wolflyn 3 Posted June 18, 2014 Report Share Posted June 18, 2014 articlehttp://www.sportscars.tv/Newfiles/activeridelotus.html Quote 1981 Turbo Esprit Link to post Share on other sites
hopo 154 Posted June 18, 2014 Report Share Posted June 18, 2014 Quote Link to post Share on other sites
Simon350S 192 Posted June 18, 2014 Report Share Posted June 18, 2014 Where did it end up? I guess scrapped but that would be a shame Quote Chunky Lover Link to post Share on other sites
plumdeplakmuis 49 Posted June 18, 2014 Report Share Posted June 18, 2014 It was in the lobby at Lotus Engineering 2 years ago Quote VAN DER LEE Turbo Systems - www.vdlee.com Link to post Share on other sites
Vulcan Grey 251 Posted June 18, 2014 Report Share Posted June 18, 2014 They had another active suspension car called S.I.D. that looked more like a Stevens in Silver, but it had a different chassis construction and large portions of removable body. They almost sold it at auction years ago, and the guide had it valued at lik e£8k...!!! http://www.lotusespritworld.com/EOtherstuff/sid2.html http://www.lotusespritworld.com/EOtherstuff/sid.html Quote Travis Vulcan Grey 89SE My Lotus Photo and Projects Album Link to post Share on other sites
Simon350S 192 Posted June 19, 2014 Report Share Posted June 19, 2014 SID was cool. Someone shoulda bought it Quote Chunky Lover Link to post Share on other sites
Bazza 907 1,111 Posted June 19, 2014 Report Share Posted June 19, 2014 It was due to be sold at auction at Silverstone about 15-20 years ago along with the rest of the family silver but was withdrawn at the very last minute and so it's still at the Factory thankfully. Quote Link to post Share on other sites
Don.Hasi 65 Posted June 19, 2014 Report Share Posted June 19, 2014 And there was an Excel with the suspension too the car is still alive but the CPU is missing IIRC Quote Link to post Share on other sites
red vtec 203 Posted June 19, 2014 Report Share Posted June 19, 2014 I had a magazine in the 80's that had a big article on the lotus active suspension program, i'm sure its in the loft. if I find it i'll scan it on here. Quote Amateurs built the Ark Professionals built the Titanic "I haven't ridden in cars pulled by cows before" "Bullocks, Mr.Belcher" "No, I haven't, honestly" Link to post Share on other sites
GordonMasson 128 Posted June 20, 2014 Report Share Posted June 20, 2014 The black car was rescued by Brian Angus a few years back and tidied up a bit so it could be displayed in the office. Not sure how much is left intact. The windows are blacked out but at least Brian managed to recover it from under a tarpaulin and make it fit to be on display! Quote I've had a perfectly wonderful evening, but this wasn't it. Groucho Marx http://www.thelotusforums.com/latest-news/our-news/lotus-esprit-first-and-last/ http://www.corgi.co.uk/lotus-esprit-s1-chassis-0100g-the-first-production-esprit-signal-red.html Link to post Share on other sites
alan 37 Posted June 21, 2014 Report Share Posted June 21, 2014 The black car was rescued by Brian Angus a few years back and tidied up a bit so it could be displayed in the office. Not sure how much is left intact. The windows are blacked out but at least Brian managed to recover it from under a tarpaulin and make it fit to be on display! I may have had a little to do with this as I saw it in its sorry state and asked if I could buy it as it was too important to just be left to decay further. After a while I was told no, its not for sale, but will be restored. Quote Link to post Share on other sites
andydclements 810 Posted July 27, 2016 Report Share Posted July 27, 2016 Anybody interested in the other active suspension car, the Excel? Purchased some items from the current owner so I was shown the car today. The system is there, hydraulics etc, but no electronic controller, which I'm told is a relatively simple thing to replicate now although not so 20-ish years ago. It's a blue car, cloth interior, faded paint and saggy headlining but nothing too major. Quote Link to post Share on other sites
mik 391 Posted July 27, 2016 Report Share Posted July 27, 2016 Fast Lane did an article on the Excel back in the day. I must have read it a millionty times. Fascinated. Quote Link to post Share on other sites
Stuart Monument 792 Posted July 28, 2016 Report Share Posted July 28, 2016 On 20 June 2014 at 20:02, GordonMasson said: The black car was rescued by Brian Angus a few years back and tidied up a bit so it could be displayed in the office. Not sure how much is left intact. The windows are blacked out but at least Brian managed to recover it from under a tarpaulin and make it fit to be on display! Looked at it the other day and still looks pretty tidy. The interior is all there with some of the original testing equipment too. 1 Quote Link to post Share on other sites
JayEmm 1,273 Posted July 28, 2016 Report Share Posted July 28, 2016 What happened to the tech? I don't recall Lotus ever putting it into production, I'm guessing they may have sold the research to another manufacturer? Quote James Martin (JayEmm) Director of Photography & Car Enthusiast Follow my Lotus adventure online! www.jayemm.com Link to post Share on other sites
mik 391 Posted July 28, 2016 Report Share Posted July 28, 2016 Grapevine said it was too power hungry. This is isn't an official statement, but it would make sense. Quote Link to post Share on other sites
Andyww 1,302 Posted July 28, 2016 Report Share Posted July 28, 2016 On 27/07/2016 at 18:39, andydclements said: Anybody interested in the other active suspension car, the Excel? Purchased some items from the current owner so I was shown the car today. The system is there, hydraulics etc, but no electronic controller, which I'm told is a relatively simple thing to replicate now although not so 20-ish years ago. It's a blue car, cloth interior, faded paint and saggy headlining but nothing too major. I would have thought it would be a no-go without the controller. You would need to pretty much re-do much of Lotus research to be able to replicate the software in the controller. The value in the IP would have been in the controller which is likely why its not there. Quote Link to post Share on other sites
andydclements 810 Posted July 28, 2016 Report Share Posted July 28, 2016 Apparently a lot is done by the hydraulics, and what the electrics control is relatively simple. Quote Link to post Share on other sites
Andyww 1,302 Posted July 29, 2016 Report Share Posted July 29, 2016 Interesting, I kind of assumed this would be an ECU of sorts. Is there any documentation of the system anywhere? Quote Link to post Share on other sites
Royal 34 Posted July 29, 2016 Report Share Posted July 29, 2016 22 hours ago, JayEmm said: What happened to the tech? I don't recall Lotus ever putting it into production, I'm guessing they may have sold the research to another manufacturer? James, I'm sure in one of my Lotus books it states that the Active Suspension is sold under licence to other motor manufacturers worldwide. Quote Link to post Share on other sites
JayEmm 1,273 Posted July 29, 2016 Report Share Posted July 29, 2016 Just now, Royal said: James, I'm sure in one of my Lotus books it states that the Active Suspension is sold under licence to other motor manufacturers worldwide. Thanks Martin. It seems like far too good a tech for Lotus to have just canned it. Amazing to think this was 30+ years ago though, and I still can't think of many cars that really use it. Quote James Martin (JayEmm) Director of Photography & Car Enthusiast Follow my Lotus adventure online! www.jayemm.com Link to post Share on other sites
Royal 34 Posted July 29, 2016 Report Share Posted July 29, 2016 22 hours ago, JayEmm said: What happened to the tech? I don't recall Lotus ever putting it into production, I'm guessing they may have sold the research to another manufacturer? James, I'm sure in one of my Lotus books it states that the Active Suspension is sold under licence to other motor manufacturers worldwide. Ooops! re-posted by accident. James, I think BMW and Mercedes make use of it on their flagship models. I'll bet there are a few more besides. Quote Link to post Share on other sites
Steve V8 1,312 Posted July 29, 2016 Report Share Posted July 29, 2016 10 hours ago, Andyww said: Interesting, I kind of assumed this would be an ECU of sorts. Is there any documentation of the system anywhere? I imagine a cross between an ECU and an ABS system, the size of a suitcase with at least 4 electronically operated actuators/valves per corner. To create a system capable of keeping the car flat through corners under vastly differing circumstances would be ROCKET SCIENCE. So if you're thinking about taking your Esprit ECU down to Powertech to be chipped to work the suspension, think again Quote Link to post Share on other sites
andydclements 810 Posted July 29, 2016 Report Share Posted July 29, 2016 Apparently, the old shoebox sized equipment is now possible to replace with a RaspberryPi and some coding, along with a few other components. Quote Link to post Share on other sites
JayEmm 1,273 Posted July 29, 2016 Report Share Posted July 29, 2016 I expect like running an old f1 car, the issue is not in finding a 1980s spec ECU but in finding a computer that can talk to a 1980s ECU! Quote James Martin (JayEmm) Director of Photography & Car Enthusiast Follow my Lotus adventure online! www.jayemm.com Link to post Share on other sites
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