Spring rates yz2

[J'MM'N]

Originally Posted by neallewis

I position the spring compressed a few mm, zero the gauge, compress 10mm then read of result.

As I described above the results are way off AE expected, so either the gauge is junk, or something else is wrong?

Hi Neal, do you get different readings if you compress the spring 25.5mm (1") or is it the same rate as compressing 10mm.

I know nothing about how this works but if AE is calculated lb/in, can you not compress them 25.5mm to get a N/cm and then convert to lb/in. Or does it just give you the same rating as compressing 10mm.

[neallewis]

Originally Posted by J'MM'N

Hi Neal, do you get different readings if you compress the spring 25.5mm (1") or is it the same rate as compressing 10mm.

I know nothing about how this works but if AE is calculated lb/in, can you not compress them 25.5mm to get a N/cm and then convert to lb/in. Or does it just give you the same rating as compressing 10mm.

I see where you are going with this...
The torque is a measure of force over a set compression distance (10mm).
I couldn't accurately compress 1" with this gauge.

AE quote a weight or force rating, not a torque.

[Allan1875]

Originally Posted by neallewis

It's not so simple Allan I'm afraid. Please be my guest and try it, and report back the numbers you get.
Convert the numbers from this chart to lb/in, but you still can't compare them with the AE springs (with AE ratings), until I measure them on my gauge as well.


I'll probably have to do all the yok and ae springs, get the results into a table and show both N/cm and lb/in on that, ignoring the stamped ratings from ae.

I know mate, they are still out but what I was gonna do was take the example above by how much out the AE spring was, then try factor that in with a calculation.

I am gonna mess with it just now, let you know how I get on.

[RogerM]

Neal,

The AE springs where all with in 1% of stated values which are indeed in lb/in (lb mass per inch displacement).
Torque would be lb-in (lb mass multiplied by inch displacement).

[neallewis]

Originally Posted by RogerM

Neal,

The AE springs where all with in 1% of stated values which are indeed in lb/in (lb mass per inch displacement).
Torque would be lb-in (lb mass multiplied by inch displacement).

Penny just dropped... I've googled lb/in and it automagically converts your search to lb-in! you can't search for /!!!

Right, after a conversation with Allan, I'm back on track.

Bloody waste of time that degree in engineering was

[Andrius]

Recently purchased YZ-2. Really nice bit of kit. Wondering any chance to make stock springs work good on carpet? Anyone can share stock spring shock setup for carpet pls? thanks

[Adam F]

Best bet is to try Tom C's silverstone setup earlier in the Thread, although you will need slightly stiffer springs..

[Allan1875]

Originally Posted by Andrius

Recently purchased YZ-2. Really nice bit of kit. Wondering any chance to make stock springs work good on carpet? Anyone can share stock spring shock setup for carpet pls? thanks

Tom C's setyp with stock springs will work fine on carpet. I tried the kit springs and all I lost out on was initial turn in as the carpet was a bit lazy but apart from that, decent enough.

I'd advise picking up Yatabe Orange for the front (YAS) and Green (YAS) for rear.

[Andrius]

Just ordered Yatabe front orange and purple rear springs before i read Alans post. Never mind, will use bigger pistons or thinner shock oil in the rear. First time going out with 1/10 2wd buggy.

[Andrius]

Wondering how durable YZ2 is? probably to early to take decisions, i hope i wont regret my new purchase. how durable bmax2 was? thanks

[mes]

The B-Max2 is a very durable car, I have broken two or three parts in total in three years.

[Andrius]

Originally Posted by mes

The B-Max2 is a very durable car, I have broken two or three parts in total in three years.

Sounds great. Hope YZ2 keeps same durability. Thanks

[PaulRotheram]

Has anything been rectified with official rates for these new springs? I'm baffled there's still nothing on petit rc, the springs they have are not the new yatabes being used.

It's making setup comparison very hard at the moment.

[Allan1875]

Originally Posted by PaulRotheram

Has anything been rectified with official rates for these new springs? I'm baffled there's still nothing on petit rc, the springs they have are not the new yatabes being used.

It's making setup comparison very hard at the moment.

Nothing. If you look at the petitrc big bore chart that has all springs, there is a more accurate version on there.

I have collated them into a spreadsheet for easier viewing, please see attached. I don't believe it's a 100% accurate but it's certainly a lot more accurate than the previous one.

I believe Neal is still working on this.

[neallewis]

Originally Posted by Allan1875

I believe Neal is still working on this.

In theory yes, but silly busy at work right now so not had a moment to measure them. My collection of new yz2 springs are still in packets.

[RDG 40]

Anyone finish this chart, just trying to compare associated springs

[11Gtollman]

I use these two spring charts to compare my associated springs with the yokomo ones and the yatabe ones. Come in handy quite often as they hav the same measurements. And I think it's pretty accurate?