GZE power - what is it capable of with the charger

[oldcorollas]

there's some good info on the cams here is good to have firsthand experience..


maybe now a litle SC theory.... the problem with the toyota straight lobed Roots style SC is that once they start getting to higher pressures and spinning higher rpm, their losses and outlet temps get much higher... whilst you may have higher pressures, a fair bit of that could be coming from higher inlet temps...

regardless of SC12 or SC14, at high pressures, (theoretically) they will have high discharge temps.... so if you are going for outright power (not the actual reason for using an SC anyway but..) then maybe the roots SC's are a little limited in that respect...

i think 4AGZE kiddies need to start thinking about better superchargers... since the toyota ones (whilst cheap and easy to replace) have severe limitations at higher pressures and higher rpm..

however... the twisted lobe Lysholm style SC's have pretty much a constant outlet temp with rpm, and they are efficient to much higher pressures.... AND consume about half the power as the toyota SC (apparently)... so if you are after kw, then at high pressure high rpm.. for the SAME pressure the lysholm will give you an extra (maybe) 20kw at the flywheel, simply due to lower mechanical losses.... they may be expensive, but someone has to try it

anyway, maybe it's not for the budget project, but it's one way to get more power by doing the same thing (even if it's not quite for free)

and a big up for the guys posting good info here
Cya, Stewart

[takai]

Doing an SC14 swap would probably net you the sort of power you are looking at. Consider that too.

[myne]

I just had a weird idea.

Has anyone heard of anyone running different profiles on each of the 2 valves per cylinder(on 1 cam)

Say... you could run a 308 profile on 4 inlet valves and a 270 on the other 4
and same on the exhaust.
It *might* just give a slight widening of the torque curve, and if you really really know your shit, it might just be possible to run extra overlap on diagonally opposing valves without messing up the flow. I guess it could even idle a bit more like the lower profile cam would.

I'd be curious what the results were if it's ever been done.