Need EXTREMELY strong DC fan

[computerfixins]

Er i do believe your going to need alot more then 200 cfm...typical V8 is going suck around 600-1200 cfm depending on liters and compression.....

Now a rice burner(keep in mind that a 4 banger usaully runs higher compression, possible detonation)...4 banger still suck in around 400 cfm....

throwing 200 cfm in will give you maybe a 1/2hp at bottom end then atcatully hinder at higher rpm's.....also run the danger of over-twisting the fan and sucking into the motor....(always a bad thing)...

also another problem you are going to have is idle control...if you pump in 1000 cfm at a idle....or even half throttle...the mass air flow sensor is going to sense...adjust gas mixure....er etc....going run a bit erratic....Maybe use the throttle position sensor and hook up a relay to turn fan on at full throttle only?...or go one step farther and hook up a speed controller...

Thus the design of a supercharger and turbo....they hardly pump in any air in at idle.....also known as spool time(not inclduing roots)....

Also the other problem is finding a fan that actaully blow any pressure....you can find a axial fan or a duct fan that will blow 1200 cfm...but you'll never find one that can blow out at least 2.0psi....any less static pressure in the manifold will give almost no performance gains...good example was the e-ram that went around ebay scamming people out of there money....hot rod did a dyno pull and got a whole 1.5 hp increase....heh....

It has potential...and the idea is good....but not sure if eletric motor technology is advanced enoungh....yet..

If you do find a fan let us know....i found a dc axial fan(type in dc blower in search box) on ebay...still there in fact...only problem is it draws something like 117amps @ 27volts.....have to install a seprate altenator just to run the stupid thing...

[morpheus kain]

Yes I realized the many pitfalls of the DC fan. We're now working on a nice ram air setup. CAI at low speeds and a little boost at 45+MPH.

[Giblet Plus!]

Ram air is always nice. Won't help much with launches, though . . .

[Billforce]

The total btu of the fuel introduced plus oxygen to oxidize the fuel (stochiometric) plus the swept area of the pistons (volume) is what determines the H.P. of an internal combustion engine i.e. if you can pack the cylinders in excess of 100% of the volume at atmospheric pressure, then ypou cqan increase the horsepower with the same displacement engine.
Blowers, turbos etc. simply pack more oxygen into the cylinders so you can also introduce more fuel (btu´s) and increase the horsepower. The simplest way to accomplish this is the introduction of an oxygen bearing gas and fuel without the aid of mechanical devices i.e. NITROUS OXIDE. Cheapest way to build horsepower without spending a fortune. I wasn´t that smart. I have a 65 Vette 396, 425 H.P. rat motor that now builds over 600 H.P. but all with expensive parts.

[computerfixins]

Being on the bottle is cheap...but not without its dangers.....after a burn some nice little holes in the top of your stock pistons....its going cost some big bucks anyways

Either that or you do it the right way...get a fogger sytem with msd box with added retard or a jacobs...now your talking an easy 1400 bucks...Not to mention your still injecting 250 hp into stock pistons and rods...

....why not just buy some flat top pistons and a nice set of heads...and a set of pink dot rods(stock rods that have been magnfluxed and beed blasted) and maybe a lopy cam....aim for 10:1 compression....cost around 1500 bucks(use ebay!...heh)....or save up an buy a long block for 2000 bucks....wynne racing has some good ones for around 2k that produce around 350hp(i'd get a build yourself model....)