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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

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Old 06-12-2017, 12:09 PM   #1
Pete_89T2
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Default Stock FC Fuel Filter specs?

Random question, as I can't find the answer in the FSM or anywhere else -

What's the smallest particle size a stock FC fuel filter can screen/block, in microns?

Reason I'm asking is that I recently read an article on Injector Dynamics webpage (see linky) that indicates that if your filter can't block particles smaller than 35 microns, you'll damage the injectors, so the gist of their recommendation is to filter down to 12 microns or less. FWIW, I've found a few aftermarket filters that are spec'ed to filter down to 6 microns with replaceable filter elements.

http://help.injectordynamics.com/sup...tem-filtration

Since I have ID 1000 injectors now, I'd hate to risk trashing them by using a stock filter with unknown filtration capability.






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Old 06-12-2017, 01:08 PM   #2
infernosg
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I couldn't find the answer either so I got an Aeromotive unit:

Black: https://www.aeromotiveinc.com/produc...k-fuel-filter/
Red: https://www.aeromotiveinc.com/produc...ss-orb-10-red/

They're smaller than the stock fuel filter so you'll need to come up with a way to hold it. I ended up buying one of Aeromotive's brackets (https://www.aeromotiveinc.com/produc...ilter-bracket/) and made an adapter plate out of .060 aluminum to mount it at the stock location.
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Old 06-12-2017, 01:34 PM   #3
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Quote:
Originally Posted by infernosg View Post
I couldn't find the answer either so I got an Aeromotive unit:

Black: https://www.aeromotiveinc.com/produc...k-fuel-filter/
Red: https://www.aeromotiveinc.com/produc...ss-orb-10-red/

They're smaller than the stock fuel filter so you'll need to come up with a way to hold it. I ended up buying one of Aeromotive's brackets (https://www.aeromotiveinc.com/produc...ilter-bracket/) and made an adapter plate out of .060 aluminum to mount it at the stock location.
^Thanks, I'm headed in the same general direction. Found this Fuellab filter that goes down to 6 microns that I'll probably buy:

https://www.summitracing.com/parts/fue-81831-1

Also available in a multitude of colors, its 6 micron filter element for gasoline/E-10 is replaceable & available separately for about $30. Since it comes with a clamp, and is a bit smaller than the OEM filter, all I'll have to do to mount it is cut & drill an AL plate with the appropriate holes to stick it in the stock location.
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