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finmac
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Old Twin cams?

I've always been quite attracted to the old timers (1970s twincams). I see there's a couple on Pistonheads just now - a private one at a very optimistic £32K and a dealer one at £27K. Any experts or owners on here please? Interested in how they drive and values/desireability etc?

Englishmaninwales
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I can only speak from twin cam ownership in different car (Elan). The engine can be expensive to rebuild, especially if the cylinder head requires work or a new replacement CH is needed.

That said this engine, once sorted, is a sheer delight when pressed on hard!

Malcolm

Ed White
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I'm going down the route of a 2 litre zetec, fitted with a superb replica BDA cam cover, and probably the Weber throttle bodies that look just like 45's. The look, with modern mechanicals and good reliable power. Twin cams are outdated as road engines in my opinion. Old, quite unrelaible, low power, expensive to tune in search of power that is still not great compared with a modern engine.  Just an opinion.

finmac
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I appreciate your thoughts. Engines and power outputs have certainly moved on over the past 50/60 years for sure. For me, it's not really the power that's a big deal as I am lucky to have access to some much faster cars. I would see an old twin cam as being a car for pottering around and having fun in! 

simon_h
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Old twin cams are just that, old. They are also more characterful than modern stuff. If anyone has a twincam seven and fit a zetec other than to make sure the twincam is safe in case the next owner wants to put it back needs their bumps felt lol. 
Id rather have a slower twincam car than almost any of the newer ones. 

DougBaker
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I still remember being overtaken by a twincam on my first ever track day. I could not hear the engine of my own car as the twincam roared past Smile

Lower power and skinnier tyres can be a huge amount of fun on road and track, you don't need modern tyres and power outputs to have fun.

1.6K Roadsport SV

East Kent AR
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I used to own a Big Valve Twin Cam in my 1973 Lotus Europa Special Reg no 512 LOT. I had the top end rebuilt by Miles Wilkins, plus he balanced the complete engine. I reassembled it and for once, it did not leak oil. After having the crank & flywheel balanced, it was very smooth. I should never have sold it and it now resides in Japan.

OK, it's not up with modern twin Cams, but it had real charm. They are now very expensive to rebuild and will become more sought after and the price can only go up.

Piers

 

Piers Rendell
East Kent AR
eastkent@caterhamlotus7.club
 

 

Nigel Blandin
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Twin cams are not unreliable motors. They just need to be properly built by someone who actually knows. Check the provenance of the motor. The rest is just an older Seven, ie, brilliant.

They are an old motor, even a model tune on a cross flow makes more power...But, there ain't nothin' like a twin cam! Except a BD...

Englishmaninwales
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#8 agreed, they are not unreliable when carefully assessed and built. They benefit also from balancing, but as I said earlier, all this can be expensive. 
I think my 'modern' twincam 220 bhp ported VHPD with TBs on full song is fab, but I prefer my 105 bhp Lotus twin cam!

Malcolm

SLR No.77
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#9  And having "chased" your twin cam Elan across North Wales in my SLR I can vouch the twin cam is no slouch! 

Big power isn't needed for road use and I expect the zing of a twin cam is very rewarding to drive.

Stu.

Caterham and Lotus Seven Club Leadership Team Member

The register for all numbered limited-edition Caterhams ....... www.thecaterhamregister.net ...... www.instagram.com/thecaterhamregister

Golf Juliet Tango
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Tidy, today.

Stephen

Democratic dissent is not disloyalty, it is a positive civic duty