The Iconic TwinCam

[GrUmPyBoDgEr]

Page 1 List updated.
Any more additions, refinements?
What about the "Tuners"?

Cheers
John

[ebc699]

Hi All,
Agree totally with Rohan, Classic Racing Engines is a great book. To maintain the round 50 engines featured, it just needs the H16 BRM removing and the Lotus Twin Cam in it's place???
Cheers,
Wylie

[GrUmPyBoDgEr]

Hi All,
Agree totally with Rohan, Classic Racing Engines is a great book. To maintain the round 50 engines featured, it just needs the H16 BRM removing and the Lotus Twin Cam in it's place???
Cheers,
Wylie

Well we've gone a bit off topic but I ask myself how anyone would want to forget the BRM H16
Have a listen:-

videos.streetfire.net/video/The-Sound-of-BRM_141534.htm

Hope it works
John

[Elanintheforest]

I saw a BRM 16 running at Historic Winton in Victoria back in the 80s. What a sound, but as anticipated, only lasted 3 or 4 laps before it died. Did one of these ever finish a race??
Mark

[ebc699]

The H16 (as opposed to the earlier V16) won one F1 Grand Prix: the USGP at Watkins Glen in 1966. It wasn't in a BRM though but a Lotus driven by Jim Clark. Which brings us slightly nearer to being on topic........maybe.
Wylie.

[robertverhey]

Slightly off-topic, but hey, so is BRM. This listing on ebay caught my eye
http://cgi.ebay.com/ebaymotors/Coventry ... 240%3A1318

How on earth do they get this motor to run on its side like that, when parts of the engine (sump, oil return, carburettors) are dependant on gravity for their operation?

Sorry not about T/C motors, but it is about lotus engine applications. I daresay Coventry Climax had an even more varied history?

[andyelan]

Hi Everyone

As I said earlier, the links between the Twin Cam and Coventry Climax were very close (as they were with Jaguar and BRM), in fact I would really consider that the Twin Cam was actually a Coventry Climax design. Just take a look at the cylinder heads and cam covers from the Coventry Climax 1500 V8 race engine and compair them with the Twin Cam.

Now here's a thought, I wonder if a detuned Coventry Climax V8 would fit into my Plus 2

Andy

[garyeanderson]

Slightly off-topic, but hey, so is BRM. This listing on ebay caught my eye
http://cgi.ebay.com/ebaymotors/Coventry ... 240%3A1318

How on earth do they get this motor to run on its side like that, when parts of the engine (sump, oil return, carburettors) are dependant on gravity for their operation?

Sorry not about T/C motors, but it is about lotus engine applications. I daresay Coventry Climax had an even more varied history?

The sump for the Bearcat 85 outboard is located in the lower unit and holds about 2 3/4 quarts of oil (which is good for about 40 hours at the rate that it consumed oil) so Gravity still works, the carbs are an outboard designand are rotated so that the fuel bowls are on the bottom. The engine is actually running on its nose, the stock front cover is replaced with one that allows the crankshaft snout to drive the lower unit. The Flywheel end is used for the alternator. Close to 600 Bearcat 85's were built before the first oil embargo killed off this expensive bit of water toy...

[GrUmPyBoDgEr]

Slightly off-topic, but hey, so is BRM. This listing on ebay caught my eye
http://cgi.ebay.com/ebaymotors/Coventry ... 240%3A1318

How on earth do they get this motor to run on its side like that, when parts of the engine (sump, oil return, carburettors) are dependant on gravity for their operation?

Sorry not about T/C motors, but it is about lotus engine applications. I daresay Coventry Climax had an even more varied history?

Yes one of the major problems was oil return / scavenge.
I don't think they ever really cured the bottom banks from flooding in the camshaft areas.
Ooops, sorry I thought you were on about the H 16 to which that answer does apply.
However most normally configured engines can be made to work vertically or even upside down.
some examples Messerschmitt ME109E Mercedes V12 upside down. Also Junkers engines.
What makes the mind boggle are the Bristol Hercules & Centaurus also Pratt & Witney radial engines
I should know how the oil scavenge system worked but have forgotten.
My apprenticeship (at Bristol Siddeley / Rolls Royce) was a very very long time ago ops

John

[GrUmPyBoDgEr]

Now here's a thought, I wonder if a detuned Coventry Climax V8 would fit into my Plus 2

Andy

Of course it would fit; where there's a will there's a way
The problem would be finding one & then being able to pay for it

John

[SJ Lambert]

In Australia you can add Elfin and Renmax

cheers
Rohan

Elfin Sports Cars took their new type 600 to Singapore in 1968 and won the (National) Grand Prix with a Twin Cam fitted, this unit was in the factory a year or two earlier and likely went into one of their type 100 open wheelers.

[RogerFrench]

Hi All,
Agree totally with Rohan, Classic Racing Engines is a great book. To maintain the round 50 engines featured, it just needs the H16 BRM removing and the Lotus Twin Cam in it's place???
Cheers,
Wylie

Well we've gone a bit off topic but I ask myself how anyone would want to forget the BRM H16
Have a listen:-

videos.streetfire.net/video/The-Sound-of-BRM_141534.htm

Hope it works
John

By the way, if anybody cares, that recording is NOT of a BRM H16, it's the 1.5 litre Supercharged V16. Anorak day today.