Smog Pump = Supercharger?
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Joined: Aug 2002
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From: Great NW
Smog Pump = Supercharger?
It's belt driven to the same RPM as the engine, It's already on the engine, why not just reroute the tube into the carb (with a pressure box around it) and get a free blower?
Posting Guru
Joined: Feb 2002
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From: Atlanta, Georgia, USA
Smog Pump = Supercharger?
good idea, but there's no way that that little pump can supply the necessary volume to feed that engine, even at atmospheric pressure. That pump would be beyond it's capacity to even fill the engine with enough air to idle. Superchargers have much higher internal gear ratios in order to supply such a tremendous volume of air, which is why they create such a heavy parasitic drag on the crank. There was another post here about using an electric motor to create boost which got more technical than I can here, where somebody actually calculated the necessary volume of air required to create even a small 5 psi boost, and it was quite suprising!
'77 F100, 100% Aftermarket 302 w/C4 cruisin' through 2.75's
John F. Daly III, E.I.T.
The TorqueKing
'77 F100, 100% Aftermarket 302 w/C4 cruisin' through 2.75's
John F. Daly III, E.I.T.
The TorqueKing
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From: kansas
Smog Pump = Supercharger?
Somebody at fordsix.com was talking about strapping one on their lawnmower for a supercharger. A little off topic but it might give an idea of the capacity of one of those pumps. Even on a little 5 horse I think you'd still need to overdrive it.
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From: Southeast FLA
Smog Pump = Supercharger?
[updated:LAST EDITED ON 01-15-03 AT 09:23 PM (EST)]Ok, I admit to trying this with my 1973 Nova uh, oh, um, many years ago... What I did was to cut a hole in an air filter to stick a smog pump tube through it tightly, I used one or two layers of an ACE bandage over the end of the tube to filter it, and I stuck it through the hole in the air filter.
Granted, most of the air probably just passed right back the air filter walls, but in retrospect I guess it did, at least, supply a (more) constant pressure of air above the carburator. Guess I should have re-jetted it to actually see if I had a horsepower builder or not.
Hey, at least I admit to the stupid things I tried as a teenager...
Best,
Granted, most of the air probably just passed right back the air filter walls, but in retrospect I guess it did, at least, supply a (more) constant pressure of air above the carburator. Guess I should have re-jetted it to actually see if I had a horsepower builder or not.
Hey, at least I admit to the stupid things I tried as a teenager...
Best,
Laughing Gas
Joined: Nov 2001
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From: -
Smog Pump = Supercharger?
Diesels have turbo chargers. They require ALOT more fabrication to mod to an engine. A supercharger just bolts to the front. A turbo needs all new exhaust heads, plus a dedicated exhaust system, plus intake pipe rounting. Not an easy task.
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Joined: Jan 2003
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From: kalamazoo united states
Smog Pump = Supercharger?
but a turbo also has no drag on the engine, and can be mounted nearly anywhere in the engine compartment. Superchargers also need new intake piping, and a more open exhaust sure wouldn't hurt... Biggest drawback with a turbo as opposed to a s/c is the lag...
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From: ct
Smog Pump = Supercharger?
no..the biggest drawback to a turbo over a supercharger is price! alot more room is needed to accomodate it...alot more tuning know how is needed to get the most out of it..and they generate alot more heat than a supercharger. the lag should be the least of your worries.
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From: kalamazoo united states
Smog Pump = Supercharger?
You're not a little biased with that Vortech under the hood, are you?? Just kidding. The thing about a turbo I really like over a s/c is that if you have the fabrication know how, you can turbocharge anything.
PS - I can get a turbo a hell of a lot cheaper than s/c - my turbo for my truck cost me $200 ($500 new, I got it used)
PS - I can get a turbo a hell of a lot cheaper than s/c - my turbo for my truck cost me $200 ($500 new, I got it used)
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