01-17-2021, 05:04 PM | #1 |
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racdyn/racing dynamics catless downpipes
I've tried searching and using the googles to see if I could find any reviews all to no avail. Anyone use or know of someone with these downpipes? I am interested in knowing if the flex joint/bellows make any difference with vibration. I don't have or know anyone with DP's and not sure if there is a vibration issue.
https://www.racdyn-usa.com/PROD/130+10+63+330.html
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02-13-2021, 04:02 PM | #2 |
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Anyone familiar with the material that they wrap the DP's in?
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02-14-2021, 05:54 AM | #3 |
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Yes, it's very effective in keeping temps down. I have a similar setup from Germany: https://www.ebay.com/itm/233661149226
The install was slightly easier than a standard downpipe, and for extra thermal protection, I was able to retain the oem heatshields. |
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02-14-2021, 11:28 AM | #4 |
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Danke. They look really nice. Were you able to observer/record temps before and after? Is the shielding welded on to the pipe?
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02-15-2021, 02:05 AM | #5 |
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Yes the shielding is welded to the pipe. Unfortunately, I installed them right before putting the car into winter storage, so I did not have time to scientifically measure the temperature difference, or get before and after logs. However, I did physically notice a drastic reduction in under hood temperatures after a spirited drive, as well as the cooling fans turning off significantly sooner than before (after ~2 minutes as opposed to ~5 minutes prior to install) however, there could also have been many other variables that could have led to the reduction in fan running time (i.e. lower ambient temperature, length of drive, etc.).
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02-15-2021, 01:32 PM | #6 | |
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Quote:
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02-25-2021, 09:49 AM | #7 | |
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Corrosion is the main reason I have ruled out "fabric" wraps, but dissimilar metals can lead to similar problems. Ceramic coatings are the only alternative but the air gap thermal protection seems like it would perform better. Looking forward to anyone's feed back on how to best go about mitigating the heat soak on the back two cylinders.
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03-08-2021, 07:00 PM | #9 |
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Where in Fl are ya?
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03-10-2021, 06:46 AM | #11 |
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Windermere is a great location. I am over in Riverview, Fl near Tampa. Are you thinking about installing this yourself?
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03-10-2021, 04:37 PM | #12 | |
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I've been waiting to do this for a while; with AMS & VRSF being top choices -- even went to the extent of getting turbo blankets from PTP. I just need to get everything installed -- given that I still need to order DP's. With your introduction of the group (dynamics), I thought it'd be a great "two birds with one stone" situation to have a DP with welded heat mgmt vs. wrapped heat mgmt. Either way, let's determine if it's a good buy firstly. And if so, let's see if we can get a good group discount going. Thoughts? H |
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03-10-2021, 05:09 PM | #13 |
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I emailed their sales again today but haven't heard back yet. I have a few appointments and home project stuff tomorrow but will try to call them on Friday if nothing back by then. I have been trying to find that thermal material as well to have cut and welded to another vendors downpipe. I'd be just as happy to go with racdyn if it were not so damn hard to find feedback from other owners a discount off their price would motivate me. Without imperical data or feedback from our peer's I am hesitant to hit the buy it now button
My car is unmoded and has a recently rebuilt engine. I am not looking for a performance tune, but I definitely don't want to go around with the CEL on. I'll likely go the BM3 route to take care of that.
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