Rc 550 injectors in a Stock engine?

[watdaflo?]

theres no point in using those injectors on a stock motor. unless you plan on boosting i would not use the 550cc. even if you had all the basic boltons and some, 550's would still be way more than you need.

[Neon Nick]

theres no point in using those injectors on a stock motor. unless you plan on boosting i would not use the 550cc. even if you had all the basic boltons and some, 550's would still be way more than you need.

Actually, injectors for those cars have always been undersized from the factory. I say going with the 550's will give you a good boost in power. Let us know how it feels when you get those on.

[watdaflo?]

Actually, injectors for those cars have always been undersized from the factory. I say going with the 550's will give you a good boost in power. Let us know how it feels when you get those on.

o, i never knew that. so how much more power can i get with a stock car just by putting bigger injectors? can i buy like 750cc for more?

[Neon Nick]

o, i never knew that. so how much more power can i get with a stock car just by putting bigger injectors? can i buy like 750cc for more?

Yeah, in general the higher the cc the more power and the first two numbers are how much power you're adding (like shots of nitrous). So 550cc would add 55hp, 750cc would be 75hp, etc.

[watdaflo?]

Yeah, in general the higher the cc the more power and the first two numbers are how much power you're adding (like shots of nitrous). So 550cc would add 55hp, 750cc would be 75hp, etc.

i learn something new everyday. and there reletively cheap too. i love this forum!

[Neon Nick]

i learn something new everyday. and there reletively cheap too. i love this forum!

That's what it's all about, helping fellow tuners out!

[DC2NR]

Yeah, in general the higher the cc the more power and the first two numbers are how much power you're adding (like shots of nitrous). So 550cc would add 55hp, 750cc would be 75hp, etc.

Lol i bet you're serious too...

[Jaimecbr900]

Actually, injectors for those cars have always been undersized from the factory. I say going with the 550's will give you a good boost in power. Let us know how it feels when you get those on.

Yeah, in general the higher the cc the more power and the first two numbers are how much power you're adding (like shots of nitrous). So 550cc would add 55hp, 750cc would be 75hp, etc.

Please, please, please.....don't give out any more "advice" like that. It is 100% incorrect. That "formula" is something that I've never even heard of before, let alone correct.

Adding bigger injectors to a STOCK engined car brings up several problems:

#1. How is the stock ecu going to control those bigger injectors? Simply dropping in injectors that are almost twice as large as stock is not going to do anything but not let the car run at all. The ecu doesn't have the proper map nor capabilities to do that. So it will try to run 550's like the stock 240's, which doesn't work. Not now, not ever.

#2. "Power" is a combination of both fuel and air. Yes, more fuel equals more power, but ONLY WHEN more air is also introduced. So if you just dump a bunch more fuel, even if #1 above would let you (which it won't), then you're not going to make ANY more power until you dump in more air accordingly. So just putting in bigger injectors is NOT going to net you more power. Not 55 hp, not 5 hp.