Pulley would probably be easiest in my unexperienced opinion, but I'm sure aftermarket will be happy to oblige. There is a small company that makes these types of blowers (forget who exactly). But I think GMPP is going to have fun with this motor .

 

I wonder if GM will offer a pulley/fuel injector upgrade kit like they do for the Cobalt SS.

 

I wonder if they will offer a crate version

 

This is the same style supercharger/intercooler that is on the STS-V. The intercooler has coolant running through it with it's own electric pump. I haven't really heard of anyone modding a STSv but I'm sure it's been done.

 

I think it looks great!

I dont understand the concept of modifying a nice 100k car but I would hope, The after market companies will develop aftermarket superchargers that fit. Having said that I dont know anything about superchargers...

 

there are rumors that the supercharger is based off eaton's new high helix superchargers, TVS. they're worlds ahead of the old m60s (cobalt), m90s (s/c 3800s), and m112s (cobras/lightnings). the new blowers with equivalent displacements (of blowers, not engines) produce far better results. the efficiency of them is incredible. the TVS 1900's compressor map can top 75% efficiency. thats turbocharger territory. I would be willing to bet that the blower thats on the LS9 has quite a bit of power left in it. I dont think a blower swap would be needed for 95% of people. bob lutz has already said the engine would do over 700 hp too!

 

wipple makes them for the ford GT
don't think they will let the corvette pass by untouched

i can see a pully and tune adding a 100hp

 

whipple?!?

I'm not sure that whipple makes quite the same thing.
The blower's inverted("upside-down") like the LS9's?

 

The Saleen Mustang blower is like that on the 05+

Blower sits in the valley, and is inverted

 

SRT10 pilots, be afraid.

 

I don't think GM would worry about that too much. Think about how many Ford GT owners are exchanging their superchargers. Very few. This is a racecar already, for crying out loud!

 

Isn't this motor supposed to be factory rated at 650hp anyway? So 50hp more is what he stated it would do? Doesn't seem like a substantial statement to me unless the factory rating is 600 or something and I didn't get the memo...

 

its hard to say what it will be capable of because we don't know which blower it is yet. if it is one of the eaton TVS units it would be an R1900 as per THIS page. the minimum/maximum displacements for the 3 largest blowers are...
R1650 3L/5.2L
R1900 3.6L/6.6L
R2300 4.3L/7.8L
Since we do know it will be a 6.2L engine, the 1650 is too small, the 2300 is too big, the 1900 is just right.
when you look at the efficiency maps of the R1900 you can see that the max air flow seems to be at about 1900-2000 cubic meters of air per hour. easiest way to convert that into hp is to convert it into lb/min of airflow (or at least for me it is.) one cubic meter of air at sea level is approximately 2.694 lbs. when you put in (1900 m^3 / hour) * (2.694 lb / m^3) * (1 hour / 60 minutes) you get 85.31 llb/min of air. every lb/min of air is worth about 10 hp or so. so thats about an 850 hp capability of the blower. IF, and thats a BIG IF, I did my math right AND the blower the vette uses is the R1900, it should support 850 hp.

could you reverse the equation to figure out what kind of efficiency the LS9 is operating at at peak power? 650 hp is about 1450 m^3/hour of air. blower will probably be at about 8 lbs of boost. according to the map looks like it falls on the 65-70% efficiency island. Not bad considering Ive heard the old eaton blowers don't operate much over 50%. of course this doesn't take into account the horsepower needed to operate the blower and a lot of other stuff that I cant even think of.

Of course everything is just speculation at this point...

 

I would suspect that the cylinderheads would be the next big impediment, depsite the awesome of the LSx cylinderheads, to pass the amount of air without restriction (and the resulting build up in pressure and heat which contributes to all sorts of nastiness) you'd need 400+ cfm to do 850hp before reaching a point of diminishing returns.

 

ford doesnt seem to have a problem producing 700+ hp with twin screws on heads that flow less than LS3 heads. look at the FI 3800 V6 guys making 500-600 hp with heads that flow like ***.