Quote:

Mike how should one do a burnout @ the track with a stock (shift kit) VB so as not to overspeed the drum?

Start out in manually shifted 1, is it then ok to shift to 2nd?
Don



With the stock VB.. its gonna start out in 1st/low
so shift the shifter into 1st/low to apply the band
(that way all the load isnt on the sprag) and get
it spinning... AS SOON AS POSSIBLE shift into 2nd
and get the tire speed up and shift into high...
just remember that you dont want to ever pedal the
car in low gear... if your in D and you pedal you
unload then slam the rollers back in and thats when
things break.. if the sprag breaks it then spins the
drum 2.2 times the engine rpm... the drum(production)
will let go at about 13,000 rpm... 6000 engine rpm
X 2.2 is 13,200 rpm.. so the engine doesnt have to
be spinning BIG rpm... but the sprag is only used
in 1st/low gear.. thats why you want to get out of
1st/low gear as soon as you can
EDIT
with a MANUAL VB I start out in high gear and wack
the throttle and get it spinning pretty quick but
my car is light so I dont have all the friction on
the tires from weight...on most cars with the manual
VB they start out in 2nd then shift to high... remember
your trying to get the tire speed up for heat

Last edited by MR_P_BODY; 09/20/14 11:21 PM.