What is the engine in a V6-24V Galant?

[Robotnik123]

It is a 6A13 right? What is this engine's compression ratio?

[zentac]

Its a SOHC 6A13 in the V6 Galants. Mitsi did also make a DOHC 6A13 NA and the Twin Turbo in the VR4's.

[Gly]

what car has a 6a13 dohc?? i thought they only did the sohc 6a13, and a dohc 6a12.

[bradc]

AFAIK there are these variants of 6Axx

6A10 - 1.6 litre V6 used in some lancers in the early 90's, evo1-3 sort of shape lancers.

6A11 - 1.8 litre V6 used in emeraudes and possibly charisma's in the mid 90's.

6A12 - std models used on 7G galants, fto's

6A12 mivec - used on galant VR-M, fto's

6A12TT - 7G VR-4

6A13 sohc - used on galant 8G's

6A13TT - no explaination needed :)

I don't know of a dohc 6a13 non turbo at all.

[Robotnik123]

Does anybody know the compression ratio on the 6A13 NA? It must be higher than the 8.5 to 1 on the 6A13TT right?

I saw a 2.5 STR Legnum today and that car had a GDI badge on it, so I assume the 6A13NA must have very high compresssion.

[Gly]

the comp ratio on the n/a 2.5l v6 is 9:1

& STR's (2.5 v6) are not GDI,
someones just got the car badged wrong.


theres the 2.4 viento GDI,
that has a comp ratio of 11.5:1

but its a inline 4,


http://english.auto.vl.ru/catalog/mitsubishi/legnum/

[Paul Beazer]

Just out of interest, was the 6A13 only used in galants, or was it used in anything else, say for example Shoguns or similar?

[zentac]

Bardc, Not having a go here ... but ... I dont deal in guess work, or hearsay I deal in facts... When I state that there are three different 6A13 engines, this is because they are! Kempys in NZ had 3 x 6A13 DOHC engines in from Galants. I had the cams out of one, they put another into an FTO (Project K) and the third they sent off to RPW in Auz. The 6A13 DOHC does exist.

[Wodjno]

As Richard said :2thumbsup

I know this has been posted elsewhere on these forums. :inquisiti But can't be bovvered to look for it.. But here it is again :happy: #


Engine HP Chart

4G61
Type: 1595cc EFI DOHC 16v Inline4
Power: 97kw @ 6500rpm
Torque: 144nm @ 5200rpm
Gearboxes: FWD 5spd
Source: 1990-91 Lancer GSR

4G61
Type: 1595cc EFI DOHC 16v Inline4 Turbo
Power: 108kw @ 6000rpm
Torque: 206nm @ 2500rpm
Gearboxes: FWD 5spd
Source: 87-89 Mirage Cyborg R

G32B
Type: 1597cc EFI OHC Inline4 Turbo
Power: 89.5kw @ 5500rpm
Torque: 171nm @ 3000rpm
Gearboxes: FWD 5spd
Source: 83-84 Mirage Turbo

4G92
Type: 1597cc EFI DOHC 16v Inline4
Power: 108kw @ 7000rpm
Torque: 148nm @ 5500rpm
Gearboxes: FWD 5spd and 4WD 4spd Auto
Source: 92-93 Lancer MR

4G92G MIVEC
Type: 1597cc EFI DOHC 16v Inline4 with variable valve timing
Power: 131kw @ 7500rpm
Torque: 167nm @ 7000rpm
Gearboxes: FWD 5spd
Source: 1992-95 Lancer Cyborg R 3dr and coupe, 96-97 Mirage ZR and Asti RX

4G93 Turbo
Type: 1834cc EFI DOHC 16v Inline4 Turbo
Power: 145kw @ 6000rpm
Torque: 270nm @ 3000rpm
Gearboxes: 4WD 5spd
Source: 92-93 Lancer GSR

4G63
See Evolution Write up.

6A12
Type: 1998cc EFI DOHC 24v V6
Power: 110kw @ 6700rpm
Torque: 179Nm @ 4000rpm
Gearboxes: FWD and 4WD 5spd and 4spd auto
Source: 1992-1996 Galant and Emeraude, FTO

6A12G MIVEC
Type: 1998cc EFI DOHC 24v V6 with variable valve timing
Power: 150kw @ 7500rpm
Torque: 200nm @ 6000rpm
Gearboxes: FWD 5spd, 4spd auto
Source: 1994-on FTO GPX and 1992-1996 Galant VX-R, 1996- Galant VR-M

6A12 Twin Turbo
Type: 1998cc EFI DOHC 24v V6 Twin Turbo
Power: 179kw @ 6000rpm
Torque: 309Nm @ 3500rpm
Gearboxes : 4WD 5spd and 4spd auto
Source: 1992-1996 Galant VR-4 and Galant GT Sport

6A13
Type: 2498cc EFI DOHC 24v V6
Power: 125kw @ 6000rpm
Torque: 215Nm @ 4000rpm
Gearboxes: FWD 5spd and 4/5spd auto
Source: 1996-onwards Galant

6A13 Twin Turbo
Type: 2498cc EFI DOHC 24v V6 Twin Turbo
Power: 208kw @ 5500rpm
Torque: 363nm @ 4000rpm
Gearboxes: AWD 5spd
Source: 96-97 Galant VR4

G54B
Type: 2555cc EFI OHC Inline4 Turbo
Power: 130kw @ 5000rpm
Torque: 313nm @ 3000rpm
Gearboxes: RWD 5spd and 4spd Auto
Source: 88-89 Starion 2600 GSR-VR

6G72
Type: 2972cc EFI DOHC 24v V6
Power: 157kw @ 6000rpm
Torque: 270nm @ 3000rpm
Gearboxes: FWD 4spd auto
Source: 92-93 Diamante (Magma), GTO

6G72 MIVEC
Type: 2972cc EFI DOHC 24v V6 with variable valve timing
Power: 201kw @ 7000rpm
Torque: 301nm @ 4500rpm
Gearboxes: FWD 5spd and 4spd Auto
Source: 96-97 Diamante 30M-SE

6G72 Twin Turbo
Type: 2972cc EFI DOHC 24v V6 Twin Turbo
Power: 208kw @ 6000rpm
Torque: 426nm @ 2500rpm
Gearboxes: 4WD East-West 6spd
Source: 1994-on GTO (3000GT)

6G74
Type: 3498cc EFI DOHC 24v V6
Power: 194kw @ 6000rpm
Torque: 323nm @ 4500rpm
Gearboxes: FWD 4spd auto
Source: 92-93 Debonair

[bradc]

Thats cool, do you know what cars they actually shipped in? I've only ever heard of 6a13's going into 8G Galants, and everything I've seen has said sohc, do you know how much power the dohc one had, and what cars they were shipped in?

Actually now that you mention that, I remember you saying something about those 3x dohc engines at kempy's

[bradc]

WODJ, the standard 6a13 sohc is rated at 125kw, surely the dohc would be rated at something higher than that?

[colVR4]

I'm really confused now. I thought that the V6-24V (N/A 6A13) was a SOHC, whereas the VR4 (6A13TT) was a DOHC. Therefore I can't see a reason for there not being a N/A 6A13 DOHC...just a TT without the TT!!!

[The Vee]

Col, yes the 6a13TT is a DOHC. The 3 N/A versions I would have thought would be a higher compression ratio than the TT but I'm guessing.

[gdelargy]

I'm getting conflicting info on the mysterious 6A13 DOHC...



Camskill lists some parts (http://www.camskill.co.uk/products.php?plid=m3b49s596p441) for, among others, the EA5A ('97-'01) Galant 2.5 V6 4wd 4ws. My usual source for Galant codes (http://english.auto.vl.ru/catalog/mitsubishi/galant/) doesn't list that model, but I think it might be Antipodean only?


There's a thread on the FTO OC forums (http://www.ftooc.org/phpbb/viewtopic.php?t=5947&start=63) where Mitsiman discusses an RPW project, but he says they used a 6A13 block and 6A12 DOHC heads. However, he does mention a 6A13 DOHC later in the same post.


At the FTO Australia forums (http://www.ftoaustralia.com/modules.php?name=Forums&file=viewtopic&t=4979), there's a back and forth discussion about it. Looks like the conclusion was that the engine wasn't officially released at all.


WODJNO's list only includes two 6A13s. I'm with bradc on this bit ~ the data given is for the SOHC version. If the 6A13 DOHC officially exists, it's surely going to have higher power/torque figures than those listed. We know there's a SOHC and a DOHC TT, so if there's a n/a DOHC there should be three sets of figures listed, no?


I wouldn't mind getting this cleared up as I'd like to correct any errors/omissions in Wikipedia's 6A1x article (http://en.wikipedia.org/wiki/Mitsubishi_6A1x_engine). Clearly there are DOHC 6A13s around, but are they 'Mitsufficial' production engines?


Regards,
G

[zentac]

I never believe anything Wikipedia says as people can write anything in there! They only write what they "think" they know. For example that article is missing the 6A11 which was a 1.8. It doesnt mention the changes to the 6A12, 2.0 DOHC to take it up to 180PS after 1997. How can it claim that the 2.5L DOHC twin turbo is 280PS when the majority were probably 260PS auto's. No mention of different ECU's giving different power. How can you say an engine gives 280ps when its the tuning in the ECU that decides the power, Ive seen the same ECU's re-programmed to give as little as 260 and over 300PS.

Anyway back on topic.... Whilst talking to Kempys over the last 7 years we came to the conclusion that the 6A13 DOHC may have only been produced for crashtests and may never have been released, but they had 3 of them.

[zedy1]

well i think the 6a13 in the v6-24 is dohc but has only one pulley on the belt side then geared under the rocker :thinking:

[Kieran]

I never believe anything Wikipedia says as people can write anything in there!

And, wandering off topic again for a second in defense of Wiki....

There's a lot of useful information in the Wiki.... Take your points about the 6A11 and the changes to the FTO 6A12, but that's missing information, not inaccurate information. And that's the the whole point of Wiki - like nearly every other publication on the planet, it can't be 100% comprehensive. The best it can be is as comprehensive as possible and as accurate as possible. Why not add the missing info and make it more comprehensive? ;)

It claims 280bhp for the twin-turbo because that's the rating Mitsubishi applied to it. End of. We know they pegged it back for the Pre-facelift tips, but I would argue that's the exception, especially when you consider that from mid 1998 they all went to a 280bhp rating anyway. Hear what you say about engine outputs ultimately being ECU controlled and there will of course be some variance between individual engines, but if wiki was to cover this, the article would be absurdly big - mainly because they'd have to list every single 6A13 engine ever produced and what power it put out!

Back on topic....The non turbo DOHCis an interesting one, though untill I am shown a picture of one, I am doubtful. I'm sure it's never been used in any of the markets the Galant was sold in.... So how did Kempys get hold of it? And why would they build an engine just for crash testing if they were never going to use it? Curious....:inquisiti :speechles

[gdelargy]

I never believe anything Wikipedia says as people can write anything in there!
Personally, I don't believe anything I read anywhere on the 'net unless I can find corroborating evidence elsewhere. Wikipedia's no worse than any other site. Its biggest fault is also its strength; while it suffers from rampant (http://en.wikipedia.org/wiki/George_W._Bush) vandalism (http://en.wikipedia.org/wiki/Terry_Schiavo) on controversial subjects, the missing info on the 6A11 is now included in the Mitsubishi engine article less than 12 hours after you noted its omission. And if I say so myself, that article is an improvement over the one I came across two months ago (http://en.wikipedia.org/w/index.php?title=Mitsubishi_6A1x_engine&oldid=42830197).
:)

I'll now start to hunt down the 6A12 as well as per Wikipedia policy. I've already tried FTO Ireland's buying guide (http://www.fto-ireland.com/buyingguide.html), Mitsubishi-FTO.org's specs page (http://www.mitsubishi-fto.org/info/specs.htm) and the FTO Owners' Club engine page (http://www.ftooc.org/?section=engines), but none of them had info on the pre- and post-1997 versions either. I guess Auto.vl.ru (http://english.auto.vl.ru/catalog/mitsubishi/) and Carfolio (http://www.carfolio.com/specifications/models/?man=4131&Mitsubishi) will be my next ports of call...


EDIT: Auto.vl.ru has some info, so that's now been added as well. Any more comments / suggestions to improve the article further?


Regards,
G
(Wikipedia contributor and CVR4 thread hijacker)

[Paul Beazer]

Just to confuse matters further, i thought each cylinder head in the 6A13 had a single cam operating both inlet and exhaust valves, hence "DOHC" for the engine, whereas the 6A13TT has completely different head with TWO cams in each head (im assuming 1 for inlet and 1 for exhaust), so should actually be a "quad" cam engine?
Perhaps the engines in Kempy's were 6A13TT with turbos removed for some reason or they were test / development engines?

[Rikki]

i thought the engine was a DOHC, i seem to remember seeing something about written in the book and on the engine, but i could be wrong.

[The Vee]

Lets clear this up!! PB you're technically correct with the TT being four (quad) cams. But it is the head that the term refers to. Therefore our TT engines which have 2 cams per head are known as DOHC, its just that being a vee, we have 2 heads. Each has a DOHC and one cam for inlet and the other for exhaust valves in each head. The V6 24 SOHC N/A is indeed A SOHC per head operating both sets of valves for each bank of cylinders in the Vee.
Hope this helps

[Paul Beazer]

Sweet im right AND you're right!
Thanks Andy, still dont know about the holy grail i.e. the DOHC V6 n/a engine tho!

[psbarham]

well i think the 6a13 in the v6-24 is dohc but has only one pulley on the belt side then geared under the rocker :thinking:
nah theres only one cam per bank with only 6 lobes on it 3 inlet and 3 exhaust , each lobe uses 'V' finger rockers to operate 2 valves . i think it is known as cack handed way of doing things

[Wodjno]

Sweet im right AND you're right!
Thanks Andy, still dont know about the holy grail i.e. the DOHC V6 n/a engine tho!

I think where the confusion is coming from is that the N/A V6 is being called a DOHC by some peeps :inquisiti Although it has 2 cams it is not a DOHC as there is only 1 Cam per bank of 3, but this obviously adds up to 2 cams, and cos there are 2 cams people through there lack of knowledge are understanding these 2 cams as being DOHC. :thinking:
As just explained by the members above..(Andy, Paul etc) :happy:

And if you weren't confused before, you will be now..

So there is no Holy Grail :thinking:

[bradc]

WODJNO, if you read back earlier in the thread, there are some DOHC 6A13's out there, but the english speaking world only knows of 3, all of which have been used for other things.

I for one would quite like to take on a mission of modifying the V6 to make as much power as a VR-4, but first I have to take the VR-4 to a huge power level.

[Wodjno]

I saw that posted :) But they cannot be Factory standard engines ??

[zentac]

To settle this once and for all....

Here is the story of the 6A13 DOHC donor cars...
The cars were pre production F30 Series Diamantes. They were fitted with 6A13 DOHC engines. They were test cars and once finished with were sold to a japanese scrap yard to be scrapped. Kempy happened to be in japan at the time and managed to get the cars taken from the scrap line and dismantled. This was not what was supposed to happen with them. All but one had the chassis numbers removed.
The one chassis number was an F33A Diamante. This model does not exist on caps (Ive checked every version I have) as it was not a production model. production models with 2.5 litre V6 were F31A and were fitted with 6G73 engines
As best as we were able to figure, the engines were 6A13TT engines with the turbos removed and standard manifolds fitted. The alternators and everything that had a part number on it was the same as the EC5A VR4 Galant

and here is one fitted into and fto

http://www.kempys.co.nz/ftovk.htm

[Paul Beazer]

From the picture it certainly looks very like a 6A13TT engine.

[bradc]

thanks Zentac

[Axeboy]

Old thread, but an interesting read.

I always assumed twin cam was DOHC, and it is, in some ways and not in others, but after reading here I now understand.

thanks chaps