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May 24, 2012, 08:51:07 am
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Author Topic: Which fan shroud?  (Read 2372 times)
fifty-five
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« on: November 25, 2010, 01:46:16 am »

After the exploding fan incident I need a new shroud. My question is is there one better than the others? Is there a yeast range better than others? here's what I got 2276 running a under the deck turbo. Had a stock doghouse on it and it worked fine, just wondering if there is something better without spending useless money.
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1955 Ragtop

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Glenn
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« Reply #1 on: November 25, 2010, 09:22:22 am »

Stock late model Dog House works just fine. if you have no heat than a Type 181 shroud gives a cleaner look.
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fifty-five
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« Reply #2 on: November 25, 2010, 09:45:46 am »

Cool thanks Glenn, and that was supposed to be year range not yeast.......lol
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1955 Ragtop

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fifty-five
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« Reply #3 on: November 26, 2010, 05:27:55 pm »

Any idea who has a good og 181 fan shroud?
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1955 Ragtop

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garyj
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« Reply #4 on: November 26, 2010, 05:40:59 pm »

You're going to have to shop around for a 181 "Thing" fan shroud. Some folks think they have gold and want big $$$. Sometimes you'll find one at a swap for cheap. It's a "one year only" OE piece that has not been re-manufactured. You can try searching the "for sale" sections of the VW sites as well as Ebay.http://www.thesamba.com/vw/forum/viewtopic.php?t=3...p;start=40
here's a decent deal at the above link.
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Glenn
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« Reply #5 on: November 26, 2010, 05:43:03 pm »

I got one for $30 and got a second for free on a seized engine. so keep looking, they are out there.

If you want one NOW, then be prepared to pay $200-$300.

If you find one, make sure it's a Dog House shroud. Late 40hp Stale Air shrouds look the same from the front but do not have the dog house back.


Here's a real 73 Type 181 Notice the fitting on the upper right for the charcoal canister. The 40hp does not have it.
« Last Edit: November 26, 2010, 05:52:12 pm by Glenn » Logged

David Ward
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« Reply #6 on: November 26, 2010, 05:59:20 pm »

If you are up for a little fabrication work you could always make your own from a couple of donor shrouds.  I took a 40hp small shroud (similar shape to the 36hp shroud) and carefully separate the air veins from the front and cut out the back.  Then I did the same to a late model dog house shroud.  I then married the two to make an all-German 40hp dog-house shroud.  Total cost?  About $30 and 2-3 hours of my time.  All you need is access to a welder, a cutting wheel and spot weld bit.

I have some pics that I took from the whole thing that I can send you if you're interested. 
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Cornpanzers
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« Reply #7 on: November 26, 2010, 06:04:57 pm »

You can but a modified FI shroud that had the air horns removed.
http://www.thesamba.com/vw/classifieds/detail.php?id=1058681
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fifty-five
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« Reply #8 on: November 26, 2010, 07:40:33 pm »

I saw that one, but it looks like it still needs some work. I don't like the squares added on where he removed the air horns. for me they would have to be flush.
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« Reply #9 on: November 27, 2010, 12:16:02 am »

What about the puma shrouds? Do they cool as well?
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Kevin Alexander
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« Reply #10 on: November 29, 2010, 08:41:37 pm »

What about Scat 36hp style doghouse shrouds?
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fifty-five
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« Reply #11 on: November 30, 2010, 01:06:23 am »

I'm looking to stay with a stock vw shroud. I'm a little weary of the aftermarket shrouds. I need to be sure I have all the cooling I can going too the right places.

Does anybody know if the brazilian puma shrouds cool well? I think the low profile would help me under the deck with some space, but not if the cooling is reduced over a regular doghouse.
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1955 Ragtop

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neil68
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« Reply #12 on: November 30, 2010, 01:53:50 am »

I've been using a stock '75 FI doghouse cooling shroud in my 2332 cc, 10.5:1 CR, 180 WHP, 91 octane at 3,300 ft elevation and it seems to cool pretty much the same as a stocker (using the same temp gauges).  I have to drive for about 30 minutes to get the engine up to operating temps.  Only when I hot lap at the drag strip, can I get it to heat up quicker Wink
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Donny B.
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« Reply #13 on: November 30, 2010, 10:51:12 am »

I have a good friend using the Puma shroud and he drives all over the country without issues so I would say they work pretty well.
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Donny B.
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« Reply #14 on: November 30, 2010, 12:35:55 pm »

What kind of setup is he running? I've got alot of heat under my decklid from the headers and turbo.
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« Reply #15 on: November 30, 2010, 02:54:33 pm »

He is running a 1776 with dual carbs and a merged header system in a KG.
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« Reply #16 on: November 30, 2010, 04:54:30 pm »

If you didn't have any cooling issues with an OE shroud before, the Puma shroud should not be any different. Earlier you mentioned the "squares" on the modified shroud in the provided link. The "non fresh-air" Puma shroud has the same "squares" where the air horns would be. Sounds to me like your biggest issue is a "non-welded" fan. I'd start there. Also,,unless the CP performance Puma shrouds have been "updated", I believe the factory units used the thinner pre-doghouse fan. Someone correct me if I'm wrong.
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fifty-five
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« Reply #17 on: November 30, 2010, 07:06:15 pm »

Yeah my reason for needing a new shroud comes from a fan explosion. I don't need heat so one without air horns would look best. I didn't have great issues before so a stock doghouse will work fine. I'm looking at the brazilian vw puma shrouds. I want a vw shroud not a aftermarket from any manufacturer unless it has been proven to out perform a vw shroud. I like the idea of the puma because it is lower profile and would give me more room around the back of the carb. I don't really need it but it bight make life a little bit easier. I just want to know if they cool as well as a later doghouse shroud. And I getting that they do.
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« Reply #18 on: November 30, 2010, 07:12:38 pm »

Fifty-five  you need to solve the first problem, the fan blew-up.  Slow down it's not a big block.
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Kevin Alexander
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« Reply #19 on: November 30, 2010, 08:06:45 pm »

http://cbperformance.com/catalog.asp?ProductID=1523

fifty five is this the shroud you are refering to? I like the idea of it. How well do these cool guys?
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« Reply #20 on: November 30, 2010, 08:34:51 pm »

You are trying to re-invent the wheel... Start doing some research about what YOU want. This is as much forum input that you are going to get. There is nothing EASY about high-performance.....Good Luck!
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fifty-five
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« Reply #21 on: November 30, 2010, 08:40:11 pm »

1836, I'm not sure I follow your comment. The fan blew up and the vanes went thru the shroud. I didn't have a welded fan and spun it to 7 grand  at farmington.

Yeah thats the style kevin.
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fifty-five
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« Reply #22 on: November 30, 2010, 10:40:15 pm »

Gary, how am I trying to reinvent the wheel? I just want to know if the puma shrouds cool as well as a late style doghouse shroud. I don't mean to sound like a ass, but I hate to spend the money for a puma them it doesn't cool as well.
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1955 Ragtop

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« Reply #23 on: November 30, 2010, 11:25:33 pm »

 Buy a Scat 36hp doghouse shroud. They have all the directional veins inside just like a stock one, and use the big fan.
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« Reply #24 on: December 01, 2010, 11:07:21 am »

Gary, how am I trying to reinvent the wheel? I just want to know if the puma shrouds cool as well as a late style doghouse shroud. I don't mean to sound like a ass, but I hate to spend the money for a puma them it doesn't cool as well.
I don't want to sound like an ass either, but your question has been answered numerous times and a number of options thrown out there.
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« Reply #25 on: December 02, 2010, 11:05:23 am »

AJ Sims did huge R&D on this and concluding his DTM was the best and the 181 next with the late model doghouse in 3rd. He cautioned against going after market. I have an 181 off the car and are using a late model now. Hate to part with it though as I am waffling about switching to no heat. But would like to drive it in the winter some. I have the large tube heat exchangers  (1.5")and Merge header. I think it is a Berg but I do not know. That or it was Custom? Has one tube that bends between the header and heat exchanger. Never seen this. I really could not tell a big difference however I had no gauge altough it ran warm with both until I got an oil cooler.
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« Reply #26 on: December 02, 2010, 12:14:31 pm »

AJ Sims did huge R&D on this and concluding his DTM was the best and the 181 next with the late model doghouse in 3rd. He cautioned against going after market. I have an 181 off the car and are using a late model now. Hate to part with it though as I am waffling about switching to no heat. But would like to drive it in the winter some. I have the large tube heat exchangers  (1.5")and Merge header. I think it is a Berg but I do not know. That or it was Custom? Has one tube that bends between the header and heat exchanger. Never seen this. I really could not tell a big difference however I had no gauge altough it ran warm with both until I got an oil cooler.
That would be JAKE RABY!, not AJ Sims.
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« Reply #27 on: December 02, 2010, 02:18:17 pm »

That's what I was looking for. Thanks
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1955 Ragtop

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« Reply #28 on: December 02, 2010, 08:42:19 pm »

That would be JAKE RABY!, not AJ Sims.

x2 Grin Worlds apart.
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« Reply #29 on: December 11, 2010, 11:04:28 pm »

OOPS! Raby it was. Thanks for the correction guys.
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« Reply #30 on: December 12, 2010, 12:25:41 pm »

As I tell folks all the time.. My DTM has a lot of benefits, but you only should look to it after an OEM arrangement has proven not to be successful in your application. 55, I still have that perfect 181 shroud if interested, if not I am going to post it on the samba this week along with my perfect 63 body that hasn't spent a night outside since 1967. I want to start on the GT2 Bug soon and need to eliminate some of my collection, the loft is completely full!
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« Reply #31 on: December 12, 2010, 12:38:30 pm »

with my perfect 63 body
You're not old enough to be born in 63.
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« Reply #32 on: December 12, 2010, 12:47:35 pm »

Jake PM me with price on 181 shroud. only if 55 is not interested.
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« Reply #33 on: December 12, 2010, 07:23:38 pm »

I want it, but can't do it till probably end of jan. Of patrick wants it now go for it.
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« Reply #34 on: December 12, 2010, 08:33:49 pm »

PM sent
Glenn, The body on this 63 is much better than my own!
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