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 )

2 Pages V  1 2 >  
 Reply to this topicStart new topic
> Will this work?, Tired of blowing dust.
Pugbug
post May 5 2005, 11:54 AM
Post #1


Member
**

Group: Members
Posts: 449
Joined: 14-February 05
From: Victoria, BC
Member No.: 3,604
My engine shroud blows the air straight down and blows dust everywhere, so I want to try these baffles I made up to blow it out my rear.

Can anyone see a reason why this would be a bad thing?


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
brant
post May 5 2005, 12:01 PM
Post #2


914 Wizard
**********

Group: Members
Posts: 11,623
Joined: 30-December 02
From: Colorado
Member No.: 47
Region Association: Rocky Mountains
don't have any personal experience.
and don't want to sound negative either...


but off the top of my head, I would think that the shroud would increase motor temps (oil and head) because it would radiate heat back and because it would prevent some heat from escaping...

again, don't take this negative and maybe temp isn't an issue for you. Nice fab work though!

brant
User is online!Profile CardPM
Go to the top of the page
+Quote Post
mattillac
post May 5 2005, 12:19 PM
Post #3


robots!
***

Group: Members
Posts: 536
Joined: 27-October 04
From: vallejo,ca
Member No.: 3,020
maybe drill some holes in it or add some louvres(?) so it's more like a diffuser than a
shield.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rhodyguy
post May 5 2005, 12:28 PM
Post #4


Chimp Sanctuary NW. Check it out.
***************

Group: Members
Posts: 22,080
Joined: 2-March 03
From: Orion's Bell. The BELL!
Member No.: 378
Region Association: Galt's Gulch
wouldn't be easier to get the proper air guide plates for your engine application?

k
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mattillac
post May 5 2005, 12:31 PM
Post #5


robots!
***

Group: Members
Posts: 536
Joined: 27-October 04
From: vallejo,ca
Member No.: 3,020
he already made the deflectors tho. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) and buying stuff costs $$$. (IMG:http://www.914world.com/bbs2/html/emoticons/lol2.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mattillac
post May 5 2005, 12:33 PM
Post #6


robots!
***

Group: Members
Posts: 536
Joined: 27-October 04
From: vallejo,ca
Member No.: 3,020
louvers...


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tat2dphreak
post May 5 2005, 12:34 PM
Post #7


stoya, stoya, stoya
*****

Group: Benefactors
Posts: 8,797
Joined: 6-June 03
From: Wylie, TX
Member No.: 792
Region Association: Southwest Region
QUOTE (rhodyguy @ May 5 2005, 01:28 PM)
wouldn't be easier to get the proper air guide plates for your engine application?

k

I was thinking the same...

if you have trouble finding them cheap, LMK, I know a guy who parted several cars last year and I have bought several parts from...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Pugbug
post May 5 2005, 12:47 PM
Post #8


Member
**

Group: Members
Posts: 449
Joined: 14-February 05
From: Victoria, BC
Member No.: 3,604
Stock air guides won't fit this shroud, so I'll try these, but keep a close eye on the temps.



Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
nebreitling
post May 5 2005, 12:49 PM
Post #9


Member Emeritus
****

Group: Members
Posts: 3,314
Joined: 26-March 03
From: San Francisco
Member No.: 478
interesting exhaust.. are those the 75-75 stubs turned backwards? giving the mating angles, i thought they would not work in that orientation?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post May 5 2005, 12:54 PM
Post #10


Resident German
*************************

Group: Admin
Posts: 41,636
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California
QUOTE (brant @ May 5 2005, 10:01 AM)
I would think that the shroud would increase motor temps (oil and head) because it would radiate heat back and because it would prevent some heat from escaping...

(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) moving air under the engine helps with cooling, that's why the factory added the "flaps" to the lower firewall in later years ...

you'll probably see higher oil temps ...
(IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) Andy
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Pugbug
post May 5 2005, 12:56 PM
Post #11


Member
**

Group: Members
Posts: 449
Joined: 14-February 05
From: Victoria, BC
Member No.: 3,604
I have no idea what the exhaust is from...Was on the car when I got it, along with twin cherry bomb mufflers. They are history now, but man was it ever loud!
I think I'll take Mattillac's suggestion and put some louvers in the baffles. I think that will minimize any radiant heat created. I'll also paint them flat black.
Thanks for the input all.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Pugbug
post May 5 2005, 05:52 PM
Post #12


Member
**

Group: Members
Posts: 449
Joined: 14-February 05
From: Victoria, BC
Member No.: 3,604
I've modified the tins....Added louvers, and cut a wider opening in the front......Thanks for the tips guys.



Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
StratPlayer
post May 5 2005, 05:55 PM
Post #13


StratPlayer
****

Group: Members
Posts: 3,278
Joined: 27-December 02
From: SLC, Utah
Member No.: 27
Region Association: Rocky Mountains
Ya didn't waste any time. Looks good, hope it works for you... (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Reiche
post May 6 2005, 12:08 AM
Post #14


Member
**

Group: Members
Posts: 169
Joined: 13-October 04
From: Vista, CA
Member No.: 2,934
QUOTE (Pugbug @ May 5 2005, 10:47 AM)
Stock air guides won't fit this shroud, so I'll try these, but keep a close eye on the temps.

Looks great. With your fab skills, I think it would be easy to make some tins that replicated the factory ones in function. Right now, your cooling air is cooling the top of your engine well, but it is missing the hottest parts of the heads and cylinders: the bottoms. If you can channel the air around those bottom-side curves a little (like the factory did) I think you will run much cooler. At least your temps would be more even, which is as important. I wouldn't use the stock type 4 bottom tin though. A type 1-style bottom tin would do (basically a flat plate under the "cleavage" between the two cylinder barrels.)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
messix
post May 6 2005, 12:15 AM
Post #15


AKA "CLUTCH KILLER"!
*****

Group: Members
Posts: 6,995
Joined: 14-April 05
From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada
Member No.: 3,931
Region Association: Pacific Northwest
ot
nice cj hood.


whats the rest of it look like [what it mounts up to]


i have a '75 cj 5 built for the trail
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jgiroux67
post May 6 2005, 12:56 AM
Post #16


Guitar Shredder
***

Group: Members
Posts: 593
Joined: 4-June 04
From: Turlock, CA
Member No.: 2,157
I'm interested about that exhaust. What year engine do you have?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post May 6 2005, 01:02 AM
Post #17


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Am I the only one who doesn't understand the motivation for this? You "blowing dust"? WTF?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Pugbug
post May 6 2005, 06:23 AM
Post #18


Member
**

Group: Members
Posts: 449
Joined: 14-February 05
From: Victoria, BC
Member No.: 3,604
McMark;
The shroud on this engine bows a lot of air straight down, so whenever I encounter gravel or sandy roads...(Like a construction area) often I have to stop and wait. When I do there is a major sand storm rising from under the car.

That is me waiting on the other side of those gates.

Josh; The engine was originaly a 1.8 litre. It's been increased to 1910cc. I'm not sure, but I'm thinking the exhaust may be bus parts??


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
URY914
post May 6 2005, 07:50 AM
Post #19


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

Group: Members
Posts: 120,563
Joined: 3-February 03
From: Jacksonville, FL
Member No.: 222
Region Association: None
You should email RicerChris pictures of those headers. He is the expert in 914 exhaust systems. I've never seen a seen one like that before.

BTW- we have two Pugs. Great dogs. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

Paul
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
davep
post May 6 2005, 08:21 AM
Post #20


914 Historian
*****

Group: Benefactors
Posts: 5,141
Joined: 13-October 03
From: Burford, ON, N0E 1A0
Member No.: 1,244
Region Association: Canada
It appears you are missing the lower air guides. This may cause uneven cylinder cooling and that may be a bad thing. What I'm thinking of is that the bottoms of the cylinders will run much hotter since the airflow bypasses them. This could cause the running cylinders to be slightly out of round.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

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

 

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

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

- Lo-Fi Version Time is now: 14th May 2024 - 04:03 PM
Invision Power Board v9.1.4 © 2024  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 ...