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Ok. So here's the plan. Budget as all can be. And in the spirit of hot rodding. (using what you have and making it go fast) I got an 87 with a 305. (sad 305 noises) and I'm going to absolutely blow this motor. Figuratively and literally. Motor is in good shape 32k on it. I picked up some hooker 2460 headers for like 100 bucks. Y piped them bad boys out the side. Next is the power adders. I can't afford 3k on a blower and the bastard is carbed so I can just grab ye olde 144 blower on every Chevy out there. So what cars came stock with a blower I could use on this block. Or a centrifugal that I could fabricate a mount for. It's not serpentine but hey. A grinder and paint will make me the welder I ain't. After I get a solid power adder I'll select the cam for the application. I do plan on swapping that rear end out. Has the 2.73 I believe. Going for 3.23 limited or posi.
I would recommend that you also take a Turbocharger for consideration as well.
Other than a very expensive Twin-Screw Supercharger; a Turbocharger is going to be the most efficient compressor type power-adder.
Decent Turbochargers have also become much more affordable... especially when looking at the Power/ Dollar ratio.
Nitrous-Oxide is going to be the only type of power-adder that has a better Power/ Dollar ratio.
The only downside to going with a Turbocharger is the amount of fabrication work needed unless purchasing a pre-made kit...
That however would defeat the entire cost savings strategy.
You are not likely going to find any vehicles that came with a small Roots Supercharger intended for a Carburetor.
Also most Roots Superchargers are terribly inefficient; unless you get into the High-Helix/ Twin-Vortices designs.
You could find something with a Centrifugal Supercharger... but you would still have to find bracketry, a Belt Tensioner, and all the Pulleys that will fit your Engine/ Vehicle.
I would recommend that you also take a Turbocharger for consideration as well.
Other than a very expensive Twin-Screw Supercharger; a Turbocharger is going to be the most efficient compressor type power-adder.
Decent Turbochargers have also become much more affordable... especially when looking at the Power/ Dollar ratio.
Nitrous-Oxide is going to be the only type of power-adder that has a better Power/ Dollar ratio.
The only downside to going with a Turbocharger is the amount of fabrication work needed unless purchasing a pre-made kit...
That however would defeat the entire cost savings strategy.
You are not likely going to find any vehicles that came with a small Roots Supercharger intended for a Carburetor.
Also most Roots Superchargers are terribly inefficient; unless you get into the High-Helix/ Twin-Vortices designs.
You could find something with a Centrifugal Supercharger... but you would still have to find bracketry, a Belt Tensioner, and all the Pulleys that will fit your Engine/ Vehicle.
Good luck and have fun!
I'm thinking more centrifugal. As far as bracketry goes, I don't need AC. If I could find a scrapyard one I could put it where the compressor is. Fabricate bracketry so that I don't need a tensioner but rather it's built into the mounting. I just don't know what cars to look for that might of had one. My problem with turbo is I'm keeping it carbed and I like my exhaust how it is lol.
You can still use a Carburetor with a Turbocharger...
The same way that you would modify the Carburetor for a Centrifugal Supercharger; is what you would do for a Turbocharger.
You can still use a Carburetor with a Turbocharger...
The same way that you would modify the Carburetor for a Centrifugal Supercharger; is what you would do for a Turbocharger.
I'm still the new guy to power adders. That's why I'm doing it on a 305 with budget stuff. Wont spend a few grand to blow something up. Ain't got a clue how to modify the carb. Ain't got a clue how to get oil to the thing. Kindof a "as I go" situation. Seeing what works and what doesn't. I'm not going to run an intercooler because I plan to keep it under 5psi boost. So that saves some of the problems I guess
You can still use a Carburetor with a Turbocharger...
The same way that you would modify the Carburetor for a Centrifugal Supercharger; is what you would do for a Turbocharger.
Also. In my eyes, a turbo is kindof a out of the question power adder. From what I know atleast, aside the exhaust work needed I would need some sort of a programmer for a blowoff valve. If not either way a blowoff valve. To me it's more work and more money than just getting some metal and a scrapyard blower and having a day.
Aston, Jag, Mercedes... all used factory eaton blowers as well as a hole mess of 90's gm and ford v6's.
The M90 used on some v6s like the t-bird super-coupe can be modified to move enough air to get a ponycar into the 10's.
The problem with the factory superchargers, as well as most turbos and centrifugal blowers, is that they are not sealed against fuel so running a draw-through carb will wipe out the bearings and otherwise destroy them.
Aston, Jag, Mercedes... all used factory eaton blowers as well as a hole mess of 90's gm and ford v6's.
The M90 used on some v6s like the t-bird super-coupe can be modified to move enough air to get a ponycar into the 10's.
The problem with the factory superchargers, as well as most turbos and centrifugal blowers, is that they are not sealed against fuel so running a draw-through carb will wipe out the bearings and otherwise destroy them.
So what's the fix than? Say I went and picked up a m90. Put it with a blowthrough carb. And didn't want to blow a bearing. What would I do?
I am moving away from using a Twin-Screw Super-Charger... and going to Twin Turbochargers.
It is a PSI Supercharger with a lot of use...
You would need to have the seals replaced and fitted.
You can have it for $100 plus shipping.
... the only down side is that you are going to have to change to Mechanical Fuel-Injection and buy a whole lot of Methanol.
Some fabrication will be needed so you can install the Supercharger on a lower Intake Manifold for a SBC instead of a Hemi.
I am moving away from using a Twin-Screw Super-Charger... and going to Twin Turbochargers.
It is a PSI Supercharger with a lot of use...
You would need to have the seals replaced and fitted.
You can have it for $100 plus shipping.
... the only down side is that you are going to have to change to Mechanical Fuel-Injection and buy a whole lot of Methanol.
Some fabrication will be needed so you can install the Supercharger on a lower Intake Manifold for a SBC instead of a Hemi.
**** at that point I might as well just get a hemi! I want to make atleast one pass before the 305 blows up lol
Battery operated too. No turbo lag. Instant boost at the squeeze of the trigger.
