6G72 into Starion - who has done it?

FST4RD · Post by **FST4RD** » Sat Mar 07, 2009 4:49 am

There was a Starion on trademe a while ago, it was white and had cut so many vents in the front it looked like swiss cheese...
But that had a filthy big Chev V8 in it... and i'm sure that if he can get a boat anchor chev V8 into it you can get a Mitsi V6 into one.

I do remember years ago when I had a ''73 Mitsi GTO that there was a guy that put a turbo V6 into one, and they have really small engine bays, sure it was here in Chch to....

Anyone know if the old 70's Mitsi GTO with the DASH motor in it is still floating around? It was Red...

NXTIME · Post by **NXTIME** » Sun Mar 08, 2009 7:29 pm

There wa silver widey in the US that had done a fantastic 6G72TT engine conversion with a lot of other custom work and huge turbos etc. So yes it will fit. I have also personally seen one fitted into a Sigma, so the Starion conversion is possible. But I don't think your budget is big enough as yu will also need a box behind it, not to mention the ecu, fuel system, and driveline mods.

I was going to do this conversion myself into a widey. I had the engine and car ready, but pulled out due to costs, lack of funds plus other interests.

www.18u · Post by **www.18u** » Mon Mar 09, 2009 9:32 am

I was going to do this conversion myself into a widey. I had the engine and car ready, but pulled out due to costs, lack of funds plus other interests.

See what happens when you buy a Datsun rofl

dirtygalant · Post by **dirtygalant** » Mon Mar 09, 2009 10:23 am

thanks quest once again your wise words are very much appreciated.

I did some more research into the 6G72 engines, learning some stuff from people who have actually built them up themselves.

The earlier GTO (3000GT) blocks up to about '93ish are called the gen1 and only have two bolt mains, no forged crank etc, whereas '93ish onwards gen2 motors have four bolt mains and forged crank. Interesting though is that none of the 6Gs have piston oil squirters, even the TT ones, which I thought would have been a vital component on turbo engines. It seems the main thing which lets the 6G engine down is oiling issues, and they subsequently run bearings frequently.

At this stage, I think it might be easier instead of mixing and matching bits to get MIVEC heads to work on a GTO block (needs to be gen2), it would be easier to just use the MIVEC block and heads, and fit lower comp GTO pistons - or even lower the compression of the MIVEC engine using thicker head gaskets. I'm not aiming to run huge amounts of boost and would rather have good all-round performance including off-boost torque.

I have just purchased my first engine - a complete '97 jap spec F36A Diamante 30M MIVEC engine for $360. This engine will probably be the first of a few engines I'll be collecting to have a large parts bin. I'm currently bidding on a complete GTO engine with a run bearing so will see how that pans out.

I already have super-stiff 9kg/cm springs up front which I feel are far too stiff for the existing setup, so perhaps they'll be just right with the heavier V6?

I'm pretty keen to stay twin turbo, mainly for the cost-factor of being able to use the stock turbos (with CC GSR internals). I will definitely have to fabricate up some custom manifolds to bring the turbos forward enough to clear the engine mounts and try keep the intake/intercooler piping length to a minimum.

As for costs, well I was already budgeting to do a full rebuild on my 4G63 with an aftermarket ECU so most of those costs would be the same for the 6G72 anyway. I'm not chasing huge numbers, really I would be happy with the same or a little higher than the standard GTO power figures - I feel the existing fuel system with an external walbro 550hp or similar pump will be able to flow enough fuel to keep up, and if not it's not terribly expensive to go with larger diameter fuel lines.

I see the main concerns surrounding this conversion would be a suitable gearbox to go behind it, but even after one page on this thread we've established there's definitely a few options out there, and bits which require to be modified for RWD layout like the sump, water lines etc.

NXTIME · Post by **NXTIME** » Mon Mar 09, 2009 12:51 pm

A MK Triton 2WD V6 box will bolt up to the 6G72 ;)

dirtygalant · Post by **dirtygalant** » Mon Mar 09, 2009 1:09 pm

yup, as well as the earlier Triton/L200/Challenger V6s and the Pajero V6s although they would be 4WD boxes.

There's also the Dallow bellhousing to mate 6G72 to the W5* series Toyota boxes apparently also.

I think the MK Triton (I'm assuming that's the latest series Triton?) boxes will be expensive given how new they are from wreckers.

dirtygalant · Post by **dirtygalant** » Mon Mar 09, 2009 1:12 pm

Here's a pajero manual box, from a 3.5 DOHC V6, problem is it looks like it has the transfer case built into it - http://www.trademe.co.nz/Trade-Me-Motor ... 448091.htm

NXTIME · Post by **NXTIME** » Mon Mar 09, 2009 1:40 pm

www.18u wrote:
I was going to do this conversion myself into a widey. I had the engine and car ready, but pulled out due to costs, lack of funds plus other interests.
See what happens when you buy a Datsun rofl

yeah...but that 'Datsun' will smoke :pimp anything Starion....:D:D:D

NXTIME · Post by **NXTIME** » Mon Mar 09, 2009 1:42 pm

DG,
I suppose any model 2wd Triton that had the 6G72 engine will bolt up.

I see that you have been on 3si.org. The yanks have played with the 6G's for years. Plenty of good info there, as well as that silver Starion that had the conversion done.

dirtygalant · Post by **dirtygalant** » Mon Mar 09, 2009 1:56 pm

nah I haven't been on 3si.org? maybe I should though.

dirtygalant · Post by **dirtygalant** » Mon Mar 09, 2009 2:59 pm

whoop whoop just won the auction for the GTO engine for $425 - two engines for under $800 - can't really go wrong with that! Just need to find a buggered Pajero/Challenger/Triton/L200/L400 V6 now for the RWD bits.

JD_Stazza_Brendan · Post by **JD_Stazza_Brendan** » Mon Mar 09, 2009 4:56 pm

Could make some $$$ back selling off the parts from the 2-3 motors you dont need.

dirtygalant · Post by **dirtygalant** » Mon Mar 09, 2009 6:29 pm

yeah here's hoping. Have a '92 Galant I picked up for $300 that I fixed up that I'm going to sell shortly, should help with the funds too.

redzone · Post by **redzone** » Mon Mar 09, 2009 6:33 pm

DG, the MK triton is mid 90's....

dirtygalant · Post by **dirtygalant** » Mon Mar 09, 2009 6:45 pm

cool thanks - we must not follow the same naming scheme here - we did get the mid 90s V6 Triton/L200s, but the V6 manual 2WD wasn't common, was either 2.4 petrol manual or 2.5TD diesel manual.

Once the engines arrive I'll go hunting in wreckers yards and see what they have to offer.

Austarion

6G72 into Starion - who has done it?

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