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Suppliers/Dealers or anyone selling with a commercial view in mind CANNOT post here unless responding to a specific request of a member in a "wanted" post.
Suppliers include people "breaking for spares" on a regular basis, when purchasing spares members should ask a supplier what they contribute to the running of the forum particularly if contacted by a Private Message
Suppliers or Members who have contributed to the forum can be identifed by the logo.
Road spring compatibility
05 Jul 2023 20:37 #249742
by Busta
Replied by Busta on topic Road spring compatibility
Apologies if you have already done this, but it's worth checking all 4 springs because, as well as front to rear, there may be differences side to side as on the gen 3.
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05 Jul 2023 21:40 #249744
by Soeley
Black 2019 Jimny SZ5
www.bigjimny.com/index.php/forum/8-my-ji...ley-s-2019-black-sz5
Replied by Soeley on topic Road spring compatibility
Yes, I meant to mention I had measured all 4 springs. The fronts were the same, just the rears with a difference in length.
Black 2019 Jimny SZ5
www.bigjimny.com/index.php/forum/8-my-ji...ley-s-2019-black-sz5
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06 Jul 2023 04:46 #249746
by Lambert
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Replied by Lambert on topic Road spring compatibility
Ok so basically and without having done the actual maths a set of gen4 springs on a gen3 will roughly give you a lift of approximately 15 to 20 mm give or take as the basic dimensions are close enough but you gain thicker wire diameter and more free length. Useful for those looking at something like that. Now in the absence of published details one has to make assumptions about the negative 45mm from HR. Firstly it's safe to say that they will be shorter than the factory springs and probably quite a bit stiffer too. Given that the gen3 is already on shorter and softer springs it might not be a reach to think that the lowering will therefore potentially be closer to 25 to 30mm rather than the negative 45. I'm going to keep looking for some dimensions for the HR springs though because they are not cheap enough for trial and error. Thanks.
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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06 Jul 2023 05:38 - 06 Jul 2023 06:35 #249747
by Lambert
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Replied by Lambert on topic Road spring compatibility
Just thrown some numbers into a calculator and the front is 22.2N/mm on the 3 and 27.1N/mm on the 4 so that would confirm a mild lift using gen4 springs on the gen3.
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Last edit: 06 Jul 2023 06:35 by Lambert.
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06 Jul 2023 07:14 #249749
by Lambert
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Replied by Lambert on topic Road spring compatibility
Mathematically the lift is around 33mm with the gen4 springs, so logically the negative 45s should be around negative 15ish?
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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08 Jul 2023 08:20 - 08 Jul 2023 08:37 #249784
by Quasi
Replied by Quasi on topic Road spring compatibility
Morning Lambert,
the TUV certificate looks to have dimensions for those springs
www.h-r.com/bin/28678.pdf
II.1 Technische Beschreibung (Federn) Achse 1 / Axle 1 Achse 2 / Axle 2
Technical description (coil springs) Drahtdurchmesser in mm : 10,5 10,5
Wire diameter in mm
Anzahl der Windungen : 11,0 9,4
Total number of coils
Länge in mm (ungespannt) : 329 285
Untensioned length in mm
Außendurchmesser in mm : 114,5 112
External diameter in mm
the TUV certificate looks to have dimensions for those springs
www.h-r.com/bin/28678.pdf
II.1 Technische Beschreibung (Federn) Achse 1 / Axle 1 Achse 2 / Axle 2
Technical description (coil springs) Drahtdurchmesser in mm : 10,5 10,5
Wire diameter in mm
Anzahl der Windungen : 11,0 9,4
Total number of coils
Länge in mm (ungespannt) : 329 285
Untensioned length in mm
Außendurchmesser in mm : 114,5 112
External diameter in mm
Last edit: 08 Jul 2023 08:37 by Quasi.
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