Best platform for TDI Engine?
Best platform for TDI Engine?
Author
Discussion

tankplanker

Original Poster:

2,479 posts

309 months

Monday 3rd February 2014
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So I've had my mark 1 Fabia vRS for three and half years now as my DD and I'm keen to swap it for something else as I want something lighter (kerb weight is 1315kg) and with better traction. Grip is important to me as I want to up the power but currently can't as I struggle to put the power down. I could fit a LSD and remove a ton of stuff except I did that already.

The engine has had a fair amount of work to improve it and I'm happy with the amount of power (~220 BHP) vs. economy (~52mpg during my ownership calculated using fill to brim method) so I want to keep the engine and move it to a new car. I'm told that anything with the infamous Audi 1.8T lump is a reasonably straight swap, anything with a 1.9TDI lump would also be easy to swap my upgraded parts over to, so anything in that ilk is prefered. Anything requiring lots of work is going to be a no no.

I thought about a Mark 1 TT as that has a ton more grip but that is a fair amount heavier.

conkerman

3,515 posts

165 months

Monday 3rd February 2014
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MGF/MR2

Mot a trivial job.

Loads of 4wd VAG stuff out there, so whats more important, weight or traction.

Personally, I'd just buy something faster and pay the extra.


RizzoTheRat

28,930 posts

222 months

Monday 3rd February 2014
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vrooom

3,763 posts

297 months

Monday 3rd February 2014
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any rear engined car will do. with good soft tyres....

mini1380cc

2,949 posts

201 months

Monday 3rd February 2014
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As you have eliminated tricky transplants and already know the relative easy of using a VAG platform that sort of brings you back the the original fabia thats its already in. What in the vag group is lighter than that apart from the Lupo/Arosa?

tankplanker

Original Poster:

2,479 posts

309 months

Monday 3rd February 2014
quotequote all
I'd love the seven/westie but it wouldn't work as my DD. Elise is as close as I'd want to get with that style of car (and would take over a MGF or MR2) but I've heard that the TDI is too heavy and really compromises the car, I think the 1.8T is ~50kg heavier than the 1.8 rover and the TDI is another ~50g heavier still?

Which rear wheel VW would take the TDI? Old style Beatle? Wouldn't it do wheelies everywhere? biggrin

I thought about the 3L Lupo as that is 830kg (not sure if that is kerb or dry weight) and I know that will take the 1.9 TDI as it has been done several times. Obviously traction is going to be worse on the Lupo, thats the only thing stopping me TBH.

Would a Mark 2 golf with 4 wheel drive take the TDI? Mark 2 is meant to top out at 1245kg.

RizzoTheRat

28,930 posts

222 months

Monday 3rd February 2014
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Putting a much heavier engine in the front of the Lupo would surely help with traction issues though? Would it fit in a Fox or Up?

jamieduff1981

8,092 posts

170 months

Monday 3rd February 2014
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I think you should just buy a faster car boxedin

tankplanker

Original Poster:

2,479 posts

309 months

Monday 3rd February 2014
quotequote all
The fabia is already porky when it comes to weight over the front wheels, something like 66% of its weight is over the front, and I'm still struggling for grip. I guess bigger wheels is my only option.

Show me something faster that will cost me ~£5k to change and come close to the running costs including fuel. Service and MoT on the fabia is about £140 every 10k, insurance is reasonable considering all the mods declared, tax is £130, and I've achieved 52mpg over my ownership of the car.

I'd expect the Lupo 3l to increase the MPG a bit as its lighter and increase the performance from 167bhp/ton to well over 200bhp/ton before I consider replacing injectors to push the map to 260bhp giving me at least 260bhp/ton.

cianha

2,175 posts

227 months

Monday 3rd February 2014
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RizzoTheRat said:
Putting a much heavier engine in the front of the Lupo would surely help with traction issues though? Would it fit in a Fox or Up?
Different platform, I don't think the PD unit swap would be quite so straightforward.

RizzoTheRat

28,930 posts

222 months

Monday 3rd February 2014
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Can you retrofit an LSD?

Bennet

2,133 posts

161 months

Monday 3rd February 2014
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It sounds like you need wider wheels and stickier tyres, rather than an engine transplant into something else.

I'm finding it hard to imagine in what circumstances you are struggling to "put the power down". Is this really that common an occurence? Are you drag racing the thing?

tankplanker

Original Poster:

2,479 posts

309 months

Monday 3rd February 2014
quotequote all
Its possible to wheel spin it in the wet in a straight line without touching the clutch. Its quite easy for it to lose grip when cornering hard as well. I'm not exceeding the speed limit here but I am getting to it rather rapidly.

The suspension is stock but refreshed with new springs, dampers and a fair chunk of the bushes last year.

The tyres aren't performance ones, they were chosen as they had good rating for life span and MPG, I agree that an upgrade to ones rated for better grip would help. Width of the tyre is an issue with standard arches/liners, I'm going to have to get the liners removed and the arches rolled, not sure that'll buy me more than an 1" or so of width though.

I'd like to downsize the wheels from the 17"s to 16"s as a larger sidewall would help but I doubt I'll fit them over the brakes.

HustleRussell

26,538 posts

190 months

Monday 3rd February 2014
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Hmmm... 1.9TDI + transaxle gearbox + Old RWD Skoda = quirky, lightweight awesomeness?

willmagrath

1,384 posts

176 months

Monday 3rd February 2014
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I've got a fabia vrs too! I love mine but also want something lighter to chuck around a bit. So im just gonna buy a cheap mx5 soon to have some fun in summer with. And keep the fabia for the daily slog and overtaking lorry fun. But for you, you could buy a cheap used caterham style unfinished kit off ebay and buy a £500 DD, all that toque in a half tonne car would be hilarious fun!! Bit tricky to fit the engine though......