Thread: Stirlsilver's Disco Ute Project

Originally Posted by disco2hse

Honestly. Engineers, can't leave well alone

because we can

A short update.

The design of the 50mm extender for the rear shock absorber is done. Using my usual camera trick.

A quick update:
Trialing the inverting circuit. the MSX card in the ECU outputs an earthing signal for the injectors, but the peak & hold board needs a 0 to 5V signal. So a 74HC04 IC is used to invert the signal. It works



A few hours were spent again, but not much to see. Some welds were tidied up and primer paint added:






And the right hand side had more bog added and sanded back:



Does anyone know if I need to raise the spring perches on the front or if I only need to extend the shock cones?? I'm a little confused on this point.

What is the objective with the springs?
Skiboy

Originally Posted by Skiboy

What is the objective with the springs?
Skiboy

To prevent them disengaging from the perches when the axle is in the full down position. I don't want to use dislocation cones. But if the front can't flex that far, then it doesn't need the longer springs, that's what I don't know.

Front bush binding on radius arms will be the limiter - we run front cones but not needed as never seen it drop that far.

So no unless you but say the new superior engineering radius arms in - only then wil you get more movement

Rear not have much to limit it so more of an issue
Skiboy

My Defender will happily dislocate the front springs on a highlift jack on both sides, probably by between 30 and 40mm. If you have long enough shocks there will be situations where the springs will come out of their seats.

This probably wont be at full flex (hard up one side, hard down the other) as, as skiboy has commented the binding will stop it getting enough movement, but if you get one side to have full droop and one side only slightly compressed it may.

Nice work with the project. Following with interest.

Still won't dislocate much (ie tiny amount) and due to the shorter spring and angles unlikely to dislocate to the point where they won't relocate.

In any event a small cone would be a much easier peace of mind preventative than cutting towers.

We comped our 2 inch lifted rangie ute (same set up as disco under the skin) and had small cones in the front - no wear signs of them ever dislocating at all.

Prior to the cones never had a problem - they are there simply because we had them

EDIT - Re rear - if worried about dislocation then lifting the seat only part of the solution - the outside edge of your lifted seats is where the likely problem will come if they do lift then will get caught on the lip of the outside edge - what no make that 50mm longer - then you have a deeper "cup" at the top where the spring is located - that way the spring could dislocate up to 50 mm and still slip back into the cup

Skiboy