Paul_S
Club Member
Paul, does your diff mounting look like this (mine)?
I think it does! I'll get some photos soon
Paul, does your diff mounting look like this (mine)?
I’ve been fitting my Illuminas. They’re bz3015 for 240z front, but they’re going in the rear of my 260z.
They’re about 2” shorter than the std inserts To match the lowering springs:
However, I’m not shortening the tubes, so I’ve made spacers for the top of the Illuminas
The spacers are all snug at each end so I’m optimistic it’ll work well
The conventional way of doing it - and it's the way Tokico themselves do it - is to put the spacer at the BOTTOM of the insert.
Putting the spacer at the top reduces the stroke of the damper.
I’ve been fitting my Illuminas. They’re bz3015 for 240z front, but they’re going in the rear of my 260z.
They’re about 2” shorter than the std inserts To match the lowering springs:
However, I’m not shortening the tubes, so I’ve made spacers for the top of the Illuminas:
The spacers are all snug at each end so I’m optimistic it’ll work well
Hi, wouldn’t the dampening rates be off if you’re using them at the ‘wrong’ end?
Never mind all this - Jon is that your house? If so I have 'view envy' !
I don’t really know - I posted it partly to get feedback on this.
jonbills said:However, in addition to my previous arguments this seems logically the same as what you get when you section the strut by 1.5” and use this damper (except the last 1.5” of travel is unavailable in my case)
Tokico are quite happy to recommend using the inserts at either end of the car, and they have such a wide adjustment range that they can probably be dialled-in regardless (the 'Illumina' is a fairly 'one-rate-fits-all' multi application design anyway) so I would not worry too much about that. Tokico are also quite happy to recommend - and supply - spacers for their inserts, but they always go UNDER the insert - not on top.
I'm just concerned as it seems counter-intuitive to restrict usable damper stroke in order to get round some other problem. And once you put the bump stops on you're not going to have much damper travel left, are you? I'm sure it will work, but it seems far from ideal.
Doing it the way he has, would he be less likely to hit the end of the travel of the damper but a hard stop instead? He’s got say 10% of the stroke unused?
Hard to say without seeing the whole leg on the car. I presume (hope!) a suitable bump stop is going to be used.
Being gas-charged, the Illumina insert will tend to stay extended whilst 'free' to move, but will squash down a fair bit when it has some load on it. My feeling is that the remaining usable range will be quite short between full bump length (limited by the bump stop) and full rebound (limited by the spacer on top of the insert), and I wonder whether it will lead to a situation where a wheel can come off the ground at full droop a bit earlier than it would with more droop available?
All academic, possibly. Especially if limited to running up and down the tarmac once used by the Mighty Eighth's 92nd Bomber Group.... ;-)
All academic, possibly. Especially if limited to running up and down the tarmac once used by the Mighty Eighth's 92nd Bomber Group.... ;-)
Never mind all this - Jon is that your house? If so I have 'view envy' !