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Parts equation
Posted: Sun Jan 27, 2008 3:26 pm
by RichieRich
Hey guys, does this work?
6360 + 6366 = 7364 + 7358
1.5 degree carriers + 1.5 susp mounts = 3 degree carriers + 0 degree suspension mounts
Is this the same, roughly the same or completely different. Does this change handling?
Re: Parts equation
Posted: Sun Jan 27, 2008 3:42 pm
by templeofspeed
And then you can also do 7363+7365 (or 6365, for old school flanged bearings) which moves the 3º of toe in to the chassis.

Re: Parts equation
Posted: Sun Jan 27, 2008 3:47 pm
by scr8p
last time i told someone that 3 degrees is 3 degrees no matter how you get it, i was told i was wrong.
Re: Parts equation
Posted: Sun Jan 27, 2008 3:49 pm
by templeofspeed
The 7001 and 7011 trucks used 6360+7358 for 4.5º per side...
I believe the tuning document here explains it:
http://aedownloads.com/pdf/RC_HandbookV2.pdf
Re: Parts equation
Posted: Sun Jan 27, 2008 3:50 pm
by hkp
scr8p wrote:last time i told someone that 3 degrees is 3 degrees no matter how you get it, i was told i was wrong.
It's true.. changing the toe-in on the Losi XX4 from 3 degrees outboard to 3 degrees inboard transformed the handling.. weird, but true

Re: Parts equation
Posted: Sun Jan 27, 2008 3:58 pm
by aconsola
wouldn't introducing the toe angle at the inner hinge pin carrier have an effect on wheelbase as the whole arm is tilted forward slightly?
Is that enough to cause a handling difference?
I'm not nearly a good enough driver to tell the difference, I can find the wall no matter how much toe-in there is

Re: Parts equation
Posted: Sun Jan 27, 2008 4:05 pm
by scr8p
all it says is that it changes the handling characteristics slightly. that's as far into depth as they go on the subject.
oh well, real men run 0 degree rear toe with the ass end hangin' out.

Re: Parts equation
Posted: Sun Jan 27, 2008 5:24 pm
by terry.sc
Running inboard toe in generally gives more forward traction, so giving more rear grip for the same amount of toe in under power, but it will cause the weight to transfer to the front end easier which increases off-power steering and decreases on-power steering. This means inboard toe will give more steering into the corner and less steering coming out. This greater weight transfer also means on the limit it will break traction more abrubtly.
Outboard toe reduces the weight transfer, which gives less forward traction, less turn in and more steering coming out of the corner. As outboard toe gives less weight transfer the handling is more predictable and the rear doesn't break away on the limit as quickly and is easier to control.
As inboard toe moves the wheels forwards and backwards as well as up and down it can have strange effects on the handling on bumpy tracks, where outboard toe is much more consistent.
Re: Parts equation
Posted: Sun Jan 27, 2008 5:54 pm
by scr8p
thanks for the explanation terry.
i'd bet it's not a drastic enough effect for me to really take notice to. but, i didn't spend much time at all racing off road. my oval cars always had 0 rear toe.
loose is fast...................

Re: Parts equation
Posted: Sun Jan 27, 2008 7:54 pm
by RichieRich
Ha! Well, I figured it would be more complicated than adding numbers. Like it was said earlier, I can find a wall too pretty easily no matter what the rear toe is set to. I think 90% of traction is tires anyways.

Re: Parts equation
Posted: Sun Jan 27, 2008 8:28 pm
by JK Racing
just as a point of discussion...
arent all of todays off road cars using inboard toe?