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-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   Hardin cyclones (https://www.offshoreonly.com/forums/general-q/363880-hardin-cyclones.html)

farmo83 11-18-2019 10:42 AM
Originally Posted by Wildman_grafix (Post 4715374)
Looking at them it doesn't look like the runner on E-Tops are all that much longer. If you want I can measure mine E-Top runners. I just happen to have one off.
E Tops have a 15 1/2 inch primary into a 4 1/2 inch elbow.

bigboat28 11-18-2019 10:54 AM
Originally Posted by KWright (Post 4715390)
They look good but do they help or hurt power?

green lightning 11-18-2019 11:14 AM
Originally Posted by bigboat28 (Post 4715398)
They look good but do they help or hurt power?
That would depend on what you are comparing them to

farmo83 11-18-2019 11:44 AM
I would think these would hold up well against e tops, and pretty much any manifold except the old Kieth Eichert's. Against a Sport Tube or some other long runner header I think they would start restricting power???

Redneckcustoms13 11-18-2019 11:54 AM
Originally Posted by KWright (Post 4715390)
Are those 02 sensor plate something you had machined or is that available from a vendor? How do they affect the fitment at the transom?

green lightning 11-18-2019 12:57 PM
Originally Posted by farmo83 (Post 4715413)
I would think these would hold up well against e tops, and pretty much any manifold except the old Kieth Eichert's. Against a Sport Tube or some other long runner header I think they would start restricting power???
I don't think they will restrict power , But in a naturally aspirated application they won't be able to scavenge exhaust and gain you some extra power like a long tube header will.

KWright 11-18-2019 06:36 PM
Originally Posted by Redneckcustoms13 (Post 4715418)
Are those 02 sensor plate something you had machined or is that available from a vendor? How do they affect the fitment at the transom?
we made them up at Island racing. Put a small wedge in when running them in the boat to compensate for added height.

KWright 11-18-2019 06:42 PM
https://cimg7.ibsrv.net/gimg/www.off...51026e6d01.jpg
Originally Posted by bigboat28 (Post 4715398)
They look good but do they help or hurt power?
don't have a honest answer to that as we didn't run any comparisons. I'm sure we left some on the table with them but we were happy with the results.


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