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#1
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tips for racing 1/8 buggy on astro
Hi,
I know many UK racers run 1/8 on astro so maybe I'll find some help here do you have any general tips to share to set up a car for very high grip tracks? what tires do you use, shock positions, camber, toe settings..?
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wanted: 1/8 and 1/12 setup stations THE eCAR 2WD l MP9 TKI3 l S350 Evo l MP9E TKI l MBX6 Eco USA l 12R5.2 l SP12X l EMB-1H |
#2
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My local astro track is even more grippy than normal astroturf in the dry.
On my HPI Vorza I run: Schumacher yellow mini pins http://www.racing-cars.com/pp/Produc...rts/U6723.html Fastrax green inserts (hard) http://www.modelsport.co.uk/fastrax-...roducts/366660 HotBodies oversize 1/8th buggy wheels http://www.hpiracing.com/en/part/67527 The combination of oversize wheel and hard insert/tyre compound gets rid of some side grip and allows you to push a buggy harder without grip rolling. This setup has consistently given me my best lap time on dry astro BUT self-discipline is essential, the car will still have a lot of side grip so you must do all your braking and jumping in a straight line. Also i've adapted a rear sway bar to fit on the front which makes a difference (0.5mm thicker) and I run hard springs with the shocks on the outer hole on the tower. At this time of year you might also want to get some of these for when it's wet: http://www.racing-cars.com/pp/Produc...rts/U6751.html And some of these for when it's really wet (i.e puddles on track): http://www.racing-cars.com/pp/Produc...rts/U6757.html Hope this helps!
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My feedback thread: http://www.oople.com/forums/showthread.php?t=169737 |
#3
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this is a detailed answer, thanks!
I used to run prepared mini pins probably the best performing tire on short & dry astro, even better when they wear but they are pretty agressive (maybe because of the normal aka inserts and wheels I used?) aka crossbrace are good in hard compound too on astro, that's what I use outdoor at the moment it's an easy to drive tire I'll have to modify the shock position as I didn't touch it for now. As well as shock oils and springs. What oils do you have in your diffs?
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wanted: 1/8 and 1/12 setup stations THE eCAR 2WD l MP9 TKI3 l S350 Evo l MP9E TKI l MBX6 Eco USA l 12R5.2 l SP12X l EMB-1H |
#4
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Quote:
TBH I never had very good results with grinding rows of spikes off minipins, if anything it seemed to make the griproll worse but that may be because even compared to other 1/8th buggies, the Vorza is a big heavy car. When I cut a row of spikes off the rears on my 1/10th ZX5 I could feel the improvement straight away. RE Diffs, I usually run 5k front, 5k or 10k centre and 1k rear, I haven't really experimented much with diff oils but 5k in the centre reduces the likelihood of the car ending up on its roof when you brake hard on the entry into slow corners and also helps if the track is bumpy.
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My feedback thread: http://www.oople.com/forums/showthread.php?t=169737 |
#5
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I could feel the difference when cutting the rows but it needs so much time that I'm looking for an easier solution
maybe these could be good, all new astro/carpet tires (coumpound I would say because the tread is known already) 6mik
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wanted: 1/8 and 1/12 setup stations THE eCAR 2WD l MP9 TKI3 l S350 Evo l MP9E TKI l MBX6 Eco USA l 12R5.2 l SP12X l EMB-1H |
#6
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They look interesting, if you try a set post up on here how well they work
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My feedback thread: http://www.oople.com/forums/showthread.php?t=169737 |
#7
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Quote:
did a few research and here are some general tips to run on astro: - reduce the droop and the ride height to avoid traction roll - incline your shocks (easier to drive car) - use less toe in in the back -> it will free up the rear and make it slide rather than be inconsistent - use thicker sways to reduce the global adherence - use tires with a lot of forward bite but very little side bite ....
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wanted: 1/8 and 1/12 setup stations THE eCAR 2WD l MP9 TKI3 l S350 Evo l MP9E TKI l MBX6 Eco USA l 12R5.2 l SP12X l EMB-1H |
#8
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Beware of general astro setups, not every astro is the same. I didn't know this, until i had seen this myself. Also the cars can make a huge difference, comparing an XRAY with an HPI is a no go for me.
I have driven on astro most of the time, first with an RC8.2E and later with the XB9E. While i could not get the RC8.2E do what i wanted, with the XB9E i improved almost immediately with the basic setup. We most of the time drive Tourex X300 Syntrac (buggy-cup.nl regulations), but when wet soft or super soft. The Mini-Pins i did not try them myself, but as far i can see (on our track), they have high bite, but are unpredictable (unforgiving) even when more then one row is cut in the front or rear. |
#9
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Try a worn set a pins with five or six rows left I leave the car on a dirt set up bar droppin ride height a bit an use trimmed angles in damp
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YZ2 sanwa hi-tec Balls out zx6 Futaba orion sanwa Need a liner resized ? Liars run for cover the truth is taking over!!! |
#10
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Quote:
I agree with the mini pins, they need quite a lot of work to be efficient. The car always felt twitchy with them even if it gets better when they wear out. Maybe I could give the mini spikes a try? I can be very fast on technical tracks but I need to be confident in the car.
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wanted: 1/8 and 1/12 setup stations THE eCAR 2WD l MP9 TKI3 l S350 Evo l MP9E TKI l MBX6 Eco USA l 12R5.2 l SP12X l EMB-1H |
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