Converting Renault Europa to Twin Cam - LotusTalk - The Lotus Cars Community
 
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post #1 of 9 (permalink) Old 01-03-2015, 02:47 PM Thread Starter
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Converting Renault Europa to Twin Cam

I am sure it has been discussed before but I cannot find it. If I have a 69 S2 with Renault engine and want to drop in a twin cam big valve engine, is it drop it or other major modifications are needed?
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post #2 of 9 (permalink) Old 01-03-2015, 08:40 PM
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It's definitely not drop-in. The S2 frame is shorter and narrower and the TC engine and transmission won't fit without major surgery.
I think some people have put S2 bodies onto TC frames though. Then you can use all sorts of engines.

'67 Elan S3
'72 Europa TC
'05 Elise
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post #3 of 9 (permalink) Old 01-04-2015, 01:40 PM
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Quote:
Originally Posted by keinayo View Post
I am sure it has been discussed before but I cannot find it. If I have a 69 S2 with Renault engine and want to drop in a twin cam big valve engine, is it drop it or other major modifications are needed?
It's a serious job.

So you want to put in a heavier engine?

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post #4 of 9 (permalink) Old 01-04-2015, 01:42 PM Thread Starter
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looks like no point in doing it
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post #5 of 9 (permalink) Old 01-04-2015, 02:06 PM
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Rob sold a Gordini version last year. These are bolt ins and offer more power.

05 elise (BOE Rev300 supercharged, SSRs, shift tower mods, Multivex; HID hi/low beams); 05 Corolla XRS. Past '72 Elan Sprint (I restored), Lotus 7 w/X-flow, TT Supra, Bugeye Sprite, BMW 2002 & 2002tii, '65 GTO.

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post #6 of 9 (permalink) Old 01-07-2015, 06:29 AM
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Keep the Renault Gordini. It's a lighter more compact aluminum block, more reliable and you can fuel inject it and add a turbo thanks to Feugo spares.
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post #7 of 9 (permalink) Old 01-07-2015, 06:31 AM
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PS. If you are hellbent on going Lotus twin cam I'll buy your Renault motor. ?
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post #8 of 9 (permalink) Old 02-01-2015, 09:16 PM
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The Twin Cam has an inch longer wheel base than the S1-S2, most of it in the engine bay. The S1-S2 chassis forks at the rear, making one long, narrow-angle 'V' back to the chassis cross-member.

The Twin Cam engines timing chest that encloses the run of chain to the overhead cams is much wider than the front of the pushrod Renault engine. In order to fit around the wider engine, the Twin Cam chassis' legs fork at a much wider angle, reaching full width much quicker, then running parallel back to the chassis cross-member.

The wider Twin Cam won't fit into the narrow S1-S2 chassis without notching the chassis, then reinforcing the chassis to compensate for weakening it with the notches.

It can be done, and dedicated owners are putting Toyota 4AGE and Ford Zetec engines into S1-S2 Europas. It's not a simple bolt in, and requires significant chassis and suspension modifications.

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Tim Engel
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post #9 of 9 (permalink) Old 02-23-2015, 04:17 PM
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Find yourself a wreck twincam Europa and get as much part off of it. The water pipe tubes and shift linkage and the trailing arms will be needed. If you keep your 336 gearbox you will need to swap out the bellhousing with the one from a twincam to make it work.

If you are going through all that work look for a Weber head and make yourself a 47 look-a-like.

[IMG][/IMG]
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