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View Full Version : 2nd gen. 3S-GE and bigger Fuel Injectors



gerby77
12-17-2008, 03:13 PM
Hi Guys,

i was just thinking about a thing.
What would happen when i would build in some bigger Fuel Injectors in my 3S-GE (2nd gen) and what are the biggest i can build in w/o changing a lot.
By the way, i'm getting an Apexi S-AFC soon, maybe something with that too?

ciento44
12-17-2008, 03:16 PM
I guess the question is...

Why do you need bigger injectors?

gerby77
12-17-2008, 03:23 PM
I guess the question is...

Why do you need bigger injectors?

i don't need them, but i was just wondering if it could bring more power or so? Not much ofcourse, just curious

RedRkt01
12-17-2008, 03:24 PM
Unless you have a demand for fuel there is no need to perform fuel system upgrades. To answer your question: Nothing would happen....at least not in a positive manner.

RedRkt01
12-17-2008, 03:25 PM
Can't make poiwer by just dumping fuel in there. You have to have the air to mix it with also.

gerby77
12-17-2008, 03:27 PM
Can't make poiwer by just dumping fuel in there. You have to have the air to mix it with also.

yeah, that's for sure. so bigger Intake and direct connection to the outside ;)
Was just wondering if someone had done this before... ;-)

RedRkt01
12-17-2008, 03:32 PM
the onyl reason someone upgrades to bigger injectors is because they run a lot of air through the motor (turbo). That means their fuel system can't keep up.....so they upgrade it. Unless you plan on putting a turbo on this car you shouldn't upgrade the fuel system. I'm sure someone has done it, but i'm also sure that it didn't do them any good and it only wasted their money.

ciento44
12-17-2008, 03:39 PM
yeah, that's for sure. so bigger Intake and direct connection to the outside ;)
Was just wondering if someone had done this before... ;-)

You would need positive pressure for any REAL change to occur. An intake won't do this.

Stock injectors will be just fine for any bolt ons you could put on there.

METDeath
12-17-2008, 03:42 PM
Pretty much unless you do some head work, drastically increase your CR, and do the intake/exhaust upgrades, you won't need to do injector upgrades.

RedRkt01
12-17-2008, 03:44 PM
Even with bolt-ons there won't be any need for this. I doubt you'd really need it with cams to boot.

gerby77
12-18-2008, 09:30 AM
Ok, was just curious ;'-)

By the way, i still have some stock injectors at home, but haven't used them until now (have them about a year) Would they still work?

RedRkt01
12-18-2008, 01:26 PM
Yup, they'll work. If you want them to perform the best they can you should have them sent out for cleaning.

bpk1337
12-18-2008, 03:58 PM
running so rich will actually cause you to lose power as well as hurt your fuel efficiency.

RedRkt01
12-18-2008, 04:18 PM
unspoken

ciento44
12-18-2008, 04:48 PM
Bigger injectors and direct port nitrous?!?!?!!!!

YES!

RedRkt01
12-18-2008, 04:48 PM
splooge

85gtsblackman
12-18-2008, 08:29 PM
higher cr with big cams sometimes require more fuel