HPI Vorza Flux 1/8 E-Buggy Thread
#3226
Finally put in some decent run last weekend ... this is a really torquey car...and only on 4S 30C... quite a handful already. I can understand why some of you are spinning it. I had a little trouble oversteering myself when i kickdown the power on the start straight. Had to backoff on the power...I read somewhere I can cure this by stiffening up the front shocks?
Was racing a kyosho VE and had a hard time keeping up... as he could apply more consistent power(a better way of saying the vorza driver sucked )
On the rebound rate... after giving it some thought.. I concluded must be the springs... the buggy yellows must be a little too weak for the weight of the vorza... so I am back on the blues now with stock absorbers without any spacers. Its just soft enough without being overly bumpy.. and the rebound is much better...will up the oils to 60wt for a little more cushion OR swap back the caster longer shock next round. Diffs I am running 5-5-5 next will try 5-5-2
So far no issue with the jumps.. it jumps great for such a heavy car ... just remember to give it enough speed...
Next week hopefully will have a caster joining the race too... huhu Cant wait for the 3way shootout...
Was racing a kyosho VE and had a hard time keeping up... as he could apply more consistent power(a better way of saying the vorza driver sucked )
On the rebound rate... after giving it some thought.. I concluded must be the springs... the buggy yellows must be a little too weak for the weight of the vorza... so I am back on the blues now with stock absorbers without any spacers. Its just soft enough without being overly bumpy.. and the rebound is much better...will up the oils to 60wt for a little more cushion OR swap back the caster longer shock next round. Diffs I am running 5-5-5 next will try 5-5-2
So far no issue with the jumps.. it jumps great for such a heavy car ... just remember to give it enough speed...
Next week hopefully will have a caster joining the race too... huhu Cant wait for the 3way shootout...
#3227
I am going to try 5,000 center - 5,000 front - 3,000 rear. Still really new at all this but my main issue during the race is if there is a small bump the car will almost turn around. To me it seems like maybe the 100,000 diff fluid is causing the tires on the ground to pull to one side instead of working the diff, and/or a combination of no side bite in the tires? I maybe way off base but I watch car after car soak up those rough areas and I was spending time trying to steer clear of the 2 areas of the track that seemed to grab my car and spin it. But once I started staying wide or taking the inside line around the 2 spots I could maintain my pace. Just racing the clock trying to put up the same lap times each lap.
#3228
#3230
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I am running 4s (2 - 2s 5000mah Turnigy 30-40c hardcases) and stock 15t pinion. The car will come up to speed fine. If I come into a rough section and only the one side of the car gets into bumps the car will pull (almost u-turn) in the direction of the bumps. Thought maybe it was the 100,000 diff oil not letting the diff slip (diff action) and send power to alternate wheels?? I may be WAY off base but I am going to start with what I see most people running at tracks (somewhere around 5-5-3).
Last edited by PorTX; 02-28-2011 at 08:44 AM.
#3231
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I am running 4s (2 - 2s 5000mah Turnigy 30-40c hardcases) and stock 15t pinion. The car will come up to speed find. If I come into a rough section and only the one side of the car gets into bumps the car will pull (almost u-turn) in the direction of the bumps. Thought maybe it was the 100,000 diff oil not letting the diff slip (diff action) and send power to alternate wheels?? I may be WAY off base but I am going to start with what I see most people running at tracks (somewhere around 5-5-3).
#3232
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The bumps are large enough that it is either dragging the chassis and pulling the car to one side. Or with no rear side bite (see tire pictures on pg 215) when the car is hitting the washout bump that is at an angle across the race line, the forward momentum and no side bite is letting the car slip to one side in the rear? Like I said I may be way off and I probably am. But I guess the way to tackle both of these is to go to a more normal diff oil in the center and, of course put on new tires!
#3233
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On a really hard pack track that has a lot of marbles just outside the race line, would you want a car that has more front bite? Seems like 5-5-5 would be equal power to all 4 wheels. If the rear was getting the same power as the front, would the front want to push on a loose track? Again I maybe way off, that is why I talk about here in the thread so that I can ask and learn.
#3235
On a really hard pack track that has a lot of marbles just outside the race line, would you want a car that has more front bite? Seems like 5-5-5 would be equal power to all 4 wheels. If the rear was getting the same power as the front, would the front want to push on a loose track? Again I maybe way off, that is why I talk about here in the thread so that I can ask and learn.
Besides the diffs, I've found that a softer front spring helps, but with the sacrifice that you'll bottom more. Keep all of the moving parts lubed up so they can move freely.
ben
#3236
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I have found 5 front, 5 center, 2 rear to work the best for me. The Vorza doesn't have as much steering as other buggies. Not sure why to be honest. The Ve8 is very similar, but has more steering.
Besides the diffs, I've found that a softer front spring helps, but with the sacrifice that you'll bottom more. Keep all of the moving parts lubed up so they can move freely.
ben
Besides the diffs, I've found that a softer front spring helps, but with the sacrifice that you'll bottom more. Keep all of the moving parts lubed up so they can move freely.
ben
#3237
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Join Date: May 2008
Location: Formerly Portland TX, Now Amarillo
Posts: 1,239
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I have found 5 front, 5 center, 2 rear to work the best for me. The Vorza doesn't have as much steering as other buggies. Not sure why to be honest. The Ve8 is very similar, but has more steering.
Besides the diffs, I've found that a softer front spring helps, but with the sacrifice that you'll bottom more. Keep all of the moving parts lubed up so they can move freely.
ben
Besides the diffs, I've found that a softer front spring helps, but with the sacrifice that you'll bottom more. Keep all of the moving parts lubed up so they can move freely.
ben
#3238
Tech Fanatic
iTrader: (2)
Finally put in some decent run last weekend ... this is a really torquey car...and only on 4S 30C... quite a handful already. I can understand why some of you are spinning it. I had a little trouble oversteering myself when i kickdown the power on the start straight. Had to backoff on the power...I read somewhere I can cure this by stiffening up the front shocks?
Was racing a kyosho VE and had a hard time keeping up... as he could apply more consistent power(a better way of saying the vorza driver sucked )
On the rebound rate... after giving it some thought.. I concluded must be the springs... the buggy yellows must be a little too weak for the weight of the vorza... so I am back on the blues now with stock absorbers without any spacers. Its just soft enough without being overly bumpy.. and the rebound is much better...will up the oils to 60wt for a little more cushion OR swap back the caster longer shock next round. Diffs I am running 5-5-5 next will try 5-5-2
So far no issue with the jumps.. it jumps great for such a heavy car ... just remember to give it enough speed...
Next week hopefully will have a caster joining the race too... huhu Cant wait for the 3way shootout...
Was racing a kyosho VE and had a hard time keeping up... as he could apply more consistent power(a better way of saying the vorza driver sucked )
On the rebound rate... after giving it some thought.. I concluded must be the springs... the buggy yellows must be a little too weak for the weight of the vorza... so I am back on the blues now with stock absorbers without any spacers. Its just soft enough without being overly bumpy.. and the rebound is much better...will up the oils to 60wt for a little more cushion OR swap back the caster longer shock next round. Diffs I am running 5-5-5 next will try 5-5-2
So far no issue with the jumps.. it jumps great for such a heavy car ... just remember to give it enough speed...
Next week hopefully will have a caster joining the race too... huhu Cant wait for the 3way shootout...
#3239
Tech Fanatic
iTrader: (2)
The bumps are large enough that it is either dragging the chassis and pulling the car to one side. Or with no rear side bite (see tire pictures on pg 215) when the car is hitting the washout bump that is at an angle across the race line, the forward momentum and no side bite is letting the car slip to one side in the rear? Like I said I may be way off and I probably am. But I guess the way to tackle both of these is to go to a more normal diff oil in the center and, of course put on new tires!
and yes a pro racer needs to address your problems.. MIGHT be that the servo isnt strong or fast enough to steer it back true.. not sure also..
#3240
Tech Fanatic
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bigben bro.. i've got a deal for a caster F8T almost pro kit..
tenshock 2200kv motor, 150A HW esc, sanwa 29kg servo.. excellent price i guess.. lols.. the tenshock motor went for 1 or 2 runs at the start of the year only..
BUT! when u see photos, it'd be with the Vorza i have.. LOL!!
And another thing.. im gona sell my TX and RX to downgrade.. 4pk was abit overkill for an EP car.. but its a superb radio.. just a lil short on cash as well..
tenshock 2200kv motor, 150A HW esc, sanwa 29kg servo.. excellent price i guess.. lols.. the tenshock motor went for 1 or 2 runs at the start of the year only..
BUT! when u see photos, it'd be with the Vorza i have.. LOL!!
And another thing.. im gona sell my TX and RX to downgrade.. 4pk was abit overkill for an EP car.. but its a superb radio.. just a lil short on cash as well..