I have an 89 crx si with LS turbo tuned at 5psi (195whp/175tq). Fuel set up consist of dsm blue tops injectors, aftermarket fuel rail, an unknown brand FPR, and stock fuel pump. I want to up the boost and looking to make about 280whp or so. I hear people are pushing a hair over 300whp on the stock fuel pump. I'd rather be safe then sorry. My questions is, Should I drop the fuel tank and replace with a walbro 255 or is there an INLINE pump that will work for me and cost around the same price?

On a second note, I'm unsure at this time if the current fuel pump is stock or aftermarket. I bough the car already with turbo and the guy didn't know to much about the setup. Any easy way to check this? I do have a fuel pressure gauge tapped in.

help me out H/T

 

Your best bet is to run a Walbro. I'm not sure how it fits into your car, but on my GSR, i just had to pull the rear seats to get to the pump.

 

Well you have to drop the tank to replace the fuel pump. On that note. I would think it would be easyer to drop the tank and replace the pump with a known walbro, than it would to cut the fuel line, flare the line, buy the fittings, and then put a inline pump in. and the best way to see if its a walbro is to drop the tank and pull the pump out.

 

I was kind of afraid you would say that. It would suck to buy a walbro then drop the tank just to find out its a walbro. How long does the process usually take? I've done the regular "from top" fuel pump change in my eg and an ek before.

 

Is the pump noisy? A Walbro pump is much noisier than stock. You would know if you had a Walbro installed lol.