So, Now that we are soon to have supercharging as an alternate to turbo charging, what kind of mods do we add to prepare for supercharging? do we need to prepare for supercharging like you do turbo charging? Also how much hp/speed gain can we expect? Oh and one last thing, ive heard that supercharging can damage your engine and is all around not good for your engine, is this true??

Jason

 

i think that the fuel system should be upgraded a bit and compression is good. thats basically all that needs to be done.

 

Mods for Supercharging should be similar to turbo'ing a car. Basically its the same thing (compression enhancement); just a different concept of it.

Upgrades should include:

-Better brakes and suspension to handle the power
-Transmission upgrades and TC (things like to break!)
-Upgraded fuel systems
-Upgraded or well maintaned and efficient cooling system
-High pressure oil pump; if one is even available
-Best spark plugs/wires you can afford or simply newer ones
-Exhaust
-Extended insurance policies and a big wallet.

As for it being detrimental to your engine - that debate is centered around the internal lubricating system of the blower. Self contained units are fine - but sumps that share the same oil with the car can sometimes cause harm if the bearings fail in the blower and sends trash through the system. Rarely heard of that ever happening, but it has been discussed as a concern.

Best advice is to contact the distributer of the SC and get their recommendationds. A low boost blower will require less engine mods to handle the power; a high boost blower will need radical engine mods. So its difficult to say what you will need to do to your car without knowing what levels of boost you plan on utilizing.

Anyway - hope this helps.

Keith

 

Almost forgot - Better tires to plant that power to the pavement. All the power in the world is useless if you cant transfer it to the ground.

 

I've heard that over time a supercharger will damage your engine because they pull upwards on the crank. Think about it. The crankshaft is spinning horizontally. Above it is the supercharger pulley. Because the belt has to be tight between them there is always a force pulling up on the end of the crank.

 

Hehehe...that's the first time I've heard that concern...there's about as much concern as the A/C pulling too much on the crank....

ANY type of forced injection can hurt your motor if it's not done right...any low boost supercharger won't harm your engine...now if you going to build this thing to compete in the JTC or something, then of course it's not going to last as long...but a Stage 1/2 S/C won't hurt your engine...Stage 1 should give you somewhere in the 80 HP increase...SRT's S/C give the IS300 a 84 RWHP increase...

 

Slick Lex you are probably thinking of mustangs. They do tend to wear their crank main bearings alot quicker due to the added load of the charger. But its a toss-up to what kills the stock block first, either eventually the bearings wear and need to be replaced, or you get to power hungry and really pour the boost to it and do other damage.

I'm not familar with the Lexus V-8 design, but its got to be better than the old Ford small block. especially seeing as how it is not a 40 year old design.

chris