Author Topic: Forced Air Intake With A Fan  (Read 2798 times)

Offline badge

  • Jr. Member
  • *
  • Posts: 12
Re: Forced Air Intake With A Fan
« Reply #15 on: May 18, 2017, 04:52:53 PM »
Yeah, I definitely wasn't thinking about those junk ebay fans, those are a joke. I was thinking more along the lines of a good vacuum motor, just use it in a reverse sort of way. I haven't really done anything with this project yet, but I do plan on looking into it more. 12v isn't a whole lot, but the electrical system is strong in the DS, so I'm hoping it can take a heavy 12v load.
A fan blade idea will not work, just because fan blades are not designed to hold pressure with high rpms, they are just designed to move air, inefficiently. But like how the Dyson vacuum motors are made, they have a fins more like a turbo does, where they can create a suction on the one side. I'm hoping that if I use this sort of idea, but use the other side, it can create pressure, not a whole lot, but enough. Just got that itch for a little more power. ;D
say what you want . I was  drag racing with a 500+ pound quad and I was kicking some butt

Offline BigRay800

  • LifeMember
  • Hero Member
  • *****
  • Posts: 394
Re: Forced Air Intake With A Fan
« Reply #16 on: May 18, 2017, 09:14:27 PM »
 Back in the DS hay day their were 10 to 15 top notch builders that pushed the 650 to the outer limits and then some. If you could dream it up it was tried 3 different ways. What worked for one person did not work for the next. Myself I ran a turbo gt28  800 fuel injection motor with nitrous. It blew up 4 times.  So if a fan works for you try to improve on it and have fun.
Ds650 powered by Suzuki GSXR 1000 [sold]
Girl made me buy a damn RZR

Offline kevinpd1987

  • Jr. Member
  • *
  • Posts: 23
Re: Forced Air Intake With A Fan
« Reply #17 on: May 19, 2017, 01:37:53 AM »
ya im all about trying new cheap things to gain more power but i really don't think electric motors with compressor fans is the way to do it... but i am going to look into the theory a bit more now just cause i don't want to say its impossible but just unlikely to produce any significant hp gains

Offline badge

  • Jr. Member
  • *
  • Posts: 12
Re: Forced Air Intake With A Fan
« Reply #18 on: May 21, 2017, 04:13:40 AM »
I believe the one on ebay is something like 3psi . that's really not going to do much

Offline Oldmanracing

  • LifeMember
  • Hero Member
  • *****
  • Posts: 335
Re: Forced Air Intake With A Fan
« Reply #19 on: May 21, 2017, 11:00:19 AM »
 A 70 hp motor needs to flow 280 cfm. Alittle less if compression over 12 to one.
 Be sure the fan can exceed this number or you will be restricting its normal flow.

Offline Dirk1616

  • Sr. Member
  • ***
  • Posts: 52
  • Little Do A Little Good, Lotta Do A Lotta Good
Re: Forced Air Intake With A Fan
« Reply #20 on: May 22, 2017, 08:42:24 AM »
With my current mods, I'm not pushing anything close to 70hp, but I figure about 45hp I suppose, or somewhere around that range. I won't necessarily need 270cfm, but 250cfm should be good enough. This is kinda what I was thinking, or at least something along these lines.

It can hold pressure as shown on the 2nd link's 3rd page. Just a little, and plus like I said before, I'm not looking to turbo, just let the motor get the air it needs a little better.
2003 DS Baja         Riding at Bundy Hill and Silver Lake
Big Gun CDI, 11.5 JE Piston, Port/Polish, OMR Carb Mods,
Custom Mod End Cap, UNI Filter, More To Come?


* Calendar

July 2018
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 [18] 19 20 21
22 23 24 25 26 27 28
29 30 31

* Recent Posts

450 lower A Arm conversion by MRDS650
[July 13, 2018, 06:40:22 PM]

Is this board just dead? by MRDS650
[July 13, 2018, 06:35:58 PM]

I need a CDI? by BigFun421
[July 02, 2018, 06:19:36 AM]

E85 by Oldmanracing
[April 14, 2018, 07:59:13 AM]

jetting by BigFun421
[March 25, 2018, 07:07:17 AM]

Should I get a JE Piston? by Oldmanracing
[March 07, 2018, 11:26:14 AM]

Air box by Dirtclods
[March 06, 2018, 12:01:57 AM]

Looney tuned...Sand pig to HogZilla. by MRDS650
[March 05, 2018, 08:53:09 AM]

Are R.W.R and O.M.W. Still in the game? by BigFun421
[February 25, 2018, 08:13:09 AM]

Need some top end info by Dirk1616
[February 19, 2018, 03:09:49 PM]

Feel like a moron by kevinpd1987
[February 18, 2018, 09:20:30 PM]

Parting Out '00 DS650 by bob
[January 28, 2018, 06:16:56 PM]

Destroyed Engine by pugs
[January 12, 2018, 07:02:36 AM]

lost spark on left by pugs
[January 12, 2018, 06:56:58 AM]

Engine VIN ?? by Dirtclods
[January 05, 2018, 06:36:27 PM]

Seat covers by Dirtclods
[December 31, 2017, 05:14:23 PM]

charging system problems! by Dirtclods
[December 27, 2017, 11:02:30 PM]

Can anyone help me with a VIN? by Dirtclods
[December 27, 2017, 09:59:20 PM]

Need help by Dirtclods
[December 27, 2017, 09:49:36 PM]

How FAST! by Oldmanracing
[December 21, 2017, 11:50:32 PM]

Where ya going for new years? by Dirtclods
[December 21, 2017, 11:36:33 PM]

Hello from Michigan by ACEISBACK
[December 20, 2017, 08:33:58 PM]

Front shock bushings by persom55
[December 14, 2017, 08:07:58 AM]

Howdy~ From the Paradise of the Pacific Huntington Beach California by bob
[December 13, 2017, 07:25:24 PM]

Range by bob
[December 12, 2017, 06:22:20 PM]