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[greenmac80]

I want a brand of Supercharger that provides LOW down rev range boost!

2000rpm? ish if possible!

[Jono]

eaton m45?

 

for what motor?

[greenmac80]

eaton m45?

 

for what motor?

 

my 4age silvertop

[irokin]

Just change the pulley ratio. Whatever supercharger you use you're going to pull the powerband down so you will have to sacrifice top end just like you would with a smaller housing turbo. I get the feeling this is for a twincharging setup but?

[greenmac80]

no this is to take car of the lack of bottom end power!

i would like it to hit boost really early like 2000rpm?

would be good if it could maintain boost right through the rev range.

but as a stock 20v nothing really happens till about 5000rpm.

[irokin]

You can't have your cake and eat it too. 5000-8500rpm is a pretty normal size powerband for most similar motors. Motors closer to square (SR20) will bring that down to something like 4000rpm-7500rpm.

 

Sticking a sizeable amount of airflow into a 4A at such low RPMs is going to give it some chronic piston slap. It's simply not designed to make power at that end of the spectrum. Even with a correctly matched turbo you're not going to be able to bring that down much without losing a fair amount of top end as well as max power and area under the curve.

[greenmac80]

Is the silvertop gonna have enough get up and go in a ke55?

this is what i'm worried about.

if it'll be fine then i'll get a rotrex charger

[tas_ae71]

if you want low end chugging power and want to stick with a toyota A-motor, go 4agze set-up with short duration bigger lift cams with 7a bottom end. wont rev like like the 20v will have bucket loads of toque down low compared to the std stilver top.

 

or you could go for something like a 1uz which will bang the tyres off at idle with it huge amounts of axle breaking toque.

 

 

id like to think that a 20v would be more than enough to pull a ke55 around. it should have enough zip down low to drive it like a normal car around town, to work everyday etc. when you want to over take, have a thrash, just smash it back a few gears and actually use some of the revs, as long as you have a motor that hasnt had the absolute guts mashed out of it, driving it like this it should have a very long life still. should only have engine life problems if your bang it on the limiter constantly and or do not do proper maintenance on it.

Edited June 19, 2008 by tas_ae71