Kicking Ideas Around - Series 1 Turbo

**101RRS** · 9th June 2012, 02:04 PM

Just throwing this out there for comment and discussion.

With the cost of small turbos being quite reasonable and the exhaust system on a series 1 2litre being very basic and easy to get at - how would a turboed 2 litre go?

With the exhaust manifold sticking straight out from the engine a turbo could easily be bolted on and the rest of the exhaust grafted on. Plumbing on the air side would not be difficult and even an intercooler included without too much trouble. Oil supply could be taken from the rear of the engine if it wasn't going to reduce flow to the head.

So would the old 2 litre be up to this - compression ratio is already conveniently low - what other mods to the engine might be needed?

This is one of these things we think of when day dreaming so not a plan - but a thought for discussion.

Cheers

Garry

**shorty943** · 9th June 2012, 02:57 PM

Hmmmm, how many main bearings does that engine have, and, is there room for custom 4 bolt rods?

**123rover50** · 9th June 2012, 03:59 PM

You talking two litre petrol or two litre diesel?

**Mick-Kelly** · 9th June 2012, 04:36 PM

I have a 2 litre petrol sitting here on an engine stand if you want any pictures.

**land864** · 9th June 2012, 05:21 PM

Garry

There was s a S1 2 litre diesel out back of a shed in Eltham here some time ago.

I approached a fella about buying it but he had promised it to another landy nut.

Point being , the guy I spoke to was the owners son and both he and dad were fitters and turners. They had made their own turbo some 30 years ago and had fitted it.

It may still be in Eltham at the new owners address that I also know.

If I could get some pics would you be interested?

**101RRS** · 9th June 2012, 05:31 PM

Originally Posted by 123rover50

You talking two litre petrol or two litre diesel?

I was thinking petrol. Not sure of the exhaust arrangement on a diesel - if basically the same as the petrol - ie straight out the inner guard then why not a diesel as well

**ellard** · 10th June 2012, 06:26 AM

Hi there

I am not to sure if the engine would or could handle it - honestly I like the idea Keith has done with fitting the 200 TDI engine to a 80"

All the best

Wayne

**Blknight.aus** · 10th June 2012, 06:41 AM

the petrol would take a mild boost the problem would be jigging the carby to suit.

**rover-56** · 10th June 2012, 07:52 AM

Thought about this for my S3 2.6 a couple of times. Biggest prob would be plumbing the carb. (aircleaner/carb/compressor inlet/compressor outlet/back to inlet manifold.)
Bit of a plumbing nightmare.
I think the engine would take a mild boost ok though, mine did 100K miles with a Weber carb and 4 branch exhaust manifold.

Terry

**tangus89** · 10th June 2012, 08:43 AM

I looked into it For my 2.6 also, but found that to run the 'draw through' (carb before compressor) setup the turbo would have to be mounted on the intake side to make much of an increase and reduce horrific turbolag.
The only major bonus i could see with this set up is you can use the standard carb.
but there are carbys out there and tutorials to Mod certain carbys to be setup as a 'Blow through'. This way you can run the turbo on a short exhaust manifold and run an intercooler etc. but is a pain in the ass to tune and get the fueling to match the boost. There are some systems that i found that were successfully done like this, but more work than it was worth to me so i stopped looking.

Cheers
Tangus

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