Offshoreonly.com - Hardin cyclones

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Crude Intentions

11-14-2019 02:28 PM

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

LS1	11-14-2019 04:57 PM

Salt water or fresh water? Engine application? PM me all the questions you have as I am very familiar with the Cyclone shorty headers.

bigboat28

11-14-2019 05:29 PM

I too am wondering about these. Do they help or hurt hp and torque?

Redneckcustoms13

11-14-2019 08:22 PM

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.

Crude Intentions

11-14-2019 09:47 PM

Quote:

Originally Posted by LS1 (Post 4715002)

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.

Crude Intentions

11-14-2019 09:48 PM

Quote:

Originally Posted by bigboat28 (Post 4715011)

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.

Crude Intentions

11-14-2019 09:49 PM

Quote:

Originally Posted by Redneckcustoms13 (Post 4715041)

150psi? Holy cow. Lol. That’s impressive. How old are they?

Wildman_grafix

11-15-2019 06:21 AM

Quote:

Originally Posted by Redneckcustoms13 (Post 4715041)

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.

KWright

11-15-2019 07:16 PM

Ran these on my 565's. Good alternative to the gils with no tailpipe modifications. I was very pleased with the quality.

Crude Intentions

11-15-2019 08:47 PM

Quote:

Originally Posted by KWright (Post 4715147)

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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