Originally Posted by
buzz777
It is not advisable to completely remove upper deck. You would have problems with tweak and slippage of front belt. Car would be a handful to drive too.
Why not running a smaller spur gear instead of a bigger pinion?
Also what you could do is raise the upper deck by inserting 1 to 2mm shims under upper deck, but always make sure there is enough clearance of the front belt
Not upper deck, that post which attached by screw in motor mount.
Do you know:
The smaller spur can use is 82t, due the biggest can use is 58t, you cannot reach closer than this condition.
If until 1 month from the event i would go still cannot put the car run less than 2.8 fdr, the only way is swap into 2014 lower deck.