LT4 Anyone Read This Month's Vette Magazine Regarding the Supercharged LT4?

[megatron]

If not, check out the August 2005 issue of Vette Magazine. On pages 24-26, Vette Magazine author Paul Zazarine ran a story on Rich Palais' 1996 LT4 Collector Edition Corvette.



Although I don't care for the bodywork much, I must say that I was intrigued with the supercharger setup on this car. With an intercooler, the car ran 12.09/117 mph in the 1/4 mile.



Just thought I would share this as this is the first time I have come across a supercharged LT4. Anyone else know of any supercharged LT4's?



Thanks

 

[surferdave]

supercharger

I just installed a vortech v2sq on my lt1 (same installation) with new 52mm bbk throttle body, 1 3/4 slp headers, random hiflow cats, 3" b&b exhaust, fireball ignition, 30lb injectors. Doing it yourself was a major pain in the ... but it is engineered well. Almost to the tuning stage.
dave

 

[Vettelt193]

If not, check out the August 2005 issue of Vette Magazine. On pages 24-26, Vette Magazine author Paul Zazarine ran a story on Rich Palais' 1996 LT4 Collector Edition Corvette.



Although I don't care for the bodywork much, I must say that I was intrigued with the supercharger setup on this car. With an intercooler, the car ran 12.09/117 mph in the 1/4 mile.



Just thought I would share this as this is the first time I have come across a supercharged LT4. Anyone else know of any supercharged LT4's?



Thanks

The higher compression ratio of the LT4 vs. LT1 tends to point people towards other mods over supercharging. It still works great, but the cost-benefit is not as good as it would be on a lower compression car. This same reason is why so many Mustangs are supercharged... The low compression of a stock GT, (even designed to run on regular gas) means you can really throw some boost at it if you run premium gas and get HUGE HP gains over stock. Since Corvettes already have high enough compression to need premium, we can't boost as much on a stock motor.

 

[megatron]

The higher compression ratio of the LT4 vs. LT1 tends to point people towards other mods over supercharging. It still works great, but the cost-benefit is not as good as it would be on a lower compression car. This same reason is why so many Mustangs are supercharged... The low compression of a stock GT, (even designed to run on regular gas) means you can really throw some boost at it if you run premium gas and get HUGE HP gains over stock. Since Corvettes already have high enough compression to need premium, we can't boost as much on a stock motor.

Agreed. Since doing my research, I've found that most owners who supercharge their LT4's aren't really supercharging their LT4's. Let me explain. They usually run a supercharger on a complete rebuild (heads, pistons, cranks, cam, injectors, bottom end), etc. that the engine is no longer really a LT4. 10:8 compression is very high for a supercharger.

I think I will stay the naturally aspired way.

 

[megatron]

I just installed a vortech v2sq on my lt1 (same installation) with new 52mm bbk throttle body, 1 3/4 slp headers, random hiflow cats, 3" b&b exhaust, fireball ignition, 30lb injectors. Doing it yourself was a major pain in the ... but it is engineered well. Almost to the tuning stage.
dave

surferdave,

Where did you get your headers from and how was the installation? Did you do a dyno before each mod?

Thanks

 

[CAJUN C4]

Agreed. Since doing my research, I've found that most owners who supercharge their LT4's aren't really supercharging their LT4's. Let me explain. They usually run a supercharger on a complete rebuild (heads, pistons, cranks, cam, injectors, bottom end), etc. that the engine is no longer really a LT4. 10:8 compression is very high for a supercharger.

I think I will stay the naturally aspired way.

Me Too !