552LikesNew IRIS by AME
11-22-2022, 02:11 PM
#181
Tech Master
iTrader: (22)
Join Date: Aug 2003
Location: Where there's smoke there's a tyre
Posts: 1,784
Trader Rating: 22 (100%+)
Centering the motor in the car has more to do with the spinning mass the motor creates when operating at higher RPM's. This creates an offset torque that messes with the overall balance of the car even though car is statically balanced. Think bubble leveling a car tire to balance vs Dynamically balancing by spinning it.
1) Weight distribution plays a large roll in the lateral forces at the tyre contact patch from corner entry to exit. The higher the lateral forces at one of the car compared to the other causes that end of the car to have a higher slip angle than the other. (there is more at play but a simplification is fine for the sake of the point).
2) Moment of inertia affects how fast an object can accelerate and decelerate around an axis. If you can reduce the moment of inertia, you get reduced initial lateral forces at the tyre contact patch, and a more responsive handling (as the chassis can move faster)
11-22-2022, 02:30 PM
#182
That description is a bit off. There are 2 things to consider weight distribution at the tyre contact patches and the overall moment of inertia.
1) Weight distribution plays a large roll in the lateral forces at the tyre contact patch from corner entry to exit. The higher the lateral forces at one of the car compared to the other causes that end of the car to have a higher slip angle than the other. (there is more at play but a simplification is fine for the sake of the point).
2) Moment of inertia affects how fast an object can accelerate and decelerate around an axis. If you can reduce the moment of inertia, you get reduced initial lateral forces at the tyre contact patch, and a more responsive handling (as the chassis can move faster)
1) Weight distribution plays a large roll in the lateral forces at the tyre contact patch from corner entry to exit. The higher the lateral forces at one of the car compared to the other causes that end of the car to have a higher slip angle than the other. (there is more at play but a simplification is fine for the sake of the point).
2) Moment of inertia affects how fast an object can accelerate and decelerate around an axis. If you can reduce the moment of inertia, you get reduced initial lateral forces at the tyre contact patch, and a more responsive handling (as the chassis can move faster)
11-23-2022, 12:55 AM
#183
Will the 2022 version keep these gear-activated damper cantilevers from the 2016 kickstarter pitch, you think? I love the low-CG and oddball aspect of that design, I'm just concerned they will either be sloppy or binding... curious to see what comes out of prod!
11-23-2022, 01:25 AM
#184
11-23-2022, 05:11 AM
#185
Tech Regular
11-23-2022, 10:00 AM
#187
11-23-2022, 10:28 AM
#188
The Iris ONE touring car is the first competition car kit fully developed and designed by RUDDOG. Project lead designer Andreas Myrberg implemented countless novel and revolutionary features into the all-new Iris ONE.
https://www.ruddog.eu/Kits_2
Shipping starts on December 15th. Preorder your kit now from your local hobby shop.
Featuring a unique pushrod design with torsion springs and a single-lever rotational shocks, the centre-of-gravity is super low, thus improving overall performance. Combined with sturdy double wishbones, the high-performance suspension package ensures fast and consistent lap times run after run. Moreover, the newly developed pitch and heave shock improves handling under braking and high speed cornering.
Together with an ultra-narrow bulkhead design, the efficient three-belt drive train results in perfect weight balance. With three identical belts, less belt tension is required than with a conventional two-belt set-up.
Many unique details, such as an optional direct-mount aluminium fan, have been integrated into the design of Iris ONE to give you an edge over the competition.
· Unique torsion spring design
· Single lever rotational shocks
· Pushrod suspension
· Double wishbone design; identical arms on all four corners
· Revolutionary pitch and heave shock system
· Efficient low friction three-belt drive train
· Ultra narrow bulkhead design
· Steering assembly with easily adjustable Ackermann geometry
· Adjustable track width with inserts
· Sturdy and fully adjustable suspension
· Carbon chassis and Linear flex aluminium chassis version available
· Optional direct-mount aluminium high-speed fan
https://www.ruddog.eu/Kits_2
Shipping starts on December 15th. Preorder your kit now from your local hobby shop.
Featuring a unique pushrod design with torsion springs and a single-lever rotational shocks, the centre-of-gravity is super low, thus improving overall performance. Combined with sturdy double wishbones, the high-performance suspension package ensures fast and consistent lap times run after run. Moreover, the newly developed pitch and heave shock improves handling under braking and high speed cornering.
Together with an ultra-narrow bulkhead design, the efficient three-belt drive train results in perfect weight balance. With three identical belts, less belt tension is required than with a conventional two-belt set-up.
Many unique details, such as an optional direct-mount aluminium fan, have been integrated into the design of Iris ONE to give you an edge over the competition.
· Unique torsion spring design
· Single lever rotational shocks
· Pushrod suspension
· Double wishbone design; identical arms on all four corners
· Revolutionary pitch and heave shock system
· Efficient low friction three-belt drive train
· Ultra narrow bulkhead design
· Steering assembly with easily adjustable Ackermann geometry
· Adjustable track width with inserts
· Sturdy and fully adjustable suspension
· Carbon chassis and Linear flex aluminium chassis version available
· Optional direct-mount aluminium high-speed fan
11-23-2022, 10:32 AM
#189
Looks really innovative! My next purchase lol
11-23-2022, 10:43 AM
#190
and about rear shock? 
11-23-2022, 11:04 AM
#192
Well good luck to them. Looks like an absolute nightmare to build, maintain and set up.
11-23-2022, 11:30 AM
#193
Tech Regular
iTrader: (24)
Lol, maybe. Is car designed for carpet and not asphalt? Can’t wait to see the manual. My main concern is how much maintenance does the car need. Is the design robust or fragile. Who knows? I appreciate the innovation and the ingenuity of the design.
11-23-2022, 11:50 AM
#195
https://imgur.com/a/G7Vebm5
the front counterpart is behind the bumper. the coilover unit is the heave damper.
was really hoping someone would be gutsy enough to try a mode decoupling solution
for the life of me I can't think of a good reason why they chose that placement for rear toe link.
the front counterpart is behind the bumper. the coilover unit is the heave damper.
was really hoping someone would be gutsy enough to try a mode decoupling solution
for the life of me I can't think of a good reason why they chose that placement for rear toe link.