hilly Posted September 28, 2006 Report Share Posted September 28, 2006 (edited) After having my Esprit for over 4 years now and carrying out a number of mods, I figured it was time to do something a little bit different. My car was in pretty poor condition when I bought it as a non- runner and it is now in far from original condition so I thought I would go a bit radical. So the 912 engine is coming out and a Audi 4.2l all alloy V8 is going in together with a 6 speed gearbox that won't implode. The engine is the same weight as the lotus V8 and produces 320bhp and 300ft/lb without the sign of a turbo so it should make an interesting conversion. It is also a fair bit shorter than the 912 so I can move the engine mass further to the centre of the car which should help offset the weight penalty. There are a number of issues that need to be solved in the process (the rear brakes being one of them), but all of them I can get around with a bit of head scratching. I have started a project thread on another site which I will be adding weekly updates, so if anyone is interested in how I get on then have a look here ............. clicky Take one 1981 Lotus Esprit S3 Pull out the 2.2litre 4 pot Lotus engine/Citroen gearbox and chuck in an Audi 4.2 V8 and six speed transaxle in here. I have finally got hold of an ABZ from Germany and have balanced a 6 speed 01X gearbox onto it for giggles. Got the tape measure out an I reckon it should be a pretty good fit as the ABZ is a fair bit shorter than the Lotus 912 which is coming out. Unfortunatly this is were it all starts to go pear shaped. The engine suffered a bit as the sump got bent during shipping. So I whipped it off to straighten it and in the process this is what found in the sump. Arse !!!!!!!!!!! Had a look inside the crankcase to find plenty of dents from flying metal. So what are the lumps that fell out of the bottom of the engine ?????? Time for a game, spot the difference between these 2 pictures ............... The observant among you will notice that the piston oil spray bars are missing in the second picture. Laying the mashed bits of metal out it becomes evident that in fact 2 of them have come adrift. So it is time to strip the engine down to investigate a bit further. I find that piston number 8 has taken a hit from flying metal and has suffered a bit of weight reduction. Unfortunately the cylinder wall hasn't come out scott free either. So I now have a very large and heavy paper weight in my back garden. On the bright side, the guy I bought the engine from is sending me another ABZ and doesn't want the old one back which means I have got a whole pile of spares It took a while, but I finally got hold of another ABZ from a crashed A8. Went to a field in Gloucestershire and spent 7 hours removing this thing (jeez were the bellhousing bolts hard to get at). I am starting to get a bit of a collection of these things Now that I have got some working bits to carry on with the conversion first thing to do was to remove the old Lotus engine. With it out you can see the similar configuration to the Audi front wheel drive layout. Getting this out took most of Sunday, but there was time to trial fit the ABZ and 01X into the engine bay. First impressions are that it is a pretty good fit, it even goes round the OEM engine covers. It is not all rosy though, the ABZ has a much wider sump than the Lotus 912, things are made even worse as it is offset to one side. This unfortunatly means that the sump hits the chassis by the engine mount. This is why the engine looks tilted to one side in the couple of pictures. I can't chop the chassis about to gain clearance as there would then be nowhere to put the engine mount. So I am going to have to cut a section off the sump. Not ideal, but I have no choice. Other than that it is looking good at the moment. Next on the list is to make sure there is clearance for the exhaust manifolds and then I'll chop a chunk off the sump, check it fits and then start fabbing up some engine and gearbox mounts. I'll now sit back, grab a bag of popcorn and wait for all the shouts from people about fitting non-OEM parts to an Esprit ... munch, munch Andy Edited October 8, 2006 by hilly Quote 1981 S3 4.2 V8 6 speed (The Mutant) Mutant V8 Conversion Thread Knowledge is power .................... apparently. Link to comment Share on other sites More sharing options...
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