Need a quick answer about fuel and 3vz-fe

[ag6286]

Lets try to break it down here...



I did a few searches already but only got partial answers. My 3vz-fe has had a lot of work done, my check engine light is still on from knock sensors shorting out or not being connected so i have some power loss ther.

**However its come to my attention the 3vz-fe has 200cc injectors?? which means ther outputting about 80% @peak stock power usage,

since mine will have much greater air flow now im sure the injectors and pump cant quite keep up since i feel like i have only 20hp or so more power than before i rebuilt with engine light on.

**My question now is ive read the 3sge has 315cc injectors that i can get @a fair price from an auto store, these will fit and have same resistance and connectors as 3vz-fe correct??????

**I also have many many many extra parts from a 7mgte, my guess is those injectors will fit but too big for the ECU to adapt to w/o a piggy-back?????

I figure since i have to dig out my knock sensors i will change injectors at the same time....

**what is best choice i guess is my essential question?

**Also...will a fuel pump from a 7mgte supra fit with my 3vzfe or will ther be too much pressure for the existing lines to handle? cant say ive ever installed one b4 from either engines/cars


**Edit**another question but not relating to fuel, i kinda blew out my radiator fan motor, woops...but i am having much trouble finding a replacement from a regular autoparts store, they all seem to be under the impression its supposed to be electrical, this is not so, its run by power steering,,,,,i know very well since its a bi*ch to turn the wheel now. Has anyone run into this problem b4? Must i go to the dealer to get the correct part??

[Toysrme]

They are 200cc injectors.
200cc / 5 = 40hp * 6 = 240hp
80% duration = 192hp.
They're doing 77% of max on the stock engine.

Incidentally the stock fuel pump is a killer. I was up in the 230-240'ish hp range (I guess) when the pump lost it.

It's not a problem. Fuel pressure rises at, near 50psig once you get the power on the road and no vacuum going to the regulator. - Good for >/=210hp @ 80% duration.




McElligott - The stock ECU will run, with black smoke on 550cc injectors and a walbro 255.
You couldn't daily drive 315cc's. It would run, but it would be pig rich. Even on a 190lph pump. You can ask McElligott that too! Fuel consumption would eat your ass alive.



MCE used a 255 for years with no fuel line problems. I've had mine in about a month and a half - two months with no problems.



All new injectors are expencive (relatively). Ebay can be your friend if you don't get bad injectors.








If you're never going to make major power improvements 200cc injectors are fine.

I turboed with the stock 200cc inejctors, stock fpr, used walbro 255, and simply added a 550cc injector - run off my smt-6. (and the water injection, but I like it, I don't *need* it -- cheap ass insurance! LoL!)

[Toysrme]

OMG dude spread the questions out! You're driving me nuts trying to read and answer LoL! Break them up!

You blew the fan motor, the hose, the belt, or the powersteering pump? And how do you know it's blown?
Get a replacement at a junkyard 4 real.

[ag6286]

as for the injectors, my power will be a good margin above 210hp, but under 300, for now. I have a buddy who gets parts 50% off from pepboys for some reason as far as money is concerened.
* If i cant use 315 wut will i use, thers no way in hell my stock will keep up with the mods w/o 100% duration a lot of the time.
*shouldnt the ecu beable to compensate for the 315cc?

as for radiator...the bolt connecting the incoming power steering fluid hose was on way to tight, when i tried loosening it it snapped the motor instead of giving way...woops. Ill check junkyards but ther very very difficult to come across round here for sum reason

[ag6286]

like my fan motor? I think that bolt was put on way to tight at the factory or whoever messed with it last



update: as of 2:37 today i finally got the bolt to give, my question now is, does anyone know for sure if the fan motor is aluminum or not (it feels it but im not sure), if it is im SOL and cant weld it.