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Hardin cyclones

Old 11-14-2019, 02:28 PM
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Default Hardin cyclones

Did some reading and not much input either way especially recently. Is anyone using these or has used these? I currently have Gils and want easier plug access. And maybe something shiny. Just looking for feedback.

Mike
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Old 11-14-2019, 04:57 PM
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Salt water or fresh water? Engine application? PM me all the questions you have as I am very familiar with the Cyclone shorty headers.
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Old 11-14-2019, 05:29 PM
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I too am wondering about these. Do they help or hurt hp and torque?
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Old 11-14-2019, 08:22 PM
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I have a set I got used. i havent ran them yet but they look very nicely built. One had a pinhole leak and I repaired it. Pressure tested both with 150psi and it held over night so I called them good. I am really looking forward to running them though.
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Old 11-14-2019, 09:47 PM
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Originally Posted by LS1 View Post
Salt water or fresh water? Engine application? PM me all the questions you have as I am very familiar with the Cyclone shorty headers.
saltwater. Just curious on longevity.
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Old 11-14-2019, 09:48 PM
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Originally Posted by bigboat28 View Post
I too am wondering about these. Do they help or hurt hp and torque?

im already running gils. Can’t see these being worse than gils. Quality and longevity are my concerns.
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Old 11-14-2019, 09:49 PM
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Originally Posted by Redneckcustoms13 View Post
I have a set I got used. i havent ran them yet but they look very nicely built. One had a pinhole leak and I repaired it. Pressure tested both with 150psi and it held over night so I called them good. I am really looking forward to running them though.
150psi? Holy cow. Lol. That’s impressive. How old are they?
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Old 11-15-2019, 06:21 AM
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Originally Posted by Redneckcustoms13 View Post
I have a set I got used. i havent ran them yet but they look very nicely built. One had a pinhole leak and I repaired it. Pressure tested both with 150psi and it held over night so I called them good. I am really looking forward to running them though.
Where was the pin hole, at a weld? If it wasn't at a weld I would think the rest has to be pretty thin.

I think a lot of the issues must be we not flushing with a LOT of volume of water and using salt away/ dawn, granted my E-Tops and not full length runners but they are still in good shape with 7 years of salt running at 20 years total.
Not pushing my luck will replace them after the new years run.
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Old 11-15-2019, 07:16 PM
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Ran these on my 565's. Good alternative to the gils with no tailpipe modifications. I was very pleased with the quality.
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Old 11-15-2019, 08:47 PM
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Originally Posted by KWright View Post
Ran these on my 565's. Good alternative to the gils with no tailpipe modifications. I was very pleased with the quality.
thank you.
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