Just got my MR yesterday, it will be broken in my the Weekend, i want to install my E-01 EBC and run 21psi till redline, should i get a fuel pump or regulator? i think it was too much fuel in my last Evo when i was running 21psi with a Walbro.

let me know


Ryan

 

bump

 

fuel pump cheap insurance get it

 

The stock fuel pump is more than enough for what your doing. No need to waste the money!

 

I agree, for simply holding 20-21 psi till redline, youre fine with the stock pump.

 

I would recommend upgrading. In a few cases the stock pump has failed after a short amount (few months) of time at 20-21 psi. It's cheap insurance.

-Paul

 

SAFC or flash.. to eliminate stock fuel cut...

 

cheap insurance =$90
plus it'll pave the way for future modifications

well worth it IMO

 

remember.....when ever you change your fuel pump, always get an adjustable fuel pressure regulator.

 

Get the pump... no regulator for the Evos... a reflash is best... end of story.

 

Yeah but even the upgraded units have failed in some cases. I have had my Evo for 2 years and no fuel pump problems (stock). So I am just going to stick with my stocker. Especially since I am planning to hold 19psi, which is of course stock, until redline. So it's sufficient.

 

It may get by, but that is NOT stock boost. 16 psi at redline is stock. You are running 3 psi over stock when the fuel pump is required to provide the most fuel. Running 21 pounds at 4000 RPM is easier on the fuel pump than 19 pounds at 7000. I'm not saying that the stock pump won't keep up, but it is somewhat stressed at that level. And unless you have a wideband you won't know the car is running lean due to a failing pump. I figure it's better to be safe.

-Paul

 

i had a problem with my stock fuel pump crapping out after a month running 21 psi with tbe no cat.

get it. it takes 30 min to install and it's cheap insurance for later on when you start to upgrade.

 

I am suprised to hear you say that. It appears that the Walbro on the stock regulator is pushing 52 psi of pressure with no hose attached. The pump is too much for the stock regulator and is overrunning it.

 

do you need a reflash or a road tune when you get a pump? should you get injectors, a fuel rail, or a SAFC II also? i heard our stock FPR is fine up until 450 hp. i am looking to upgrade my fuel next. would it be safe to get only the pump or do I need other fuel upgrades. should I be buying some other upgrade before a pump and injectors? i am new to this thx.