My setup I've been thinking of building(welcome any input), and to run is.....

My Current TH sedan(love the shape etc) with

-380 6g75 block, pistons, crank etc
-GTO/3000gt MIVEC Heads (o'sized port/polish and valves to suit etc)
-aftermarket computer and tuning.
-CAI and extractors

Besides a 5spd Magna box and HD clutch.


From what I can gather, worst case, appart from tuning, fuel pump upgrade etc would be getting driveshafts and CVs that wouldnt just die and a decent brake upgrade.
This would give off say a 200kw @ flywheel output? Or more?

Luke

doesnt the american 380 have MIVEC?

My setup I've been thinking of building(welcome any input), and to run is.....

My Current TH sedan(love the shape etc) with

-380 6g75 block, pistons, crank etc
-GTO/3000gt MIVEC Heads (o'sized port/polish and valves to suit etc)
-aftermarket computer and tuning.
-CAI and extractors

Besides a 5spd Magna box and HD clutch.


From what I can gather, worst case, appart from tuning, fuel pump upgrade etc would be getting driveshafts and CVs that wouldnt just die and a decent brake upgrade.
This would give off say a 200kw @ flywheel output? Or more?

Luke

GTO/3000GT Never came in MIVEC? I'm sure of it anyway, i think those MIVEC heads were off something else.

Either way, DOHC heads will work on a 3.5L block, and nothing short of 200kw is very attainable. as this is what my 3.5L makes standard. Extractors i wouldnt worry about as its $1000 for a 4kw gain..

With the DOHC thing too, you will also need a 3.5L DOHC Pajero/montero timing belt (they dont make heavy duty ones AFAIK) and these run coil pack, So you will need a 3000GT coil pack setup and PTU, All in all, a very, well, WAS (Thanks crap aussie $) cheap way was to get this stuff from the US where the 3000GT over there is as common as a VS commodore..so parts are a dime a dozen

Heh, all i can say is goodluck getting Mivec heads, only seen one set in America to suit the 72/74 block and went for 4500 US. Also ScreamingTE was doing this and i think he said something about some of the coolant passages dont line up as well, and also need a custom Inlet made up (both top and bottom) and also fuel rails to suit and injectors. And the DOHC i dont think will clear the bonnet either as they are quite a bit larger then the standard heads.

is it really worth it though?

the na route is a expensive route to take... especially when you have the likes of raptop offering such a cheap supercharger kit ready to go for probably the same price all this would cost you.. and instead of getting 200kw at the flywheel you may have something around 190kw at the wheels....

what sounds better to you?

is it really worth it though?

the na route is a expensive route to take... especially when you have the likes of raptop offering such a cheap supercharger kit ready to go for probably the same price all this would cost you.. and instead of getting 200kw at the flywheel you may have something around 190kw at the wheels....

what sounds better to you?


As above,

Also you could just do it to the standard heads, Jasonsvrx is making 236kw atw in his last NA build and is predicting more with his new cam etc. Been said 1000 times so 1 more cant hurt

10.1 Pajero Pistons
Stage 2 eqiv cam
Manual conversion
Nitred Valve springs
Minor Port and polish and deshroud valves
ARP Big end bolts and head bolts
decent Ecu to bring it all together

7k's worth of parts will easily get 160-190kw atw (depending on what cam you use)

MIVEC heads for 6G72 are from the Diamante 30M and for 6G74 from Pajero Evolution. Both pretty rare. There was a 6G72 MIVEC at a wreckers in Adelaide a while back for $2,500 from memory. I'd contacted other places about it out of interest, most know nothing about it.

In regards to MIVEC its not really worth the effort. Still a mild cam when advanced yet to set it up properly is a pain in the ****.
It just be easier to get some head work + custom cams built.

The actual 6G72 MIVEC engine runs a variable intake tract too - which only high-end ECUs can control.

As above,

Also you could just do it to the standard heads, Jasonsvrx is making 236kw atw in his last NA build and is predicting more with his new cam etc. Been said 1000 times so 1 more cant hurt

10.1 Pajero Pistons
Stage 2 eqiv cam
Nitred Valve springs
Minor Port and polish and deshroud valves
ARP Big end bolts and head bolts
decent Ecu to bring it all together

7k's worth of parts will easily get 160-190kw atw (depending on what cam you use)

how would this go if you were to add the streetfighter manifold plus a raptor supercharger kit?
might have to start saving lol

Too much for FWD.

how would this go if you were to add the streetfighter manifold plus a raptor supercharger kit?
might have to start saving lol


with the super charger you wouldn't want 10.1 pistons you want lower compression

with the super charger you wouldn't want 10.1 pistons you want lower compression

hasnt magna00 got much larger pistons and cams and still going to run the raptor.

hasnt magna00 got much larger pistons and cams and still going to run the raptor.


Nope Magna00 has a stock engine with a sprintex bolted on no internal work done at all but he does have plans to do some.

sorry i ment Jasons VRX

sorry i ment Jasons VRX


He currently isn't running a charger but he has been inquiring about them in the raptor sponsor section he is also running 11.1 compression.Would be interesting to see what power he would make if he did go charged.

Yeah you can run FI with higher comp pistons, you just cant go with alot of boost. Reasoning behind running lower compression is so you can run more boost fear of it mashing pistons.

Also i wouldnt even think for a second of running boost on the Pajero pistons, they cant handle it period. They are really good for NA but not FI.

And yeah i have standard internals in the TH atm but plans are brewing in the background.:badgrin: the raptor wont be anywhere near enough grunt for my planning power output which is a bummer as it would of been such a simpler task.

Heh, all i can say is goodluck getting Mivec heads, only seen one set in America to suit the 72/74 block and went for 4500 US. Also ScreamingTE was doing this and i think he said something about some of the coolant passages dont line up as well, and also need a custom Inlet made up (both top and bottom) and also fuel rails to suit and injectors. And the DOHC i dont think will clear the bonnet either as they are quite a bit larger then the standard heads.

Coolant passages? head gasket is the exact same though?
You will need a pajero Lower intake manifold (easy)
3rd gen Upper manifold (i.e. streetfighter) SHOULD bolt up no worries. I've had type40 look @ my lower intake manifold and reckons the 3rd gen pattern is dead on the same
fuel rails and injectors can be had off a 3000GT (cheap cheap)

my DOHC Sits over 1.5" LOWER then my SOHC, I dont think you will have ANY clearance issues as the 3rd gen SOHC's are the same sort of design with the intake manifold sitting directly over the top of the rear bank,..
again, If you could make this work, which I have no doubt someone can/will you will have one of the best base engines to modify from EVER.

FI? TT guys in the US, well its not uncommon for the AWD's to be pumping out 800AWHP and this is with STOCK HEADS, CAMS, AND INJECTORS

Standard 9b turbo kits, i.e. with 9b turbos, cast manifolds, water and oil lines can be had for about $500US if you look hard enough over there, of course now thats like $800AU...

So TT'ing is cheap..

The 3.5L DOHC, All you need is bits off a pajero DOHC 3.5L and thats it, but your 3rd gen intake manifold should bolt up.
Btw the stock cranks are good for 1000AWHP proven :)

its was the bolt holes for the coolant manifold on the g/b end of the heads. If the you look at the bolts on the sohc heads, the ones on the dohc heads are rotated 90 degrees. You could cut the flanges off of a standard one, rotate them 90deg and weld them back on.

Then there was also the fact that the lower manifold is different, the timing belt issue, i didnt have cam covers, it needs coil packs, an aftermarke ecu, and vernier cam gears to really get the full benefit. The exhaust ports are also oval instead of round so you will need a set of custom headers for it. I was going to get a set of hurricanes and get a local exhaust shopo to weld a nset of flanges on that i had made. Mine came from a pajero and they drop straight onto a 3rd gen block.

I see no reason why it wouldnt achieve over 200kw if done properly. I estimated it would cost me 3-4k thats with doing the labour myself. Dont forget brakes, clutch, etc.

Speak to grelise, he bought the heads i had off me, he could supply some pics for you.

i have some of these flanges already lasercut.... for sale in this lnk....

http://www.aussiemagna.com/forums/showthread.php?t=53335

they are the double D design/port arangement

look at the pic of the flange gasket. these are cut exactly the same.
will post a better pic soon

no point doing mivec, if you put bigger cams in, mivec just gives you 2 different cams essentially, a big cam will just give you more power than mivec, you wont have as much power down low, but if you got a manual, it wont matter as you can just shift down.

its was the bolt holes for the coolant manifold on the g/b end of the heads. If the you look at the bolts on the sohc heads, the ones on the dohc heads are rotated 90 degrees. You could cut the flanges off of a standard one, rotate them 90deg and weld them back on.

Then there was also the fact that the lower manifold is different, the timing belt issue, i didnt have cam covers, it needs coil packs, an aftermarke ecu, and vernier cam gears to really get the full benefit. The exhaust ports are also oval instead of round so you will need a set of custom headers for it. I was going to get a set of hurricanes and get a local exhaust shopo to weld a nset of flanges on that i had made. Mine came from a pajero and they drop straight onto a 3rd gen block.

I see no reason why it wouldnt achieve over 200kw if done properly. I estimated it would cost me 3-4k thats with doing the labour myself. Dont forget brakes, clutch, etc.

Speak to grelise, he bought the heads i had off me, he could supply some pics for you.

Lower manifold - try and get a Pajero one
Timing belt, again DOHC Pajero or Montero from the states
Cam covers, I'm using 3L DOHC ones and there a 95% fit
Coil pack - aftermarket from US $150
and exhaust manifolds again use standard DOHC 3000GT ones.

grelise already has the cam gears aswell (my standard 3.5L DOHC ones)

If you need a lower paj manifold i have one. You will need to fill in the small holes on the lower runners used to have lpg injection going through this one. No biggie... Its of an NM 2001 model.

Regards