2015-09-21 snapshot

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checkerz
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Re: 2015-09-21 snapshot

Post by checkerz »

Image

I'm far from the fastest guy, but this is currently where my setup sits. I think more tweaking can definitely be done, but it's pretty consistent as it sits.
MixinGas535
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Re: 2015-09-21 snapshot

Post by MixinGas535 »

Just trying to keep my testing consistent by continuing to run on hangtown 2015, That setup works pretty good for me everywhere except the breaking bumps, whoops, and accel bump. That being said Ive tried what must've tried a million different shock settings and I always get the notorious rpm up and down (no traction) going up the hills and losing traction in the rear on braking bumps, no matter what I do
ShackAttack12
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Re: 2015-09-21 snapshot

Post by ShackAttack12 »

How are you guys running less than 30 preload in the rear? I feel like the suspension sits way low in the travel with less than 30 preload, and thats even with a very stiff rear spring.
ShackAttack12
| 2010 Supercross Champ | 2011 Supercross Champ | 2019 Supercross Champ |
MixinGas535
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Re: 2015-09-21 snapshot

Post by MixinGas535 »

I had a decent setup with around 45 preload. The only problem for me was I like a really fast cornering setup and I couldn't get it to turn quick enough at the speed I like to hit berms. It would work if I braked really early. But that setup would often make my front end fall down into the "pockets" towards then end of whoops sections as well.
checkerz
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Re: 2015-09-21 snapshot

Post by checkerz »

ShackAttack12 wrote:How are you guys running less than 30 preload in the rear? I feel like the suspension sits way low in the travel with less than 30 preload, and thats even with a very stiff rear spring.
I haven't tried to tune it up further yet, I was having some rocking issues with weight transfer, so jsut dropped it way down to see if that would help resolve it. It did, and I haven't had an issue yet because of it being low. I did stiffen the shock though too while tuning after that via spring and compression.
ShackAttack12
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Re: 2015-09-21 snapshot

Post by ShackAttack12 »

checkerz wrote:
ShackAttack12 wrote:How are you guys running less than 30 preload in the rear? I feel like the suspension sits way low in the travel with less than 30 preload, and thats even with a very stiff rear spring.
I haven't tried to tune it up further yet, I was having some rocking issues with weight transfer, so jsut dropped it way down to see if that would help resolve it. It did, and I haven't had an issue yet because of it being low. I did stiffen the shock though too while tuning after that via spring and compression.
You mean weight transfer under braking? Up the fork low speed compression to fix that.
ShackAttack12
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SOAB_465
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Re: 2015-09-21 snapshot

Post by SOAB_465 »

MixinGas535 wrote:Just trying to keep my testing consistent by continuing to run on hangtown 2015, That setup works pretty good for me everywhere except the breaking bumps, whoops, and accel bump. That being said Ive tried what must've tried a million different shock settings and I always get the notorious rpm up and down (no traction) going up the hills and losing traction in the rear on braking bumps, no matter what I do
Try lowering the high speed rebound.

If you run it really low it seems to work almost like the dropout shock on the works KTMs. If you raise the low speed rebound, it will still settle when you're on the throttle, just have more traction when the tire would normally leave the ground
MixinGas535
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Re: 2015-09-21 snapshot

Post by MixinGas535 »

All dampening aside, Lower spring rate + more preload should have the static sag as stiffer spring + less preload, and should behave similarly right? Or am I way off?
MixinGas535
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Re: 2015-09-21 snapshot

Post by MixinGas535 »

SOAB_465 wrote:
MixinGas535 wrote:Just trying to keep my testing consistent by continuing to run on hangtown 2015, That setup works pretty good for me everywhere except the breaking bumps, whoops, and accel bump. That being said Ive tried what must've tried a million different shock settings and I always get the notorious rpm up and down (no traction) going up the hills and losing traction in the rear on braking bumps, no matter what I do
Try lowering the high speed rebound.

If you run it really low it seems to work almost like the dropout shock on the works KTMs. If you raise the low speed rebound, it will still settle when you're on the throttle, just have more traction when the tire would normally leave the ground
I have been trying that as well! Although I find as I move towards a setting that's starting to get me better traction, it seems to to begin having a "reverse packing" effect under breaking, if you will. Like when the weight is transferred to the front under breaking the shock ends up riding a little high in the stroke reducing the rake a lot (I think that's the proper term for it) and sometimes pushing the front end down into the valley of the whoops
ShackAttack12
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Re: 2015-09-21 snapshot

Post by ShackAttack12 »

MixinGas535 wrote:All dampening aside, Lower spring rate + more preload should have the static sag as stiffer spring + less preload, and should behave similarly right? Or am I way off?
Definitely not.

You can get the same static sag with soft spring + high preload vs stiff spring + low preload, however the springs will still ramp differently and behave differently.

5kg spring with 4mm of preload vs 4kg spring with 5mm of preload:
Image
ShackAttack12
| 2010 Supercross Champ | 2011 Supercross Champ | 2019 Supercross Champ |
MixinGas535
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Re: 2015-09-21 snapshot

Post by MixinGas535 »

I'm really starting to like this community. Thanks for clearing that up for me. It's definitely going to make a difference in settings I try. Between you guys and the race tech bible I'm really like learning this stuff.
MixinGas535
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Re: 2015-09-21 snapshot

Post by MixinGas535 »

I'm having a little trouble discerning between what type of obstacles and symptoms call for which adjustment velicity. From what I understand, whoop sections and breaking bumps are considered high speed velocity, as well as landing to flat or casing a jump. That being said, wouldn't having less compression dampening as to not deflect the rear wheel on whoops also reduce your bottoming resistance for hard landings?
jlv
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Re: 2015-09-21 snapshot

Post by jlv »

MixinGas535 wrote:Is the dampening of the shock position sensitive as well as speed sensitive?
Only from the linkage. The damper itself doesn't care about position.
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MixinGas535
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Re: 2015-09-21 snapshot

Post by MixinGas535 »

Here is a video using checkerz's setup. Any way to combat the rear wheel hopping like this or is there just so much you can do? https://youtu.be/IwwiQ7ClNKA
Sweendoggy
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Re: 2015-09-21 snapshot

Post by Sweendoggy »

Sounds like a nice update. Also sounds like I'm going to have to adjust my setup when I start playing again :evil:
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