Any one done v8 conversion nh?

[grumpy221]

had anyone done a v8 conversion on a 91 or better .....I got a good price on a small bloke chev!

[DougH]

had anyone done a v8 conversion on a 91 or better .....I got a good price on a small bloke chev!

There was a guy on the 4x4 wire page that put a 350 in if I am remebering correctly. His name was Helix.

For some reason he lost 4wd after the conversion.

Dont do it unless it comes fuel injected... carbs suck. What good is all that power if it sputters and stalls on hills.

[Ian Sharpe]

there has been quite a bit of discussion about this especially on the US forum.

some say that there isnt enough room, some say there is (just). Either way it would be an extremely tight fit.

If you werent doing it yourself then I believe that it would cost a bomb to get it done professionally. & then you,ve got rego & insurance issues.

Even if you could fit the 350 in , how would you adapt everything like the gearbox & all the electronics. It would be bugger of a job I reckon. & cost a fortune to get one off adaptors made up.

But there are a lot of pajeros coming up to the time when motors are going to need work or replacement so maybe more demand will trigger someone like MArks etc into making some sort of kits. I would rather spen the $$$ on a v8 replacemnt than having my 3.5lDOHC rebuilt if that option was available.

Keep us posted on what you find out

cheers

[Noisey]

Off the top of my head I think I have seen a 4WD Monthly or some similar mag with a conversion done to an older style paj.

Commodore motor??

Contact was Mark's if I remember correctly.

Don't quote me on this - I remeber the pics of the Paj doing burnouts.

[grumpy221]

Don't quote me on this - I remeber the pics of the Paj doing burnouts.

Ohhhhh.......thats what I need to hear

[Grantw]

Hmm good topic... I went down this trail a few years back on my old shorty... (4 shorties ago).. It was a 2.6L 4cyl. It was time for a power upgrade and was extremely close to doing a V8 conversion using the rover 3500cc V8. It was probably the smallest and lightest to use but costs started to blow out. Not to mention it was all trial and error. Ended up doing a 3.8L V6 holden conversion instead and was extremely happy with the result.

Their is a dude, i think in Vic, that runs a 308 in his 84 shorty. I definately agree that it would have to be an efi V8 otherwise source a supercharged holden 3.8 and be done with it! At least the conversion parts are available.

[Bitsamissin]

Yeah Marks 4wd Adaptors do the Crudodore V6 conversion into a Gen 1 Paj (they have the adaptor plates for the V6 to KM145 5sp or the GM auto to the Mitsi t/case).
There is no adaptor kit for the Holden V6 to the V5MT1 (3.0 V6 5sp) but I think the GM auto adaptor to Mitsu t/case will work even for the 3.0 V6 version (from memory the pattern is the same). Nobody I know of has done this conversion into the Gen 2.
I have the magazine with the article of the Gen 1 Paj with the GM V6 certainly looks impressive.

[Noisey]

So my memory is not as screwed up as the little voices tell me.

[darryl]

ill be starting my conversion in the next couple of weeks ill be using 253, auto and a remote transfer. ill keep you posted how it goes

[Ian Sharpe]

Daryl,

what pajero have you got ?????

[Grantw]

What about the issue of getting the engine complied? Age of engine vs age of vehicle? I just had issues with my conversion in the girlfriends proton but was able to get away with it because i was using the same engine (well, codes were virtually identical. 4G93P to a 4G93T) We had to look at it as a "replacement engine" rather than an "engine conversion".

You may want to make sure you can get it approved before you get too far!

[Ian Sharpe]

Good advice,

you may find you are going to have alot of hassles with rego & insurance.

anyway I know that in the ACT you must use a motor of the same year or later in order to get around emission control issues. Probably the same in other states too.

BTW ACT say you can use an older motor but as long as it runs only on lpg.

Interestingly the RTA NSW web page has some guidelines for replacement engines saying that the replacement engine must NOT be greater displacement than 15% more than the biggest motor offered by the manufacturer for that model BUT in bold it then says this doesnt apply to 4wd but then doesnt give any guidelines for 4wd. I know that for eg Toys & patrols can run big v8s & Hiluxes can run v8s so it must be allowable.


A thought of mine was to get hold of a carburetted Holden V8 & run it on gas & that way I would avoid all the EFI wiring hassles but would be of course going backwards technology wise.

But when you use lpg you are bypassing the EFI anyway since they use a gas carburettor.

cheers

[TONKA PAJ]

Just go twin turbo 3.0L
Rebuild the block, lower comp with a decomp plate, and plumb in 2 t3's on custom exaust manifolds, simple.....

[TONKA PAJ]

Just go twin turbo 3.0L
Rebuild the block, lower comp with a decomp plate, and plumb in 2 t3's on custom exaust manifolds, simple.....

[DougH]

Just go twin turbo 3.0L
Rebuild the block, lower comp with a decomp plate, and plumb in 2 t3's on custom exaust manifolds, simple.....

That would do you a huge heaping of squat off road.

v8, with a good auto, and a transfer case that has real gears. With a GM drive train the combinations are endless. You put put a v8 in, auto tranny, a klune v or some other under drive, and then a tcase.

You would have a bunch of good crawl ratios to work with, and more than enough power.

[bretwalda]

Here is a link to the Gen2 V8 conversion Doug mentioned:

http://photos.yahoo.com/helixamuller

[turps]

Just go twin turbo 3.0L
Rebuild the block, lower comp with a decomp plate, and plumb in 2 t3's on custom exaust manifolds, simple.....

That would do you a huge heaping of squat off road.

v8, with a good auto, and a transfer case that has real gears. With a GM drive train the combinations are endless. You put put a v8 in, auto tranny, a klune v or some other under drive, and then a tcase.

You would have a bunch of good crawl ratios to work with, and more than enough power.

If you are going to go to this extent, buy are more appropriate car to start with.
I think the turbo would work well with the lower gears and an auto. As then there is no lag problems so power is always on tap.
What other mistu engines are there that would fit. Do they make a V8, I like the idea of keeping it all the same make.

[Noisey]

Hey - I know we are all dealing with money pits here but how much would something like this cost. (I know, I know - how long is a piece of string)

Give me some kind of ballpark figure.

Only asking because I just spent a fair bit on the motor rebuild (with tweeking ) plus labor and all the other crap that needed replacing.

Seems like a lot a work and fark'n round + $$$$

Thought about a conversion but being without my daily driver for 7 weeks was bad enough.

[DougH]

If I was doing the conversion I am guessing it would cost upwards of at least three thousand dollars... US. Atleast.

Junkyard engine 300-400 depending on year, condition and parts.
Engine rebuild costs.
Transmission to mate up with the engine
Tcase to mate with transmision
2 new drive shafts.
New cooling system.
Misc Lines
Misc Fab (shifters, motor mounts, drive train cross members and mounts).

If I was doing it I would probably want to put low gears in the new tcase too.

Heck if I did it the way I would want to, it would probably cost a shiet load of cash.

[DougH]

If you are going to go to this extent, buy are more appropriate car to start with.
I think the turbo would work well with the lower gears and an auto. As then there is no lag problems so power is always on tap.
What other mistu engines are there that would fit. Do they make a V8, I like the idea of keeping it all the same make.

There is not much difference between swaping in a turbo engine as you describe, and swaping in the setup I describe.

Whats the difference, if you can find one let me know.

Either way it isnt stock. Following that logic we might as well all drive stock mitsubishi, OR drive some totally other make.

[Grantw]

I would budget 7 grand for a quality efi conversion.. Notice that word... QUALITY...

[grumpy221]

this is all interesting especially this small block is 307 bored & stroked,balanced,blueprinted,cammed(would have to change this for better bottom end power,800cfm holley, duel point dizzy....etc was built for track but he trashed the car. Looks possible but what else would I need (adapters..etc) and in QLD????????

[grumpy221]

this is all interesting especially this small block is 307 bored & stroked,balanced,blueprinted,cammed(would have to change this for better bottom end power,800cfm holley, duel point dizzy....etc was built for track but he trashed the car. Looks possible but what else would I need (adapters..etc) and in QLD????????

[Bitsamissin]

I've thought long and hard about this one.
Honestly if your engine is trashed and it has to come out for either a rebuild or a swap I reckon the best option is to rebuild it with a supercharger.
Not the CAPA one but one from a high performance Jap car.
A mate has one from a Corolla twin cam which came in a supercharged version (I think it might have been an early MR2) he got it for bugger all and it is quite compact. Maybe a Crudodore 3.8 V6 one ??
I don't think you will get much change out of $10K for a 3.8 V6 conversion done correctly and remember if something goes wrong with any of the custom work it can get complicated.
I like the 3.0 V6 as it's a good honest motor but is not blessed with heaps of torque. It's a free spinner and is reasonably easy to work on.
The 3.5 V6's are not free spinners and are bitches to work on plus being more complicated.
I reckon try to keep it as simple and stock as possible.
I've also got my doubts about how much torque the 3.0 V6 drive train can handle (the 3.5 V6 is fine).
As Ian pointed out a lot of Pajero's are at the age now that will require rebuilds.
You can get totally rebuilt and upgraded 3.0 V6 donks from RPW for about $3K then find a Guppydore supercharger from a wrecker and voila.........
The 3.5 V6 guys are a different story I would not want to pay to have one of those suckers rebuilt......................

[grumpy221]

my engine is still good noly done 130ks just the idea of the v8 is ...well....can u really put a holden supercharger on top a 3.0lt?what would be the power gain?

[Grantw]

I am pretty sure that this is the supercharger that capa use... Eaton M90. Well it was last time i checked.... Second hand and fairly cheap...

http://cgi.ebay.com.au/ws/eBayISAPI.dll ... eName=WDVW

Power gains at 7psi would give you about 200kw.

Certainly give the 3L running gear a floggin.

[grumpy221]

Power gains at 7psi would give you about 200kw.

Certainly give the 3L running gear a floggin.

u sayin the gear wouldn't handle it?

[Bitsamissin]

Well you will bust rear axles I've broken 2 with 33"s and a rear locker.
The 3.5 V6 t/case is much bigger so are the rear axles than the 3.0 V6 versions.
However the Ralliart highly tuned 3.0 V6 Pajero's ran fairly stock running gear and seemed pretty reliable.
But with 200Kw, 35"s, twin lockers, 2.85 t/case gears trying to get over a high steep rocky ledge and you squeeze the right foot hmmmm.................

[Grantw]

Blown as standard in street trim should be allright but I must agree with frank.... That right foot would be tempting on a long steep slippery hill climb!!

[grumpy221]

mmmm interesting wasnt thinking that way but it would be easier than fitting the v8....would love 200kw in the paj ......the v8 would promise more than that though.......450hp on the dyno.....yum...would need to replace everything!!!!!!!