I've asked around a lot lately about the fuel injectors for our cars. Everyone tells me 660 are to big.


Has anyone actually tried these injectors in our cars??

98 GS Eclipse

thier not hard to run, and a couple people run them on here. but you need a standalone fuel to be able to adject the pulsewidth and control the injectors to idle.

True.

The largest injectors you can run with the factory ECU are 550 cc/min injectors, and that's with a minimum of an adjustable fuel pressure regulator and an S-AFC.

2016 WRX STi Limited (current)
2001 A4 1.8tqms (donated)
1991 GVR4 #1933 (sold)
old.dsmregistry.com/detail.php?carid=218 (dismantled)

yeah but with running 550s, you *prob* wont need anymore then that. Those are big injectors, I have 650s and I am really leaning them out alot on 18 psi

Boca Raton, Florida
95 Eclipse GS- sold
99 Eclipse GSX- 386awhp
98 Eclipse GS- sold
92 Prelude

i had some 660cc peak and hold injectors ,wired to a 4g63 resistor pack, on my car. with the idle fuel pressure at 20psi and my AFC leaned out by about 35% it idled just fine.

dsm/mitsubishi service manuals https://www.mediafire.com/folder/5k14qlaulb9s1/dsm_mitsubishi

service manuals(my whole collection) https://www.mediafire.com/folder/ac51jwwa3g1n1/automotive_manuals

Do our cars batch fire or do we fire 2 at a time? By batch fire, I mean all 4 at once.

98 GS Eclipse

Neither. They are sequential, timed off the cam magnet.

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

So they all fire individual??

98 GS Eclipse

__________________________________________
~Chris
03 SRT-4

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

__________________________________________
~Chris
03 SRT-4

Since nobody else has asked, what mods do you have that you are thinking about running an injector that large??

I'm fabing a custom tubular header on a fully built engine. I have every expectation of hitting at minium 400 at the wheels. And if i can't get it I will have a bottle that will get me there. I want to build it once, and not have to redo anything. I want to know that when I get done I'll have the fastest 420a eclipse, or damn close to it.

I know that I'll prolly see like 2 pages worth of replies to this saying that i'm stupid or something. Unless it's an honest comment please keep it to yourself.

Money is not a problem, I work in the medical air industries in hospitals and smack, so I make bank. I got mad cash. NO I DO NOT WANT TO BUY A GST OR GSX.

98 GS Eclipse

__________________________________________
~Chris
03 SRT-4

Evo 8 - 12.3@113 circa 2009 (~330whp)
Now with BB Xona Rotor HTZ FP Red and ~450whp
2018 MSM Civic SI Ktuner TSP stage 1 w/ Honda hacked headunit.

Cool man. I think it is so cool hahn claims to have fast cars but will only sell you up to a stage 2 kit. They also say they have no fuel upgrades for our cars.

Funk dat.

If your gonna advirtise it, sell it.

Like all posts i have made before this, the topic chances from one man asking for fuel system help, to talking about the setup and other no relavent things. I just wanted to know if anyone has successfully ran 660's in their car. If so, what kind of control was nessicary for it. Thank you.

98 GS Eclipse

__________________________________________
~Chris
03 SRT-4

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

I believe our cars are wasted spark type, aren't they?

Meaning we fire two plugs each time. It's not what you said here. Am I incorrect?

99GS MT | Star Stage 2 | GC coilovers | HurriganeGS tie bars | Tokico Illuminas | 17x7 Enkei RS5 | Baer track brakes |+

I guess it depends on how much air your compressing there. For easier tuning you want to get away with the smallest injector for your setup. You will need to be a little more specific about how you plan to get to 400-500 hp.

400whp or bust.

Trying to run that large of injector using a rising rate FPR and a SAFC, really is not the best way to go about it..thats just me though..If you are really serious about making power, then you need the correct equipment to get you there, safely, and also letting you fine tune the setup. You should look into other means for fuel delivery/tuning, like a 8 injector setup(EIC), DFI, or standalone. You wanna play, you gotta pay..the more power i try to run, the more a standalone setup sounds better to me..having complet control of the fuel map is one thing, but having control of the ignition timing is another..lots of people forget about timing, which can make for a powerful motor, or one that blows up or falls flat on its face..this is just what i think, take it for what its worth..

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

use nothing but a stand alone... I've used 625's and am currently helping fab up an "old school" distributor, edis box, and Gen 7 DFI set-up with 720cc inj.

you will need something to offer total control.


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know me as santiago
boosted 420a and ej2o..(my 2liter v8 eaters)

is the gen 7 a full stand alone unit, or just for fuel. I mean, will it do my ignition to. I was planning on using a crane ignition to control timing.

98 GS Eclipse

GEN 7 is complete standalone and has timing control capability. However, I've come across a glitch which prompted the idea of adapting a distibutor and edis box. But I'll elaborate more when the time is right on that. If the money isn't an issue, invest in the engine management when using 660's.


--------------------------------------
know me as santiago
boosted 420a and ej2o..(my 2liter v8 eaters)

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/