Aircooled t25 convirsion to deisel

Alternative power-plants and transplants (GTi, Porsche, Subaru, Audi, diesel etc). Discussion and Q&A last answered over 2 years ago.
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toomanytoys
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Post by toomanytoys »

Bit different comparing a 2L Aircooled with 70 bhp to a Jag V12 thats prob tuned to hell and pushing 300 bhp... But what would I know..

I agree each engine is different but lets see where the base line is...

:? Looks like I should shut up...

But before I do... pop over and help him get it running as best he can Andy? I would but its bit of run and I am stuck werkin in Holland at the mo....

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Post by gypsy »

toomanytoys wrote:
But before I do... pop over and help him get it running as best he can Andy? I would but its bit of run and I am stuck werkin in Holland at the mo....

that would be a good idea

had it tuned 2 months ago and was advised to use engine flush to lube the hydrolic tappets which I did then adjust them which I did and it does run better

but what ever i can get outta it would be better than what im getting now

still interested in going for a better engine such as td / tdi, dont know if scooby would give me much benefit ???? due to size and weight of van

ta marc

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Post by andysimpson »

toomanytoys wrote:Bit different comparing a 2L Aircooled with 70 bhp to a Jag V12 thats prob tuned to hell and pushing 300 bhp... But what would I know..

I agree each engine is different but lets see where the base line is...

:? Looks like I should shut up...

But before I do... pop over and help him get it running as best he can Andy? I would but its bit of run and I am stuck werkin in Holland at the mo....

Its about the same power per litre, the jag v12's are just heavy noisy snails a bit like the 2 litre air cooled really. :lol:

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Post by andysimpson »

gypsy wrote:
toomanytoys wrote:
But before I do... pop over and help him get it running as best he can Andy? I would but its bit of run and I am stuck werkin in Holland at the mo....

that would be a good idea

had it tuned 2 months ago and was advised to use engine flush to lube the hydrolic tappets which I did then adjust them which I did and it does run better

but what ever i can get outta it would be better than what im getting now

still interested in going for a better engine such as td / tdi, dont know if scooby would give me much benefit ???? due to size and weight of van

ta marc

You would be surprised by the scooby and it fits nice due to shape being the same.

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Post by gypsy »

will it have the torque to pull the gypsy ??

and better mph

ta marc

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Post by andysimpson »

gypsy wrote:will it have the torque to pull the gypsy ??

and better mph

ta marc

You won't win any drag races but will be better than the 2litre Aircooled otherwise known as an anchor. I think the 2.2 is the one to go for.

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Post by gypsy »

tell me more

ta marc

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Post by andysimpson »

gypsy wrote:tell me more

ta marc

You need a subaru geek now, i am only a vw geek.

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HarryMann
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Post by HarryMann »

The EJ22 has oodles of torque, probably reaches the WBX's max at 1500rpm and goes up from there, plenty of torque graphs around...

... and don't forget, its not just engine torque that matters but actual driven wheel torque which is engine torque multiplied by gear ratio !

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gypsy
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Post by gypsy »

so would be well worth looking at what gearbox i have as well

Ive heard of a few companies doing adaptors etc

which are the best

ta marc

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HarryMann
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Post by HarryMann »

Adapters for the Subie?

There's two really, the KEP (US) adapter plate method and the RJES (UK) bellhousing, which marries almost any Subie to any VW gearbox - all in Alt Engines, just read up on it:-

https://club8090.co.uk/forum/viewtopic.php?t=193

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HOT 1200
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Post by HOT 1200 »

Having done a TDI conversion, I can assure you its not a straight swap job. (and I took the poor mans route of using a mechanical pump! which is easier & cheaper)
I have to agree with peoples comments, My converstion was from 1.9 waterboxer to 1.9 TDI.....and that provided more than enough head aches.. so to convert from Aircooled to watercooled will need all manor of parts, head scratching, time & money.....
For long term ownership, you will need to do something with the gearbox...my tdi will rev through all 5 gears to almost 80mph in an instant, with Tdi motors, standard T25 box's are under geared...when Im in 5th, I feel like I could change up to 6th if you know what I mean !!!

I would look at your 2ltre engine....perhaps consider a rebuild, diffrent cam choice??? You dont need massive carbs if you want pure low down grunt & torque..... Most 2 litre motors are tired having never been appart since they left the factory 25 years ago.......
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toomanytoys
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Post by toomanytoys »

The box would prob be fine with e scoobie.. but its still a hell of a lot of work..

TDi/stronger/taller gearbox.. speak to Aidan Talbot.. (link below)

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Post by gypsy »

HOT 1200 wrote:
I would look at your 2ltre engine....perhaps consider a rebuild, diffrent cam choice??? You dont need massive carbs if you want pure low down grunt & torque..... Most 2 litre motors are tired having never been appart since they left the factory 25 years ago.......
GaV

the engine was rebuilt about 12 - 18 months ago before i purchased the van and came with these carbs

ta marc

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Post by wolfie »

subaru lump on lpg

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