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PostPosted: Mon Oct 15, 2012 8:17 pm 
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Hey folks. This seems to be the more tech savvy forum.

I am trying to upgrade the injectors on a 96' geo tracker engine in my samurai. Im currently running a T25 and I need some upgrades to get over the 145kpa/6.5psi range. Hoping to find a sutable mate from another vehicle like a subaru... just not sure which ones? I am running megasquirt and looking for something in the 330cc range to give me plenty of room to grow. Thanks a lot.

Here is my Youtube: http://www.youtube.com/zuki1018fire


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PostPosted: Mon Oct 15, 2012 11:35 pm 
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Location: Vancouver, WA
I assume you are comfortable with changing connectors?

3000gt vr4 are 360cc low impedance (you will need a resistor box)
Automatic dsm turbo are 390cc low impedance
I'm pretty sure a few Hondas are right around 300cc
Honda k20 injectors are 310cc

Ford blue tops (460, dohc 4.6 na) are 24lb (figure 240cc)
03 cobra are 39lb
Supercharged lightning are 42lb

All high impedance.

all off the top of my head so may not be perfect.

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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PostPosted: Tue Oct 16, 2012 7:07 am 
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I have never done it before no. I suppose I can read up. In other words, some of the ones you listed I may need to swap the stock connectors on?

If I recall, the stocks are low Impedance.


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PostPosted: Tue Oct 16, 2012 9:31 am 
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If you are running megasquirt PCBv3.0 or later you won't have any problems with low impedance injectors.

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PostPosted: Tue Oct 16, 2012 3:56 pm 
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G-sus wrote:
If you are running megasquirt PCBv3.0 or later you won't have any problems with low impedance injectors.


MS1 v3.0 yes sir! thanks.


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PostPosted: Thu Oct 18, 2012 5:37 pm 
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VR4 wrote:
I assume you are comfortable with changing connectors?


Could you elaborate please?


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PostPosted: Thu Oct 18, 2012 6:23 pm 
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3 main types of injector connectors....

EV1 is the most common....
Image

ev6 is next.


you have another style thats pretty rare. get some pigtails to match whatever injector you choose. at leas tthis is the G16 esteem injector. probably the same as the sidekick (i could check mine but that would require me to remember to when i get home)

Image

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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PostPosted: Thu Oct 18, 2012 7:23 pm 
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VR4 wrote:
3 main types of injector connectors....

EV1 is the most common....
Image

ev6 is next.


you have another style thats pretty rare. get some pigtails to match whatever injector you choose. at leas tthis is the G16 esteem injector. probably the same as the sidekick (i could check mine but that would require me to remember to when i get home)

Image



I gotcha, you mean changing the pigtails... i was thinking you mean something different/complicated. I have a 87 samurai i swapped a 96 geo tracker engine into with MS1 and wideband. I ran all the wiring (zero PNP) using the stock 16v connectors to each sensor. Swapping connectors is a cake walk lol. I have been concerned with height/size/fitment mainly. I've never pulled an injector from the fuel rail to grasp the concept. I want to be sure I ebay order the correct injector that will "physically" fit. I thought the stock tracker injectors were Denzo but am unsure if there are different versions. I am pretty positive mine are EV1 connectors.

This is an image i found online for a Geo Tracker 16v. I can pop one of mine to confirm connectors though.
Image

Im at 8.5psi right now and treading thin ice with duty cycles. I have been short burst testing ...not daily driving at this boost level.

Thx for the input, its very helpful.


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PostPosted: Thu Oct 18, 2012 7:37 pm 
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As an "after-post" I realize that the image I posted confirms what u say... odd-ball connector. I found a post over on suzuki-forums that say a Mazda MX6/626 330cc will be a direct swap.

Nippon Denso 195500-1300 other part # (INP-480) and (Bostech MP4002)


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PostPosted: Thu Oct 18, 2012 8:06 pm 
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VR4, you say these would fit the G16/Tracker fuel rail?

http://www.ebay.com/itm/91-95-Mitsubishi-3000gt-Dodge-Stealth-Fuel-Injectors-set-of-6-/180982547729?pt=Motors_Car_Truck_Parts_Accessories&fits=Model%3A3000GT%7CSubmodel%3AVR-4&hash=item2a23668511&vxp=mtr

After some online calculators, I think 390cc would give me a bit of extra room to grow over a 330. I had to bore .20 and shave the head .015 due to the conditions of my donor engine. I went stainless on the exhaust valves. I ran all 2.25" mandrel bend turbo/intake piping to match the stock 2.25 exhaust. Rebuild Saab T25 Garrett turbo.

I wish I would have went larger on my piping! Boost bug def. costing me money... but it sure is a fun little truck-let! http://www.youtube.com/zuki1018fire


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PostPosted: Fri Oct 19, 2012 1:24 pm 
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i do not know what fits the rail properly. i can check my esteem manifold and mess around with it but free time will dictate when i can get around to that.


fwiw those injectors on ebay are NOT 360 cc/min as per the picture. the picture is of NA injectors that are around 220cc/min iirc.


im pretty sure i have a couple sets of vr4 injectors still. ill try to test fit them this weekend.

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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PostPosted: Sat Oct 20, 2012 3:29 pm 
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390cc and 460cc injectors from a mazda rotary and turbo rotary will fit your fuel rail and injector wiring loom connectors.

they are available in high and low impedances so select the electrical match for your ecu.

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PostPosted: Sun Oct 21, 2012 1:59 am 
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If those are anything like the secondary injectors off the fd the spray pattern is absolutely horrible.

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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PostPosted: Tue Oct 23, 2012 6:53 pm 
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t3 ragtop wrote:
390cc and 460cc injectors from a mazda rotary and turbo rotary will fit your fuel rail and injector wiring loom connectors.

they are available in high and low impedances so select the electrical match for your ecu.


Thanks for the suggestion

Is the Suzuki G16a/b not basically the same engine design the 1.0 in your blue project? ...i skimmed through about 5 pages (nice build btw) and it looks almost identical in appearance ...less a piston of course.

Off topic but I could sure use a MS timing map screenshot. Currently mine is pretty linear which i know is not near to what the stock ECM has locked inside itself.


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PostPosted: Tue Oct 23, 2012 7:20 pm 
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VR4 wrote:
i do not know what fits the rail properly. i can check my esteem manifold and mess around with it but free time will dictate when i can get around to that.


fwiw those injectors on ebay are NOT 360 cc/min as per the picture. the picture is of NA injectors that are around 220cc/min iirc.


im pretty sure i have a couple sets of vr4 injectors still. ill try to test fit them this weekend.



How do they normally install/remove on the fuel rail? ..never taken an injector off the rail before. Before the boost bug i guess I've never had a reason. I thought the vitara/esteem/tracker FI was the same but idk for sure.


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PostPosted: Wed Oct 24, 2012 2:56 pm 
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slipped into the rail sealed with a large o-ring. the rail being bolted down is what holds everything secure.

_________________
98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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