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turbo a 4g63 16valve SOHC

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1993 Eagle 2000GTX

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Jan 14, 2013
Abbotsford, BC, Canada
I was wondering if anyone else has the 4g63 16v (not 8 valve) SOHC motor, and if so if anyone has turbo'd it. I would like to keep the SOHC, and not swap in a DOHC.

Thanks
 
I would just dwap toa 4g turbo motor..Instead in messing around with swapping this or that, just to have a turbo..

Seems more simple to me, and that way, you can start modding the stock turbo motor, rather than messing with tuning and what not for the n/t with turbo..
 
They never made a SOHC 4g63 there only DOHC. SOHC might he the 420A engine hut I know nothing on them engines

At least ive never heard of it anyway sorry if im wrong
 
Never mind me I just googled it Mitsubishi Sirius engine - Wikipedia, the free encyclopedia and it appears they were in tue galants and thats why ive never heard of it

Its a 1g car..1gs never came with a 420a it was either the n/t 4g motor, or the 1.8..

I would still swap to a turbo motor to be honest..

Op has a galant so I figured after he was on about that car and not a 1g

I was wondering if anyone else has the 4g63 16v (not 8 valve) SOHC motor, and if so if anyone has turbo'd it. I would like to keep the SOHC, and not swap in a DOHC.

Thanks

What im trying to figure out is your post! You say who has the sohc 16v NOT 8v but the 16v is only dohc. From what I read on that link I found it was 8v only on the sohc.
 
Im missed where it says galant gsx...The galant gsx is the awd n/t version of the galant.Which came with the 4g n/t.

So very similar to your n/t 1g as fas as motor is concerened..But its bsically an awd n/t galant..Well, not basically, thats what it is..
 
Im missed where it says galant gsx...The galant gsx is the awd n/t version of the galant.Which came with the 4g n/t.

So very similar to your n/t 1g as fas as motor is concerened..But its bsically an awd n/t galant..Well, not basically, thats what it is..

Im now a little bit smarter now, I did not know all that, ive never really studied the galant and engines
 
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No need for that..We have alot of members with almost pointless info in there brains..Like this thread in question.

Not many dsmers really know, ohh hey the galant gsx yeah,I know what that is...

Just stuff we pick up over time..No need to learn about his stuff..As long as you see a thread like this in a year and go..Hey I can asnwer that question..Just pass it on down the road is all we ask..;)
 
420a only came in 2G's as the non-turbo motors. They are all DOHC.

I know only the 2g came with them from the factory N/T and also the export 4g63 N/T aswell

No need for that..We have alot of members with almost pointless info in there brains..Like this thread in question.

Not many dsmers really know, ohh hey the galant gsx yeah,I know what that is...

Just stuff we pick up over time..No need to learn about his stuff..As long as you see a thread like this in a year and go..Hey I can asnwer that question..Just pass it on down the road is all we ask..;)

No need for what?? Sorry im now lost in the convo!! As I never heard of a SOHC in our cars it was my first response to say the 4g63 was not a SOHC. And if I was wrong I am sorry
 
The car is actually a 1993 eagle 2000gtx, its front wheel drive with engine code 4g63...
I know there are 16 valves because I have taken the head off, and it also shows up in my service manual,
For the timing belt tensioner, there is one for a 8 valve and a 16 valve sohc...

I know its a weird motor, cause I cant find out anything about it, if I want to keep the motor, what kind of motor power upgrades would bolt on?
 
Its hard to say unless you find the rare other person that has that engine and has not decided to swap to something better.

Might be able to find a header for a 4g64 SOHC, cold air intake, that would be about it.
 
You're looking for power from an engine that's not really in high reputability with the community. For people who rarely put their hands on 'performance' upgrades for an NA 4G63, sticking something like the SOHC version or the 1.8 in front of them will yield even less results.

I'd look into very basic things such as basic upkeep and maintenance. Clean up the intake a bit. Don't delve into something like a massive exhaust for it. If you truly love the motor and just don't want to let it go, rebuilt it to factory specs and perhaps look into sharing a little love with the porting on the head - but again that engine just wasn't made to be a performance pig and you're not going to find a ton of supporting mods for it. If you want to look into performance, look into making the switch to a stock Turbo 4G63. That'd be interesting to see in a 2000GTX

Edit :

Mayhaps it's this engine?

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to bud92, my car is fwd not awd, which is weird..

and XiKeiyaZI, that is not mine, that looks like a 4g37, or 8 valve, maybe 1.8 litre..

these pictures are what my motor is, and it cant be an after market engine because i wrecked the head when the timing went and ordered the same motor from a junkyard...



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http://i.ebayimg.com/t/NEW-REMAN-MITSUBISHI-GALANT-2-0-LITER-4G63-SOHC-ENGINE-1992-1993-/08/!Bq3kLgw!mk~$(KGrHqYH-CgEvDpM-RGrBL)OWFCvE!~~_35.JPG

I found out something interesting, the 16 valve sohc is the same head that came on the 4g64, it just has the 4g63 block. Look at the head on this pic...

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Sorry about that i probably should have mentioned you can swap on a 4g head to those motors i totally forgot..I myself would do 1g rods and pistons while i have the motor apart.


A fwd galant gsx..Soo thats weird..maybe a previous owner blew stuff up and swapped it..I thought the gsx only came in fwd..I learned something today.


That looks like the 1.8,but the oil cap is on the passenger side:hmm:
 
Well, my car is an Eagle 2000 GTX, which looks exactly like a VR4, and that's why it might be a weird motor.. and when you say 4g, what year is that? and that last motor is a 2 litre..
 
the head i pulled of my 93 expo 4g64 7 bolt engine was a SOHC 16 valve. my thought is its a similiar version of that cylinder head.

unfortunately i dont have any pics of just the valve side of the head, nor do i have any experience with the SOHC motor.

i dont think theres alot of performance parts for that head, so cams would be custom regrind ######.
 

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Actually RPW does make a cam for the 4G64 SOHC head, actually they make 3 different turbo cams for it.
A 4G64 SOHC head should swap on, I think 94-95 Galants had a distributor, so did the 2.4 4G64 SOHC Eagle Summit wagon and Mistubishi Expo/LRV. All those were 16v SOHC heads and distributor (used same size distributor to, I've swapped them in out with each other).

The main thing to find out is your factory 4G63 SOHC compression ratio. Most 4G64 SOHC Turbo conversions on sites say its safe to run about 8 psi (with there stock compression), some people have run 10-12 psi on the stock bottom end.

Other then that you should be able to swap the 4G63 turbo parts on to your car. The turbo manifold, etc. You need to find out if you use high or low impedance injectors. 4G64 SOHC engines use High, so if your injectors are high impedance you would need a resistor pack wired in to use 4G63 turbo injectors.
When I started out as 4G64 SOHC turbo, I used Mazda RX-7 550cc factory high impedance injectors. They were plug and play (oval plug) for me. But FIC make high impedance injectors and all you have to do is swap the injector plugs.

I would probably follow the 4G64 SOHC turbo builds on the Galant sites, 7g (94-95 had distributors) and use what they did and modify what you need for your 4G63 SOHC engine.

Make sure to get some kind of tuning device For low boost a SAFC will be just fine along with a wideband 02 sensor.

Since your using a 2.0 SOHC I would use a 14B turbo.
 
I was wondering if anyone else has the 4g63 16v (not 8 valve) SOHC motor, and if so if anyone has turbo'd it. I would like to keep the SOHC, and not swap in a DOHC.

Thanks
Did you ever get around to doing anything with this ? I'm running the same engine there very common in nz alot of sohc parts bolt straight on if you havnt leant that already
 
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