Relays ...

[Jack Valiant]

Have any of you tried / experience of the new Hella solid state relays in your wedge? Just been reading another thread on the forums ...

https://www.123spareparts.co.uk/car-parts/HELLA/Re...

They are a little more expensive than the traditional ones but you are getting allegedly x 10 fold cycle life plus the reliability ?

Thinking of getting a couple for the Gredge for the more used and heavy load circuits and giving them a go say fans and fuel pump etc

[Campbell]

They look interesting and probably not a bad idea for the fuel and cooling.
Personal ive had a relay fail but you never know.

[adam quantrill]

They only fail very rarely for me too, and I have plenty liberated from old motors, so have enough stock for years.

[Jack Valiant]

Yep got plenty of spares ... the issue here is efficiency, reliability and safety .... They use diode switching so no flash over, mechanicals have a cycle life of 30.000 cycles which sounds a lot but not in real terms of a car that is used, these have 10 times that and should they fail they go open circuit and reduce the chance of heat / fire. So will get a few and try them out and report back. Likewise there is a box of 8 integrated relays in a single package ... a couple of these could replace most of the fuse board .... ummm

[mrzigazaga]

Sounds like something worth looking at mate....

[jimburr]

Love the idea of upgrades but nothing beats a good battery. voltage good, amps low, relays happy. and at nearly 30 quid a pop. new battery for me. I do like the fuse replacements though, great for fault finding.

[TVRleigh_BBWR]

I think there prices are a bit all over the place, so maybe worth checking other sites.
see below for an example £176.00 for a fuse.
https://www.123spareparts.co.uk/car-parts/HELLA/Fu...

[phillpot]

TVRleigh_BBWR said:

I think there prices are a bit all over the place, so maybe worth checking other sites.

Not getting any cheaper!

[mrzigazaga]

TVRleigh_BBWR said:

I think there prices are a bit all over the place, so maybe worth checking other sites.
see below for an example £176.00 for a fuse.
https://www.123spareparts.co.uk/car-parts/HELLA/Fu...

Hi Leigh...It does say that that price is for a pack of 10...The ones that Chris posted up are a pack of 8....

[Wedg1e]

I've had two crispy relays in 20-odd years of owning Wedges and in both cases it was down to excessive loading (i.e. not considerd at the design stage).
The early Tasmins had one 20A (IIRC) main 'Ignition' relay handling all the switched loads; by the time the 390 was built it was two 30A relays with circuits split between them (although one still had rather more loading than the other). When I got the car one of the Ignition relays had been bypassed as its socket had melted! I think I have a pair of 40A items in there now. Melt that, ya bastid