Thread: Supercharger/ Blower: Where to start?

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Originally Posted by btsave

Looking at his prices, it is almost better to just get a new engine already set up with the blower!
"471 Supercharged 355 Chevy Small Block
405 Horsepower, Studded Main 350 Block with Forged 7 1/2 to 1 Compression Blower Pistons, Comp Cams Hydraulic Cam and Lifters, Complete Rotating Assembly Balanced, Double Keyed Iron Crank and Aftermarket Balancer, Roller Rockers, Polished 471 Supercharger with Billet Endplates and Drive, 3” Belt, Funny Car Style Belt Guard, Holley Blower Carb, BDS Scoop, with K&N Filter, Mallory Ignition, Set up, Run and Synchronized.
$7,697.00 Turn/Key #583 "
I sent for his catalogue just now,,, will see price of new carb/ supercharger vs. new 355 sbc...
more once I get the booklet and then call him! Thanks for the lead!

Yea I knew about Big als, going to buy a belt gaurd and a blower spacer, Just for looks If I had the cash all at once I would have bought one, hell you even get a 1 year warrenty with it. Time I get my carbs redone and what I have in trying to be a cheap skate, buying used parts that werent no good I could have bought one I know my engine builder does not give a one year warrenty on a Hi-po motor.

Since this post has alot of action I have a question, Running BBC, 671, (2) 750DPS HOLLEYS,Ronco magneto. What a good spark plug to start with?
Also I cant fiqure out which pulleys to start with? I want to run around 6lbs of boost?

Originally Posted by PRO53

Since this post has alot of action I have a question, Running BBC, 671, (2) 750DPS HOLLEYS,Ronco magneto. What a good spark plug to start with?
Also I cant fiqure out which pulleys to start with? I want to run around 6lbs of boost?

i cant not help on the mag is i never used one on the street . have a customer that runs them on boats .most of the time i am not a big fan of a much colder plugs for low rpm street use .boost is not a guarantee many things come in to play .the blower how well it seals up and the engine CID as well cr. cam.other things .so you may get close. look at the on line at the BDS pulley chart and start from there most of the time not many will repulley for more boost .. they fined out fast they have waaaaay to much to start with

Originally Posted by btsave

I am considering beefing up my 350 sbc ('78) in my '34 Ford Tudor and not really certain where to start. I have a mild cam and an currently running a 4BBL Edelbrock. Any suggestions from more experienced builders as what to start looking at? Where to go for specifics? Which inline blower to use for a street driven rod and which carb to best mate it to. Not looking to run 12 sec quarters, but would like to leave the corvette next to me behind (or at least the Saab).....

To do this right, you need to change to a supercharger cam so you do not bleed off boost from overlap. You want a tight lobe center of around 114 degrees. However, the more important question is your present compression ratio. Ideally, a compression around 8.0 or 8.5:1 if you want to use a Roots-style blower. The small 144 blower now available from Holley worked quite nicely on my 350 some years ago. You don't necessarily have to have forged pistons and forged crank with it although these parts would be preferable. I used a 750 Holley with a 50cc accelerator pump which I ran a little on the rich side just to be safe. A lean condition can spell death to a supercharged engine. The only thing I did not like about this combination was due to the 350 TH tranny. I really needed an overdrive tranny for cruising on the interstate. PM me if you have any further questions. I would have used that combination again on my present ride, but when Holley bought out B&M's blower line, they doubled the price. I built a 383 instead.

well there is more then one way to skin a cat . if any one need a good price on a blower P.M me i am dealer for a blower company . i built some blower engines and tuned them in just roots for street and marine use ... machine and built many engine s for blowers and turbos and alot of Nos to ....MY stuff holds up. can give you a very long list of guys i have work with ...if you need a blower engine and blower and dyno time all set up to Rock and Roll that can be done as well i built many at 9.5 and 10.1 with 110/112 lsa that will rip you F%ucking head off