Improving roots SC efficiency??

[oldcorollas]

Hey all..

just having a few thoughts re the toyotas SC12 and SC14..
obviously they are pretty primitive pieces of kit...

anyone heard of ppl modifying them to increase their efficiency?, ie, inlets/outlets etc?

[ViPeR_NiPPleX]

ive read about people stripping them and smoothing the edges from the inlet/outlet on both sides... apparently it helps

[jonra23]

Water injection pre supercharger helps with sealing and increases efficiency, also absorbs some heat which does not give a higher boost reading but higher air density.

regards
jon

[jeffro ra28]

injecting fuel before the blower helps... The fuel acts as a sealing agent on the rotors and as jon said, keeps temperatures down. Im unsure of the structure of a toyota SC but the fuel should also lubricate it to an extent and help it last longer.

[jonra23]

Fuel pre supercharger is the go as Jeffro says as it has a greater cooling afficiency, not advised if you are running an intercooler or long inlet tract though as a backfire could be pretty impressive.

regards
jon

[c2888]

Although not SC12/14 but eaton, see here here and here. Just like heads and inlet manifold, you can match, radius and reshape to improve the efficiency.

http://www.theoldone.com/sc/jackson-upgrade.html
http://www.theoldone.com/articles/da...wer/index.html
http://www.theoldone.com/articles/bl...and-howto.html

Dan

[Sam_Q]

I have also seen written in where some gains with an aftermarket blower gained boost running water injection. It on a hyundai in Zoom I think?