hi all i have a 2002 eclipse GT V6 I was just wondering if only installing RIPP injectors increase horsepower? & also how long does it usually take to install injectors?

How would bigger injectors on a stock car increase horsepower? Research the function and purpose of fuel injectors and then get back to us.

More fuel plus more air will increase power.

not if he goes all motor! i mean yeah he has to have a more free floating intake, but forced induction is not always the only solution for HP gains.

Air + Fuel + Spark = GO.

More of all of them accordingly will make more power.

It doesn't matter if its through forced induction or not.

but then how does putting on higher compression head and rings + higher output fuel = more horsepower? its not exactly like your adding in more air on that setup, and it still translates to more power doesn't it? i know you have to run super high octane fuel for this, but it still translates over doesn't it? (serious question)

I think it works like this:

There's more entrained energy in high octane fuel (more fuel) + higher compression (more air) = more GO. The rings are to reduce blow-by. From a bigger explosion.

More spark is necessary once your compression gets too high and produces a quicker burn.

Please correct me if I'm wrong.

Bigger injectors = More fuel consumption. If you don't have the supporting mods, you will just run even more rich than before and probably even go slower. The first thing you should do on the NA V6 Eclipse is reflash the ECU and lean out the fuel maps.

But anyways...

Same mixture in a smaller are creates more force, therefore more power.


3000gt is right more air + fuel + spark = power
Doesn't matter how you get it, if its there and tuned right you will ALWAYS get hp increase

I have always found the BEST mod for N/A is a Tune. I'm just now getting into DSM and sure its the same and I support this statement.

please try not to get offended as i am not trying to say anyone here is wrong.

based on the assumptions i have regarding your information. you guys are telling me that the top fuel drag 1000 +hp cars that run 4 to 1 a/f ratio which is way off of the 16.4 to 1 optimum a/f ratio in a daily driver is completely wrong in their claims? drag car engine setups an anomaly you think? i doubt that.

i'm not doubting you guys, i'm just trying to find some kind of supported information with what you are telling me. does anyone have a website with scientific facts supporting your information that i can go to to read up on this? i did a quick google check and what i have said is correct. higher compression + high octane fuel(not extra air) will translate to more power. all the other claims of fuel plus air being the only way to get more power for an engine.

although i do recognize that the ram air intakes most drag cars have help tremendously with kind of a forced induction, but at stop there is still a massive amount of power. without the ramming of the air.

It's an Eclipse, not a Top Fuel drag car. We're basing our statements on how the **** car is built, don't over analyze the thread.

The n00b wants more power in his car, the answer isn't just installing bigger injectors - that's the foundation and the entire point.

i asked an entirely different question if you hadn't noticed man, chillax bro!

all i was saying is that if he decides to go all motor later on in life for his car that bigger injectors do help.

when i was asking my question it was a partially off topic question. still related to his questions, but slightly off topic.

i was wondering in relations to everyone that keeps saying the same old "blah blah blah blah blah, you have to have more air and more fuel to get more power."

this is only partially true. higher compression with less air and higher octane fuel can offer more power as well. more air plus more fuel is not the only way to reach added hp. i am not trying to offend you or anyone else, but the fact of the matter is when some one says the onlyway to get more power is to add both more air and more fuel is a false claim.

there are hardly any cars withaftermarket turbo's, superchargers, or internal engine mods. running perfect a/f mixtures let alone an all motor car . e.g. top fuel drag cars. granted the air intakes are highly modded to allow the most available air into the engine, but its no where near what a forced induction system is pushing. so how come you can still get the same HP levels out of a all motor that you can get out of a forced induction system? compression + high octane fuel = power, not added air. now seriously where am i going wrong in this argument?

ok lets back up a second. top fuel drag cars run "top fuel" or nitromethane. They probably do run a 4:1 air fuel ratio because nitromethane engines need almost 3 times as much fuel on the same amount of air BUT that fuel is more volitile.

just for informational purposes so people don't get bad information 14.7:1 air fuel ratio is stoich (google stoichiometric). 9 to 10:1 air fuel ratio is better for forced induction engines because of higher intake temps(google turbo air fuel ratio)

Drag cars also don't have "ram air intakes" They utilize "scoops or horns" to draw air that is free from turbulence and as dense as possible. "ram air" uses factory designed scoops in a hood that are not the most efficient.

yes, higher compression and higher octane will make better power. That isn't the question. He is not rebuilding his engine, he is asking if he adds bigger injectors to his stock car will it improve power and the answer is no, agreed with SC. Think of the problems with this:

larger injectors = dumping extra fuel into the cylinder (poor performance without tuning. more fuel doesn't always mean more power unless you add more air)

larger injectors = stock FPR trying it's best to compensate but usually falling short and dropping pressure. this creates a lean condition under high RPM and high throttle. possibly causing major damage to the engine.

I also agree with EMC saying that more fuel + more air = more power. However, on a stock vehicle adding more fuel without more air will make the vehicle run PIG rich and create poor performance.

bottom line - without installing a force induction system, or porting the head with an extreme high flow intake system (including manifold) there is no need for bigger injectors. HelI stock injectors are more than sufficient even in some forced induction applications. Stick with your stockers :thumbsup:

if you can add power without adding fuel or air please tell us how. stickers? sure, you can tune your stock fuel map and reduce rotating mass with underdrive "this" and "that" but in the end you only gain 10-15hp.

a "perfect" air fuel ratio is a myth. Do you realize that a top fuel dragster utilizes a forced induction system called a supercharger or "blower" ?

show me an all motor car that can get the same hp out of a forced induction car (same engine between the two, we aren't comparing a 2.0L 4 cyl to a 502) and I will sell you my house for 3 dollars.

If he asks about a motor build, fine - but he asked this...



Don't try to spin this around like you're right - when you're wrong. He obviously is trying to just do something quick and simple hoping for a boost in power. Every post you make is a friggin novel. Cut all the crap and stick to the point and answer what they ask, or offer an alternative suggestion.

look man i was answering his question further from a PM i received from him. no need to get your panties in a bunch.

the facts are this. all motor uses both a small amount of air addition with large amount of fuel tossed into a chamber that compresses the mixture highly to equal the appropriate amounts of power that boosted motors do.

boost can however push more pressure into the chamber which is why we have 1000+ horse power 4 cylinder engines and none all motor builds be it V6, V8, V10, V12. at least in a naturally street vehicle

the amounts of pressure pushed into a 4 cylinder to put 400HP to the wheels, then pushed into a V6 is usually way more than is safe for a forward thrust (you'll probably just sit and spin your wheels for days on end.) unless of course you turn your car into a actual drag car with drag suspension and tires and whatnot for traction.

there was an all motor verse turbo comparison done in one of the tuner magazines about 8 or 9 months ago that stated neither were better when speaking in terms of price to achieve HP on same motor, and 1/4 mile times. the real part is whether you want the spool of a turbo or the raw power at the pedal. they said its all in relation to preference.

true the potential for turbo is far better than an all motor build, but it is not the only way to add horsepower is all i was trying to say. it didn't have to get heated like it did, if you guys can try to relax for a second, and actually read my first post about how "if he went all motor" you would understand this discussion better, "crimanitly trigger put that pea shooter down".

there was no need to make it a federal case.