Customs fuel regulator/filter location

Working on fuel lines on this new project. engine builder recommends a fuel pressure regulator, no problem there .Question is will it be OK to use a fuel filter after the regulator but before the carb. I also have an inline filter just outside of the tank before the electric fuel pump.

 

I'm with you, I like to have that primary filter between the tank and the pump. I'd rather plug up a filter than ruin a pump. Not a thing wrong with a secondary filter where you are planning on putting it though. That's just added insurance.
I've got a fuel filter off a 76 Cadillac Seville (the over grown Nova looking one) that sits next to the FI pump just inboard and up from the left rear wheel. It bolts to the frame and is hardlined in and out. The cover unscrews and it takes the same filter as a lot of 70's Cads had in the can on the bottom of the fuel pump. Not as fancy or showy as the aftermarket units but easy to swap filters on when you have to.

 

I've always plumbed the filter before the regulator. keep the regulator on the inner fender away from engine vibration.

 

I always use a pressure regulator, even with mechanical fuel pumps. I've seen many factory mechanical pumps that put out 8-9 psi, so a regulator helps avoid possible flooding. I also use filters before and after the fuel pump and regulator to keep both of them, and my carbs healthy. I mount all of this on the frame rail nearest the fuel pump or engine. With electric pumps I mount them close to the tank, and low. They push better than they pull.

 

Its a good question. I'm not sure of the answer but i'd think that if the fuel is clean prior to the regulator you're good to go. Anything downstream of the regulator that has the fuel going through it might be a source of contamination. A true pressure measurement at the carb inlet would tell the tale.

 

Filter is the last line of defence for the carb so the nearer the better. If you have a filter on the suction side of the pump make it a large one. If not you can get fuel flashing into vapour and causing pump cavitation.

 

I use an inline filter on the frame rail before the regulator to protect it...

Another filter on the firewall to protect the carbs.

Pump is in tank on all my cars.

 

What fuel filter is that you have on the firewall? Pretty cool.

 

That came from OTB gear. They have some cool stuff on their site.