Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

> Horizontal Fans, Again, sorry...
Rod
post Sep 6 2009, 12:39 PM
Post #1


Senior Member
***

Group: Members
Posts: 617
Joined: 1-January 08
From: Farnham UK
Member No.: 8,526
Region Association: England
So I want to get a fresh block and rebuild a 2270 street engine. I have always loved the look of horizontal fans and would really like to integrate this into the build.

I have seen a few, (even an electric one) but which would be recommended? Would it be worth looking into building a 90 degree coupling? (or would it be too power sapping) - I have access to lots of billet and machinery, so If anyone has done such a thing I would be very interested to see what you have done.

Anybody running a HF in a Fourteener? Would love to see pics if so.

Thanks in advance.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
3 Pages V  1 2 3 >  
 Reply to this topicStart new topic
Replies(1 - 19)
Johny Blackstain
post Sep 6 2009, 12:41 PM
Post #2


Walnut Elite Stratocaster player
****

Group: Members
Posts: 3,434
Joined: 5-December 06
From: The Shenandoah River
Member No.: 7,318
Region Association: MidAtlantic Region
and/ or a six?
(IMG:style_emoticons/default/popcorn[1].gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
URY914
post Sep 6 2009, 12:42 PM
Post #3


I built the lightest 914 in the history of mankind.
****************************************************************************************************

Group: Members
Posts: 132,067
Joined: 3-February 03
From: Jacksonville, FL
Member No.: 222
Region Association: None
RacerChris has one in his race car.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Rod
post Sep 6 2009, 12:45 PM
Post #4


Senior Member
***

Group: Members
Posts: 617
Joined: 1-January 08
From: Farnham UK
Member No.: 8,526
Region Association: England
QUOTE(Johny Blackstain @ Sep 6 2009, 07:41 PM) *

and/ or a six?
(IMG:style_emoticons/default/popcorn[1].gif)


This car I'm keeping as a four, it's too good and original to be rippig the four out for a six. This is my first 914, don't worry a Six or a six conversion is somewhere in the future, but this one is a keeper and I really want to keep it a.) Narrow b.) 4-cyl.

(IMG:style_emoticons/default/smile.gif)


QUOTE(URY914 @ Sep 6 2009, 07:42 PM) *

RacerChris has one in his race car.



Thankyou, I have looked on his website and can't see any pics of the engine installation (IMG:style_emoticons/default/sad.gif) Any of the forum?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Sep 6 2009, 01:11 PM
Post #5


Custom Member
***************

Group: Members
Posts: 24,705
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Chris uses a modifed Corvair horizontal fan.
Search on the internet for the Corvair fan setup.

Check the two or three German tuners that specialize in type4 motors. (look at tunacans type 4 secrets links page) and you should find a setup that is still being sold.

If you want to make it yourself, look for a 90 degree industrial gearbox...McMaster Carr and MSC have them.

Not that I have thought about this.....(IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Rod
post Sep 6 2009, 01:17 PM
Post #6


Senior Member
***

Group: Members
Posts: 617
Joined: 1-January 08
From: Farnham UK
Member No.: 8,526
Region Association: England
Thanks, Reichert - http://www.riechertmotorentechnik.de/

Found this too, which setup is this?? http://www.youtube.com/watch?v=5XvtFcKmuKc

Also LA Performnce do a kit, right here in the UK - http://www.laperformance.co.uk/Fan_Conversions.html

This very interesting setup over on Spiderforums - I like this a lot..

Attached Image

http://www.spyderclub.com/phpBB2/viewtopic.php?t=9065
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Sep 6 2009, 05:45 PM
Post #7


Send me your transmission!
***************

Group: Members
Posts: 23,041
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Get parts form a corvair and save some $$$
Check out my bus build thread here and you can see my corvair engine.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Aaron Cox
post Sep 6 2009, 05:47 PM
Post #8


Professional Tinkerer
***************

Group: Retired Admin
Posts: 24,548
Joined: 1-February 03
From: Corona, CA
Member No.: 219
Region Association: Southern California
i doubt youll gain anything....

you'll pick up some drag (pulleys and or gear drive) and probably won't cool as evenly as other options......
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
iamchappy
post Sep 6 2009, 05:56 PM
Post #9


It all happens so fast!
****

Group: Members
Posts: 4,893
Joined: 5-November 03
From: minnetonka, mn
Member No.: 1,315
Region Association: Upper MidWest
Marty's...


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JazonJJordan
post Sep 6 2009, 06:25 PM
Post #10


Member
**

Group: Members
Posts: 340
Joined: 6-June 09
From: Atlanta-Augusta, Georgia area
Member No.: 10,446
Region Association: South East States
That just made me (((cry)))

........1995 and still... (IMG:style_emoticons/default/hissyfit.gif) .beautiful !!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
number6
post Sep 6 2009, 06:43 PM
Post #11


Member
**

Group: Members
Posts: 352
Joined: 14-September 08
From: portland, or
Member No.: 9,546
Region Association: Pacific Northwest
http://forums.pelicanparts.com/showthread....97138&pp=20

http://www.914world.com/bbs2/index.php?sho...amp;hl=riechert

http://www.tangerineracing.com/Engine.htm
(scroll to bottom of page)


Another pix of a Reichert setup:


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
URY914
post Sep 6 2009, 07:46 PM
Post #12


I built the lightest 914 in the history of mankind.
****************************************************************************************************

Group: Members
Posts: 132,067
Joined: 3-February 03
From: Jacksonville, FL
Member No.: 222
Region Association: None
QUOTE(Aaron Cox @ Sep 6 2009, 04:47 PM) *

i doubt youll gain anything....

you'll pick up some drag (pulleys and or gear drive) and probably won't cool as evenly as other options......


Aaron is that you???
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
orange914
post Sep 6 2009, 10:54 PM
Post #13


http://5starmediaworks.com/index.html
****

Group: Members
Posts: 3,371
Joined: 26-March 05
From: Ceres, California
Member No.: 3,818
Region Association: Northern California
QUOTE(Aaron Cox @ Sep 6 2009, 04:47 PM) *

i doubt youll gain anything....

you'll pick up some drag (pulleys and or gear drive) and probably won't cool as evenly as other options......

sling belts too. ewww corvair cooties (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
veltror
post Sep 7 2009, 09:56 AM
Post #14


Senior Member
***

Group: Members
Posts: 930
Joined: 27-April 08
From: Potters Bar Herts UK
Member No.: 8,978
Region Association: None
My mate in Southern germany had one on his 2.4. he did not recommend it at all, belts did not last long. After a year or so he sold it and went to an upright fan system... My 2.4 will be started soon not sure if the original fan is good enough...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
zymurgist
post Sep 7 2009, 10:06 AM
Post #15


"Ace" Mechanic
*****

Group: Members
Posts: 7,411
Joined: 9-June 05
From: Hagerstown, MD
Member No.: 4,238
Region Association: None
I wonder if the Corvair type belts are special, i.e. designed to flex in multiple planes, as opposed to normal V-belts. My John Deere "mule drive" takes the horizontal shaft output and converts the motion to vertical drive for the mower deck. I always buy belts for it at the JD dealer, because I tried a generic auto parts store belt once and it didn't last long.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
DBCooper
post Sep 7 2009, 11:23 AM
Post #16


14's in the 13's with ATTITUDE
****

Group: Members
Posts: 3,079
Joined: 25-August 04
From: Dazed and Confused
Member No.: 2,618
Region Association: Northern California
Later Corvairs were modified so there was an adjuster with spring tension on the belts rather than just a rigid adjuster. That was the end of thrown belts.

Flat=direct air flow, vertical=indirect air flow, so what physical reason could explain why a well-designed flat cooling system with horizontal fan would cool any less efficiently than a well-designed vertical fan and shroud? Talking about cooling efficiency, not drive loss.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Sep 7 2009, 11:24 AM
Post #17


Custom Member
***************

Group: Members
Posts: 24,705
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Again, talk to Chris Foley...he seems to have figured out the trick to keeping belts.

Porsche used the horizontal fans on most of the big motors in the race cars...might be something to that.

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Sep 7 2009, 11:39 AM
Post #18


Send me your transmission!
***************

Group: Members
Posts: 23,041
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
I have never seen the spring tension type and I have the later 65-69 style set up.

The trick to keeping the belts from flying off is actually to have them at the correct tension. Most people over tighten them and that is what results in slipping and tossing. I get my belts from a corvair parts only yard (you can get them from Clarks, Opus, etc.). I cna take a look at the belt and see if it is a particular type.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
zymurgist
post Sep 7 2009, 11:57 AM
Post #19


"Ace" Mechanic
*****

Group: Members
Posts: 7,411
Joined: 9-June 05
From: Hagerstown, MD
Member No.: 4,238
Region Association: None
QUOTE(r_towle @ Sep 7 2009, 01:24 PM) *

Porsche used the horizontal fans on most of the big motors in the race cars...might be something to that.


I thought Porsche used aircraft quality bevel gears to drive those vertical fans... at the RPMs they ran, a belt would have been a weak link. Really cool stuff but way too spendy for a street car.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Sep 7 2009, 04:27 PM
Post #20


Engine Surgeon
*****

Group: Members
Posts: 9,398
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
QUOTE(zymurgist @ Sep 7 2009, 10:57 AM) *

QUOTE(r_towle @ Sep 7 2009, 01:24 PM) *

Porsche used the horizontal fans on most of the big motors in the race cars...might be something to that.


I thought Porsche used aircraft quality bevel gears to drive those vertical fans... at the RPMs they ran, a belt would have been a weak link. Really cool stuff but way too spendy for a street car.


Correct. Driven directly from the center of the crankshaft.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

3 Pages V  1 2 3 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Switch to: Standard · Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 2nd April 2026 - 01:02 PM
Invision Power Board v9.1.4 © 2026  IPS, Inc.
...
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...