Has anyone put a Vortech or ProCharger on their C3 ????

Y

YouCanCallMeDave

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Im giving this some consideration but would want it done professionally. I have an L88 Hood on my Big Block Vette so I think theres room. Id like to know if anyone has had it done, its added performance, its sound level, complications, tips, etc . Pictures would be superb. Thanks, Dave.
 
Great question. I have a C3 BB and also a C3 SB. Putting a centrifugal supercharger in is interesting.. Like to know more about it. Have a centrifugal in my 08 ..580 rwph. The centrifugal has a great advantage..below 2000 rpm it has no effect (well a tiny bit) on engine performance. So the car has stock performance and stock fuel economy. It's when engine rpm gets up to 3000 rpm that the centrifugal superchargers really cause the nose to lift and also push back into the seat...all the time, at 60, 70, 80 ...etc mph, you don't want the rear wheels to light up on a shift. A control issue.
 
I have a small block with a Vortech and it is too wide to fit in engine compartment. A big block would be even worse. Maybe with some custom brackets it might be possible but there isn't much room for the super charger near inner fender and edge of hood opening.
 
Motivational said:
I have a small block with a Vortech and it is too wide to fit in engine compartment. A big block would be even worse. Maybe with some custom brackets it might be possible but there isn't much room for the super charger near inner fender and edge of hood opening.
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Im also considering Wieands 177 Blower for oval port Heads . Theres a couple on Youtube that look interesting.
 
The only setup that might be easy to fit is the reverse mount/rotation LT1 setup. The others have packaging issues in a C3 with the A arm and the hood.
 
DC3 said:
Lars has installed a VorTech. You'll have to venture over to the "other" forum but you'll want to check out these threads:

http://forums.corvetteforum.com/c3-...-photos-670-horsepower-383-built-by-lars.html

http://forums.corvetteforum.com/c3-...charged-383-engine-installation-progress.html

DC
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The links were interesting. It can be done, but with great finesse and modification. Not sure now if I want to go to that length . I may consider nitrous to get me the additional 150 h.p. instead of Vortech . Will be a whole lot cleaner , easier, and my motor is forged everything so it can take it.
 
F 2 and a BB won't work as a side mount. The have all the mounting dimensions on procharger's site.
 
How much power does your motor put out now? I did a 565 pump gas motor that made 820 horse power and is very streetable. One of our 496 pump gas motors made over 700 and had 690 ft lbs of torque also. You wouldn't need a super charger or nitrous then.
 
Twin_Turbo said:
No intercooler, wouldn't be my choice
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I have an A&A centrifugal supercharger on my 08. It has, what appears to be, a pretty large intercooler. Andy Green, who produces the A&A Supercharger, is very proud of his large intercooler. I think it's made by Griffith aluminum radiators. It's large, but once installed, it's not really that noticeable by looking into the front grill area of a C6. The A&A supercharger installation has a very factory look to it.

The intercooler is only needed for sustained supercharger boost. The A&A supercharger is a Vortec centrifugal supercharger. Driving aggressively on the street and freeway, I just rarely go over 2000 rpm. The supercharger is pretty much ineffective at less than 3000 rpm. I think at 2000 rpm, it produces 1/2 psia of boost. ( 8 1/2 psia at 6500 rpm) The 6.2 liter LS3 engine is amazingly powerful on its own...without a supercharger. Anytime I've gone above 3000 rpm, where the supercharger is really starting to work, it's only been for a few seconds...really didn't need an intercooler. Anyhow, the A&A supercharger kit is really well engineered...and I think that many long minutes of supercharger action at 3000+ rpm, his intercooler will be necessary.
..............

An unpaid solicitation. Since the centrifugal supercharger is pretty much ineffective at rpm's less than 2000, and since a C6 can drive aggressively in street and highway traffic at less than 2000 rpm with stock hp, the centrifugal supercharger doesn't noticeably effect street/highway performance and doesn't effect fuel consumption when driven as a street/highway car...and it meets California smog requirements. It means my wife can drive the car...she's been warned not to press the gas pedal to the floor! At 3000 rpm, the car's performance just explodes. Unlike a roots blower, the centrifugal just keeps pouring on power right up to the red line. Roots blowers will typically flat line before redline.
 
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I did it on my 78, Procharger D1SC, front mounted 31" intercooler where the vacuum tank used to be, it fits. Grinds on the hood, Ive been considering a naca duct.

Install thread around here somewhere, if not here then on motorgen.
 
enkeivette said:
I did it on my 78, Procharger D1SC, front mounted 31" intercooler where the vacuum tank used to be, it fits. Grinds on the hood, Ive been considering a naca duct.

Install thread around here somewhere, if not here then on motorgen.
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Hi. I would be very very interested in seeing pics of this please. Im considering it for my 1970 Big Block Vette -- would probably not do the Intercooler though . So, please send whatever you have to me including writeup, tips, anomolies encountered, if you could . Many thanks, Dave
 
Do a search for procharger install thread on motorgen, if you cant find anything here.
 
enkeivette said:
68/70Vette said:
Twin_Turbo said:
No intercooler, wouldn't be my choice
Click to expand...

I have an A&A centrifugal supercharger on my 08. It has, what appears to be, a pretty large intercooler. Andy Green, who produces the A&A Supercharger, is very proud of his large intercooler. I think it's made by Griffith aluminum radiators. It's large, but once installed, it's not really that noticeable by looking into the front grill area of a C6. The A&A supercharger installation has a very factory look to it.

The intercooler is only needed for sustained supercharger boost. The A&A supercharger is a Vortec centrifugal supercharger. Driving aggressively on the street and freeway, I just rarely go over 2000 rpm. The supercharger is pretty much ineffective at less than 3000 rpm. I think at 2000 rpm, it produces 1/2 psia of boost. ( 8 1/2 psia at 6500 rpm) The 6.2 liter LS3 engine is amazingly powerful on its own...without a supercharger. Anytime I've gone above 3000 rpm, where the supercharger is really starting to work, it's only been for a few seconds...really didn't need an intercooler. Anyhow, the A&A supercharger kit is really well engineered...and I think that many long minutes of supercharger action at 3000+ rpm, his intercooler will be necessary.
..............

An unpaid solicitation. Since the centrifugal supercharger is pretty much ineffective at rpm's less than 2000, and since a C6 can drive aggressively in street and highway traffic at less than 2000 rpm with stock hp, the centrifugal supercharger doesn't noticeably effect street/highway performance and doesn't effect fuel consumption when driven as a street/highway car...and it meets California smog requirements. It means my wife can drive the car...she's been warned not to press the gas pedal to the floor! At 3000 rpm, the car's performance just explodes. Unlike a roots blower, the centrifugal just keeps pouring on power right up to the red line. Roots blowers will typically flat line before redline.
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Nope, no, no... and no.
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What does the "Nope, no, no...and no comment mean?" Every thing I stated is, to my believe, very accurate. What specifically do you disagree with? I'd be interested in knowing. My A&A Vortec centrifugal supercharger puts out 8 1/2 psia at 6500 rpm. It dyno'd at 580 rwhp at 6500 rpm. With a 15% transmission/differential loss, that's about 670 flywheel horsepower. For stock LS3 engine, 670 hp at 6500 rpm is about all you'd want to push.
 
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Intercoolers are not only needed for sustained boost. It depends on your app and how close you are pushing detonation. You may need it with even quick part throttle boost.

Centrifugals blowers are effective below 3k rpm, they instantly produce boost, just more of it with more rpm.

Roots blowers do not stop producing boost at redline. Although I would agree that centrifugals produce more boost with rpm, and roots blowers produce max boost at a lower rpm.

There may be a street legal kit for your C6, but there is not one for the C3.

And blowers absolutely affect fuel economy all the time. It is a constant parasitic loss. Not to mention, they force so much air even at idle, even with the BOV open, that more fuel must be added to keep the AFR constant.
 
enkeivette said:
Centrifugals blowers are effective below 3k rpm, they instantly produce boost, just more of it with more rpm.
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Respectfully disagree. The centrifugal blowers have an rpm squared pressure characteristic. I mentioned 2000 rpm as the ineffective rpm range. At 2000 rpm, the turbine is only turning 15,000 rpm. This produces, I'm told about 1/2 psi, which doesn't do too much to engine power. At 6500 rpm, its turning 48,750 rpm...which produces about 8 1/2 psi. Because, the centrifugal supercharger pressurization is entirely dependent on engine rpm, .. and it's a rpm squared function, they don't instantaneously produce boost. What instantaneously produces boost is a Roots supercharger. Every time a Roots supercharger make one rotation, it produces a unit of air into the engine...this same unit per engine rotation at 1000 rpm or 5000 rpm. Everytime you bobble the throttle on a roots engine, the engine fuel computer will dump gasoline into the engine. With a roots its easy to get low mileage ratings with this fuel dump characteristic. With a centrifugal, bobbling the throttle at low engine rpm, won't cause any response much more than a stock car. The centrifugal will allow you to get near factory fuel mileage on the freeway/street. Look at the mpg ratings for the roots supercharged Corvette, Cadillacs, Camaros...they are really low. At 2000 rpm, my centrifugal supercharged C6 will get at least stock 27 mpg fuel mileage....mainly because the centrifugal charger is only minimally charging boost. Reluctantly I bring up the issue...with the centrifugal supercharger and 2000 rpm on the freeway..70 mph...my engine fuel consumption instantaneous reading is 30 mpg. The slight boost in air pressure could make the engine for efficient...or the other consideration is that the stock 50 pounds/hour injectors were replaced with 60 pounds/hour injectors. I suspect the 30 mpg rating may not be accurate. Maybe the injector change (50 to 60 pounds/hour) has spoofed the engine computer into showing an incorrect mileage figure.

Getting one of these A&A centrifugal superchargers into a C3 with a LS3 engine would be just dynamite. 680 hp (?) with an all aluminum small block. ...you'd put a lot of early C3 big blocks on the trailer.
 
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