4g93 manifold, fuel pump, and injectors into a 4g15

Negative. Wrongly spaced intake ports due to a different series engine
 
Manifold No - bolt pattern is different, if your after more flow do a DOHC conversion and then stick on a throttle body from a 4G93 (50mm) will match upto the standard Intake manifold nicely (did this conversion myself, works a treat)

Fuel Pump - if the pump is from a CE series then there is no point in changing it as the pumps in the CE mirage & lancer are exactly the same.

Injectors - yes the injectors will fit and the factory ECU will run them. but unless u re-tune the ECU or go after market they will put more fuel in than the standard mitsi ecu can take and the car will loose power before it will gain it

Can i ask a Q? what sort of power you looking to get out of ur 4G15? little bit of a boot or a full on kick in the pants?

More info u can give us the more we can help :)

I currently have a mirage with a 4G15 im doing up had a turbo set up now doing an N/A so i should be able to help out in some way :)
 
I'm looking for a little boot just to compensate for the weight of car audio (around 120kg), but if I don't get the score I'm aiming to get (145db) I'm just gonna go all out and look at other options
 
Okie dokie well yeah then ur best option is if u wantvto keep it simple then do the DOHC conversion, that engine produces 76.8kw compared to the SOHC which only produces 58.3kw. And there more than a few mods for the DOHC if u need more power later on. U can also do a 4G93 conversion but that involves changing the wiring loom and gear box too and I'm pretty sure the CV shafts too, so if u don't mind spending the money that's another option. But if u don't want to do an engine swap and stick with the SOHC then get a full 2inch performance exhaust with straight flow box, 4-1 extractors (have some for sale if ur interested ) also get a cold air intake, 4G93 throttle body that all combined will give it a bit of a boot. One other thing the standard fuel pressure regulator has a flat spot on take of, can be removed by installing a aftermarket standard FPR (not rising rate) that will need to be tuned and installed at a work shop if u don't know what ur doing with it. All that should more than compensate for the added weight

I do a have a few more ideas for mods but if that's enough happy modding or swapping if this isn't enough though let me know and I'll tell u more :)
 
has anyone tried using a 4g93 ecu injectors and afm to run a 4g15? would probably need an 4g93 loom to run it all since the 4g15 uses a map and iat instead of AFM
 
@mitsi_girl_amy to do a g93 swap you just need ecu wiring loom motor and clutch.
You can use the same cvs and gearbox
I'm running a g94 with g15 gearbox.
Goes like a boss
 
Hi all, i am having a 4g15 1.5 sohc with K&N intake Air filter, racing header and free flow exhaust, Iridium spark plugs and high tension plug wires....i want to install a 4G93 1.8 sohc fuel injector to it for improved performance, suggestion please. My friend told me that a stock 4G15 1.5 sohc with 4G93 injector gives a better performance...so i want to have the expert view on this. thanks
 
Hi all, i am having a 4g15 1.5 sohc with K&N intake Air filter, racing header and free flow exhaust, Iridium spark plugs and high tension plug wires....i want to install a 4G93 1.8 sohc fuel injector to it for improved performance, suggestion please. My friend told me that a stock 4G15 1.5 sohc with 4G93 injector gives a better performance...so i want to have the expert view on this. thanks
FI of 4g15 1.5 sohc is 180cc / pressure 38.5 psi and FI of 4G93 1.8 sohc is 210 cc / pressure 43.5 psi
 
The stock 4g15 injectors are enough for the 4g15. Adding more fuel from the 4g93 injectors but not more air will make the car perform worse. This isnt a video game where you just add on parts and make lots more hp
 
while yes a free-flowing intake and exhaust will allow the engine to flow better doesn't mean it will require more fuel. I know that with my 1.8l it has about a 20% overhead of injector flow left before they are maxed out (stock standard) so I would imagine that the 1.5l is going to be a similar thing and with how the ECU works it will automatically add fuel (via trims) to suit for that sort of add-ons. If you were to add a different cam then maybe you would need bigger injectors (and a re-tune)
 
while yes a free-flowing intake and exhaust will allow the engine to flow better doesn't mean it will require more fuel. I know that with my 1.8l it has about a 20% overhead of injector flow left before they are maxed out (stock standard) so I would imagine that the 1.5l is going to be a similar thing and with how the ECU works it will automatically add fuel (via trims) to suit for that sort of add-ons. If you were to add a different cam then maybe you would need bigger injectors (and a re-tune)
Hi, currently my car is running very lean and only increasing the pressure from 38.5 psi to 43.5 psi (180 cc to 210 cc which is increase of 30 cc). since i have K&N conical Air Intake filter, racing header with FFE and iridium plugs.
 
The stock 4g15 injectors are enough for the 4g15. Adding more fuel from the 4g93 injectors but not more air will make the car perform worse. This isnt a video game where you just add on parts and make lots more hp
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My car is running lean and i have K&N conical Air Intake filter, racing header with FFE and iridium plugs.
 
The stock 4g15 injectors are enough for the 4g15. Adding more fuel from the 4g93 injectors but not more air will make the car perform worse. This isnt a video game where you just add on parts and make lots more hp
My car is running lean and i have K&N conical Air Intake filter, racing header with FFE and iridium plugs.
[/QUOTE]

How lean is it running? What is the air fuel ratio that it's running at at idle, cruise, and full throttle? The original tune from Mitsubishi (world-wide the tune was the exact same) caused the engine to run very rich under all situations, and this has been verified by multiple dynometer checks. Your engine is still sucking almost the same amount of air with the standard intake or with a K&N intake or with no intake - maybe a 5cc injector variation.

In addition, the engine runs an Oxygen sensor, which automatically add or subtract fuel to meet the fuel map that Mitsubishi did from the factory, which allows for -12% and +12% fueling any given point if you let the car adjust itself for long enough. The 4g93 injectors are 16% larger than the 4g15 injectors, and they cant be used without retuning the car.
 
My car is running lean and i have K&N conical Air Intake filter, racing header with FFE and iridium plugs.

How lean is it running? What is the air fuel ratio that it's running at at idle, cruise, and full throttle? The original tune from Mitsubishi (world-wide the tune was the exact same) caused the engine to run very rich under all situations, and this has been verified by multiple dynometer checks. Your engine is still sucking almost the same amount of air with the standard intake or with a K&N intake or with no intake - maybe a 5cc injector variation.

In addition, the engine runs an Oxygen sensor, which automatically add or subtract fuel to meet the fuel map that Mitsubishi did from the factory, which allows for -12% and +12% fueling any given point if you let the car adjust itself for long enough. The 4g93 injectors are 16% larger than the 4g15 injectors, and they cant be used without retuning the car.
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Hi Bro,
What i have read is Mitsubishi world wide road cars are tuned to run lean for better fuel efficiency. i have checked my spark plugs to know its running lean and right now i dnt have a air fuel mixture reading. but i dnt understand the point that my engine is sucking the same amount of air, as i can feel much improved performance from stock. Also the fuel pump is same for 4G15 and 4G93. To the last point, my friend has used the 4G93 injector on a stock 4G15 car and felt vast response by the car its a word of mouth knowledge to me. The point to raise the question here is that some of you might have experienced it.
 
How lean is it running? What is the air fuel ratio that it's running at at idle, cruise, and full throttle? The original tune from Mitsubishi (world-wide the tune was the exact same) caused the engine to run very rich under all situations, and this has been verified by multiple dynometer checks. Your engine is still sucking almost the same amount of air with the standard intake or with a K&N intake or with no intake - maybe a 5cc injector variation.

In addition, the engine runs an Oxygen sensor, which automatically add or subtract fuel to meet the fuel map that Mitsubishi did from the factory, which allows for -12% and +12% fueling any given point if you let the car adjust itself for long enough. The 4g93 injectors are 16% larger than the 4g15 injectors, and they cant be used without retuning the car.
Hi Bro,
What i have read is Mitsubishi world wide road cars are tuned to run lean for better fuel efficiency. i have checked my spark plugs to know its running lean and right now i dnt have a air fuel mixture reading. but i dnt understand the point that my engine is sucking the same amount of air, as i can feel much improved performance from stock. Also the fuel pump is same for 4G15 and 4G93. To the last point, my friend has used the 4G93 injector on a stock 4G15 car and felt vast response by the car its a word of mouth knowledge to me. The point to raise the question here is that some of you might have experienced it.
[/QUOTE]
They are tuned to run slightly leaner than stoich only at cruise. I will bet you haven't read the spark plugs correctly. That is a "trick" that used to be done 40 years ago on an engine that only ran for 2 minutes at the drag strip, as any other driving conditions skew the result, and if you have read the spark plug under these conditions then you shouldn't be asking if the small change in injector will help.
The reason you think it's more powerful is because now you are sucking in enough air that the richness is being balanced, so it's a more complete combustion, and removes what is called the "doughy" feeling of acceleration.
 
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