Jonathan Kay

Set of funny bits. You can jury rig many things but not some of these. Jonathan

Some gas turbines have or had water/meth injection systems. Notably the Pegasus in the Harrier was one so the aircraft could commit to stable VTOL when the OAT was outside the normal parameters for safe operation or the weapon load dictated. Also used to augment STOL when at maximum AUW. And early 707s, 747s and many others. IIRC in Airport Hailey said of a 747 that at take-off there was more thrust from the steam power than the "ordinary" turbine. Jonathan

... but aircraft have been flying around with diesels fitted for some time. That's why I said: "... much like the final throes of high-powered piston engines in aircraft". At lower powers there's lots of clever options. One of the limiting factor with ICE engined aircraft is prop tip speed going sonic. The concept of reduction gearing was known to the Wright brothers. And Rolls-Royce had it working very well in the Eagle in 1915. After that it got caught up in one of the most interesting technology battles of all time: radial vs inline, water + air vs air cooling, ± reduction gearing, and the different national decisions made and why. And it relates directly to some of those clever options at the low end, including the extraordinary performance of the Porsche 911 engine compared to those with an aircraft heritage, but it needed a lot of reduction gearing, and the only Lotus aircraft engine, which avoided that by driving the airscrew off the camshaft. http://stargazer2006.online.fr/aircraft/thumbs/lotusengine01.jpg Jonathan

:-) Doh! Idiocy deleted. Jonathan

Re trailers, I meant the PRG MiniSporter ... forgot the name. To my surprise I got a lot more hits from the built-in search than from Google: https://www.lotus7.club/search/site/MINISPORTER. Jonathan

Thanks. Are you using Rain-X or similar? Seems to make more difference in the Seven than in other four-wheelers. Jonathan

Edited. If you want the original pics I can send them by email? Thanks for the offer but rays ipsa loquitur. Jonathan

Thanks Circa 4 Amps on full beam! What were the previous lamps... ? I'll then turn that into engine power unleashed... :-) Jonathan

I assume that the best way to reproduce the current alignment is to park the car 10 ft. away from my garage wall and mark in chalk on the wall where dipped beams are and then adjust the new lights to the same positions? That should work fine as a starting point, although I'd probably use main rather than dip. Then check them asap against the back of the car in front when you're in traffic: there are far too many set too high. Please could you take some photos of the old and new beam pattern, main and dip, both against the wall and down the lane. There are now lots of headlamp options out there and the more evidence the better. Thanks. Happy New Year Jonathan

Might be this, but there is some variation, and at least one undocumented layout: Happy New Year Jonathan

Glad those are sorted. Any more information on what was wrong with the speedometer? Motorways: You've got noise protection, anything else that might make it less unenjoyable... position, pedal position, mirror coverage, lights that make you more obvious, in-car entertainment? Trailers: Covered trailers from the archives. Happy New Year Jonathan

Welcome and Happy New Year. What Stephen says. Have you found your way around the relevant books, and especially Weale? (Other prices might be available!) Jonathan

Not used the site before and could not find a search bar... Can you see the following near the top of the page? There's also a Search page: https://www.lotus7.club/google-search-2. But I use site-restricted external Google searching, as in the second link in my Signature below. That gives hits such as: https://www.google.com/search?q=site:lotus7.club+Stack+oil Jonathan

Welcome, and Happy New Year. Have you already got: The appropriate Caterham wiring diagram?The appropriate Stack manual?If not please send me a Private Message with your email address and details of the Seven. Jonathan

As the silencer has no lambda sensor (they are in the collector and the catalyst), I think it won´t affect to the ECU and the smokes at the MOT test (in Spain called ITV), am I right or will it affect?. What are the test limits for emissions, and your most recent values? Jonathan

The 4 stroke petrol piston engine has his limitations regarding materials used and unless the came up with materials that can withstand higher temperatures it will never be an effective engine... I'm expecting further improvements such as Mazda's, and some of them may be made in large numbers. But it feels very much like the final throes of high-powered piston engines in aircraft... tweak after tweak after tweak while the future lay with gas turbines. But in this case electric motors. Jonathan

Could you email them to me so that I can upload them, please? Private Message sent. Jonathan

I'd put my money on that. But it might be optimal to have a quick look at the wiring at the dash switch first. Have you got the colours of the wires of interest? Any recent work nearby and is everything else operating normally? Jonathan

That would be very kind, especially as it involves reworking. Any chance of some shots down the lane as well as up against the wall? Interesting legislation link. It only refers to HID not LED. That's how I read it. Jonathan

Pete: Have you got a photo showing the comparative beam intensity and pattern, please? Thanks. ... Most cars with OEM LEDs have auto levelling - not sure if this is a legal requirement? I don't think so: the current guidance. ... Happy New Year Jonathan

Yes, there's an enormous difference between ICEs that are inflexibly connected to the road surface and those that can run at some sort of other optimum. I expected that to leave a big niche for range-extenders but that's rapidly shrinking because of the progress on battery-only vehicles. The last time I looked Ilmor were thinking of this in a bike... Jonathan

BC discussion from 2015 with some performance data... have they made any progress? Jonathan

I'd start with Redline, but IIRC the original is identified somewhere in the archives. Jonathan

There seem to be various different materials... have you already got an edge lifted? Jonathan