172LikesKyosho Ultima RB6 & RB6.6 Car Thread
12-21-2016, 08:46 AM - Wikipost
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03-21-2013, 11:30 AM
#5794
Tech Initiate
With adding/removing shims under the rear suspension mounts. However, i've only seen setup sheets that take away anti-squat by adding .5mm under the RR block. Doesn't adding shim under RF aid in rear traction when the car is under power ie beginning of the straightaway? Something I've wanted to mess with.
Another question, what is the result of a setup with a higher roll center in the rear but a lower rollcenter on the front? Seen lots of setups like that. My theory with this setup is that the car is going to roll less with high speed turns and roll more during low speed turns.
Last edited by HalfManHalfGod; 03-21-2013 at 12:04 PM.
03-21-2013, 01:40 PM
#5795
Help please. Spur and pinion size. Running a race with my 9.5 motor. Any suggestion/starting point for spur/pinion size? thanks.
03-21-2013, 01:51 PM
#5796
03-21-2013, 02:08 PM
#5797
And how far down you thread the shock ends. You don't want them too loose where they can strip out, but you do have 3 or so turns on or off the shaft to fine tune your droop. Quicker and easier than using/removing small limiters. In other words, use limiters and shock end sizes to get you to your "middle" setting or "ballpark" droop.. then screw in or screw out your shock end to find tune.
03-21-2013, 02:49 PM
#5798
Tech Master
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played with it out in the street and have to say that I dont think ill have too many issues once on the track.
03-21-2013, 03:58 PM
#5799
I'm looking into buiding a complete extra tranny. The manual shows the motor centering piece (parts callout bubble 54, Pg. 20, step 20 in the manual) as part um508c. But, parts tree um508c does not have this piece on it, along with the four plastic spacers (parts callout bubble 55) that go on the 3x35 screws for the trans. From what I can tell, those pieces are actually part um523. What's the deal with this? I'm sure I'm overlooking something.
03-21-2013, 04:28 PM
#5800
With adding/removing shims under the rear suspension mounts. However, i've only seen setup sheets that take away anti-squat by adding .5mm under the RR block. Doesn't adding shim under RF aid in rear traction when the car is under power ie beginning of the straightaway? Something I've wanted to mess with.
Another question, what is the result of a setup with a higher roll center in the rear but a lower rollcenter on the front? Seen lots of setups like that. My theory with this setup is that the car is going to roll less with high speed turns and roll more during low speed turns.
Another question, what is the result of a setup with a higher roll center in the rear but a lower rollcenter on the front? Seen lots of setups like that. My theory with this setup is that the car is going to roll less with high speed turns and roll more during low speed turns.
03-21-2013, 05:30 PM
#5801
I hold up my hand and admit I haven't the foggiest what you're on about. Barely touching what? Low car stand? High car stand?
03-21-2013, 05:43 PM
#5802
Tech Addict
03-21-2013, 07:03 PM
#5803
With adding/removing shims under the rear suspension mounts. However, i've only seen setup sheets that take away anti-squat by adding .5mm under the RR block. Doesn't adding shim under RF aid in rear traction when the car is under power ie beginning of the straightaway? Something I've wanted to mess with.
Another question, what is the result of a setup with a higher roll center in the rear but a lower rollcenter on the front? Seen lots of setups like that. My theory with this setup is that the car is going to roll less with high speed turns and roll more during low speed turns.
Another question, what is the result of a setup with a higher roll center in the rear but a lower rollcenter on the front? Seen lots of setups like that. My theory with this setup is that the car is going to roll less with high speed turns and roll more during low speed turns.
Question: are the ghea 1.3 x4hole pistons similar to the 4 hole 55's? Besides the taper?
03-21-2013, 07:26 PM
#5804
You want to measure the difference between ride height and chassis height at full droop. So i set the car on the stand, and then put something under the middle of the chassis until the tires are barely touching. Now measure under the chassis to get max height and calculate the difference. This is called the droop over ride height method, if you find blocks that work, your numbers will be different.
03-21-2013, 08:15 PM
#5805
Tech Initiate
I know that on my shortcourse truck I lowered the rear roll center.. This gave m truck less rear traction allowing it to slide around corners and traction roll less in the sweeper and very high grip sections. So... I would expect the opposite to take place here. Locking in the rear more and giving more grip. Last night the track was slick and I was sliding around and swapping ends so I lowered the rear link, which raised the roll center and gave me a bit more grip = less sliding out and more side bite and grip
Question: are the ghea 1.3 x4hole pistons similar to the 4 hole 55's? Besides the taper?
Question: are the ghea 1.3 x4hole pistons similar to the 4 hole 55's? Besides the taper?
Found the answer to my question:
All things being equal, decreasing the front roll stiffness will decrease understeer/increase oversteer. Increasing front roll stiffness will increase understeer/decrease oversteer.
The opposite is true at the back. Increasing roll stiffness will increase oversteer/decrease understeer while decreasing roll stiffness will increase understeer/decrease oversteer.
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