hay guys n girls I need some advice, I am torn between the 1.4 t-jet and the 1.9 multi-jet sporting, its going to be modified and I know some people have gotten 200bhp out of both so I would like to know what one would be the best and most cost effective in doing so any help is much appreciated.

I really think that depends on the miles you do mate but even that said I would give the 1.9 a miss and go for for the 1.4 tjet imho.

Getting 200bhp from the 1.4 would require a lot of work done it that would be expensive.

The 1.9 can be easily mapped to 200 - however, the stress and the gearbox is massive and can fail soon.

The 1.9 is a noisy old unit as well sending vibrations through the cabin.

I think the decision is based on the amount of miles covered. In the past people have said that if you do a lot of miles go for multijet, and if not as much go t-jet. However I would sway towards t-jet (possibly being biased haha) just because of issues regarding gearbox etc in multijet; but then again I'm sure it's the minority that suffer from gearbox issues. And the t-jet can also have it's little niggles but is possibly slightly more refined. I'm a t-jet owner without any major issues to date, but then again there are also plenty of multijet owners that haven't had any issues. Just be aware that there is strain put on the multijet gearbox after remapping to higher bhp.

I'm a lucky one who has had both engines


the 1.9 is great if your doing allot of millage. Gearbox problems arise when you don't drive it properly. the 6th gear is synthetic and can't take stress, hence the usual failure everybody talks about this is caused by people flooring the pedal in 6th to chase the ST that just over took them etc etc.


I recently got rid of mine as I no longer was doing high millage on a daily basis so swapped to a 1.4 to have some petrol fun

Reuuk said:

I'm a lucky one who has had both engines


the 1.9 is great if your doing allot of millage. Gearbox problems arise when you don't drive it properly. the 6th gear is synthetic and can't take stress, hence the usual failure everybody talks about this is caused by people flooring the pedal in 6th to chase the ST that just over took them etc etc.


I recently got rid of mine as I no longer was doing high millage on a daily basis so swapped to a 1.4 to have some petrol fun

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I remember reading a post you made a while ago about that 6th gear, you will have probarly saved a gearbox issue for me in the future, although the other day i floored the nuts out of 6th to keep up with some 182 nob. Never again

rob4life said:

hay guys n girls I need some advice, I am torn between the 1.4 t-jet and the 1.9 multi-jet sporting, its going to be modified and I know some people have gotten 200bhp out of both so I would like to know what one would be the best and most cost effective in doing so any help is much appreciated.

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To get serious power out of the tjet you need a new turbo as one of the first mods you do ive seen someone on facebook with a tjet running 160bhp on stock turbo though.
Theres also the displacement thing, you have a 1.4, not a well tuned 1.4 16v turbo, just a 1.4, not the best thing to brag about
Of course a 1.9 turbo sounds much better (when you say it, not when your sat idling the car, that sounds like a tractor)


I got a mjet mainly because they're easy to tune, and I suppose i do a decent amount of miles too but I also wanted the low down torque, and just to try a diesel as my own car and not my old driving instructors car
I put a cone filter on, blocked the EGR, took both cats out (2007 to 2008 models have 2 cats, 2008 - xx has one cat and a DPF,) got it remapped after a good service and I'm running a safe 175bhp, could go higher but the turbo will be a bit stressed out, to go further from the mods i mentioned you'll need a new intercooler, new hybrid turbo (about 950 quid) and so forth.

Theres the gearbox issues from the m32 that everyone mentions but tbh I just dont usually touch 6th gear apart from cruising, and if i need to accelerate just put it back into 5th, my 5th gear pulls like 3rd .
Change the gearbox oil every 1-2 years with fuchs sintofluid 75w-80 and it should be fine, theres people that trash their mjets about and have no problems, theres people that drive like grandmas and have problems, the main 2 factors are 6th gear and the box oil, all cars can have box problems, my old 1.2 8v needed a new gearbox, not likes there was really much power running through that is there

Of course there's the fun of having a turbo petrol, when i go out in middlesbrough town every saturday theres this tjet driving about that sounds unreal! FInally managed to get his attention bank holiday and ask him about it hahah, an mjet can still sound good but nothing like a petrol

TLDR, mjet is easy to tune decently and overall faster than tjet, tjet is a nice high revving turbo petrol which are always fun, some people have problems with mjet gearbox but that can be somewhat avoided.

Sorry for the long reply I'm a bit bored

If you are considering the multijets why not the 1.6? I know there are fewer of them but they are a little lighter than the 1.9 and for losing 10 bhp they produce 40 Nm more torque.
Also only £30 a year on tax and will do 60+ mpg if you are gentle .

I would always agree a twin-cam petrol sounds great with a cone filter but you can make a diesel sound a little better too. TBH I may be moving on from my diesel soon purely because I miss roar of induction.

A lot of people seem to be sticking up for the m32 gearbox on this thread; having been hanging around this forum for far too many years I must have read getting on for 100 m32 gearbox failure tales. It's god awful, even if you save the plastic 6th gear the bearings will still fail. Avoid avoid avoid.

T-jets on the other hand seem to be very reliable with the only weakness I'm aware of being the diff on seriously lowered cars. However, you'll struggle to get much above 170/180 bhp without spending serious money.

jameshobiecat said:

A lot of people seem to be sticking up for the m32 gearbox on this thread; having been hanging around this forum for far too many years I must have read getting on for 100 m32 gearbox failure tales. It's god awful, even if you save the plastic 6th gear the bearings will still fail. Avoid avoid avoid.

T-jets on the other hand seem to be very reliable with the only weakness I'm aware of being the diff on seriously lowered cars. However, you'll struggle to get much above 170/180 bhp without spending serious money.

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Diesel cars are for big mileages only and the mjet is ruined by the crap gearbox.

Read any forum for a car its fitted to and they all complain of lots of failures.

It is a terrible gear box. It's also not that great to use neither, notchy with a long throw.

TheMarkofZollo said:

If you are considering the multijets why not the 1.6? I know there are fewer of them but they are a little lighter than the 1.9 and for losing 10 bhp they produce 40 Nm more torque.
Also only £30 a year on tax and will do 60+ mpg if you are gentle .

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My thoughts exactly, is possible go for the 1.6 diesel

JimbbobW1977 said:

It is a terrible gear box. It's also not that great to use neither, notchy with a long throw.

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I disagree completely, I find it a lovely box, very solid and smooth gear changes unless you're trying to get into 1st at 20mph or something.

Any cars gearbox can go, if you drive hard all the time I'm sure any car will have problems.

use good box oil will eliminate a lot of problems

kyle96 said:

I disagree completely, I find it a lovely box, very solid and smooth gear changes unless you're trying to get into 1st at 20mph or something.



Any cars gearbox can go, if you drive hard all the time I'm sure any car will have problems.



use good box oil will eliminate a lot of problems

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I don't know how many cars you have driven, but it is terrible.

I'd go for the T-Jet in all honesty (I'm an MJET Owner). The mjet is just too highly strung. IN the last 18months I've had:-

1.) Gearbox re-conned.
2.) Dual Mass flywheel and clutch kit
3.) Power Steering column and associated electronics

On top of this my Dual mass flywheel is starting to get noisy again! meaning another flywheel and clutch kit. And to make matters worse my Turbo is now doing the siren noise which I'm struggling to find definitively if it's a sign of failure or not! and in addition to that a Driveshaft / CV joint too! .

The 1.9 seems a lot more problematic. The bits attached to it are weak, though the engine seems fine.

Turbo was replaced on mine, gearbox done twice.

The 1.9 seems a lot more problematic. The bits attached to it are weak, though the engine seems fine.

Turbo was replaced on mine, gearbox done twice.

The 1.9 seems a lot more problematic. The bits attached to it are weak, though the engine seems fine.

Turbo was replaced on mine, gearbox done twice.

JimbbobW1977 said:

It is a terrible gear box. It's also not that great to use neither, notchy with a long throw.

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I just modified my M32 gear box selector.. so basically DIY-ed a short shifter.
If you want to know more search the web for M-tech m32 gearbox short shifter.
I removed the original selector, cut out the original ball end( on which the gear cable attaches to) drilled and tapped a new 8mm thread about 2/3 of the original distance.. and now my gear selections are nice, crisp, sharp, shorter and it feels better put together.

Sorry I don't have pictures ..might take a few later today.

ChrisUK said:

I'd go for the T-Jet in all honesty (I'm an MJET Owner). The mjet is just too highly strung. IN the last 18months I've had:-

1.) Gearbox re-conned.
2.) Dual Mass flywheel and clutch kit
3.) Power Steering column and associated electronics

On top of this my Dual mass flywheel is starting to get noisy again! meaning another flywheel and clutch kit. And to make matters worse my Turbo is now doing the siren noise which I'm struggling to find definitively if it's a sign of failure or not! and in addition to that a Driveshaft / CV joint too! .

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Chris, what sort of symptoms do a dodgy dual mass flywheel give?

Cheers

Vibration under acceleration and a "wurring" circular metalic noise which gets faster as engine revs increase