 Adding a catalyst, or two, to a 914?!, It has already been done, I'd like to learn more… |
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| horizontally-opposed |
 Sep 30 2020, 08:07 PM
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Advanced Member  Group: Members Posts: 3,456 Joined: 12-May 04 From: San Francisco Member No.: 2,058 Region Association: None 
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This thread prompted by an idea discarded long ago and revived by a recent post from @Chris914n6 elsewhere noting his decision to add a cat to his 914. Curious to hear thoughts on upsides and downsides with this idea. Feasible? Effective? Ineffective? Stupid? Sure to cook the engine's—or the 901's—oil? Or?
Talk about threads I thought I'd never start, but my 914 is pretty smelly in 2020 in a way it wasn't when I started driving it in the 1990s…because all cars have become so much cleaner and the older cars on the road back then are long gone now. Turns out, there are such products out there—and I am surprised by the price disparity. https://www.holley.com/products/exhaust/cat...l/parts/2000124 https://shop.redline360.com/products/g-spor...gh-output-85030 |
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| Root_Werks |
Oct 1 2020, 09:56 AM
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Village Idiot Group: Members Posts: 8,930 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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The 914-6 conversion I bought uses 993 heater boxes and two high flow Cats. I like it, know it leaves some power on the table, but the 914 doesn't stink.
The CIS is set a bit on the lean side, noticeable only when cold. Looks clean though, the guy did a good job. Attached image(s) 
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Posts in this topic
horizontally-opposed Adding a catalyst, or two, to a 914?! Sep 30 2020, 08:07 PM
Chris914n6 First a disclaimer... I put it on my Nissan swap. ... Sep 30 2020, 10:00 PM horizontally-opposed ^ Very cool.
I'd be hesitant to add cats to ... Sep 30 2020, 11:07 PM VaccaRabite Modern high flow cats are really good. Trying to ... Oct 1 2020, 06:24 AM Mark Henry The cat won't last long with an aircooled, you... Oct 1 2020, 07:15 AM
horizontally-opposed
The cat won't last long with an aircooled, yo... Oct 1 2020, 07:21 AM Mark Henry
Suspect the much more sensible move for a carbu... Oct 1 2020, 08:21 AM ClayPerrine I am all for clean air.. I do like to keep breathi... Oct 1 2020, 12:04 PM |
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