F-2 Speedy

iTrader: (6)

Single plane application Vick Jr...930 cfm aerosol holley .what are you guys doing, YES or NO.any benefit

Unlimited jd

iTrader: (5)

8-10 hp every time so if it fits sure, if you have to do any mods to the hatch don't bother, might equal .5 mph

F-2 Speedy

iTrader: (6)

No issues with clearance, raised hatch...1 inch or more ?

vintage chromoly

iTrader: (3)

4 hole 1/2" on top of an open 1/2"..

F-2 Speedy

iTrader: (6)

this looks good 4 hole and open

http://www.ebay.com/itm/2-silver-SUP...xYW0zz&vxp=mtr

Never mind its in China

vintage chromoly

iTrader: (3)

SB, are you still making spacers?

bck

540 Vic Jr, 2in. vs none. I saw no difference with a 4 hole or combination. Regular 2 inch open.

Sonic30ss

Identical engines one with 4 hole one with super sucker 4 hole.
SS made +6hp/+12tq, that engine consistently pulls 50 rpm more than other. Does it make a difference in speed, prob not, but mid range cruise (where I spend most time) is probably more efficient based on tq increase.
I'm going to replace standard spacer with SS in the spring to verify results.

Baja Rooster

iTrader: (1)

Am I reading that right that the red line is with the spacer making less power?

bck

No, the better blue line is spacer and is making more power. The printer was running out of ink so the one line is traced over to darken it.