Fuel Injectors - Why is this so hard???

by **Mitsu2K** » Fri May 07, 2004 3:10 pm

OK, I've been looking all over creation and can't find the injectors that I need for my setup. I want something over 240cc (will accept 240 if I have to - Lancer right?). Just trying to keep the price down as much as possible. Trying not to spend more than 150.00. Looking on E-bay and find stuff but since I am unsure if the ones I am looking at are the right ones I am apprehensive to order.

I'll have the SAFC-II hooked up so bigger is OK too cause I'll be able to tune it down. Again, not RC Eng for 85 a piece :roll: but something a little more reasonable.

I've been reading and searching the board but one person will say these xxx fit" and the next thread will be someone sayin "no they don't" So now I'm just confused

crap, even a clear list of the cars I can get them from would be good and I can find them myself.

US Lancer 2000+
3000GT year??? (6G72 Mivec)
Stealth year??? (6G72 Mivec)
Eclipse 1 or 2G (I think 2G as the 1G were low-imp....right??)
RX-7 years?? (Buffy, did you ever get yours to fit?)

And what's the resistor everyone talks about for? Turning low-imp into high imp. or something else? Quez said "Resistors will save your life and your motor. " Why?? How?

Anyway, here are my "I searched already and am now confused links for your reference"

http://www.mirageforums.net/viewtopic.p ... =injectors

http://www.mirageforums.net/viewtopic.p ... =injectors

http://www.mirageforums.net/viewtopic.p ... =injectors

http://www.mirageforums.net/viewtopic.p ... =injectors

Also, how about adding an INJECTORS section to the FAQ, didn't see one.
Thanks everyone.

Shane

by **Mitsu2K** » Fri May 07, 2004 8:34 pm

boo hoo

by **KillahB** » Fri May 07, 2004 8:38 pm

I only clicked on two of those links because I am stealing internet time at work.

Here is the scoop on injectors. You already know the difference between low and high, I am assuming. Our cars have high impedance injectors, and 99% of all the performance injectors out there are for low impedance type cars. If you run low impedance injectors in a high impedance car, you will fry the ECU eventually (ask Prench what happened to him) because the car is looking to read one resistance and is getting something much lower. Most of the Honda guys get a resistor box and connect that inline with the injectors and that changes the resistance to high. I dont know much about this and I did not even bother with this dilemma. I consulted with the turbo guru, the Great one, and he recommended if I did not want to bother with this, just to get some RX-7 high impedance injectors and that is what I did.

Nopw the fitment of injectors that you are talking about is probably not more so of the injector fitting into the rail but fitting the correct profile for the car. 240cc from the Lancers fit and they are the right impedance but I dont knwo if that is enough fuel for you.

275cc out of the MIVECs work too but to get them is a pain. Dont know the impedance of the new RalliArts but they are probably high impedance too.

My RX-7s required a longer fuel rail bolt and pretty much that was it.

by **Mitsu2K** » Fri May 07, 2004 8:50 pm

Knew I could count on you

Call me when you want to come by. Headin' to the pool around noon for a few hours but I'll come back to meet you whenever.

Thanks!! (what year RX-7s or does it not matter)

by **Mitsu2K** » Fri May 07, 2004 8:54 pm

One more thing, what's with the Primary and Secondary? Is that how I want them or do I need all Primaries or all secondaries?

:splif:

by **miksatx** » Fri May 07, 2004 8:58 pm

I'm pretty sure Q has an extra set 460 on hand not sure bout the year but i'm very sure that they are 19500-2010 hi imp.

by **Mitsu2K** » Fri May 07, 2004 9:01 pm

miksatx wrote:I'm pretty sure Q has an extra set 460 on hand not sure bout the year but i'm very sure that they are 19500-2010 hi imp.

Q? AirQuez?

He better bring em over tomorrow then :twisted:

by **miksatx** » Fri May 07, 2004 9:01 pm

by **Mitsu2K** » Fri May 07, 2004 9:07 pm

:dance: Lets hope aye :rdanc:

by **ProPilot04** » Sat May 08, 2004 3:35 pm

What about the 310cc's I've been seeing people get?

~DAVE

by **KillahB** » Sat May 08, 2004 7:24 pm

ProPilot04 wrote:What about the 310cc's I've been seeing people get?

~DAVE

The only 3xx cc injectors I have seen people get are from overseas. Dont know of any 3xx cc injecotrs high impedance state side. They could exist, I just dont know about them.

Mitsu2K - sorry man, I worked today (what else is new) after working til midnight last night, back at 6 am. When i got home, I passed out till pretty much just now.

by **Mitsu2K** » Sat May 08, 2004 7:34 pm

No problem, just chilled at the pool with the little man. We can hook up anytime. (except tomorrow, mother's day and all :wink:

)

John from Secret Service was at my cousins house today watchin' the hockey game. He is gonna do my full install and dyno tuning first week in June when I go to Captiva for a week. That way I don't have to rent a car. :razz:

I can actually count down the days now...woo hoo.

Talk to you soon.

by **Mitsu2K** » Sun May 09, 2004 12:24 am

Think this got missed:

One more thing, what's with the Primary and Secondary? Is that how I want them or do I need all Primaries or all secondaries?

:splif:

by **miksatx** » Sun May 09, 2004 6:09 am

look that only applys to rx7 wankels, if your talking mazda injectors.
the injectors if you need to get are 460cc are marked 19500-2010 these are high impendence, the low impendence are 19500-1350.

by **miguel727** » Sun May 09, 2004 7:34 am

Heres a few injectors choices between 240cc and 315cc

1992-'95 Civic Saturated 240cc
1996-'00 Civic ex/si Saturated 240cc
1992-'00 Integra LS/GS Saturated 240cc
1993-up Miata 1.8-liter Saturated 240cc
1997-up Prelude VTEC H22 Saturated 280cc
2000-up Celica GT-S Saturated 310cc
1993-up Supra non-Turbo Saturated 315cc

Saturated means that they are high impedance, so they work in our cars... maybe is easier for you to find one of those sets

Good luck

by **Mitsu2K** » Sun May 09, 2004 7:51 am

Cool man, Thanks!!

by **93ES by MORA** » Sun May 09, 2004 9:01 am

get some used ford injectors. They are available for up to 42 lbs/min ( which is good for around 600hp)
You can also try a JY. Jeep cherokees with the inline 6 engine have high imp. 26 lbs/min injectors. You can score them pretty cheap ( I ussually get them for $5).

by **ProPilot04** » Mon May 10, 2004 8:29 am

Miguel... That is EXACTLY what I was looking for.

w0rd
~DAVE

My one other question is... is there gonna be a problem with fitment? Using the injectors out of any of those cars? or am I gonna be the one to find out.

by **miguel727** » Mon May 10, 2004 8:38 am

ProPilot04 wrote:Miguel... That is EXACTLY what I was looking for.

w0rd
~DAVE

My one other question is... is there gonna be a problem with fitment? Using the injectors out of any of those cars? or am I gonna be the one to find out.

I think you have to find out by yourself... the main problem is the connector, Im not sure if any of those have the same connector as the mirage... the other thing is how long the injector is, but you can fix that by using a longer bolt to hold the fuel rail... I once tried the celica 310cc injectors and they had a different connector and they were taller

by **buffyfan** » Mon May 10, 2004 9:54 am

[quote="Mitsu2K"]RX-7 years?? (Buffy, did you ever get yours to fit?)

I've got early rx-7 low impedance orange/red top 450cc's in my 95 1.8l. Clips bolted up....no size probs.....hell, I still haven't put the resistors in yet either. And get this. I have no idea how this happened....but I got 35mpg out of my last tank of gas where I usually only get 32-33. I've got my safc turned down 50% all around.

by **jdmmirage** » Mon May 10, 2004 10:17 am

ok if you are turboing a 1.5 go with either a set of 1.8 mirage injects or a set of 1.6 liter mivec injects... you can get the injects through rpw or vision.... or a board member with 1.8's

by **Mitsu2K** » Mon May 10, 2004 10:41 am

I suppose I could be wrong but I don't think the 1.8s are going to be enough for me. I don't want the injectors to be working at 100% capacity at full boost, or even close. I'd rather run large at 60-75% potential which is why I don't want to get anything less than the 275s.

Has anyone used the Siemens DEKA injectors? I'm wondering whether they will fit my clip or if I'll have to order one and splice it?

lbs x 10.5 = cc

36lb = 378 cc ??right?? That should be perfect, I think.

by **miragercr07** » Mon May 10, 2004 12:46 pm

i dunno but i have rc 310cc low impeadence in my 1.8 and i have had no probs really and the shop i go to told me that u can go from high to low impeadence just not low to high. thats what they told me so dont quote me on that but i havent had any probs

by **KillahB** » Mon May 10, 2004 6:25 pm

miragercr07 wrote:i dunno but i have rc 310cc low impeadence in my 1.8 and i have had no probs really and the shop i go to told me that u can go from high to low impeadence just not low to high. thats what they told me so dont quote me on that but i havent had any probs

You better start knocking on wood. I wil ltry to find the article when I get home but essentially it states that running low impedance on a hig impedance vehicle causes improper voltages or some crap in the circuit and fries the ECU. Will get the tech talk when I get home.

by **PhatMirage** » Tue May 11, 2004 7:57 pm

Has anyone used the injectors from a Dimante? I have been told they are around 300cc?

by **mirage1** » Tue May 11, 2004 8:59 pm

BTW, I have some Ford injectors that a friend gave me and they are too big around to fit in the fuel rail. The nozzle side seems to fit fine and length is the same. So fitment would be a concern.

I would recommend the Diamante's if they really are 3xx cc. Better chance that they will just bolt in and work.

by **ProPilot04** » Tue May 11, 2004 9:17 pm

Anyone know the cc for the EVO 8 injectors and if they are high imp (i'm guessing they are, and the cc is aroung 450)

Just trying to get facts straight.
~DAVE

by **IGX** » Tue May 11, 2004 9:27 pm

I think its 510cc, low impedance also.

by **270R** » Tue May 11, 2004 9:43 pm

The diamante uses a 3.0 and 3.5 liter motor. The 3.0l (6g72) is 210cc. Why? More cyls and don't need bigger injectors to do the job.

by **Mitsu2K** » Wed May 12, 2004 12:17 am

Yeahhhhh. I just won some 275cc 6G72 Mivec Injectors. In the immortal words of Journey "The search is over"

:splif:

Fuel Injectors - Why is this so hard???

Fuel Injectors - Why is this so hard???

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