Engine conversion. Any people who can do it? TDI

[ashr88]

Hi all, I have a 1992 Mint Scirocco GT2 in black.

2 Problems, Its an auto and I need to go more eco.

I use the as a daily and it costs a fortune. The engine it tired and I think I want to get modern performance and economy. I thought the safest way would be to go TDI. I do want power and I do want economy.

Does anybody know where I can get my car converted to a diesel engine or maybe a more economical petrol engine? Also, what would I be best doing about the gearbox? I know I can convert it but could I leave it as an auto and some how run a modern auto in it rather than the standard 3 speed?

I have money I just dont have the knowledge or know how to do this sort of thing myself. Any advise whatsoever would be great.

I know I should just buy a modern car but I love the old Scirocco so so much! Thanks.

[the edmundator]

Erm, how many miles are you doing? You will need to be doing massive mileage for savings on fuel to in any way offset the cost of paying someone else to do an engine conversion for you.

[ianaudia4]

Hello and welcome. You may get a better response if you state your location!
There are plenty of VW specialists out there and most engines can be made to work, the hard part is the money!!!

[james butler]

Why not put an ad up to swap cars with someone who's got a manual rocko?

[GTXTRA]

robinjt - usually found on retro-rides did one as a homebrew conversion.

worth tracking his treads down over there.

also a few mk1 golfs have had the td conversion - check edition 38 or club gti too.

[MJK 24]

My Scirocco has been turbo diesel for years. I used a 1.6 from a Mk2 Golf GTD. This engine can also be found in the Passat turbo diesel up until 1993.

The advantage of this set up is the sheer simplicity of fitting it to a Scirocco. It uses existing engine mounts, water hoses and fuse box. You unplug your current engine loom and replace with a Golf Mk1 diesel loom. The flow plug relay fits in location two on the fuse box and everything works as if by magic.

The engine is 'only' 80bhp but the trick part is torque. It makes 115lbs ft which is slightly more than an 8v GTI engine. The real added bonus is that it makes that torque at just 2,400rpm which is 1,100rpm lower than a GTI engine. The end result is a car that will leave any standard 1.8 carb Scirocco standing and will pull a little harder between say 40-80mph than a GTI due to the torque. It won't ever be as quick as a GTI from a standing start but it's not a million miles away.

I get 52mpg per tank. Costs me £66 to do 560 miles on the last tank.

It'll do 110mph (on the speedo) easily. It'll cruise as happy as larry at 95-100 mph all day long. I've taken it to the south coast of Portugal a few times.

If someone offered to pay me to put a GTI motor back in and offered to pay for the extra fuel I'd decline. The torque from this little engine makes it an effortless drive. Look into it before going TDI would be my advice. They're much heavier, drive by wire and you'll need to change gearbox and linkage. All that effort for another 10bhp and 20lbs ft of torque.

[jond]

how would this engine conversion affect insurance , mot test , car tax bracket ect
also I believe the fuel nozzle for a diesel is bigger so how can that problem be overcome
I cant seem to find any of this type of engine for sale anywhere has anyone got a link to one so I know what to look for
this could be an interesting project to have a go at so any info would be great , car is a 1988 gt 8v carb at the moment , thanks

[MJK 24]

how would this engine conversion affect insurance , mot test , car tax bracket ect
also I believe the fuel nozzle for a diesel is bigger so how can that problem be overcome
I cant seem to find any of this type of engine for sale anywhere has anyone got a link to one so I know what to look for
this could be an interesting project to have a go at so any info would be great , car is a 1988 gt 8v carb at the moment , thanks

You will have to inform your insurance company.
No affect on MOT test apart from he will need to do a diesel emissions test.
There's only two tax brackets for cars made pre 2001. Upto 1,550cc and over 1,550cc. Fuel type is irrelevant.
Diesel fuel pump nozzles are bigger but on old cars like a Scirocco, the fuel filler necks are bigger as petrol nozzles used to be much bigger than they are now. You can fuel up no problems.

You have a carb car at the moment, this is the best basis for a diesel conversion as the fuel lines are better positioned than the fuel injection models.

If you need anymore info, just ask and I'll try and help.

[skattrd]

Quick bump for this, as I am considering this myself. I'd love a mk4 110 (non-pd) tdi conversion but due to lack of skills the 1.6TD sounds more likely.

I've got a couple of questions about this conversion, which are probably aimed at MJK 24, unless someone else has info on this.
Loom - can the loom from a mk2 GTD be used or does it need to be a mk1 diesel? If so can these be found anywhere apart from in mk1 diesels?
Starting point - injection or carb Scirocco, 1.6/1.8? Does the exhaust manifold mate up correctly? I would be thinking about fitting a 4 branch for better flow/power

Cheers
Chris

[bengould]

Total guess but I'm gonna say no on the manifold because of the turbo. I would think you'd need the diesel downpipe too.

Ben.

[Ryan]

As an aside there's a guy on UKPassats selling a 1.6 diesel at the moment...

http://www.ukpassats.co.uk/phpbb/viewto ... 93&t=67840

[skattrd]

Doh! - cheers ben, I'd completely forgotten about the turbo sitting there, so I also think that the downpipe may be required as well.
I do have experience of arsing around with turbo's, so can't believe I didn't think of that earlier.

[skattrd]

Thanks for the link Ryan, but I think I'd be better off with a complete car so I get the loom and other ancillaries.

[MJK 24]

Sorry for such a late reply.

The Golf GTD loom won't be any use. You need a loom from a Mk1 Golf or Caddy 1.6d. Plus this into your fusebox instead of your existing engine loom. Add the glow plug relay to location 2 on the fuse board (injection relay) and hey presto, it all works by magic!

[sabre0699]

Has anyone carried out this conversion on a mk2 loads seem to have done them on corrados using the mid 90's Passat fwd 1.9 tdi motor but very little re the Scirocco.

I have a gt2 that has been sitting in a barn since 2005 that is ripe for an engine swap.

Have been spoilt by the fact that my cars recently have all been diesels. A 2004 polo gt which has the 130 bhp 1.9 tdi pd engine, a 2003 Audi A4 with the same motor but remapped to 160 bhp and the wife has an audi a3 2.0 tdi sport remapped to 170 bhp. on the road all of them absolutely trounced my old 2.0 16v corrado even though it was chipped to 150 bhp