4G18 stage one turbo set up, 0.5 bar, what size injectors to you run?

[jay_lancer]

Hi

I am trying to get together the parts I need to boost the 4g18 engine in my 2005 lancer

I will use TD04 and GReddy e-manage blue piggyback.

I understand the stock fuel injectors are 210cc, what size injectors do people running stage one boosted 4g18's run?

I saw the injectors from a 4G93Turbo are 390cc, would these be suitable and would they be a straight fit?

Also I think I would need to upgrade the fuel pump, what do people run on boosted 4G18's?

Many thanks

 

[^pomen_GTR^]

injector from 4g93t will fit... but im not sure if it is low impendance or high impendance (not sure your car running low or high type)

but it can be sorted out with some resistor pack mod....


on boost...i suggest u just run 0.4 bar which is stock wastegate direct pressure....no other boost controller needed....

for fuel pump, just go with any other aftermarket that run on turbine type of pump....no need the noisy gerotor/walbro type of pump....

 

[vr2turbo]

injector from 4g93t will fit... but im not sure if it is low impendance or high impendance (not sure your car running low or high type)

but it can be sorted out with some resistor pack mod....


on boost...i suggest u just run 0.4 bar which is stock wastegate direct pressure....no other boost controller needed....

for fuel pump, just go with any other aftermarket that run on turbine type of pump....no need the noisy gerotor/walbro type of pump....

Still need to reduce compression, right?

 

[jay_lancer]

Still need to reduce compression, right?

I have been told no need to reduce the compression to boost a 4g18 at lower pressures below 0.6 bar, currently the 4g18 can run 91 octane fuel but after the turbo conversion will run on 95 octane which will compensate for the increase in the pressure in the combustion chamber. Will probably starting off running 0.4 bar and seeing how that goes, maybe it will be enough.

 

[jay_lancer]

injector from 4g93t will fit... but im not sure if it is low impendance or high impendance (not sure your car running low or high type)

but it can be sorted out with some resistor pack mod....


on boost...i suggest u just run 0.4 bar which is stock wastegate direct pressure....no other boost controller needed....

for fuel pump, just go with any other aftermarket that run on turbine type of pump....no need the noisy gerotor/walbro type of pump....

thanks for the feedback, yes I agree to just run 0.4 bar stick wastegate pressure...do you know if all TD04's that have their stock wastegate intact run 0.4 bar?

I will research about the impendance rating of the injector's, thanks for highlighting that.

When you say aftermarket pump, for a turbo engine, do you know if an Evo pump would be suitable?

cheers

 

[vr2turbo]

I have been told no need to reduce the compression to boost a 4g18 at lower pressures below 0.6 bar, currently the 4g18 can run 91 octane fuel but after the turbo conversion will run on 95 octane which will compensate for the increase in the pressure in the combustion chamber. Will probably starting off running 0.4 bar and seeing how that goes, maybe it will be enough.

Read that the compression is 9.5, so with 0.4 bar boost should be okay. Any higher better reduce compression or need to change to forged pistons....

 

[4gbanger]

any evo or gsr fuelpump is enough i think.. 255lph is just not fully usable unless there's a future tune up to 300+ hp..

 

[jay_lancer]

Thanks for the replies, I will probably go with 0.4 bar using standard waste gate pressure to begin with at least, the shop in BKK said up to 0.6 would be ok, but 0.4-0.5 would be more safe. Using standard waste gate pressure will also keep the install more simple and save cost also.

cheers

 

[^pomen_GTR^]

thanks for the feedback, yes I agree to just run 0.4 bar stick wastegate pressure...do you know if all TD04's that have their stock wastegate intact run 0.4 bar?

I will research about the impendance rating of the injector's, thanks for highlighting that.

When you say aftermarket pump, for a turbo engine, do you know if an Evo pump would be suitable?

cheers

most oem turbo wastegate is rated at 0.3~0.4 bar if directly connected....

any higher boost pressure came from factory boost controller solenoid.....

as for your case to simplify and for the longevity of the engine, just connect the boost directly to wastegate for the base 0.3~0.4 bar boost pressure....

 

[vr2turbo]

Thanks for the replies, I will probably go with 0.4 bar using standard waste gate pressure to begin with at least, the shop in BKK said up to 0.6 would be ok, but 0.4-0.5 would be more safe. Using standard waste gate pressure will also keep the install more simple and save cost also.

cheers

Now say 0.4 enough, not until you experience the boost, from there you will want more.....hhahahha

 

[jay_lancer]

Now say 0.4 enough, not until you experience the boost, from there you will want more.....hhahahha

lets see, I am aiming for a all round useable car for daily fun driving, not a racing car or drag car, if I get 160 BHP it will be 60% more than stock and the Lancer is not a heavy car.

If I was going to a track car in Asia just for fun only I would probably go for an old RWD corolla AE70 maybe with an SR20DET swap, but that is just an idea for the future if I ever have the time and money LOL

I have had turbo car's in the UK and enjoy the feeling when they get on boost even on lower pressure boosted cars.

BTW I will get a custom exhaust made up soon at a local exhaust shop soon, will de-cat (thailand regs are pretty easy going about emissions )

I already have a Nitto back box which I will keep, don't want it too loud, what size diameter pipe do you recommend? was thinking of 2.25 inch, with a resonator mid way through, keeping in mind that I will go turbo in the near future.

I will get a bung welded in if I want to put a wideband sensor in later, where in the pipe should this be, and what is the best thread size for this?

Also do you know anything about 'ksport' coilovers? found someone local selling some for a good price on Facebook, everyone seems to like TEIN here but they are expensive.

Many thanks

 

[sweelt]

Ksport good. Tein is good but overpriced even for used one.

 

[sweelt]

for 160bhp.. make sure tires, brakes, suspension is the best your pocket can afford.
Adjust driving style accordingly, took me 1 yr just to get tires, suspension and brakes to work safely.
I run stock 4g93t, boost 0.7bar.
Left the rims only. Hunting in progress. Almost got it.
i had a nightmare during sleeping after night shift. My car unable to start...:afraid:

 

[jay_lancer]

I guess if all goes to plan I will have similar performance to a stock JDM Lancer Cedia Wagon Ralliart Turbo which as a 4G93 GDI Turbo engine.

http://www.automobile-catalog.com/auta_details1.php

I am basically going the same or better than the spec on one of those for tires, brakes, suspension

the stock JDM ralliart runs 195/50r16 rubber but i will be running 205/45r16 for example

I am lucky because my Thai spec Lancer has pretty good brakes already, it has rear disks as standard for example, will probably go with EBC brakes rotor upgrade and use EBC greenstuff pads at first using stock calipers, later might upgrade the front calipers to Nissan skyline R33 front calipers because this is a cost effective way to get 4 pots.

To be fair I have had a few car's that were more powerful than this one will be back in the UK so I should be fine, but thanks for the advice

Hope your car gets fixed easily mate, what car is it?

cheers

 

[sweelt]

is just a dream, no worry.
my car, good old proton wira.

base on mitsu 5th gen lancer.
http://www.automobile-catalog.com/model/mitsubishi/lancer_5gen.html
everything pnp..

 

[^pomen_GTR^]

lets see, I am aiming for a all round useable car for daily fun driving, not a racing car or drag car, if I get 160 BHP it will be 60% more than stock and the Lancer is not a heavy car.

If I was going to a track car in Asia just for fun only I would probably go for an old RWD corolla AE70 maybe with an SR20DET swap, but that is just an idea for the future if I ever have the time and money LOL

I have had turbo car's in the UK and enjoy the feeling when they get on boost even on lower pressure boosted cars.

BTW I will get a custom exhaust made up soon at a local exhaust shop soon, will de-cat (thailand regs are pretty easy going about emissions )

I already have a Nitto back box which I will keep, don't want it too loud, what size diameter pipe do you recommend? was thinking of 2.25 inch, with a resonator mid way through, keeping in mind that I will go turbo in the near future.

I will get a bung welded in if I want to put a wideband sensor in later, where in the pipe should this be, and what is the best thread size for this?

Also do you know anything about 'ksport' coilovers? found someone local selling some for a good price on Facebook, everyone seems to like TEIN here but they are expensive.

Many thanks

2.25" should be fine even for your turbo application

as for wideband o2 sensor, i would say about 6"~12" distance from your turbo downpipe later on should be good....

ksport coilover is ok...in fact, any serviceable coilover with damping adjustment and bodyshift type of construction, should be good... as long as u dont go for the spring rate that was too stiff for road use.... since lancer is quite a light car, i would say around 5k front and 3k rear should be sufficient for handling increase....

and dont forget, larger front and rear swaybars do help increasing road stability (just make sure to upgrade front and rear at the same time and using same or similar size increase percentage)

 

[parakey]

i had a nightmare during sleeping after night shift. My car unable to start...:afraid:

Welcome to my nightmare

Still wont start in the mornings.

 

[vr2turbo]

Welcome to my nightmare

Still wont start in the mornings.

After tank change, engine still no change, still don't want to wake up in the morning...........lol

 

[parakey]

After tank change, engine still no change, still don't want to wake up in the morning...........lol

He He ... talk about this in other thread

 

[jay_lancer]

hi

Thanks for all the replies so far, my coil-over's are now on and set up, not such a good photo but happy with the look and handling, the ride has not suffered much also.

My next big job will be to start the Turbo install. I have been looking around and I have found a few TF035 Turbo's for sale that are slightly cheaper than TD04's which was my original plan.

The TF035 is fitted as standard to the 4G15 MIVEC turbo and 4G93 GDI turbo engines so I was wondering if anyone knows if I used a TF035 I could bolt up the stock 4G15 MIVEC turbo manifold or stock 4G93 GDI turbo manifold to my 4G18?

Also could anyone advise me of any advantages or disadvantages of the TF035 v TD04 ?

Many thanks