550 cc injectors needed to safely run a 16g? - TriStateTuners.com :: Home of Tristate Auto Enthusiast

themadhatter · 12-31-2005, 04:01 PM

I purchased a ported Evo III 16G and I'm curious if 550 CC or larger injectors are needed.

are EVO VIII injectors a good idea or should I go directly to a set from RC or comparable?

I'm already running a supra fuel pump so that end is already covered.

thanks,
Ron

D Money · 12-31-2005, 04:04 PM

you should be fine with that. Maybe a lil bigger.

themadhatter · 12-31-2005, 04:11 PM

that's what I was wondering, if I run bigger, I will have room to improve in the future. that said, I'd be happy with the vr4 anywhere over 350 awhp.

D Money · 12-31-2005, 04:13 PM

Quote:

Originally Posted by themadhatter

that's what I was wondering, if I run bigger, I will have room to improve in the future. that said, I'd be happy with the vr4 anywhere over 350 awhp.

Yea, the more room to play the better you will be, this way you dont max the injectors out. It's much better to get a safer tune, than one that is not.

Philly Boy · 12-31-2005, 04:45 PM

So are you using stock VIII injectors? or stock VR4 injectors?

koho2731 · 12-31-2005, 04:47 PM

I'd just go with 650cc to give your self plenty of head room They are 280 shipped from here http://www.fuelinjectorclinic.com/cart/mitsubishi.htm

themadhatter · 12-31-2005, 05:27 PM

stock vr4 injectors, the 16g isn't installed yet, that's why I'm asking for advice for what to do.

ScoobyNubieToo! · 12-31-2005, 05:29 PM

Quote:

Originally Posted by themadhatter

stock vr4 injectors, the 16g isn't installed yet, that's why I'm asking for advice for what to do.

Does any kind of self-modding technique exist for those injectors like for the WRX injectors? Might wanna look into that.....could save ya some bucks.

themadhatter · 12-31-2005, 05:41 PM

I'm not familiar with any but given that I'm a n00b to the 4g63, it doesn't surprise me.

what is this self modding trick that you're talking about?

I was thinking of the 560 CC EVO VIII injectors since they are cheap on ebay.

ScoobyNubieToo! · 12-31-2005, 05:49 PM

Quote:

Originally Posted by themadhatter

I'm not familiar with any but given that I'm a n00b to the 4g63, it doesn't surprise me.

what is this self modding trick that you're talking about?

I was thinking of the 560 CC EVO VIII injectors since they are cheap on ebay.

You can read about it here......
http://forums.nasioc.com/forums/show...light=link+44s

Safir · 12-31-2005, 06:40 PM

It is my understanding that the DSMS all use a pretty standard bosch-style injector - the "cap" on wrx injectors is somewhat unique from what i've seen.

that being said, racetronix (www.racetronix.com) sells inexpensive delphi-style injectors in matched sets and in various sizes, both high and low impedance. I've got a set of low impedance 55lb units in my subaru for the time being.

awdlaserbeam · 12-31-2005, 07:51 PM

I have RC 550cc injectors that i was going to use to do an EVO III 16g that i am selling. I also sent you a PM

the mike · 12-31-2005, 08:08 PM

Go bigger, you can always scale back the duty cycle later if they are flowing too much.

**TROLL** · 01-01-2006, 05:19 PM

keeping in mind that this is the mitsubishi tech section, please only respond if you have solid tech input on the mitsubishi in question. injector/turbo combos vary from car to car and because of that there could be some confusion here.
i'm not trying to be an ass, just trying to make sure that themadhatter comes away from this thread with good info, not just really confused.
i'm sure any of the DSM guys would know since they share the same engine as you... either wait until they see this thread or maybe contact a couple by PM to see what they have to say.
bryan

koho2731 · 01-01-2006, 05:29 PM

Quote:

Originally Posted by the mike

Go bigger, you can always scale back the duty cycle later if they are flowing too much.

That is if he has standalone if not you can adjust fuel pressure.

themadhatter: What kind of fuel managmet are you using?

themadhatter · 01-01-2006, 05:54 PM

Quote:

Originally Posted by koho2731

That is if he has standalone if not you can adjust fuel pressure.

themadhatter: What kind of fuel managmet are you using?

apexi SAFC-2

that should be able to dial back anything if needed.

noreaga0221 · 01-01-2006, 06:46 PM

550's are fine, Will be able to be controlled alot easier at idle and will be easier to tune. No need for 660's.

PS. I went 116mph on stock 450's with a dry nitrous kit. Its not about the size of the injectors but how you use them.

Fastrick25 · 01-01-2006, 06:55 PM

How much boost you plan on running?

themadhatter · 01-01-2006, 07:49 PM

she currently runs at 18 psi on the 14b, figure the same or comparable with the 16g. the fact that the 16g flows more is where I'll be making my power.

the car currently pulls 282 awhp in it's current configuration.

koho2731 · 01-01-2006, 08:46 PM

yes 550 will work, but if you plan on any real upgrade or just running more boost you will be above 80% duty cycle. I'd rather over build something the come up short.

12-31-2005, 04:01 PM	#1
themadhatter Tri-State Addict Join Date: Apr 2005 Location: North Jersey Member #402 iTrader: (0)	550 cc injectors needed to safely run a 16g? I purchased a ported Evo III 16G and I'm curious if 550 CC or larger injectors are needed. are EVO VIII injectors a good idea or should I go directly to a set from RC or comparable? I'm already running a supra fuel pump so that end is already covered. thanks, Ron __________________ 1998 BMW Rogue 3 TT S2.5 1991 Mitsubishi Galant VR-4 #1687/2000

12-31-2005, 04:11 PM	#3
themadhatter Tri-State Addict Join Date: Apr 2005 Location: North Jersey Member #402 iTrader: (0)	that's what I was wondering, if I run bigger, I will have room to improve in the future. that said, I'd be happy with the vr4 anywhere over 350 awhp. __________________ 1998 BMW Rogue 3 TT S2.5 1991 Mitsubishi Galant VR-4 #1687/2000

12-31-2005, 04:45 PM	#5
Philly Boy Tri-State Aficionado Join Date: May 2005 Location: Lansdale, PA Member #440 iTrader: (0)	So are you using stock VIII injectors? or stock VR4 injectors? __________________ 06 Corvette Z06 CAI and tune. 480whp 02 BMW E46 M3 Vert 19" AA SC'ed 420whp. Sold 02 WRX 300whp 285wtq from Turbotrix dyno. Sold 95 Civic EX T25 Tuned on Crome at 9~10psi Sold

12-31-2005, 05:27 PM	#7
themadhatter Tri-State Addict Join Date: Apr 2005 Location: North Jersey Member #402 iTrader: (0)	stock vr4 injectors, the 16g isn't installed yet, that's why I'm asking for advice for what to do. __________________ 1998 BMW Rogue 3 TT S2.5 1991 Mitsubishi Galant VR-4 #1687/2000

12-31-2005, 05:41 PM	#9
themadhatter Tri-State Addict Join Date: Apr 2005 Location: North Jersey Member #402 iTrader: (0)	I'm not familiar with any but given that I'm a n00b to the 4g63, it doesn't surprise me. what is this self modding trick that you're talking about? I was thinking of the 560 CC EVO VIII injectors since they are cheap on ebay. __________________ 1998 BMW Rogue 3 TT S2.5 1991 Mitsubishi Galant VR-4 #1687/2000

12-31-2005, 04:47 PM	#6
koho2731 Tri-State Addict Join Date: Oct 2005 Location: Dover, DE Member #997 My Ride: 95 Eagle Talon TSi AWD iTrader: (1)	I'd just go with 650cc to give your self plenty of head room They are 280 shipped from here http://www.fuelinjectorclinic.com/cart/mitsubishi.htm

12-31-2005, 06:40 PM	#11
Safir Tri-State Aficionado Join Date: Oct 2005 Member #940 iTrader: (0)	It is my understanding that the DSMS all use a pretty standard bosch-style injector - the "cap" on wrx injectors is somewhat unique from what i've seen. that being said, racetronix (www.racetronix.com) sells inexpensive delphi-style injectors in matched sets and in various sizes, both high and low impedance. I've got a set of low impedance 55lb units in my subaru for the time being.

12-31-2005, 07:51 PM	#12
awdlaserbeam Tri-State Aficionado Join Date: Dec 2005 Member #1126 iTrader: (0)	I have RC 550cc injectors that i was going to use to do an EVO III 16g that i am selling. I also sent you a PM

12-31-2005, 08:08 PM	#13
the mike TST Ruined My Life! Join Date: Dec 2004 Location: 08075 Member #19 My Ride: 1991 Toyota Previa!!! iTrader: (1)	Go bigger, you can always scale back the duty cycle later if they are flowing too much. __________________ My speed is only limited by my grip. Offramp Touge.

01-01-2006, 06:46 PM	#17
noreaga0221 Tri-State Aficionado Join Date: May 2005 Location: morrisville Member #441 iTrader: (0)	550's are fine, Will be able to be controlled alot easier at idle and will be easier to tune. No need for 660's. PS. I went 116mph on stock 450's with a dry nitrous kit. Its not about the size of the injectors but how you use them. __________________ 12.8@116 fwd

01-01-2006, 06:55 PM	#18
Fastrick25 Tri-State Aficionado Join Date: Oct 2005 Location: Ewing, Twp Member #963 My Ride: 2004 M6 GTO iTrader: (1)	How much boost you plan on running?

01-01-2006, 07:49 PM	#19
themadhatter Tri-State Addict Join Date: Apr 2005 Location: North Jersey Member #402 iTrader: (0)	she currently runs at 18 psi on the 14b, figure the same or comparable with the 16g. the fact that the 16g flows more is where I'll be making my power. the car currently pulls 282 awhp in it's current configuration. __________________ 1998 BMW Rogue 3 TT S2.5 1991 Mitsubishi Galant VR-4 #1687/2000

01-01-2006, 08:46 PM	#20
koho2731 Tri-State Addict Join Date: Oct 2005 Location: Dover, DE Member #997 My Ride: 95 Eagle Talon TSi AWD iTrader: (1)	yes 550 will work, but if you plan on any real upgrade or just running more boost you will be above 80% duty cycle. I'd rather over build something the come up short.

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