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Cosworth SCA F2 engine


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#1 David Birchall

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Posted 13 December 2005 - 00:24

Does anyone know of a site devoted to these engines? I am looking for a cutaway/sectional drawing plus dimensions.
David B

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#2 bradbury west

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Posted 13 December 2005 - 00:33

There might be a cutaway drawing in Motoring News of the time. It was the sort of thing they did so well.

Roger Lund.

#3 Michael Clark

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Posted 13 December 2005 - 04:50

Originally posted by bradbury west
There might be a cutaway drawing in Motoring News of the time. It was the sort of thing they did so well.

Roger Lund.


Graham McRAE has mentioned a couple of times about the day the 'cut-away' drawing man from MN came down to Poole to draw the GM1.

Graham could not believe the level of detail when he saw it in Motoring News a few weeks later.

Was his surname Matthews?

#4 Terry Walker

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Posted 13 December 2005 - 05:57

The nearest thing I know to a site is

www.nagor.org/scai.pdf


Which contains a detailed spec sheet of the SCA but I expect you know about that one.

#5 macoran

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Posted 13 December 2005 - 07:48

Michael,
Any chance you have a scan of the GM1 cutaway ?

#6 Macca

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Posted 13 December 2005 - 09:17

David,
You need the Autocar for 16th April 1965 which has a 4-page article on the SCA, including a cutaway by John Marsden and lots of details.

Also TNF-er 'KDW' is rebuilding one at the moment, perhaps you could PM him.


Paul M

#7 RTH

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Posted 13 December 2005 - 10:39

Originally posted by Michael Clark


Graham McRAE has mentioned a couple of times about the day the 'cut-away' drawing man from MN came down to Poole to draw the GM1.

Graham could not believe the level of detail when he saw it in Motoring News a few weeks later.

Was his surname Matthews?


Tony Matthews for me the greatest technical illustrator of all time.

#8 Ray Bell

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Posted 13 December 2005 - 11:34

James Allington was more than fair...

#9 macoran

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Posted 13 December 2005 - 11:49

True !!
But I really loved the coloured Betti ones in Quattroruote

#10 David M. Kane

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Posted 13 December 2005 - 13:12

Bill Bennett was pretty good too. He did a very nice job on the McLaren M19 and the first Tyrrell. Even then he was having trouble getting access to the cars as the principals were paranoid of the competition getting ahold of their secrets.

I have a copy of his BRM P153 hanging on my wall.

#11 David Birchall

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Posted 13 December 2005 - 17:13

Originally posted by Macca
David,
You need the Autocar for 16th April 1965 which has a 4-page article on the SCA, including a cutaway by John Marsden and lots of details.

Also TNF-er 'KDW' is rebuilding one at the moment, perhaps you could PM him.


Paul M


Thanks to all who responded, both on line and off. Can anyone provide me with a scanned copy of the Autocar article?

David B

#12 Michael Clark

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Posted 14 December 2005 - 05:18

Originally posted by macoran
Michael,
Any chance you have a scan of the GM1 cutaway ?


Milan could probably walk straight to it.

I well remember it and always loved those cut aways.

#13 macoran

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Posted 14 December 2005 - 10:48

Michael,
would that be member posting under Milan F1 ? or ?

#14 Michael Clark

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Posted 14 December 2005 - 20:25

That would be Milan Fistonic who not only has an amazing book and magazine collection, but also a formidable filing system as well!

#15 macoran

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Posted 14 December 2005 - 20:31

Thanks Michael I'll try to mail him

#16 JB Miltonian

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Posted 14 December 2005 - 23:27

Road & Track, April 1966, article "The Cosworth Story" by Tony Hogg, page 84, has a full-page cutaway by John Marsden, Autocar copyright, of the Cosworth F2 engine, single cam. It's a 6 page article.

#17 macoran

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Posted 14 December 2005 - 23:29

Euhm,
be easier if you scan that if you know the pages !!
I'll check if I was born then

#18 JB Miltonian

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Posted 14 December 2005 - 23:38

I would be happy to scan and email the cutaway illustration to Mr. Birchall, or to anyone who wishes to see it, if you send me your email address. I'm not usually too picky about copyright issues, but it seems pretty specific here.

#19 CLR

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Posted 18 December 2005 - 17:13

A group of us are trying to get the 1 litre F2 cars out on track again.

There are four of us with cars at the moment, vis
Cooper BRM
Brabham SCA
Lotus 32 SCA
Brabham Honda, looking for the engine
(also a Lotus 35 SCA under restoration)
and my Lotus 35 with a part built SCA

Take a look at the website :
www.ClassicLotusRacer.com

For details and photos of the F2 engines

Kevin

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#20 David Birchall

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Posted 18 December 2005 - 19:10

Thank you for that Kevin--I have also passed it on to a friend who has a Lotus 17 and 20
David B

#21 T54

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Posted 18 December 2005 - 21:46

I have a Brabham BT15 SCA to add to the list.

Brabham Honda, looking for the engine


This will require the usual kneeling, joining hands and a small Iranian woven wool carpet.
Regards,

T54

#22 CLR

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Posted 19 December 2005 - 08:53

Excellent T54

I understand that Cosworth built around 69 SCA motors, so that those plus, Honda, Fiat, BRM, BMC, Renault and Alfa engines, all went into cars.
So that there must have been 80 or so 1 litre F2 cars built between 1964 and 1966.

I would very much like to find more of the cars. And for that matter the engines.

T54 can you let me have a photo and a few words please.

Kevin

#23 T54

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Posted 19 December 2005 - 15:11

The car has not been fired for at least 8 years. It is in near perfect condition and sits inside a museum in SoCal. It is plain dark red, history unknown. I will send a picture ASAP.
Regards,

T54

#24 rl1856

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Posted 19 December 2005 - 17:26

Here is 750mb scan:

Posted Image

Best,

Ross

#25 David Birchall

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Posted 19 December 2005 - 19:44

Nice and big! Thank you.
David B

#26 macoran

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Posted 19 December 2005 - 21:29

My thanks to JB Miltonian for scans of the complete article

#27 CLR

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Posted 23 December 2005 - 15:18

At the end of FIA 1 litre F2 series, a lot of the SCA engines were converted using Cosworth kits to suit the 1100cc SCCA American race series.

I understand that the drive to the ohc was changed from a train of 7 gears to part gear and part chain.
Does anyone know exactly how this was done; with drawings or photos ??
Kevin

#28 cedricselzer

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Posted 24 December 2005 - 17:50

Anyone looking for help with a SCA try Cosworth Engineering drawing office. I was stuck for some of the fuel injection drive on the SCA in a Lotus 44 I owned. They were more than helpful. In fact they sent me drawings. The car now lives in Japan. My engine was all gear driven. The crankshaft gear was on a quill shaft. This prevented the gears from chattering.

#29 David Birchall

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Posted 24 December 2005 - 19:06

Many thanks for the suggestion--it seems sort of obvious doesn't it? :blush:

#30 CLR

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Posted 26 December 2005 - 16:05

Yes it does sound obvious
It was the first place I looked.
Several weeks after I first contacted Cosworth 'Heritage', they promised the necessary information. I tried again.
It took a month or so before I got a proper reply

They no longer have the drawings.
Then a fellow Lotus / SCA owner visited them in November 05

The drawings are not now owned by Cosworth, but by VW
As such they are currently unavailable.

Hence by request via TNF


KDW

#31 macoran

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Posted 26 December 2005 - 16:20

The drawings are TOP SECRET now !!!
in a few years Mosley is going to shove through 4 in line bangers
for F! !!
VW will join F1 then ..... :lol:

#32 CLR

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Posted 27 December 2005 - 10:29

To digress
I think the downfall of modern motor racing is the stultification of design.

The lower levels seem dominated by one make nonsense - no design progress there.

Even F1 has got stuck with one type of engine, and regs so tightly controlled that the designers have little scope.

Today no one could do what Brabham, Cooper, Lotus, Lola, etc did.
They built a business based on technical innovation, and as one company fell behind a new one was ready to take its place. So you had both drivers and designers striving for success. No wonder that we all prefer to look back than forward.

KDW

#33 SJ Lambert

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Posted 13 November 2011 - 02:00

This example rebuilt by Tony Ingram looks impressive.

http://www.lotus7.co...SWORTH_SCA.html

#34 BRG

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Posted 13 November 2011 - 12:18

The drawings are TOP SECRET now !!!
in a few years Mosley is going to shove through 4 in line bangers
for F! !!
VW will join F1 then ..... :lol:

This was a remarkably perceptive prediction...for a jest!

#35 Gary Jarlson

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Posted 17 November 2011 - 17:59

At the end of FIA 1 litre F2 series, a lot of the SCA engines were converted using Cosworth kits to suit the 1100cc SCCA American race series.

I understand that the drive to the ohc was changed from a train of 7 gears to part gear and part chain.
Does anyone know exactly how this was done; with drawings or photos ??
Kevin


Kevin

I had two 1100cc injected engines for my BT28 (#103 and #106, IIRC) that were designated as SCCs. The cam drives contained no chains. Interestingly, the cutaway drawing in Post #24 doesn't seem to show the alternator on the SCC that was driven off the front of the cam.