dinero or larger diameter x same HP = a little less cash... Then of course exotic material can offset diameter to achieve the same HP...



Thanks.So, what is the average diameter of a driveshaft?

Todd in Vancouver
01-06-2014, 10:01 PM
I would say it depends on your build and your goals. For example, I've got just under 500hp and want to keep my car as light as possible so I will be going aluminum (CF is out of my budget). On sizing I will be ordering something good up to 800hp'ish as I plan on future upgrades.

http://www.summitracing.com/dom/search/brand/inland-empire-driveline/make/chevrolet?SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=Aluminum%20driveshaft