 Jake Raby: Cooling system testing, reichert tuning? |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| Aaron Cox |
 Nov 28 2004, 01:48 PM
Post
#1
|
|
Professional Lawn Dart  Group: Retired Admin Posts: 24,542 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California  |
title says it all, have you tried the horizontal fan system from reichert? at the autocross, saw a guy running this setup on a 2.7L type IV monster...
looked cool...but does it cool? |
   |
 
|
  |
Replies
| lapuwali |
Dec 2 2004, 03:49 PM
Post
#2
|
|
Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743  |
Pressure is generated by volume trying to move through a space that's too small to contain it. The fan (any fan) generates volume. The pressure is generated by the restrictions in the system after the fan. At some point, the pressure on the "blown" side of the fan (as opposed to the suction side) will reach a point where the fan stalls aerodynamically, and no more flow (volume) will be generated. The difference between a "low pressure fan" and a "high pressure fan" is how high this point is: how high the pressure on the blown side will be before the fan stops moving air.
The 911 axial fan has a lower pressure point than the Bug centrifugal fan, so it can't generate as much pressure inside the shroud, and quickly stops delivering volume due to the higher restriction present in the Type IV cooling shroud than the larger 911 shroud. The Bug fan keeps delivering air despite the restriction. It's still volume that's doing the cooling, and the Bug fan can provide it into the smaller space. The 911 fan can't. It works on the 911 because the shroud and the air exits are larger, so the pressure doesn't go up as high, and the fan never stalls. |
|
|
|
Posts in this topic
Aaron Cox Jake Raby: Cooling system testing Nov 28 2004, 01:48 PM
Elliot Cannon Isn't that the one that goes from a verticle p... Nov 28 2004, 01:54 PM Aaron Cox thats what ive been reading.... Nov 28 2004, 02:01 PM Carrera916 Reichert fan? The electric one? Do you have a webs... Nov 28 2004, 03:10 PM Aaron Cox belt drive... crank pullry to 90 degree pully to f... Nov 28 2004, 03:13 PM nebreitling i agree! it seems like an electric fan (or tw... Nov 28 2004, 03:14 PM Aaron Cox http://www.ismi.net/riecherttuning/ibr18.jpg
http:... Nov 28 2004, 03:18 PM synthesisdv here is one electric setup I have seen.
don't... Nov 28 2004, 03:29 PM synthesisdv more found...
I have also seen a rig with one big... Nov 28 2004, 03:34 PM Dominic <... Dec 2 2004, 12:43 PM Jake Raby You'll never understand it that way! I tho... Dec 2 2004, 02:43 PM Jake Raby And thats why 911 fans belong on 911 engines- they... Dec 2 2004, 04:00 PM Reiche Thanks for the answers guys and sorry for the thre... Dec 3 2004, 12:12 PM Jake Raby The stock 914 system needs restriction under the c... Dec 3 2004, 12:37 PM Britain Smith I got Type-1 tins like you suggested and they are ... Dec 3 2004, 12:52 PM Jake Raby Yep, they are just flat... Thats the key, you don... Dec 3 2004, 12:57 PM Reiche ... Dec 3 2004, 01:06 PM Jake Raby They weren't making 50HP per cylinder and stil... Dec 3 2004, 01:10 PM Mueller that is why water cooling is better !!... Dec 3 2004, 01:11 PM Britain Smith ... Dec 3 2004, 01:28 PM Mark Henry QUOTE
Britain Smith Mark Henry With the 911 type I don't know which deflector... Dec 3 2004, 01:41 PM Britain Smith As Jake knows, I also have the advantage to be run... Dec 3 2004, 01:44 PM
Mark Henry Don't matter.
BTW me too! Dec 3 2004, 01:49 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 15th July 2025 - 01:25 AM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.