4G15 tuning and related info

blazing · Postby **blazing** » July 25th, 2008, 6:30 pm

6AL MSD unit and blaster 2 coil.. proven to work

but why do you need this? the stock ign is quite good..

thomman · Postby **thomman** » December 16th, 2008, 5:31 am

Hi

Just converted my SOHC to DOHC can someone tell me whats the timing advance required to be set. Right now its 5 deg. Whats the recommended standard. Is this too little?

-sMoKe- · Postby **-sMoKe-** » December 18th, 2010, 6:36 pm

nice info..

denszio · Postby **denszio** » June 22nd, 2011, 10:13 pm

any specs on the best headers fit for our 4g15 DOHC? Kindly help me out guys...

*KRONIK* · Postby ***KRONIK*** » June 23rd, 2011, 8:57 am

http://www.rpw.com.au/shop/index.php?option=com_virtuemart&page=shop.browse&category_id=564&Itemid=1&Itemid=1&vmcchk=1&Itemid=1

when i had my CK i was saving to buy these extractors....

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i dint get thru

Ted_v2 · Postby **Ted_v2** » June 29th, 2011, 4:14 pm

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Ted_v2 · Postby **Ted_v2** » June 29th, 2011, 4:23 pm

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lancermods · Postby **lancermods** » August 4th, 2011, 6:34 pm

Hello guys, I know this is a very old topic, but i see a lot of information in it and would appreciate if anyone can help me out here.

My 4G15 engine in my Lancer seems to be missing on one cylinder. I did a compression test and here are the results:
1st: 10.45kg/cm2
2nd: 11.25kg/cm2
3rd: 11.5kg/cm2
4th: 11.75/cm2

Now, I know that there are some difference in the compression. But I dont know what is the normal compression for this engine? What should it be?

Also, I want to improve the output of my car a bit on the lower speeds... any ideas?

Please note that I am from India so getting hold on things may be hard for me.

My dad runs a car garage here, so any ideas for what I can do or get done to the engine to improve the output?

Looking forward to your responses.

Kanhai

Ashwin46 · Postby **Ashwin46** » November 27th, 2011, 12:52 pm

I have a Ecu chip and have to connect it to the IAT sensor , can sm1 telle me where is this found on the engine, i cnt find it
And do we hv any website which sell re map ecu

justmakingmoney · Postby **justmakingmoney** » October 7th, 2014, 8:09 pm

hmph hope i find the help i need here lol........here i gooo, So i have a 4g15 dohc with gearbox.....engine starts great, idles smooth , revs nice sound healthy and nice BUT when im driving the car i tend to get a stutter/break up/hold back around 3500/4500rpm then it accelerates nice again, i changed plugs, the wires, oil, gas filter, service the trottle body and injectors and still gets the problem.... when i advance the distributor it seemed to help it a bit but wen i advance 2much, the ignition rattles obviously.....so im thinkin is that the distributor needs changing.....any advice here guys

amitcb12 · Postby **amitcb12** » March 10th, 2015, 10:14 pm

Hey Venum,your info on the mods for the 4G15 DOHC engine were really helpful.I've a similar project going on.I did a conversion from 4G13 carb to the 4G15 DOHC.So far the only mods I've done include the installation of an adjustable fuel pressure regulator and K&N filter.I'm thinking about the addition of a multiple spark box.I also know this would require an upgrade of the spark plug wires.Can you or any of the other tuners help with the selection of a multiple spark box for this engine as well as where to get plug wires.All and any assistance will be helpful

Postby **Dave** » March 11th, 2015, 7:52 pm

Distributor type ignition right?
If so there are many msd units u can buy. All depends on your budget.
That fpr only makes sense with the msd unit. Plugs may also need to be changed and as for wires that may be tricky as u will need a spiral core set which would be hard to get for the dohc setup. May need a carb set and hopefully the plug holes won't get wet.

88sins · Postby **88sins** » June 13th, 2015, 8:37 am

Anyone kno where I could get the crankshaft pulley for the 4G15 DOHC?

ShaKarz · Postby **ShaKarz** » August 12th, 2015, 10:25 pm

Nice thread, I have a 4g15T mivec from the company, came in d ralliart colt, no retune done yet, iv managed to raise boost to 15psi with no issue. I researched dyno sheets showing k&n panel filter works better in this context bay vs pod filter due to hot air intake by pod. Iv also done d cat back exhaust mod, what other mods can be done before I do a base dyno check? Aiming at about 200 whp on this one as that's enough power to get this lil weight going. Any input would be appreciated.

Talibansound · Postby **Talibansound** » September 22nd, 2015, 8:27 pm

Hey guys .. New to the lancer front , it's my first car .. Ck4 4g15 automatic !!! I have a question if anyone can assist that will be great .. Car drive normally... all of a sudden at about 20-25 mph it bucks and u hear like the axels moving forwards an backwards ... It makes a kinda clicking noise...once I step up on gas it stops immediately don't have any clue what it can be ... Bought the car less than two weeks ago.. Thanks guys

Ted_v2 · Postby **Ted_v2** » September 23rd, 2015, 5:03 am

Plugs. Fuel filter. Injectors.
Seem to be a mis at lower rpm. Start with a general service and work from there. Pull out dizzy cap and check the electrode. I had a similar situation and I cleaned out the dizzy cap and I was good

Talibansound · Postby **Talibansound** » September 23rd, 2015, 5:55 am

Thanks man !! I'll try these steps and let u know

Talibansound · Postby **Talibansound** » September 23rd, 2015, 6:35 am

By the way where is the dizzy cap located ??

Postby **Dave** » September 25th, 2015, 3:53 pm

Follow the sparkplugs then the wires that attaches to them to the end of the wire where 4 others plug into. That is the distributor cap.

Talibansound · Postby **Talibansound** » September 26th, 2015, 6:28 pm

Or !!! Hahahaha the guy said dizzy cap ... Lol must the term used for distributor ... Didn't know .. But I know where it is .. Thanks man ..

matrixneo · Postby **matrixneo** » October 25th, 2015, 10:02 pm

hi whats the best body oil would u suggest for the 4g15 DOHC, I was told it uses a thin body oil ?? can anyone verify whats the best from your experience thanks

*KRONIK* · Postby ***KRONIK*** » October 26th, 2015, 6:32 am

shell 10/15W40 works great...blue bottle

matrixneo · Postby **matrixneo** » October 26th, 2015, 6:41 am

ok thanks because im hearing that ticking sound of the engine, so i hope that works thanks alot

Talibansound · Postby **Talibansound** » October 27th, 2015, 12:44 pm

Jus an update to the problem I was having !! I did a full service ...problem still was there .. Went by a another mechanic he unjacked the speed sensor and the problem stopped..!! changed it but same problem again !!! Anybody got this before ??

dklion · Postby **dklion** » November 2nd, 2015, 3:45 pm

Goood day peeps....I have a ck2 lancer wit a 4g15 twin cam and tiptronic set up....problem I have been getting for the past 10 months is that wen my engine is cold my car speeds up and jerks wen changing from first to second and second to third.....wen the car warms up gears change relatively smoothly wit a slight jerk....if I put the car in neutral then move to drive it slams into drive same for reverse....changed all 4 mounts... Dis a diagnosis on car engine and tranny came up wit no faults... Any one has any ideas?

Talibansound · Postby **Talibansound** » November 2nd, 2015, 10:40 pm

Had the same with the gears slamming !! Change your tps and u should be ok ... Or it wants setting properly ... Been having the issue with the car jerking too ... Unplug the speed sensor and see if the problem is still there ... If that stops !! well start from there that worked for me but changing it won't help.. Have to still find the main source of this problem .. I have my speed sensor out right now .. Can't read the tach but rpm still works !!!

konartis · Postby **konartis** » November 9th, 2015, 7:43 pm

dklion wrote:Goood day peeps....I have a ck2 lancer wit a 4g15 twin cam and tiptronic set up....problem I have been getting for the past 10 months is that wen my engine is cold my car speeds up and jerks wen changing from first to second and second to third.....wen the car warms up gears change relatively smoothly wit a slight jerk....if I put the car in neutral then move to drive it slams into drive same for reverse....changed all 4 mounts... Dis a diagnosis on car engine and tranny came up wit no faults... Any one has any ideas?

There is a return spring in the tranny that breaks over time, it helps the smooth transition of gears...see if that is causing it. I know nissan has them and causes this problem.