Archie Procter

PS. I should have said that I shall be gone from here as from tonight (not renewing membership), so if you want chapter and verse on cage history then do a search in "for sale" and "techtalk" and you'll find my various witterings about what cage variants are out there HTH

Yes it's an imperial and yes the cage needs to match. The good news is you can use any of the Dedion Roadsport cages (including the Caged ones) up to 2006 model year, which gives you a lot of options. Including the Safety Devices tall cage. The bad news is you're unlikely to have a lowered floor so you've got to watch your head/helmet clearance with a standard height cage. If you're looking at a SLR cage the chassis may well require modifying in a minor way at the front mounting points - I believe it's a simple enough job at Arch Motors though.

I have a metric one - I believe some have made them fit in the past - a search of techtalk might help

I have a metric one - I believe some have made them fit imperial chassis in the past

Agree just swapping the ECU for the non-SS one won't fix it, it may run badly/worse as it's not matched with the SS cams so timing could be shot. Not that I've tried it though... It may be mechanical or indeed a sensor issue as mentioned above - for the latter you need a Rover ECU expert who can plug their kit into the diagnostic plug and tell you what it thinks it's seeing, as well as whether the ECU itself is functioning correctly. If you know someone else with a SS ECU you should be able just to swap them over (you'll probably need to swap the 5AS and plippers too) and see if it still does it. I bet it would be exactly the same as ECUs only fail very rarely - although it does happen. If you need an expert's advice I know one in the south midlands - my email address is in my profile.

No, a newer one with a private plate

Still grey And it was a silver SLK, yes

03 plate SV, what looked like a S4 Lotus, and an ex-Grads 07-plate ali one driving round the paddock. Plus the racecars of course

99% sure it was him, driving a Merc SLK with very distinctive private plate on the M3. Got off at the same junction as me (Camberley) then exchanged some words with a lad in a car next to him at the lights off the mway. Probably along the lines of "are you Damon Hill?" "Yes" A quick google search suggests he lives in Chiddingfold, near Godalming, so that would definitely be the right M3 junction. Normally you might take the A3 (jn 10) but the whole M25 that way was knackered, perhaps hence Damon's alternative route?

Agree with Charles. The little water clearance you would get running them forwards would be lost completely, and Silverstone's surface is not exactly grippy in the wet at the best of times! In the dry I have run them both ways round and found it made bu99er all difference to lap times. I haven't heard George recommend running the fronts backwards in the dry - and almost no Grads racers do, unless they're trying to balance wear and thus prolong the life of a race set (of which we are limited to 3 a season). However I will ask him when I see him next at one of our meetings.

yhm

Over tightened air filter on a plastic TB had a very definite effect on my car, the TB plastic became so eliptical the butterfly wouldn't close fully which caused a tickover of over 2k rpm. wow, I've never heard of an over-tightened air filter before, if anything mine was more in danger of coming off as the jubilee clip was useless! The IACV (also known as stepper motor - as it controls the revs up and down in a series of steps) can be blanked off by taping over it or simply removed, you'll need to manage the idle on either the idle screw or (it it's stuck, which is highly likely) throttle pedal. It will start like a dog as well. IACV bypassing is really only for diagnostics and emergencies! Worst case scenario is that it's both the IACV AND something else, like one of the sensors telling the ECU the wrong information, a fault somewhere in the wiring, or even something simple like a bad earth can cause no end of trouble. Rover 25s don't seem to have the same sorts of problems, but if you look at the wiring installation in a Caterham it is much more stressed/pulled on cheap thin wires, and in any case Rovers are usually driven by old men in hats, and very rarely over 30mph 😬

There are some threads in the archive about this - IIRC (and don't quote me, it's been a few years) it's basically jack it up as high as you can, fill it to the drain/fill plug absolute limit, then add another 0.5-1 litre through the breather

or email me (address in profile) for details of someone who has the software and expertise to read these things in detail. I have some sympathy, I chased things round for ages before getting to the root of my issues.

I had an even simpler system with no fancy parts or electrickery A funnel taped to the wing, a long thin tube, and just bugger off and let it go in during the course of the afternoon 😬