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F5 Green Secondary Spring

706 Views 0 Replies 1 Participant Last post by  Larry
It was mentioned that a green secondary spring in an F7 would increase throttle response, but some top end would be lost. All understandable. Wouldn't you think the F5 would have more top end and possibly have better acceleration swapping out the green spring with a red and increasing helix and to 53 or 55 degrees.

That green spring is real stiff at shift out, something like 157lbs. WOW!! :eek: