Lotus Seven S3, difference LHD - RHD
Lotus Seven S3, difference LHD - RHD
Author
Discussion

GinG15

Original Poster:

501 posts

191 months

Tuesday 29th December 2015
quotequote all
can anyody tell me if the S3 chassis differed from LHD or RHD?

have seen several LHD cars where the diagonal-chassis-tube inside enginebay was still located on the right side.

i marked the tube on the following picture, which i found somewhere here on the forum..dont be confused, its a pic of a caterham chassis, not a S3:


i thought this chassis-tube is supporting the pedal-box?

but havent found a picture of a LHD S3 car where this chassis tube was located left side.

would mean, this tube isnt an indicator?


anonymous-user

74 months

Thursday 31st December 2015
quotequote all
From memory the single diagonal was always an issue and engine bay triangulation was not perfect, and ideally you wanted two diagonals, but the second could not pass the engine, hence the single diagonal is there on both LH and RH chassis as its orientation was dictated by the engine position, I know a few people with race cars, who have relocated the diagonal to move engines backwards.
There were differences LH to Rh until the universal chassis was introduced by Caterham (need to look at my book for the date on that) but I don't think the diagonal orientation is an indicator of LH RH let alone a definitive requirement.

Canuck7

64 posts

149 months

Monday 4th January 2016
quotequote all
I have a 1991 S3 LHD, it has a diagonal tube down both sides of the engine - makes it hard to get at the carb bolts. Later on you could unbolt them to get the engine in and out easier. No idea what modern car chassis are like. :-/

GinG15

Original Poster:

501 posts

191 months

Monday 4th January 2016
quotequote all
we are talking about a Lotus not a caterham!!!!

totally different cars!!!

Eric Mc

124,456 posts

285 months

Monday 4th January 2016
quotequote all
Depends on how old the Caterham you are talking about are. When Caterham put the Series 3 back into production around 1975, there wasn't an awful lot of difference (if any) with the last of the Lotus 7 Series 3.

I own a 1996 Caterham 7 Classic SE - which even 20 years on, had an awful lot of similar features to the Lotus 7 S3 - such as the position of the handbrake.

GinG15

Original Poster:

501 posts

191 months

Monday 4th January 2016
quotequote all
i am talking about a lotus NOT about a caterham!!!

Eric Mc

124,456 posts

285 months

Tuesday 5th January 2016
quotequote all
Not disputing that.

I am saying that older Caterhams are much closer to Lotus 7 Series 3s than later ones. In fact, if you go back far enough, they become almost indistinguishable.

The chassis were absolutely the same, because they came from the same manufacturer using the same jigs - Arch Motors.

GinG15

Original Poster:

501 posts

191 months

Tuesday 5th January 2016
quotequote all
but i´m still talking about a lotus....and a LHD...which makes things much rarer and maye more complicated....


by the way: the handbrake under the dsah is a very "nice" feature...as the handbrake lever doesnt interfere with the ellbow of the driver, like on most other sevens.

best solution for me is the lever besides the tunnel (passenger side), like done by sylva.

Eric Mc

124,456 posts

285 months

Tuesday 5th January 2016
quotequote all
My 1996 Classic has the footwell handbrake - impossible to use unless you have arms like a gorilla. Hill starts are fun smile

k20erham

375 posts

146 months

Wednesday 6th January 2016
quotequote all
I agree, with the above PITA, so much so that I relocated mine to the (normal) place in the tunnel, my chassis started life as a LHD has both braces in the engine bay,converted back to RHD by Arch and still has both top brace tubes

Farlig

633 posts

172 months

Wednesday 6th January 2016
quotequote all
Sheesh, can no one heel-n-toe any more...? I never use my handbrake on any car unless for parking on a very steep incline... I will apply it now and again to make sure it works, otherwise 2st or reverse for parking - better for the brakes, keeps pads / shoes off the braking surfaces yada yada...

GinG15

Original Poster:

501 posts

191 months

Wednesday 6th January 2016
quotequote all
STOP...this thread is about a lotus seven chassis...NOT about handbrake and driving!!

Eric Mc

124,456 posts

285 months

Wednesday 6th January 2016
quotequote all
So I gather. Ah well - no idle chat allowed.

mickrick

3,745 posts

193 months

Wednesday 6th January 2016
quotequote all
I thought a Caterham was a Lotus Seven? They're the same aren't they? I have the SV Lotus by the way.
Here's a picture of my Lotus SV, it has diagonals on both sides.


Edited by mickrick on Wednesday 6th January 15:49

mickrick

3,745 posts

193 months

Wednesday 6th January 2016
quotequote all
I don't have a parking brake yet. I did finish My parking brake in the disc bell project though smile
I can't heel and toe.

GinG15

Original Poster:

501 posts

191 months

Wednesday 6th January 2016
quotequote all
again a modern caterham chassis...that does not help at all here!!!


Hoonabator

597 posts

246 months

Wednesday 6th January 2016
quotequote all
You could try here http://www.pistonheads.com/gassing/forumGroup.asp?...

biggrin

I find big toe little toe better than heal and toe. tongue outdriving

Farlig

633 posts

172 months

Thursday 7th January 2016
quotequote all
GinG15 said:
we are talking about a Lotus not a caterham!!!!
totally different cars!!!
GinG15 said:
i am talking about a lotus NOT about a caterham!!!
GinG15 said:
STOP...this thread is about a lotus seven chassis...NOT about handbrake and driving!!
GinG15 said:
again a modern caterham chassis...that does not help at all here!!!
Dude, like just chill the fk out man... give up all the dictation, exclamation marks & attempts to control people - let the banter develop freely & you might just get the answer you want... Your responses so far are more likely to make people think twice about answering or offering you help...

Farlig

633 posts

172 months

Thursday 7th January 2016
quotequote all
In fact, seeing as you are just shooting folks down why don't you just go speak to Bruce at Arch.. A finer expert you will not find seeing as he built the chassis...

You have been given some some sound advice and pointers already that early Caterham S3 / Lotus S3 are more or less one in the same..

Eric Mc said:
Depends on how old the Caterham you are talking about are. When Caterham put the Series 3 back into production around 1975, there wasn't an awful lot of difference (if any) with the last of the Lotus 7 Series 3.
I own a 1996 Caterham 7 Classic SE - which even 20 years on, had an awful lot of similar features to the Lotus 7 S3 - such as the position of the handbrake.
Eric Mc said:
Not disputing that.
I am saying that older Caterhams are much closer to Lotus 7 Series 3s than later ones. In fact, if you go back far enough, they become almost indistinguishable.
The chassis were absolutely the same, because they came from the same manufacturer using the same jigs - Arch Motors.

Eric Mc

124,456 posts

285 months

Thursday 7th January 2016
quotequote all
Yep - I've bowed out on this one. Far too rude and obnoxious to warrant any help.