Blowers?
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Joined: Oct 2001
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From: boothbay maine
Blowers?
i am thinking about putting a blower on my 1980, i am planning on boreing it to 383 first and reworking it, but putting a blower on afterwood, is this possiblle, how much do they cost? what mods need to be done with it? and are there any websites that you can buy one at. thanks
Melting Slicks
Joined: Apr 1999
Posts: 3,264
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From: Toms River NJ
Re: Blowers? (scorciae)
http://www.summitracing.com http://www.jegs.com
You should consider using forged crank, rod, and pistons as well as a roller cam to avoid valvee float cause you will probably rev it high b/c of the high RPM HP. They can cost anywhere from 1500 up to 4000+ depending on style (roots or certifigual) and how much boost, and companies.
You should consider using forged crank, rod, and pistons as well as a roller cam to avoid valvee float cause you will probably rev it high b/c of the high RPM HP. They can cost anywhere from 1500 up to 4000+ depending on style (roots or certifigual) and how much boost, and companies.
Pro
Joined: Feb 2002
Posts: 536
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From: Lutz FL
Re: Blowers? (scorciae)
The main mod you will need to do is keep your compression ratio low when you rebuild the engine. You almost have to stay below 9.5:1 to run on pump gas once the blower goes on, and really unless you are going to run low boosts 8.5:1 is better.
Other than that, no big deal really if you have the $. Overall I think the best choice for dollars/benefit with a carburated car is the procharger.
http://www.procharger.com/
I've spent a while looking at them, and the only other really good choices are a Whipple, or Latham Axial (which is out of business)... And their prices are a lot higher.
Other than that, no big deal really if you have the $. Overall I think the best choice for dollars/benefit with a carburated car is the procharger.
http://www.procharger.com/
I've spent a while looking at them, and the only other really good choices are a Whipple, or Latham Axial (which is out of business)... And their prices are a lot higher.
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Re: Blowers? (scorciae)
If you go with a supercharger they like to spin the motor tighter then a blower. A supercharger makes boost in relation to rpm. The higher the rpm the more boost it produces. Bottom end is not helped. Below about 3000 there is no boost.
With a blower the boost is always right there. At 1500 you can feel it. If you pull away from a light it is right there if you want. It is not rpm dependant but throttle positon dependant. No throttle no boost.
I spent about $6500 CDN for a 8-71 and linkage and 2 850 double pumper
carbs. I spent another 3 changing my high compression nitrous motor and heads over to 8.1 blower motor.
Blower motors are not as effected by cams and do not need to be spun as tight as superchargers
The image of a blower sticking through the hood and the whine sure makes people take notice.
My wifes bonneville has a blower and gives 8 pounds of smooth boost.
A supercharger is easy to hide but unless you are flogging it it doesn't help.
With a blower the boost is always right there. At 1500 you can feel it. If you pull away from a light it is right there if you want. It is not rpm dependant but throttle positon dependant. No throttle no boost.
I spent about $6500 CDN for a 8-71 and linkage and 2 850 double pumper
carbs. I spent another 3 changing my high compression nitrous motor and heads over to 8.1 blower motor.
Blower motors are not as effected by cams and do not need to be spun as tight as superchargers
The image of a blower sticking through the hood and the whine sure makes people take notice.
My wifes bonneville has a blower and gives 8 pounds of smooth boost.
A supercharger is easy to hide but unless you are flogging it it doesn't help.
