Discussion
Richard
No cutting up required to fit either Tie Bar:-
The one in front of Radiator fits onto the protruding bosses [1 either side]
The one directly in front of the X Flow engine [shown in photo] fits onto the Upper & lower wishbone bolts [the long bolts] which go through both wishbones [and top shock absorber mount].
>
My zetec is standard spec with Throttle bodies and emerald ecu it [gives a Real & genuine 160BHP - it feels like it too!]. Originally I had planned to mod the engine for 200BHP+ but after initial installation and driving I realised that my genuine 160BHP was more than ample. The cars original 1700Xflow with a reputed 135 BHP was a totally crap, IMO the X flow maybe had 100BHP but was really puny compared to the Zetec. [I guess those 100 horses were tiny Shetland ponies
]
The X flow did 21MPG - Zetec does 35-37MPG
My first S4 Had a Lotus TC engine it also did 21-22MPG.
No cutting up required to fit either Tie Bar:-
The one in front of Radiator fits onto the protruding bosses [1 either side]
The one directly in front of the X Flow engine [shown in photo] fits onto the Upper & lower wishbone bolts [the long bolts] which go through both wishbones [and top shock absorber mount].
>
My zetec is standard spec with Throttle bodies and emerald ecu it [gives a Real & genuine 160BHP - it feels like it too!]. Originally I had planned to mod the engine for 200BHP+ but after initial installation and driving I realised that my genuine 160BHP was more than ample. The cars original 1700Xflow with a reputed 135 BHP was a totally crap, IMO the X flow maybe had 100BHP but was really puny compared to the Zetec. [I guess those 100 horses were tiny Shetland ponies
] The X flow did 21MPG - Zetec does 35-37MPG
My first S4 Had a Lotus TC engine it also did 21-22MPG.
richardl7S4 said:
Hi Rene
No, for the reasons we discussed.
Mick at Redline said he was going and expected to see some S4 s there.
Did any S4 owners go to Donnington ??? ..............or anyone else following this thread ???
Be interesting to know if the S4 was represented.
Unfortunately I did not find the time to visit the 60th at Donnington, but there had been lots of photos and films and partly live cams on facebook - so I could "feel" the festival. From the S4 point of view, only 6 S4s were there as I found out. They get rarer every time. The situation was slightly different 10 years ago, where I had been.No, for the reasons we discussed.
Mick at Redline said he was going and expected to see some S4 s there.
Did any S4 owners go to Donnington ??? ..............or anyone else following this thread ???
Be interesting to know if the S4 was represented.
Cheers, Hajo
LuckesGTV6 said:
Hi Guys,
Just trying to help clear up some points on the Seven Series 4 thread.
Firstly, my credentials:-
In 1969 I had just been promoted to Senior Design Engineer at Components and the Type 60 (7 Series 4) was my first project after completing the work I had done with Dave Baldwin on the S3 (and other projects).
I was responsible for the 'Package design' of the vehicle (body layout and all mechanical components including weather protection & hood). The body design was completed by Alan Barrett who also made the excellent body moulds for the self-coloured shells (Mirror Finish, no filler possible).
I'd like to correct a misleading statement in Graham Arnolds book on the Seven, where he stated that Dave Baldwin designed the vehicle, this has caused much confusion, and annoyance!
Dave Baldwin was involved with the S4 insofar as his advice was sought on a couple of occasions and also driving the prototype twincam to a F3? race in Germany where he sneaked off on a jolly with Emerson Fittipaldi who gave it a blast around the Nordschleife. Dave said that Emerson was quite impressed, particularly as it was on road tyres.
As far as I know Chapman could have been aware that the car was underway as a type number had been allocated and a suitable section of the workshop had been partitioned and was under lock & key (3 keyholders only = M.D.W.W, A.B and self).
Chapman usually trawled the drawing boards 'out of hours' but he was a bit preoccupied at this time and also I had been asked to keep any 'evidence' off my board.
The project lead time was also extremely short, the layout package and running 'skate' design started early July 1969 and 10 cars were required by Jan 7th 1970, so this could explain his surprise at the presentation!
Although there were 2 development cars, yellow & blue, available at the time I thought that only one car was used, a red 1600cc pre production car. (might be a case of brain fag though)
It's a shame that innacuracies creep in over time. Perhaps the above will help put a bit of the record straight?
Picture is of the quarter scale model made to my original layout drawings. Note the non-production rear wing shape to take upright elliptical rootes group rear lights.
Hi there, - I would be very happy to come in contact with you, - especially about the 1/4 scale model. I have some interesting photos about this. I am "running" the S4 register. Kind regards, HajoJust trying to help clear up some points on the Seven Series 4 thread.
Firstly, my credentials:-
In 1969 I had just been promoted to Senior Design Engineer at Components and the Type 60 (7 Series 4) was my first project after completing the work I had done with Dave Baldwin on the S3 (and other projects).
I was responsible for the 'Package design' of the vehicle (body layout and all mechanical components including weather protection & hood). The body design was completed by Alan Barrett who also made the excellent body moulds for the self-coloured shells (Mirror Finish, no filler possible).
I'd like to correct a misleading statement in Graham Arnolds book on the Seven, where he stated that Dave Baldwin designed the vehicle, this has caused much confusion, and annoyance!
Dave Baldwin was involved with the S4 insofar as his advice was sought on a couple of occasions and also driving the prototype twincam to a F3? race in Germany where he sneaked off on a jolly with Emerson Fittipaldi who gave it a blast around the Nordschleife. Dave said that Emerson was quite impressed, particularly as it was on road tyres.
As far as I know Chapman could have been aware that the car was underway as a type number had been allocated and a suitable section of the workshop had been partitioned and was under lock & key (3 keyholders only = M.D.W.W, A.B and self).
Chapman usually trawled the drawing boards 'out of hours' but he was a bit preoccupied at this time and also I had been asked to keep any 'evidence' off my board.
The project lead time was also extremely short, the layout package and running 'skate' design started early July 1969 and 10 cars were required by Jan 7th 1970, so this could explain his surprise at the presentation!
Although there were 2 development cars, yellow & blue, available at the time I thought that only one car was used, a red 1600cc pre production car. (might be a case of brain fag though)
It's a shame that innacuracies creep in over time. Perhaps the above will help put a bit of the record straight?
Picture is of the quarter scale model made to my original layout drawings. Note the non-production rear wing shape to take upright elliptical rootes group rear lights.
Edited by LuckesGTV6 on Tuesday 21st February 17:08
[quote=7s4whatelse][quote=LuckesGTV6]Hi Guys,
Just trying to help clear up some points on the Seven Series 4 thread.
Firstly, my credentials:-
In 1969 I had just been promoted to Senior Design Engineer at Components and the Type 60 (7 Series 4) was my first project after completing the work I had done with Dave Baldwin on the S3 (and other projects).
I was responsible for the 'Package design' of the vehicle (body layout and all mechanical components including weather protection & hood). The body design was completed by Alan Barrett who also made the excellent body moulds for the self-coloured shells (Mirror Finish, no filler possible).
I'd like to correct a misleading statement in Graham Arnolds book on the Seven, where he stated that Dave Baldwin designed the vehicle, this has caused much confusion, and annoyance!
Dave Baldwin was involved with the S4 insofar as his advice was sought on a couple of occasions and also driving the prototype twincam to a F3? race in Germany where he sneaked off on a jolly with Emerson Fittipaldi who gave it a blast around the Nordschleife. Dave said that Emerson was quite impressed, particularly as it was on road tyres.
As far as I know Chapman could have been aware that the car was underway as a type number had been allocated and a suitable section of the workshop had been partitioned and was under lock & key (3 keyholders only = M.D.W.W, A.B and self).
Chapman usually trawled the drawing boards 'out of hours' but he was a bit preoccupied at this time and also I had been asked to keep any 'evidence' off my board.
The project lead time was also extremely short, the layout package and running 'skate' design started early July 1969 and 10 cars were required by Jan 7th 1970, so this could explain his surprise at the presentation!
Although there were 2 development cars, yellow & blue, available at the time I thought that only one car was used, a red 1600cc pre production car. (might be a case of brain fag though)
From my records: 1st ever was the yellow "developement car", followed by the TC gold "Show car", Then the red "Road Test car" March 10 ´70, GT and 4th the 2nd development car "Players No6" April 1st, TC
By the way.... Time was running fast thoose days - see pic of the drawing date
Just trying to help clear up some points on the Seven Series 4 thread.
Firstly, my credentials:-
In 1969 I had just been promoted to Senior Design Engineer at Components and the Type 60 (7 Series 4) was my first project after completing the work I had done with Dave Baldwin on the S3 (and other projects).
I was responsible for the 'Package design' of the vehicle (body layout and all mechanical components including weather protection & hood). The body design was completed by Alan Barrett who also made the excellent body moulds for the self-coloured shells (Mirror Finish, no filler possible).
I'd like to correct a misleading statement in Graham Arnolds book on the Seven, where he stated that Dave Baldwin designed the vehicle, this has caused much confusion, and annoyance!
Dave Baldwin was involved with the S4 insofar as his advice was sought on a couple of occasions and also driving the prototype twincam to a F3? race in Germany where he sneaked off on a jolly with Emerson Fittipaldi who gave it a blast around the Nordschleife. Dave said that Emerson was quite impressed, particularly as it was on road tyres.
As far as I know Chapman could have been aware that the car was underway as a type number had been allocated and a suitable section of the workshop had been partitioned and was under lock & key (3 keyholders only = M.D.W.W, A.B and self).
Chapman usually trawled the drawing boards 'out of hours' but he was a bit preoccupied at this time and also I had been asked to keep any 'evidence' off my board.
The project lead time was also extremely short, the layout package and running 'skate' design started early July 1969 and 10 cars were required by Jan 7th 1970, so this could explain his surprise at the presentation!
Although there were 2 development cars, yellow & blue, available at the time I thought that only one car was used, a red 1600cc pre production car. (might be a case of brain fag though)
From my records: 1st ever was the yellow "developement car", followed by the TC gold "Show car", Then the red "Road Test car" March 10 ´70, GT and 4th the 2nd development car "Players No6" April 1st, TC
By the way.... Time was running fast thoose days - see pic of the drawing date
hi Hajo I thought you had sold the S4 I havent seen you post on here for awhile.
Good to see some old photo's - I hadn't known about WVF There's no record for it at DVLA, also PER2J is not a very early car it was originally Black and not registered till Jan 1971 hence the 'J' reg.
Both Brian Sopers car CMD [registered 20th may 1970 & the yellow BYL car [registered 2june 1970] are cosiderably earlier hence their H registrations I also have another 2 'H' reg cars, though their precise details are eluding me at the moment
Surprised you never went to 60th - Mal said he thought you'd be there and good for some pictures for this thread
Rene
Good to see some old photo's - I hadn't known about WVF There's no record for it at DVLA, also PER2J is not a very early car it was originally Black and not registered till Jan 1971 hence the 'J' reg.
Both Brian Sopers car CMD [registered 20th may 1970 & the yellow BYL car [registered 2june 1970] are cosiderably earlier hence their H registrations I also have another 2 'H' reg cars, though their precise details are eluding me at the moment
Surprised you never went to 60th - Mal said he thought you'd be there and good for some pictures for this thread
Rene
Hajo,
Welcome back to posting on the S4 Seven site. Hope all is well with you. Are you still making S4 parts? If so interested, let me know. I would think S4 history would make several articles in Lotus Publications. In the USA, Lotus ReMarque. Once again, look forward to reading your posts.
Steve V. USA
Welcome back to posting on the S4 Seven site. Hope all is well with you. Are you still making S4 parts? If so interested, let me know. I would think S4 history would make several articles in Lotus Publications. In the USA, Lotus ReMarque. Once again, look forward to reading your posts.
Steve V. USA
Dear Rene,
- after 25 years it is not possible to sell a S4 as it got a part of me .....
The only system to identify our cars more safely are following the chassis numbers and not the registration numbers, Cars might or definitely are been reregistered. One of the very first cars was "rebuild" many years later and went to the east where only the chassis plate is old.... My car for example is earlier than the well known CMD, but as a kit was finished and registered later. Interesting fact that the development and test cars were later sold to the public.
Having seen all the photos and films from the 60th - it realy was a great Cater*** event and it had a dozend of historic cars. Funny: I even spotted D. Harry´s car!
I did my personal Portmeirion and Arch 9-days-tour, finalizing with the 50th.
We will meet again!
- after 25 years it is not possible to sell a S4 as it got a part of me .....
The only system to identify our cars more safely are following the chassis numbers and not the registration numbers, Cars might or definitely are been reregistered. One of the very first cars was "rebuild" many years later and went to the east where only the chassis plate is old.... My car for example is earlier than the well known CMD, but as a kit was finished and registered later. Interesting fact that the development and test cars were later sold to the public.
Having seen all the photos and films from the 60th - it realy was a great Cater*** event and it had a dozend of historic cars. Funny: I even spotted D. Harry´s car!
I did my personal Portmeirion and Arch 9-days-tour, finalizing with the 50th.
We will meet again!
rene7 said:
hi Hajo I thought you had sold the S4 I havent seen you post on here for awhile.
Good to see some old photo's - I hadn't known about WVF There's no record for it at DVLA, also PER2J is not a very early car it was originally Black and not registered till Jan 1971 hence the 'J' reg.
Both Brian Sopers car CMD [registered 20th may 1970 & the yellow BYL car [registered 2june 1970] are cosiderably earlier hence their H registrations I also have another 2 'H' reg cars, though their precise details are eluding me at the moment
Surprised you never went to 60th - Mal said he thought you'd be there and good for some pictures for this thread
Rene
Good to see some old photo's - I hadn't known about WVF There's no record for it at DVLA, also PER2J is not a very early car it was originally Black and not registered till Jan 1971 hence the 'J' reg.
Both Brian Sopers car CMD [registered 20th may 1970 & the yellow BYL car [registered 2june 1970] are cosiderably earlier hence their H registrations I also have another 2 'H' reg cars, though their precise details are eluding me at the moment
Surprised you never went to 60th - Mal said he thought you'd be there and good for some pictures for this thread
Rene
Hi Steve,
- thanks a lot for your kind words! I´ve send you a PM
Cheers, Hajo
- thanks a lot for your kind words! I´ve send you a PM
Cheers, Hajo
mrvman said:
Hajo,
Welcome back to posting on the S4 Seven site. Hope all is well with you. Are you still making S4 parts? If so interested, let me know. I would think S4 history would make several articles in Lotus Publications. In the USA, Lotus ReMarque. Once again, look forward to reading your posts.
Steve V. USA
Welcome back to posting on the S4 Seven site. Hope all is well with you. Are you still making S4 parts? If so interested, let me know. I would think S4 history would make several articles in Lotus Publications. In the USA, Lotus ReMarque. Once again, look forward to reading your posts.
Steve V. USA
For your interest, here is a S4 assembled in New Zealand and currently for sale, approx £27,000. Any comments, not that I'm buying but this shape is growing on me since reading this thread.
https://www.trademe.co.nz/1376563970
https://www.trademe.co.nz/1376563970
advert said:
1975 Lotus Super 7 Twin cam MK4
Number 41 out of 95 ever made in New Zealand by Steel Brothers Limited in Christchurch.
Steel Brothers Limited in Christchurch assembled Lotus Seven Series 4s until March 1979 when the last of the 95 kits provided by Lotus was used up.
Original 34,366 miles.
Stunning factory survivor condition.
Super rare.
Lotus big valve 1.6 motor.
Number 41 out of 95 ever made in New Zealand by Steel Brothers Limited in Christchurch.
Steel Brothers Limited in Christchurch assembled Lotus Seven Series 4s until March 1979 when the last of the 95 kits provided by Lotus was used up.
Original 34,366 miles.
Stunning factory survivor condition.
Super rare.
Lotus big valve 1.6 motor.
7s4whatelse said:
Unfortunately I did not find the time to visit the 60th at Donnington, but there had been lots of photos and films and partly live cams on facebook - so I could "feel" the festival. From the S4 point of view, only 6 S4s were there as I found out. They get rarer every time. The situation was slightly different 10 years ago, where I had been.
Cheers, Hajo
I just checked the 'How Many Left' site and found that there are 30 licensed with 19 on SORN in the UK.Cheers, Hajo
This doesn't tell the whole story as mine is DVLA registered but neither SORNed nor licensed. Their website shows it as 'Untaxed. Tax Due 1 September 1980' and 'No MOT Details Held'. It's more than possible that there are quite a few S4s in similar limbo awaiting resurrection.
Regards, Mick
When I count my UK S4s .... the number is very close to 70! So the mentioned site is not telling all stories
Cheers, Hajo
Cheers, Hajo
Mick O'Malley said:
I just checked the 'How Many Left' site and found that there are 30 licensed with 19 on SORN in the UK.
This doesn't tell the whole story as mine is DVLA registered but neither SORNed nor licensed. Their website shows it as 'Untaxed. Tax Due 1 September 1980' and 'No MOT Details Held'. It's more than possible that there are quite a few S4s in similar limbo awaiting resurrection.
Regards, Mick
This doesn't tell the whole story as mine is DVLA registered but neither SORNed nor licensed. Their website shows it as 'Untaxed. Tax Due 1 September 1980' and 'No MOT Details Held'. It's more than possible that there are quite a few S4s in similar limbo awaiting resurrection.
Regards, Mick
Mick o malley
Hajo's correct the dvla site only lists a few as S4s, many are listed as Lotus 7s. I have UK reg numbers of over 60 UK S4's - 27are currently UK road registered[taxed & MOTd] the rest on dvla are sorned or as you said listed when the last tax run out.
And hey there's plenty rusting in barns for us to discover I'm sure
........................................................................................................................................................
Here's a pic of all the S4's at the 2007 50th get together - I saw only 5, If Hajo say's there were 6 at 60th then we are +1.
Be good too see a photo of them - anybody interested in S4's go to the 60th???
No-one I know did, guess it was the boring 3 days in a field feeling
>
>
Yellow car is Brian Soper's
Red car by tent is Mal's
Swiss car is Roger Savare's [hope i spelt his name right!]
Blue/silver car and Blue car I don't know the owners - are you on here?? Let us know
Hajo's correct the dvla site only lists a few as S4s, many are listed as Lotus 7s. I have UK reg numbers of over 60 UK S4's - 27are currently UK road registered[taxed & MOTd] the rest on dvla are sorned or as you said listed when the last tax run out.
And hey there's plenty rusting in barns for us to discover I'm sure
........................................................................................................................................................
Here's a pic of all the S4's at the 2007 50th get together - I saw only 5, If Hajo say's there were 6 at 60th then we are +1.
Be good too see a photo of them - anybody interested in S4's go to the 60th???
No-one I know did, guess it was the boring 3 days in a field feeling
>
>
Yellow car is Brian Soper's
Red car by tent is Mal's
Swiss car is Roger Savare's [hope i spelt his name right!]
Blue/silver car and Blue car I don't know the owners - are you on here?? Let us know
Richard,
- to add a Quaife unit (as I did some years ago) is a straight forward procedere, done in 3-4 hours. Main steps: Remove propshaft and half axles, drain oil and remove diff housing. Put crown wheel to ATB with new bolts, advisible new bearings, then adjust like standard diff, test adjustment with "engineers blue" and complete in reverse order.
After the mentioned chassis stiffening by the 2 bars, this is the best handling improvement IMHO you could do with the S4.
One year later I did nearly the same again then exchanging the diff housing to the Alu replacement which reduced the unsprung weight of the axle a lot.
In comparison to the LSD units from the early days using clutch plates, the ATB with its gear system acts totally smooth and absolutely satisfying with our lightweight model and does not need any special (further) maintenance or special oil.
Hajo
You mentioned roll bars on your car that are not original. I thought all S4s had the front roll bar but an option being the rear brace sat in the boot floor? The limited slip diff must make a big difference to taming the rear end, but after buying the Quaife unit what's involved with fitting?
Hope my post wakes up a few more S4 owners!
Richard
[/quote]
- to add a Quaife unit (as I did some years ago) is a straight forward procedere, done in 3-4 hours. Main steps: Remove propshaft and half axles, drain oil and remove diff housing. Put crown wheel to ATB with new bolts, advisible new bearings, then adjust like standard diff, test adjustment with "engineers blue" and complete in reverse order.
After the mentioned chassis stiffening by the 2 bars, this is the best handling improvement IMHO you could do with the S4.
One year later I did nearly the same again then exchanging the diff housing to the Alu replacement which reduced the unsprung weight of the axle a lot.
In comparison to the LSD units from the early days using clutch plates, the ATB with its gear system acts totally smooth and absolutely satisfying with our lightweight model and does not need any special (further) maintenance or special oil.
Hajo
You mentioned roll bars on your car that are not original. I thought all S4s had the front roll bar but an option being the rear brace sat in the boot floor? The limited slip diff must make a big difference to taming the rear end, but after buying the Quaife unit what's involved with fitting?
Hope my post wakes up a few more S4 owners!
Richard
[/quote]
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