sc12 info

[Tim.duncan]

hey guys

just some sc12 info, please feel free to add

http://www.ae86drivingclub.com.au/dcimages/2/9/26054.jpg

a sc12 supercharger, inlet and out let pipes

http://www.ae86drivingclub.com.au/dcimages/2/9/26055.jpg

which weighs 12kg!

http://www.ae86drivingclub.com.au/dcimages/2/9/26056.jpg

Left small port. Right bidport
an upgrade for any one using a bigport 4agze sc12 (mr2) is to change to the smallport pully (ae101)

http://www.ae86drivingclub.com.au/dcimages/2/9/26057.jpg

the splines are the same so the change is farily straight forward. it is difficult to hold the pully still and undo the main bolt. i would recomend doing this off the car. the bolts (10 mm spanner) will need to be undone 1/2 a turn each at a time as the pully is in the way so it takes about 1/2 hour to just change the pullies

http://www.ae86drivingclub.com.au/dcimages/2/9/26058.jpg

big port 123mm

http://www.ae86drivingclub.com.au/dcimages/2/9/26059.jpg

small port 118
smaller driven pully = supercharger spinning quicker = more boost
i remeber seeing power charts for stock motors and the small port makes a fair bit more power, i would think allot of this has to do with them running more boost

[Nikkojoe]

The boost increase wouldn't really give them that much power as sc12's are pretty useless anyway. You would get more torque at lower rpm, not really power.

Its mainly due to bigports running 8.0:1 CR and smallports 8.9:1 CR.

Also the + shape pulley found on bigports also includes the ae92 afm bigport. AE92 smallport got the same as ae101 obviously. I found also when changing pulleys on my ae92 afm engine that the circlip that holds the coil on is annoying to install on car...