hi I own a 1994 ts magna executive 3.0L v6. I am a p plater in South Australia. I'm posting to ask what are the best modifications I can do to put some extra power in my ride. Money and difficulty aside. I've already done an aftermarket exhaust. Any suggestions would be greatly appreciated. Thanks!

1. Cut a larger hole in the pipe feeding air to the engine.
2. Bump up timing a few degrees and use 95+ octane

These along with your exhaust should give 10-15% increase in power.

Replace the breather tubes with auto transmission tube.
Take off the pcv valve and soak it in a jar of acetone.
Blow it out thoroughly and check the spring is going ok.
Look at the airfilter.
Get a small funnel and pour some acetone or/and throttle body cleaner into the tubes leading to the rocker covers and blow them out with high pressure.
With a multimeter and feeler gauge go over all tb bits and set right.
Set the throttle stop screw right. Don't automatically assume anything's right. Flush the radiator and burp it.
All power upgrades will put extra stress throughout the drivetrain, brakes, fuel, air delivery. Tires. et.c.
If you haven't it's quite amazing how some simple things can bring it back to young. I just blew out the tubes again (3'rd time in three days) and finally it cleared, it took a while for the engine to start up after that but I just kept it turning and it took off like it was 10 years younger) so that the wheels just spin on takeoff, throttle response excellent, and solidly accelerates and a very good indicator with these cars : it starts straight away now.

Martini, can you elaborate on 1., please

Other than basic servicing and checking that everything is right, there isn't much you can do to perk up the 12 valve 3L engine. No performance parts or after market turbo or supercharger kits available.

Seeing you are a P plater, it makes enough power for the moment.

Biggest upgrade I did to my TS V6, was to buy a third gen.
Honest, the instant torque of the 3.5L 24 valve will bring a smile to your face.
So save your pennies. In the meantime, learn the basic upkeep of the 3L engine, and stay out of trouble!

PS You haven't mentioned km on the car or service records. Cam belt need doing, driveshafts need rebuilding, that sort of thing? Plenty can/needs doing to a TS at their age to keep it going.

RMartini, can you elaborate on 1., please

The TS V6 intake breathes through a tiny opening behind the driver's side headlight. Some people will say that enlarging this inlet adds power.

If you have the money drop in one of these. Bolt straight in and then just have electronics to do!! Vee

http://www.ebay.com.au/itm/6G72-DOHC-3-0-NA-Motor-SUIT-Mitsubishi-GTO-TR-Magna-TS-Magna-KR-KS-Verada-/201219900973?pt=AU_Car_Parts_Accessories&hash=item2ed9a4062d

If you have the money drop in one of these. Bolt straight in and then just have electronics to do!! Vee

He is P plater and an engine plus electronics transplant may be a bit much, money and skills wise?

The engine as is is very good. (or can be if, (Max points out the need for attention to basic maintenance, Spot on in my experience) When I say very good I don't compare it to different later engines but to comnparable ones of the time. VERY good engine. Take basic maintenance out of the picture it'll seem to nosedive (and possibly set the owner on a path of performance boosting that is costly and unlikely to lead to anything meaningful). Yet, because of its >relative< simplicity, there are few things that cannot be fixed by a home mechanic.
Because it's an electronically controlled ignition engine there are many problems that arise from this interactive system that can be difficult to diagnose. Many mechanics of that era didn't understand fully and used a mix of old techniques and vaguely understood new ones to deal with it as it came into the workshop. Ditto diy's. I suspect a lot of these engines have been scrapped because of the rising cost of repair (at times unnecessary) and not because of anything fundamentally wrong with the engine (tho I'm inclined to think there are a number of 'planned obsolesence' components that lead to bigger problems unless they are fixed (a possible one is a ridiculous valve shaft guide that breaks and can cause fundamental problems that can be interpreted as being a result of other things and the process of fixing something broken without fixing the broken thing distorts the settings of some components and in turn the interaction of the engine, and all peripheral components, and the ECU and vice versa..whereas the real fix before anything else is a very simple one)).
The more the basics are right the easier it is to pinpoint real problems. The more the basics are right the less problems there will be. Basically it is a very good, long lasting, reliable engine with good fuel economy and for its time compared to other standard types of its time, superior. It is not hard to get this performance out of an old engine. Get that right and then think about any boost options. You might find you don't need to and be happy driving a classic vintage.