David Galdo

iTrader: (15)

LouisB :: I thought the opposite about lowering the hinge pin.

shrekair

iTrader: (9)

louis B
LIST THEM PLEASE

rayhuang

iTrader: (5)

When you do this you have actually raised the roll center, but Losi calls Low Roll Center when you lower the bottom hingepins-which is wrong.

LouisB

shrekair

Which ones do you want? the carpet+rubber is with T27s (treaded)

LouisB

OK now I think about it, it does raise the center of rotation
but still, what will it do to my car (or will I have to wait until my sunday race)

ZER01

The lower the plates are to the chassis the more roll that end of the car will have.

shrekair

iTrader: (9)

just list all three setups

shrekair

iTrader: (9)

moving the hingepins closer to the chassis lowers roll center. in general lower roll center is more steering off the corner, higher roll center is more steering into the corner.

Fire

isn't it the other way around?
by rising the hinge pins away from the chassis you can still have the same ride height but the suspension not as compressed as before so the suspension works better?

LouisB

Andy Moore's foam on carpet set-up

Open track

Front
toe in: 0.5 degrees
Ride height: 4.5mm
camber: -1 left -0.5 right
caster: 4 degrees
roll bar: None
droop height: 3
arm spacing: forward
front differential
pivot blocks: lowered 3mm
camber link: pos. 3
washers under spindle: 1.5mm

Front Shocks
oil: 70wt
piston: 57 (black)
spring: black
length: 61mm
pos. : mount position 3

Rear
toe in: 2 deg.
ride height; 5mm
camber: -1 right -1.5 left
roll bar: none
droop height: 5
arm spacing: back
pivot blocks: lowered 3mm
inner camber link: pos. 2
outside camber link: pos. B w/ 1mm washer

Rear Shocks
oil: 50wt
piston: 56 (red)
spring: black
length: 65.8mm
mounting position : pos. 3
wishbone pos: outside

Notes:
Front tyre: TRC Plaid
Rear tyre: TRC Purple
front additive: up to join
Rear additive: full
Tyre diameter: 59mm
Battery: forward
Motor: P94 12x2
pinion: 30
Spur: 108
Bodyshell: P.form Stratus
Bodyshell height: as low as possible

That took a long time

shrekair

iTrader: (9)

works better? raising the pins raises roll center it doesnt affect compression in that way

ZER01

Hey Louis, the lower the hinge pins are to the chassis the more roll that end of the car will have. As you go up(pivot blocks), roll is decreased. It's just like camber links, the higher the inside pivot point of a camber link(usaually on the shock tower) will give that end more roll-visaversa for lower camber links.

Louis, could you please post the rubber on asphalt setup. I'm dying to see something new. Thanks-Ralph

LouisB

Westley Payne's set-up

open track

Front
toe out: 0.5 degrees
Ride height: 5mm
camber: -1 degree
caster: 4 degrees
roll bar: None
droop height: 3
arm spacing: forward
one way differential
pivot blocks: lowered 3mm
camber link: pos. 3

Front Shocks
oil: 50wt
piston: 57 (black)
spring: blue
length: 61mm
pos. : mount position 3

Rear
toe in: 2 deg.
ride height; 5.5mm
camber: -0.5 degrees
roll bar: none
droop height: 5
arm spacing: back
pivot blocks: lowered 3mm
inner camber link: pos. 2
outside camber link: pos. B

Rear Shocks
oil: 50wt
piston: 56 (red)
spring: green
length: 65.8mm
mounting position : pos. 3
wishbone pos: inside

Notes:

Tyres: Take Off CS22
Insert: Pit Shimizu Medium
Battery: forward
Motor: P94 12x2
pinion: 27
Spur: 88
Bodyshell: Protoform Vauxhall Vectra

ZER01

Man that was quick!-Thanks

ZER01

I wonder what degree the track was for that setup(Westly Payne's rubber on asphalt)?