[rolykiss]

How can I improove the hp and torque on my Pajero V6 3.0 12v?
I am using the car mainly for off road driving and in winter, when it's full of snow and ice.
I was thinking about removing the catalytic converter and adding a less restrictive air filter, a K&N for example.
Are there any other methodes to gain extra power for this engine?
Maybe I should start by removing that 1000000 ton bonnet.
Any advice woul be of great help.

[4ePikanini]

a free flow exhaust will release some ponies but the low down torque of that engine is fantastic. It pulls from near stall with ease from just a small dab of the throttle.

The engine is bullet proof. Don't tinker too much!

[rolykiss]

That is exactly what I need.
Low end torque!
What do you mean by "free low exaust"?
Should I remove all the silecers + cat?
I don't want to get hung up on rocks and stuff and than rip the exaust off the car.

[tsnyders]

Just returned from a 6000km trip through Kalahari and Namibia - the car pulled well BUT also noted that the power on the open road seems to be down - a large anount of gear changing on hills (down to 4th and 3rd regularly) and not able to cruise comfortably at 120km/h - speed loss.

I think it really became evident when a large (25-seater) minibus + trailer overtook me on a hill and accelerated away - showed me how little power there actually is with this motor. I know it is heavy but surely it should pull better than this? FYI - we had 4 adults, minimal roof luggage and minimal load internally! Already got a freeflow exhaust and UniChip installed.

At this point, I am seriously considering other options:
1. change to 3500 LWB
2. add low-pressure turbo

but don't really want to as grown to appreciate this vehicle off-road.

Anyone else out there that has noticed a lack of power on the 3l 12-valve and what has been the solution (if any)?

[4ePikanini]

That engine is over 20 years old in design. When it first came out it was a monster.

The 3500 is a more advanced engine with more power. The 6g72 is however a reliable and uncomplicated gem with useful torque offroad.

I did however find my 3.0 v6 pretty sporty on the open road in 4th gear between 5000rpm and 5500rpm - I don't like redlining an engine.

Any serious gains in performance with a low boost turbo to do it properly will cost more than a 3.5 import.


Make peace with it's performance. It was quick for it's design time. If you want more speed, shell out a lot of money or get a smaller car.

[tsnyders]

I did however find my 3.0 v6 pretty sporty on the open road in 4th gear between 5000rpm and 5500rpm - I don't like redlining an engine.

Thanks - so running the motor for short periods at 5000 - 5500 rpm in 3rd or 4th is OK? Was running between 3500 and 4000 rpm through the gears as, given the age of the motor, didn't fancy overdoing it.

[4ePikanini]

Mine was a fresh rebuilt and I cut no corners so I had a lot of confidence in my engine.

A good running engine should be happy at redline 24/7

[HBannink]

The 6g72 is a robust engine and short of strapping on a turbo you are not going to improve the output significantly. As said a free flow and a chip are about your best bolt on upgrades and a turbo will come with reliability issues you don't need out in the bush

Upping the compression and playing with the cams can release a few more horses but the cost of these modifications are quite high

[Cobvs]

Upping the compression - how do you manage that? Cams = to cut camshaft stage 1 ??

[4ePikanini]

Upping the compression - how do you manage that? Cams = to cut camshaft stage 1 ??

Different pistons and/or crankshaft.