TLDR: is there any reason I can’t use a Chevy ls fuel filter on a bp4w? Ms ecu, t25 turbo, itb setup.

full story. I had a Miata for a minute. It had an itb turbo setup on it. Anyway wrecked the car because of a brake line failure oh well. I saved the motor parted out the chassis and I put it in an rx7 fc. In the process of planning I have to do a fuel system don’t like how the stock sits with the bp motor. Was going to run custom lines and what not for it. And got to thinking the fuel filter on an ls is returnless and I could mount it somewhere in the rear of the car and not have to worry with dealing with an aftermarket solution for the regulator and filter.

also I’m running 92 don’t have good access to anything else. Thanks ahead of time.

 

BP4W's don't care where the filter or regulator come from. Or any engine for that matter. A filter and regulator just need to meet the demands to make the engine run, whatever make or variety.

I have no idea where you are going with this but NB Miata's are also returnless. If your question is if the Chevy filter and regulator will just bolt-on then the answer is no.

 

Im not sure why he wants an ls filter, but as far as fuel pressure regulator, that makes sense, local facebook by me has a few off of Hondas for cheap.

 

Depends a little bit on the ECM you're going to be using. I used the LS filter (Wix 33737) on my LS swap because the LS swap needs a bigger fuel line. Couple of things to note: C5 FPR wants to be 3/8th's, which is more than enough for the BP. BP uses 5/16ths. Pressure will be higher - LS FPR is ~60 PSI, BP FPR is 43.5psi - so if you're using the stock ECM it'll be rich, but otherwise pretty easy to tune out. And hooking it up via AN lines gets pretty pricey without much benefit. If it were me, I'd rather run a rising rate FPR and just bend the fuel lines to a better position.

 

yeah I have the things to do the setup you speak of minus running custom lines. On an fc rx7 chassis the fuel lines run down the drivers side, left side. On a bp4w the fuel rail is on the passenger side and the exhaust is next to the fuel line. This my desire to move it to the other side. Keep it away from the exhaust make life nicer.

I’m on a megasquirt so tuning isn’t the issue. My thought was just to simplify the system because the vette fuel filter is a 2 for 1 deal.

but I think I got my answer. Essentially if I can tune it it shouldn’t be an issue which I can and that was my theory but reconfirmation is sometimes nice before I waist my money haha.