What ratio is the rear end

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#1 (permalink)

11-10-2013, 07:52 PM

eedeutsch

CC Member

Join Date: Aug 2012

Location: Louisville, KY

Cobra Make, Engine: Backdraft Racing 427 SC

Posts: 49

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What ratio is the rear end

I know Backdraft uses BMW series 3 rear ends. What is the ratio ? I have a
450 hp Iconic Custom 427 supplied from Speed Fanatix. The car starts to
lug at 1700 rpm. Is this normal? The car is new one I received in May.

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