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Banned
Join Date: Nov 2007
Location: Rockwall, Texas
Posts: 8,559
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Evap Blower Motor Question for Kuehl
Kuehl, I want to buy and install an evaporator blower motor that puts out more volume than the OEM one in my 1987 930 - it looks like you don't have a Hurricane setup for my year? Do you have any other suggestions regarding this? I don't have any problem with making modifications to my evaporator box top and the like . . .
I see Retroair has a blower kit for my year ($335) - I wonder if it is any good? Last edited by Ronnie's.930; 07-16-2013 at 10:43 AM.. |
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07-16-2013, 10:37 AM
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airbil
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Cheap and light... so it will surely blow, one way or the other.
Give it a try... report back.
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75 Carrera, 06 CttS, 95 Audi urS6 Avant, 97 M3/4/5, 07 Audi S6 |
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07-16-2013, 10:57 AM
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Banned
Join Date: Nov 2007
Location: Rockwall, Texas
Posts: 8,559
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It looks like I answered my own question regarding the Hurricane - I would need to find the early style box top and metal fan wheel . . .
Airbil - looks interesting. |
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07-16-2013, 11:01 AM
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Registered
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Easier adoptation..1st line 001-A39-49D
http://www.spalautomotive.com/eng/products/centrifugal_12S.aspx Last edited by wwest; 07-16-2013 at 12:31 PM.. |
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07-16-2013, 12:26 PM
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Registered
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Quote:
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07-16-2013, 12:33 PM
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Registered
Join Date: Jan 2012
Location: Erehwon
Posts: 3,369
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I have the Retroaire evaporator blower(came as a complete unit when I installed AC in my '75). It is not especially quiet, but it moves a lot of air and certainly fits within the noisy confines of a 911.
Overall I am positive on the whole Retroaire system.....but there other good ones including Keuhl, but I liked the Retroaire price point better... Dennis |
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07-16-2013, 12:50 PM
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Go-Kart Mozart
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I believe the retroair kit includes a new pre-86 style lid and metal fan.
As for the SPAL blowers listed they only show one that moves more CFM that the post-85 style blower and it's pulling almost 30 amps to do it. Then you have to cobble up a way to mate it to the existing evap box. Griffith has the numbers on his website. Porsche 911 evaporator blower motor tests, Porsche 930 evaporator blower motor tests, Kuehl Wirbelsturm Hurricane Evaporator Blower Motor, 901-624-901-00,911-624-899-00 Converting Griffith's numbers the post-85 blower is pushing just over 500 CFM. Giffith's motor in the pre-86 box is 650 CFM for comparison. The other option is to adapt a blower/motor from another vehicle. There is an old post here where someone used a Chevy truck fan/motor and claimed an increase. I ended up with a spare evap box and grafted a fan from a 99 ish Civic to the lid. That got me to around 560 CFM. It's not enough of an increase that I'd cut open my only evap box to do it again. -J
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86 Carrera Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats. H. L. Mencken |
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07-16-2013, 12:54 PM
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Forever
Whatever
Fasst
