2.5 N/A into Series 3 109 diesel

Hi all,

The old 2.25 diesel in my series 3 isnt feeling too healthy, i was thinking of putting a 2.5 N/A in. From about of reading on here and over the internet it seems to be a good conversion and cheaper to do that a 200tdi conversion?

What are peoples thoughts on it/how hard is it to do?


thanks
mat

Have you suffered a severe head injury?

storm99 said:

Have you suffered a severe head injury?

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Lol the 2.5 is useless. If you look at the wrong way it will blow up. A 200td or a 200tdi is a great conversion.

storm99 said:

Have you suffered a severe head injury?

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Not recently

The conversion to a n/a is easy and cheap, you can get a good n/a for £100 or less...but...for the extra money i'd go for the 200tdi. It'll be better on fuel than the n/a by at least 10% so should pay for itself within a year.

The n/a was/is a great engine..but its a plodder...you wont notice any difference to your 2.25 to be honest. A looked after 200tdi will have 50bhp more, which you will notice...especially if towing or even just going up a hill. You should easily cruise at 60-65on long journeys and still have a bit more if needed.

As above if ya gonna put a new engine in go for the 200 tdi you won't be disappointed, if any thing your have a big cheeky grin when driving around, I wouldn't waste the time or money putting a 2.5na in, but hey it's your motor and your monies so you do what ya want

I am at the moment installing a 2.5na in to my s3 swb. I thought about the 200tdi route but given the safety features on my landy going above 50mph scares the **** out of me. If you do not want to go fast then the 2.5na would do ok. You could go down the 200tdi route but it is more hassle and the engine, according to other people is much louder and jumps all over the place. Like everything is down to your own choice and what you want your landy for. Good luck with what ever you decide to do.

a very good 2.5td is best/easiest but you try find a good one ,200tdi is most practicable now (availability and cost) there fine as long as you keep truck right ,just put one in lightweight is more noisier but so are all 2.5s but isnt hard to make steering brakes right

I have been running the 2.5na for 3 years now and am very happy with it. I dont tow and its a shortie truck cab, but it goes really well and when it doesnt I can throw it away. Only cost £60.

200s are not the easyiest engine to fit into a 109 due to the maining chassis leg being higher and hitting the turbo few ways of doing modifying the turbo then making your own manifold, or putting a 300tdi turbo on it. ive got a 200 in mine and i love it there not that hard to fit but more difficult to make it look right. and not like a bodge.the amount of dredfull, thrown in 200tdi's you see is shocking thogh dont be one of them

109party said:

200s are not the easyiest engine to fit into a 109 due to the maining chassis leg being higher and hitting the turbo

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can i say piffle to this it's really simple to fit a 200tdi complete into a 109, all you have to do is tilt the engine and gearbox to the drivers side, this gives clearance for the turbo

i know of at least two people that have done it this way, no cutting no welding just lift the passenger side mounts, i'll have to check how they've spacered the rubbers or if they've fitted taller rubbers

i will agree on the often shoddy fitting of 200tdi's into series motors

so here's a picture under the bonnet of Big Ears (airbox now mounted on passenger footwell)

i agree again with the amount of shoddy conversions, dont be one but a TDI is probably the best improvement possible to a series. maybe transit engine mounts will be tall enough for the turbo clearance on a 109

i have them on my series 88" and it does sit over an inch higher. and the rubber compound is just right and it is so much smoother to live with especially on tickover.