Xray T4 18
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#47
#48
Spring retainers already almost touch the wishbones.
Perhaps as you've mentioned, higher volume.
Certainly won't be getting rid of my std shock sets yet in case they work better outdoors etc.
Interested to see what they've done
#49
In the pics we have so far the top deck is too far away from the front belt to be different to the current version.
Wonder if the bulkheads are different to allow for the bearing carriers, which are either mounted incorrectly in the pics or have changed (flange is on the outside in the pics)
Last edited by Skiddins; 09-14-2017 at 05:12 AM.
#50
The reason for the shimming on the 15/16 was to stop it hitting the mounts, yes. But on the 17, you actually do still need it as under flex the top deck hits the bearing on one side causing some tweak
#51
That wasn't the reason the team drivers were adding the shims, at least, not the ones I've spoken to.
#52
Haven't 'needed' to shim the top deck on the '17 as the layshaft mounts were lowered, but most drivers due as it seems to give better traction.
In the pics we have so far the top deck is too far away from the front belt to be different to the current version.
Wonder if the bulkheads are different to allow for the bearing carriers, which are either mounted incorrectly in the pics or have changed (flange is on the outside in the pics)
In the pics we have so far the top deck is too far away from the front belt to be different to the current version.
Wonder if the bulkheads are different to allow for the bearing carriers, which are either mounted incorrectly in the pics or have changed (flange is on the outside in the pics)
#53
We talked to Bruno at Euros 1/8E Buggy few weeks back. He said on carpet the car is a monster and they found nice set-up, already faster than with T4 2017! On asphalt a different story at the moment, the old car with bigger shocks works better but they think its just a matter of shock set-up
oil/spring combo.
#54
We talked to Bruno at Euros 1/8E Buggy few weeks back. He said on carpet the car is a monster and they found nice set-up, already faster than with T4 2017! On asphalt a different story at the moment, the old car with bigger shocks works better but they think it’s just a matter of shock set-up… oil/spring combo.
#55
We also ride on low to medium grip asphalt.
#56
We talked to Bruno at Euros 1/8E Buggy few weeks back. He said on carpet the car is a monster and they found nice set-up, already faster than with T4 2017! On asphalt a different story at the moment, the old car with bigger shocks works better but they think it’s just a matter of shock set-up… oil/spring combo.
In the UK on particularly bumpy tracks the team drivers sometimes run the old T3 shocks to good effect.
I won't be selling my old cars just yet!
Last edited by daleburr; 09-14-2017 at 07:35 AM.
#57
Tech Elite
I don't understand why not a single manufacture has implemented rotary shocks besides Awesomatix and why not a single manufacture has implemented gull wing arms besides Schumacher. Both designs solve all of the issues with shorter shocks.
#58
Because it's not necessarily a better option the design of the gull wing arms that Schumacher use on their onroad car are very stiff in their design. They will probably end up being dropped if or when Schumacher go to a shorter shock. It was most likely done to save money, they would of had to produce a brand new shorter shock otherwise
#59
Tech Fanatic
iTrader: (1)
Because it's not necessarily a better option the design of the gull wing arms that Schumacher use on their onroad car are very stiff in their design. They will probably end up being dropped if or when Schumacher go to a shorter shock. It was most likely done to save money, they would of had to produce a brand new shorter shock otherwise
#60
Tech Elite
iTrader: (13)
Making a shorter shock is far less expensive than making a different arm
The Gizmo has "gullwing geometry". Much like the Schuei, this allow to run a slightly longer shock and still have them sit lower on the car. Our car with longer shocks than the XRAY (2mm total longer), the shocks sit 2-3mm lower than on the T4 for example. With Short shocks, the difference is about 5mm. I personally think there is a benefit to the higher volume shock on asphalt though, and find myself using the original longer shocks more and more as they give a slight bit more steering.
I have not been able to identify the reason much, but I am starting to think it is the extra volume. I have played around with yokomo shock caps, which fit the xray shocks and make the shocks 2mm shorter to try to see if it is the geometry that makes a difference. What I have observed is that by using yokomo caps and the longer shocks, while essentially having the same length shock, the feel is still not the same. The longer shock gives more mid corner steering and overall a more responsive feel. The CG difference is negligible at best because by making it 2mm shorter, I can run the same towers.
On Carpet the effect is typically the same, however the shorter shocks mellow out the car and make it easier to drive hard, which I think translates into better laptimes.
I think we are getting to the point where cars have to be built slightly different for asphalt than carpet to maximize performance. We already are partly there, by running alloy vs carbon, shocks should be on that list if you ask me...
The Gizmo has "gullwing geometry". Much like the Schuei, this allow to run a slightly longer shock and still have them sit lower on the car. Our car with longer shocks than the XRAY (2mm total longer), the shocks sit 2-3mm lower than on the T4 for example. With Short shocks, the difference is about 5mm. I personally think there is a benefit to the higher volume shock on asphalt though, and find myself using the original longer shocks more and more as they give a slight bit more steering.
I have not been able to identify the reason much, but I am starting to think it is the extra volume. I have played around with yokomo shock caps, which fit the xray shocks and make the shocks 2mm shorter to try to see if it is the geometry that makes a difference. What I have observed is that by using yokomo caps and the longer shocks, while essentially having the same length shock, the feel is still not the same. The longer shock gives more mid corner steering and overall a more responsive feel. The CG difference is negligible at best because by making it 2mm shorter, I can run the same towers.
On Carpet the effect is typically the same, however the shorter shocks mellow out the car and make it easier to drive hard, which I think translates into better laptimes.
I think we are getting to the point where cars have to be built slightly different for asphalt than carpet to maximize performance. We already are partly there, by running alloy vs carbon, shocks should be on that list if you ask me...