what might happen??
what might happen??
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Senior User
Joined: Jan 2003
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From: Balfour
what might happen??
KInda figured that, would it run lean and kill it?? or.....
lets say I got a smaller fan on there, like 1000cfm....
Sorry for dumb questions but this idea has been bugging me for probaly close to 8 months now.
lets say I got a smaller fan on there, like 1000cfm....
Sorry for dumb questions but this idea has been bugging me for probaly close to 8 months now.
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
what might happen??
It will still kill it.
It's not a dumb question. In fact I was experimenting with the same idea and testing it with a big garage vac. (the blow side) This was when I was a kid and my parents were wondering what I was trying to vacuum out of the engine in the driveway!
What you are trying to do is a blow-through approach like turbochargers do. The carb. has to be reworked for blow-through applications. There's a lot of reworking, sealing, recalibrating, etc. and I think the limit is about 10lbs. boost.
Pick up the S-A design book on Holley carbs, they explain the mods needed for blow-through and draw-through turbos.
Barry
It's not a dumb question. In fact I was experimenting with the same idea and testing it with a big garage vac. (the blow side) This was when I was a kid and my parents were wondering what I was trying to vacuum out of the engine in the driveway!
What you are trying to do is a blow-through approach like turbochargers do. The carb. has to be reworked for blow-through applications. There's a lot of reworking, sealing, recalibrating, etc. and I think the limit is about 10lbs. boost.
Pick up the S-A design book on Holley carbs, they explain the mods needed for blow-through and draw-through turbos.
Barry
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
what might happen??
Thinking about it a little more, a regular fan can't compress air very well, maybe a couple pounds that's it. Then they just start to make funny noises as it cavitates. You need something with more positive displacement like a roots blower or a turbo.
Barry
Barry
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Joined: Jan 2003
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From: Balfour
what might happen??
Thanks for the input, I'll have to check this out more. The victum is going to be a beat up 360 if I end up testing this idea out... Gotta do something with all my junk before it turns to massive heaps of rust in my yard.
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