Ae86 fuel pump options

[will_drift_4_food]

I know that this is an old thread, but hopefully I can get some answers here.

I have converted my USDM SR5 to a EDM/JDM MAP EFI setup, and am using the stock tank with an external MSD fuel pump. I don't doubt it's 255lph or close to it. I have run 3/8" (9.5mm) aluminum tubing for a return line back to the tank. I am using the same size tubing for a supply line. The car idles very high, around 1200 RPM, if I recall correctly (it's been a minute since I started it), but revs very nicely. I know that the injectors are a wee bit large, as the motor had low impedance injectors in it when I got it. Apparently my ECU didn't like that and wouldn't start. Took me a minute to figure that one out. So, I purchased some other high imp. 4AG injectors just to isolate the problem. I will be installing the AFC Neo out of my Supra very soon and should be able to adjust the AFR, but am wondering about the fuel pump. If I get an Aeromotive (or comparable) AFPR, will my current pump be okay? I am going to take the fuel rail this week to have it tapped for a -6AN fitting on the return side so I can use a better FPR.

Any info/advice greatly appreciated.

[nmwisima]

Cant help ya, so I bump this :wink:

[will_drift_4_food]

I should add that my present injectors are 235cc, and the stock bluetop are 195cc. This would cause the car to idle high, correct?

[Mikzu IV]

Im using a supra mk3 7mgte unit, simple plug and play

[NoHachi]

Fuel pump will be fine..definately if you use a upgraded fpr. High idle is not the injectors. Might be idle adjustment, idle valve, leak/bubble in the cooling system or water temp sensor failure.
Fuelling will be 20% rich all over.

[Okami]

So what kind of pump would I need?
I have 4agze (1st gen) around 170 bhp. (because of crank shaft pulley).

Would I need a walbro 255?
Can I swap that easy or do I need a special installation kit?
I have no idea - this is all very new to me.

Thanks.

[Okami]

I guess i will go with either a 190 lph walbro or 176 lph from fensport.
At least thats not overkill.

Ah I even found a universal QSP 160 lph - that would be a very good example as well.

I might go for that and its only 75 euros.

[Roger]

@okami
you can use a walbro 255 or a bosh 040 for your 4agze.
I use a walbro also but you have to lower your fueltank from the car to reach your fuelpump
no special tools needed.(krik,sleutels,..)

[Okami]

Roger Wrote:@okami
you can use a walbro 255 or a bosh 040 for your 4agze.
I use a walbro also but you have to lower your fueltank from the car to reach your fuelpump
no special tools needed.(krik,sleutels,..)

but like the other dude said - isnt that overkill?
I spoke to other people as well but shouldnt this be good enough?

http://www.12tune.nl/qsp-brandstof-pomp-...it007.html

[Okami]

Ok... Just ordered the QSP universal 160 LPH fuel pump.
Should be more than enough for now and the future as I wont be going too overboard with power.

I might be around 170ish HP right now... So should be good.