1850 twin cam?

[forestman]

Would any members have any info regarding anyone using a lotus cortina Mk1 or mk2 for rallying with an 1800cc or 1850cc twin cam engine before the end of 1967,or in any motorsport event.

 

[Seedy]

Would any members have any info regarding anyone using a lotus cortina Mk1 or mk2 for rallying with an 1800cc or 1850cc twin cam engine before the end of 1967,or in any motorsport event.

I admire your hopes and dreams, but I think you're gunna be stuck with a standard TC at that date! Your best option would be fuel injection? :twisted:

 

[Lashman]

Hi forestman, Welcome to the forum.
As Clive say's I don't think anyone went that large on capacity that early.
Are you looking for reasons of homologation?

 

[An old racer.........]

Would any members have any info regarding anyone using a lotus cortina Mk1 or mk2 for rallying with an 1800cc or 1850cc twin cam engine before the end of 1967,or in any motorsport event.

Hi Forestman,

We did build an engine of that order circa 1970 is-h ( the little grey cell's are not so good these days, so things have to be a little.. is'h )

It began as a push rod 1500. bored to 1650 + 60th. = 1700 + 1600 stroker crank and rods, so roughly 1800. I raced it, maybe twice? in an Anglia. Sold it to a chap who as I understand it, modified the pistons & built it into a TC then raced it in a power boat.

It was something we dabbled about with, developing in odd moments !

I seem to remember also, that it was sleeved & a sleeve went into the oil gallery that passes betwixt the middle cylinders. We cured that by closing that oil way & running a pipe around the outside of the engine, feeding the oil back into the other side, it was test run dry sump at one time.

Mervyn.

 

[martin k]

i have a 701m L block with 85mm pistons and the steel crank is ground -60 what would the capacity be ? came out of a race anglia once upon a time.

 

[walone]

I know this is a VERY old post but I remember there was a Tuning/Racing firm in Masons Avenue, Harrow who used to race Anglias with 1600cc blocks bored out to what would be 1650cc if it was a 1500 block, I think that made them 1760cc. Can't remember the but they were quite successful in racing.

 

[Bertil]

In a 1500 and TC that originally has 72,75 stroke 85 mm will give 1650 cc. With a 1600 cc crank (1600 crossflow) which has 77,62 mm stroke 85 mm will give 1760 cc.

82,55 bore (original TC) with original 1500/TC stroke 72,75 will give 1558, 83,5 bore 1594cc, 85 bore 1650cc.

83,5 bore and 77,62 stroke will give 1700 cc, 85 bore 1760cc.