Andy135

I've had a bronze saddle from Burton. Was fine and clipped gently into place.

Harder wearing, slightly more direct/positive feel to the gear changes, can feel a bit notchy at first but only takes a few hundred gear changes to wear in.

35 minutes ago, Mike Terry said:

Yes I have with what looks like a heavy metal cylinder about 30mm in length with wires attached. Ok, so that is where mechanical motion is converted into electrical. From a distance, that does not look easy to get at and not something easy to take apart to check magnet? 

Sounds like a hall effect speed sensor. Where is it located on the car? Can you post a picture? 

5 hours ago, Iain McCallum said:

Forgot to mention it is a Roadsport 150.

Thanks. That's helpful. Mine's a 150 too but doesn't have any stickers or info like yours. I heard that Caterham grind off a part of the engine to make it fit in the 7, and as bad luck would have it the part they remove is the part with the engine code on it.

Yep, should have said. Fixed cam. There seem to be a variety of codes across the fixed cam engines. Not clear if they only relate to date of manufacture or to something more significant such as design revisions etc.

Anyone know what engine code/engine number Caterham used for their run of Sigma engines? I'm tempted to find and recondition an engine from a breaker as a project but curious to know which engine code to look for.

On 06/03/2024 at 10:44, graearea said:

this has been a bit of a marathon.

turns out I figured out how to make brackets for the sidescreens that take the adapters. this means you can use the same mirrors attached to the adapter with minimum fuss switching between sidescreen and windscreen.

I'm gonna test them this week at Bedford trackday and then add them to my offerings.

pictures will follow

Interested in this option as changing the mirrors over when removing the screens is currently a faff.

Mine was from Burton Power. Given this is a pretty niche product there can't feasibly be more than one manufacturer making them, so if I were buying one again I'd simply buy from whoever had it cheapest, on the basis that all the suppliers are likely buying from the same factory.

I replaced my nylon saddle bush with a brass one last spring. Gives a firm and positive gear change that shouldn't degrade with use. Mine took a few tens of miles to wear in as it felt a bit too stiff to start with, but feels great now.

SOLD

2 hours ago, ducatidentist said:

Thanks,  my head rests are really stiff to remove so I'm looking for a solution with pockets.

They're all a bit stiff I believe. Regular use will likely loosen them up.

1 hour ago, coolcatshaft said:

I am guessing headrests need to come off for this to go on?

Yep. 👍

Tonneau cover for S3 chassis with leather seats. Zip in middle. Came with my car and now no longer needed as I've swapped the leather seats for Tillets. Appears almost brand new - I've never used them and it seems that the previous owner/builder didn't either.

Open minded on price. Aiming for £200-250 or nearest offer. Will throw in postage for the right offer.

10 hours ago, BigCol said:

Have a look here…

I've seen that content on RRT's site before but it doesn't seem to support @7 wonders of the world's statement above. Unless I'm missing something?

19 hours ago, 7 wonders of the world said:

By comparisonn the ATB offers very little performance improvement over an open differential

That sounds intriguing. Can you point me to some data on that please?

On 24/10/2023 at 16:26, John Vine said:

Did you get no joy from the suggestions offered in your earlier post?

JV

I heard off-forum that this has now been resolved. Two sides to every coin etc.

#38, ask the Academy crowd. Apparently it's a common thing to disconnect it, and I can only assume that they do so because they judge the risk to be significant enough to make it worthwhile.

Ultimately I guess it comes down to whether you're prepared to risk an early exit to your race or track day. If you don't want the risk, you disconnect it. It does no harm to run disconnected so why wouldn't you?

Glad to hear Rhys. As Jonathan has already said, thanks for posting the fix.

#33, in my opinion you're being a little bit provocative with that question.

The posters on #'s 17, 19, 22, 23, 25, 28 and 29 have all acknowledged or contributed to the body of knowledge being built up on what happens should the speedo wiring get caught/damaged/shorted when being driven. In a road context this means a call to the AA/RAC for a lift home and in a race or track context this means an early exit, and possibly also a lift home. Given road cars are required to have a working speedo we have to live with the risk on the road, but on track the risk can be mitigated by disconnection.

How much more of a legitimate reason would you like from the posters listed above and I on this subject?

#27, that's hardly surprising given the volume of posts suggesting he wanted to do something nefarious.

Now that we've established that there is a legitimate reason for disconnecting the speedo sensor on track all those who threw virtual rocks at him seem rather quiet too.

Good to hear  

#18, picking up incident debris on track and spinning off track into the litter are a couple of situations that I could think of that could catch the speedo sensor wiring without also meaning structural damage to the rest of the car.

I seem to remember that on the Academy cars they disconnect the speed sender at the rear wheel. This is because if the sender or cable gets hit or damaged on track it can cause a fuse to blow (not sure which one) that cuts power to the ECU, meaning loss of power on track and a recovery back to the pits.

Thus, speedo disconnection is considered a preventative way to avoid early retirement from racing. The same would also be true when on a track day.

Lotus Elises had the same knocking issue. There's a good description of the cause and cure here.

https://www.eliseparts.com/shop/braking/brake-accessories/4-x-anti-rattle-brake-pad-buffers/

For brake squeal, the usual cure is a light smear of copperslip on the back of the pads.

Probably, but as a Berks member I'm now quite concerned that there are two rogue garages in the area. PM please if that doesn't give the mods the sweats.