I've been joking around for a while now about a "Maximum Bob" turbo V6 but I think with the current gas prices a turbo V6 could actually attract a lot of buyers.

Base 300 hp DI V6 and a 400+ hp turbo V6.

 

I'd buy it.

 

I already own a turbo V6. Love it. The turbo V6 F-body has been done ('89 Turbo TA), and was/is awesome. GM should do it again!

Having said that, a naturally aspirated V8 must be on the option list.

 

Given the choice between a 400hp turbo 6 and a 400 hp NA V8, I'll take the turbo 6, it will be faster and get better mileage(not much but maybe 1-2) and be easy to mod granted it isn't made out of glass. Not to mention it will probably be lighter, again not by much but 100lb's is possible.

 

I have two Turbo6 F-Bodies (89 Turbo T/A and a 92 Z28 I converted) you know I'd be all over it.
A GM ad with a GN fading into a 5th gen with the tag line like "We did it again..." would be great!

 

Put me down for one

 

turbo cars don't really get any better mpg then there couterpart NA V8 cars.
Therefore I can't see a reason for GM to do it.

 

Why would it be faster?

 

Because of the blow off valve noise.

 

I don’t think it will be meaningfully lighter (or heavier), although the weight should be a little farther back.

But the modern Turbo, DI, VVT engines (LNF and the 6 in the 335) have flatter torque curves than anything I’ve ever seen attributed to a NA V8.

 

More torque than a NA V8 can make. GN's made more torque with 3.8l than Corvette's did with 5.7l.

 

Sky Redline (2.0 with DI and a turbo): 19/28 MPG & 260hp
Base Sky (2.4 NA with port injection): 19/25 MPG & 173hp

I can only assume that a Sky with a LY7 (3.6 port injection V6) would get worse mileage than either of the fours do to parasitic losses.

I think that a twin turbo V6 Camaro could actually return better mileage than the base (NA) V6.

 

Why would it need to be a twin turbo? The Grand Nationals did'nt seem to need more than one 20 years ago to beat up on most other cars on the road.

 

It wouldn't need to have two turbos but two small turbos would spool-up faster than one bigger one. That probably wouldn't matter to the drag guys, but I want a daily driver.

 

Assuming the base NA V6 is the Direct Injected one....would it? Problem is, GM doesn't have a NA Direct Injected I-4 from which to judge.

I guess my question is, does a modest (OEM) Turbocharger always increase fuel economy?