my tl is ment to have 155kw

what does the rallyart have and the vrx and whats different between the models?

VRX has a different rear muffler which gives it 163kw. The ralliart has different muffler and more aggressive cams as far as I know, likely to be a lot more and is 180kw.

ive looked in the workshop manual and the cams appear to be the same

The Ralliart cams have 10% more lift, but basically the same timing. My workshop manual also seems to give them the same specs - a mystery. The Ralliart also has higher compression pistons and slightly modified heads, and an ECU tuned for it all.

i might ring mmal on monday and ask them why manual is wrong

the only differance ive found between the 2 is the exhaust and maby computer

Definately cams mate, people buy the ralliart heads for a reason.

hmmm normaly these manuals are right im still digging

the tl specs are the same as rallyart
the only thing ive found in manual is exhaust

If I had a dollar for every time a post was started to discuss the difference between a standard 3.5L, the vr-x and/or the ralliart, I'd have a turbo by now.. heck, I even answered this question earlier today in another thread (http://www.aussiemagna.com/forums/showthread.php?t=32908)

did a search didnt find anything

i asked because the manual is wrong by the look of it

did a search didnt find anything

doesn't mean it hasn't been covered before.. that just means the search feature is crap lol

in broad terms..

TJ Series 1 Exec/Advance/etc- 150kW
TJ Series 2 Exec/Advance/etc - 155kW (revised cam profile, ecu tune)
TJ VR-X/Sports - 163kW (TJ2 cam profile, straight through rear muffler)
TJ Ralliart - 180kW (cams w/ at least more lift, mild head work (mostly cleaning up manufacturing 'defects' - see heathyoung's thread on the topic), headers/extractors, straight through muffler, 9.4:1 pistons, ecu to suit)

TJ Series 1 Exec/Advance/etc- 150kW

)
:badgrin: Wrong, all (2001 up)TJ 3,5 L are 155 kW ( VRX/sport 163). From Series '2 ' Mitsu. start fitting 'tippy' as standard and electronic odometer, rest is exactly the same.

did a search didnt find anything

i asked because the manual is wrong by the look of it


i guess the millions they spent writing it does'nt count for much then

:badgrin: Wrong, all (2001 up)TJ 3,5 L are 155 kW ( VRX/sport 163). From Series '2 ' Mitsu. start fitting 'tippy' as standard and electronic odometer, rest is exactly the same.

not according to redbook (which I'll admit isn't saying much)

Guys my TJ is December 2000 what series is that? And how much kw? I got the book but in there info about TH?!

Cam specs for Opening/Closing are same other than lift which is 10 thou greater on Ralliart.
The heads have been cleaned up, however they are much better than Std. with one major performance factor being the RAlliarts 9.4:1 compression Vs 9.0:1 for TJ I & II (not sure TL), so this will certainly help get things moving better.

I have the TJ II Sports and its performance is quite good it also has same as VRX with 163KW spec, and loves to rev quite well as is, extractors etc would make it very sweet indeed!.
regards'

not according to redbook (which I'll admit isn't saying much)

I also remember reading reviews on the first TJ's and they where 150kW.

TJ Series 1 had base figures of 150kw and 300nm.

TJ series 1.5 (from Sept 2001) and 2 (from August 2002) had base figures of 155kw and 317nm.

Go to www.drive.com.au and click 'value of your car'.

Do a search for any car and you will get pretty much all the stats your looking for. Take the TJ as an example. It will tell you when each series was released and discontiued as well as the power, torque, kerb weight, power to weight, new car price, standard features, options, engine the list goes on.

TJ Series 1 had base figures of 150kw and 300nm.

TJ series 1.5 (from Sept 2001) and 2 (from August 2002) had base figures of 155kw and 317nm.

Go to www.drive.com.au and click 'value of your car'.

Do a search for any car and you will get pretty much all the stats your looking for. Take the TJ as an example. It will tell you when each series was released and discontiued as well as the power, torque, kerb weight, power to weight, new car price, standard features, options, engine the list goes on.

which brings in my question.....how does a TJ series one have 150kw std and 163kw in the sports, and the TJ series two have 155kw standard and the sports/vrx still has 163kw??????

thats cos there was no 150kw magna

just 147 and 155 and vrx is 163 and railliart is 180

thats cos there was no 150kw magna

just 147 and 155 and vrx is 163 and railliart is 180

I have a Series 1 TJ and she has 150kw and 300nm. It's confirmed in my owners manual and on that drive website I put a link to.

I'm unsure why they didn't upgrade the power in the Sports/VRX from Series 1 to 2. Perhaps they thought it was already adequate, cost etc?

thats cos there was no 150kw magna

just 147 and 155 and vrx is 163 and railliart is 180

Wrong. There was a 150kw Magna. The TJ series 1. Billy Mason has got it spot on.

http://www.mynrma.com.au/magna-tj_mitmagtj_specs.asp

when they measure the kw's at the fly do they have the whole exhaust system on??

Its true i did reserch on the net!




Wrong. There was a 150kw Magna. The TJ series 1. Billy Mason has got it spot on.

http://www.mynrma.com.au/magna-tj_mitmagtj_specs.asp

the 150kw magna was probaly a 3.0ltr engine as they did do a 3.0ltr in a tj

the 150kw magna was probaly a 3.0ltr engine as they did do a 3.0ltr in a tj

The 3.0 has always stayed at 140kW and 255Nm. It was the 3.5 that was 150kW in the TJ.

okies, does anyone know what the kw's are for the 2.5 then?

okies, does anyone know what the kw's are for the 2.5 then?
128kW

TJ Ralliart was the greatest missed opportunity in MMAL's history.
Even with its nasty FWD traits.. twas the best Magna made. $ were an issue. Nearly $50K to get it on road. Low $40K got you the bogan mobile of the time, the XR6, which JoeAverageAussie just loved.

Special Ralliart dealers intimidated folks. The boot wing threw a few people as well.

AWD would have capped it off.

Wish I had one. Manual. :D

Not evey motor writer trashed it. That autospeed writer needs his nads taken off. :)

http://www.theaustralian.news.com.au/common/story_page/0,5744,4813560%255E13232,00.html

I agree - AWD and ralliart motor - very nice. Currently building one :)

Why did MMAL never do it?

Cheers
Heath Young

I agree - AWD and ralliart motor - very nice. Currently building one :)

Why did MMAL never do it?

Cheers
Heath Young

Dollars.

I agree - AWD and ralliart motor - very nice. Currently building one :)

Why did MMAL never do it?

Cheers
Heath Young
Any plans for a sprintex ralliart AWD? :D Or keeping it N/A?

I agree - AWD and ralliart motor - very nice. Currently building one :)

Why did MMAL never do it?

Cheers
Heath Young

Make sure you get this right... :)


Feb 2002

….... basic Magna 6G74 engine as designed and developed by Mitsubishi Motors Corporation (MMC) is so good, with its racing-style compact 4-valve combustion chambers, central spark plugs and well-shaped ports, that the MMAL engineers knew it must be capable of responding to tuning for higher output. …
A team, comprising people from Engineering Design, Development Engineering and the Lonsdale Engine Manufacturing Plant, came up with several alternative designs .. final iteration has an increased compression ratio (9.4:1 compared with 9.0:1) which was achieved by a reduced piston bowl depth while still maintaining top land height. …

An anodised piston crown and top compression ring land were specified to reduce wear and blow-by, while maintaining top end power.

The cylinder head combustion chamber was modified to reduce valve shrouding and improve breathing at small valve openings, thereby making full benefit of the 4-valves per cylinder configuration.

A high lift camshaft profile with 10% additional lift for improved top end performance was fitted. ..Special high lift valve springs, which have a unique cross-// made from a special nitrided material for improved fatigue strength, are fitted.

The VR-X exhaust system, which was used as the base, was revised with the addition of a large bomb-type muffler to the centre pipe to improve the mid-high rpm exhaust note. .. specially fabricated stainless steel header pipes were added to increase top end power.

The engine ECU has also been remapped to:

increase idle speed in "Drive" from 625 to 680 rpm to maintain idle quality,
increase the speed limiter to complement widely available V-rated tyres (the car is fitted with 270 kph tyres),
revise the spark map for optimal power with the increased compression ratio, and
raise the air flow sensor map limit to accommodate the improved volumetric efficiency at high rpm,
keep emissions within required limits.

The result is a very tractable engine at low revs, but which continues to pull past 6000 rpm without any effort. It is the type of engine that be run at low speed without any rough running and maintain good fuel economy. But if spirited driving is required the engine comes alive from 4000 rpm, giving the impression and performance of a much larger engine.
..
Peak power is 180kW at 5500 rpm and maximum torque is 333Nm at 4000 rpm.

No, keeping it NA methinks... Not a true Ralliart engine, only the head, extractors and ECU, the bottom end of the engine will be kept standard - ie. Non-anodised + forged pistons, compression increase will come from an 8-10 thou deck of the heads to get 9.4:1.

As I have said before, the head isn't that far worked - a 3 angle valve job and furthur unshrouding would improve matters - the unshroud job is done with a cutter, and has left sharp edges in the combustion chamber, possible points for predetonation to occur. These could be smoothed over with little reduction in compression ratio.

3 angle valve job reduces the longevity of the valve seats though - may be why MMAL didn't go this far... But they could have removed more material from the ports - the goal of 180Kw was probably achieved with keeping the driveability of the car (no loss in low RPM torque that a hotter cam and more headwork would have netted)...

Cheers
Heath Young