Sand Car Stability at Higher Speeds

A stiff/tall paddle is a big contributor to the ass end feeling floaty I've put different paddles on and it disappeared.

 
Dockmaster said:
How does your sand car feel at higher speeds on straight stretches?  I’m wondering if mine is typical or if I should try some adjustments? I love my little 2 seat, mid-engine Revo. It’s like a slot car in the sand. However, when I hit our sand freeway here in Oregon or on the straight beach runs it starts to feel a little squirrelly as I get towards 90 and more past 100. The car has lots more in it and really I can honestly say it has more in it then I have in me 🥵. I originally just assumed it was tracking back and forth in the ruts and maybe that’s all that’s happening. But curious if this is typical or is there any adjustments I can make to help it track and feel more stable on these higher speed runs? Could it be as simple as playing with front tire pressures? I currently run right about 9-10 psi. Maybe I should try lower pressures? Maybe some shock setting changes? I have the power steering dialed down pretty low so don’t think that’s the issue. Or is this typical and I’m expecting too much? I don’t do this often enough that I would want to sacrifice the handling in the dunes. So if this is a case of just wanting the best of all driving conditions, I’ll gladly live with the high speed characteristics if it means giving up something else. What say you experts? 
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What size rear tires and wheels are you running? I ran 17x12s on my revo with 33 inch stu’s and it was all over the place. now run 15x8” wheel with a 33” Stu and runs much better on flats. Felt like the rear end was constantly moving and jerking back and forth with the wider footprint tires. 

 
stevebeckner said:
What size rear tires and wheels are you running? I ran 17x12s on my revo with 33 inch stu’s and it was all over the place. now run 15x8” wheel with a 33” Stu and runs much better on flats. Felt like the rear end was constantly moving and jerking back and forth with the wider footprint tires. 
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stevebeckner said:
What size rear tires and wheels are you running? I ran 17x12s on my revo with 33 inch stu’s and it was all over the place. now run 15x8” wheel with a 33” Stu and runs much better on flats. Felt like the rear end was constantly moving and jerking back and forth with the wider footprint tires. 
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The rear wheels are 15x12. I can’t remember the exact tire diameter. I think they are a little under a 33”, might even be closer to 31”. The rear tires are Extremes. 
 

I was briefly looking at the toe in today as I was working on other items on the car. From a visual the driver’s side looks good but the passenger side front looked to toed out a bit. I did a quick measurement and it showed off by 1/2”. But I’ll need to spend more time and get a more accurate measurement. 
 

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Dockmaster said:
Your tires look taller than mine unless it’s an illusion because your wheelbase and overall length is shorter than my car. 
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My rears are about 34” tall on the 8” wheels. I think with the super short wheel base the skinny wheel-tire package helps it dig in and feels way better at high speed. Both sets of tires feel about the same when dining. You can see in this pic a little better how narrow it makes the tires

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