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6G74/75 in FTO (not possible)
Posted: Thu May 03, 2012 8:41 pm
by Akys
Due to my old engine, I am planning to do an engine conversion( yes, CONVERSION again

). I want a fast acceleration over top speed FTO, but still a daily drive so fuel efficiency comes into the picture. So i had came to an answer (sorta). A 6g74 from magna or 6g75 from 380. reasons being, its a common car in australia so parts will be ok, its still mitsu, it had been done before in UK i think( no, i am not into EVO conversion), apparently 6g74 respond well to mods like airflow and ECU mod( means i get to use my existing).
I drove a magna once and i think those cars actualy accelerate hard. So an engine with 155kw (at the flywheel i think) not so much different from an FTO, but the torque figure is 316nm. (FTO 200nm). Put that in a FTO = 252.8nm/tonne( increased the weight of the FTO as the 6g is heavier)
bear in mind, this is just the initial satge where its all research, number, words.There are still a lot of homework to do so dont take the calculations for it.
6g74 might also give me room for future forced induction mod when the FTO is no longer my daily drive.
Now looking at 6g's halfcut or nosecut as we think that gearbox is needed so might as well. then it will come with wiring loom and ecu
Any help or info welcome as the conversion wont really take place till July, for now its research time
Cheers

Re: 6G74/75 in FTO
Posted: Thu May 03, 2012 9:04 pm
by Astron_Boy
as you made a post, will reply here.
Yes, you will need the gearbox too.
6A12 and 6G7X don't share same bell housing stud patterns.
Can be done, been done before, but only with a 6G72.
The 74 engine is the same, simply heavier and (different heads?).
75 is a lot more different, lot less common and unsure about that, the Magna boys would know, I know a guy who did the 75 conversion...
The 6G is a better platform for power.
The 6A is a more balanced engine for the car (?)
Wiring, ecu, engine, gearbox, new clutch lead line, cables.......... unsure.
Will have to mod the side engine mounts, cross member (should) be ok, but I'd find a gen 3 and measure up.
otherwise yeah, should do fine.
My personal recomendation is to find a 6G72 N/A from a GTO. Nicer motor with more torque/ power from the get go.
Re: 6G74/75 in FTO
Posted: Thu May 03, 2012 9:16 pm
by phunkydude
Have you got a ballpark figure on what the total cost is going to be?
I would say those 6g74/75 not worth it if it's going to cost you a lot for the conversion.
If you're going for it, i would suggest a more powerful conversion.
6g72 mivec from Mitsu Diamante : 270hp/304nm torque.
^3 litre NA - i suppose it would have better fuel consumption than 3.5/3.8litre
Re: 6G74/75 in FTO
Posted: Thu May 03, 2012 9:19 pm
by Astron_Boy
Good luck finding one.
Even the Magna boys don't have those installed here...
Finally found the website
http://3litrev6.com/index.html
Took me a while.
Re: 6G74/75 in FTO
Posted: Thu May 03, 2012 9:44 pm
by Akys
Astron_Boy wrote:
My personal recomendation is to find a 6G72 N/A from a GTO. Nicer motor with more torque/ power from the get go.
i thought 6G72 from GTO is opposite from FTo. That makes the conversion harder. lols
Still researching. See what happens after i did all my homework. Might pop in the magna club for some 6G info
phunkydude wrote:Have you got a ballpark figure on what the total cost is going to be?
I would say those 6g74/75 not worth it if it's going to cost you a lot for the conversion.
If you're going for it, i would suggest a more powerful conversion.
6g72 mivec from Mitsu Diamante : 270hp/304nm torque.
^3 litre NA - i suppose it would have better fuel consumption than 3.5/3.8litre
not yet, both the mech and i are assuming it will be lesser then turbocharging and lesser mocking, possible issue will be mounting the engine and how it seats.
looked at Diamante, and as Astron Boy said, its hard to come by.
Re: 6G74/75 in FTO
Posted: Thu May 03, 2012 9:47 pm
by Astron_Boy
Akys wrote:Astron_Boy wrote:
My personal recomendation is to find a 6G72 N/A from a GTO. Nicer motor with more torque/ power from the get go.
i thought 6G72 from GTO is opposite from FTo. That makes the conversion harder. lols
Sorry, I keep forgetting I'm talking about an FTO which is the other way around.
Yes, won't work.
You need a diamante 6g72 (can't get here)
Magna 6g74
380, 6g75
Re: 6G74/75 in FTO
Posted: Thu May 03, 2012 11:42 pm
by Daniel2019
Whats happening with the engine from dwayne then haha
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 12:07 am
by Akys
Daniel2019 wrote:Whats happening with the engine from dwayne then haha
just sitting in the garage for nothing. lols. send me txt if you want to works things out with me as i dont come here everyday
was gonna rebuild it but at the end of the day, it will still be a 6A12. i want to try other ways for a faster N/A fto hence this thread. Ben and few had Turbo FTO, Rob's supercharged is nearly done so ya
and who knows, might end up getting the 6G74supercharger kit when we manage to do the conversion
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 12:15 am
by Astron_Boy
You'd have fun fitting that under the hood!

Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 12:19 am
by spetz
Find out the legality of this, as maybe you simply won't be able to register it.
Also, consider the cost and maybe it's not worthwhile as you'd probably get a cheaper and easier conversion, more fuel efficient and powerful by using a 6A13TT/4G63T
To give you an idea, 6G75 in a Lancer coupe:

Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 12:31 am
by Akys
Astron_Boy wrote:You'd have fun fitting that under the hood!

i know. thats why its still a plan. I can't find the pic of the 6g FTO anymore. It was blue
most prob wont be able toclose the bonnet all the way
spetz wrote:Find out the legality of this, as maybe you simply won't be able to register it.
Also, consider the cost and maybe it's not worthwhile as you'd probably get a cheaper and easier conversion, more fuel efficient and powerful by using a 6A13TT/4G63T
To give you an idea, 6G75 in a Lancer coupe:

thanks spetz, i've seen the picture. And i will ring some engineers and see what they say.
i seriously doubt that 6A13TT/4G63T will be more fuel efficient compare to the 6G.
If i am not wrong, a properly tuned 6G74 uses 12L/100km
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 1:29 am
by phunkydude
i get less than 300kms per tank. Fto got a 60l tank, so say about 20l/100km ?
but mine is not fine tuned yet, so can't really compare.
my fuel gauge needle would drop half a quarter when starting it up
Benz's got big injectors and tuned to performance.
So yeah, it's hard to get a balance between fuel consumption and performance.
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 1:58 am
by spetz
The 4G63T will "potentially" use more fuel, but certainly if you drive it carefully off boost it should be more economical than a 3.5?
The car was red not blue:
http://homepage.ntlworld.com/james.bich ... FTO/Small/
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 9:20 am
by Astron_Boy
I have always found the Mitsi turbo motors to be more thirstier than the N/A.
The 4G63 (atleast the earlier examples) were very thirsty, didn't help the cars had small gas tanks.
The issue too is that you can't increase the capacity of the engine above 20% without getting it engineered.
It's a gray area and one I have countless times been on the phone about.
If you can make the 72 look factory (sadly the mounts wont) then slap it in, better brakes and be done with it.
Blue slipping the engine makes things fun as that motor is listed as 3 liters though...
I dare say your biggest cost will be mount fabrication, hose adjustment (power steering, a/c) and custom drive shafts.
This is going on the basis of you doing the work.
So perhaps my comment there is redundant.
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 11:47 am
by Akys
phunkydude wrote:i get less than 300kms per tank. Fto got a 60l tank, so say about 20l/100km ?
thats nearly double my current fuel consumption. Ben got around the same too.
thanks. my bad. was looking for it. thought it was blue
Astron_Boy wrote:I have always found the Mitsi turbo motors to be more thirstier than the N/A.
The 4G63 (atleast the earlier examples) were very thirsty, didn't help the cars had small gas tanks.
The issue too is that you can't increase the capacity of the engine above 20% without getting it engineered.
It's a gray area and one I have countless times been on the phone about.
If you can make the 72 look factory (sadly the mounts wont) then slap it in, better brakes and be done with it.
Blue slipping the engine makes things fun as that motor is listed as 3 liters though...
I dare say your biggest cost will be mount fabrication, hose adjustment (power steering, a/c) and custom drive shafts.
This is going on the basis of you doing the work.
So perhaps my comment there is redundant.
yup, getting it engineered will be a pain. one of an engineer recommended is in Kirawee, 1 hour drive away from me
and thought about the mountings and stuff thats why half cut is the plan, test "fit" with either the FTO parts or the Magna parts.
btw, the 6g72 you mention is the magna/verada's or 3000gt? 72 in magna is SOHC right?
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 11:51 am
by Astron_Boy
all 6g7X excluding 75(i believe) are sohc.
We never got the dohc variant out here.
The 72 I'm referring to is from the Japanese/ USDM variant of the Magna called the Diamante.
They had the dohc variant, 72 and 74 from factory before being replaced with the Galant.
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 4:22 pm
by phunkydude
Astron_Boy wrote:
The issue too is that you can't increase the capacity of the engine above 20% without getting it engineered.
It's a gray area and one I have countless times been on the phone about.
Whereas in qld, just slapped on a blue mod plate and got it registered w/o the car driven there.

Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 8:47 pm
by payaya
The Magna use to have a 3.0L 6g72 didn't it? A 3.5 litre magna motor in an FTO will make it fly!!
Re: 6G74/75 in FTO
Posted: Fri May 04, 2012 9:12 pm
by Astron_Boy
payaya wrote:The Magna use to have a 3.0L 6g72 didn't it? A 3.5 litre magna motor in an FTO will make it fly!!
Yeah they did.
But the 74 is a better choice.
75 if you can grab one ultimately!
Re: 6G74/75 in FTO
Posted: Sat May 05, 2012 12:35 am
by spetz
Astron Boy the 6G75 is still SOHC.
Some Hyundais (Grandeur) use a 6G72 DOHC, also I think some Pajeros etc