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Posted
As an occassional runner / shelfer i know what motor i'd want in it - Dynatech

But for regular use then something less maintenance intensive is of order - i'd be going brushless personally - if you are happy to run a vintage buggy and its pretty hard then why not give it the best opportunity :rolleyes:

The other problem is money, going brushless means a new ESC not to mention the motor.

Posted

Well for a cheap, reasonably fast and rebuildable motor then the Ansmann Launcher motors are OK - i have a 17x2 in a Blitzer Beetle and its pretty quick. At £15 each they'll be a notch up from a sport tuned and not cost you the earth, whatever flavour you choose..

http://www.modelsport.co.uk/index.php?sear...string=launcher

Whether a £15 motor belongs in a £200 car is down to personal choice and budget

Posted

Yeah, that might be going a little to far the other way. Might have to look a bit more into some of the brushless combos. Its tricky to know what to go with.

Posted
Yeah, that might be going a little to far the other way. Might have to look a bit more into some of the brushless combos. Its tricky to know what to go with.

I had the same decision to make with my runner Egress just a couple of weeks ago. I finally decided on a TZ Super Stock which I am very happy with. Mine is running a 16t steel pinion and 3600 mah NiMh battery. Performance is simply awesome without causing too much stress on either the motor or the 22 year old drivetrain. This set up on the Egress is fast enough but still controllable and accurate. I also like the idea of running conventional brushed motors in vintage runners simply because it just seems more correct to me.

I considered going 13.5t brushless but decided against it. I think brushless is better suited to new models that can easily take LiPo batteries like my DB01 and DT02. Also I don't have to worry too much about availability and cost of replacement parts if I break anything. If you are going to invest in a brushless combo I just think it would be more fun in something that you can drive hard (like a DB01 for example).

Posted

Thanks for all the advice everyone, I went with a Super Stock RZ motor and a 16t pinion gear.

For now though, after testing the 16t, I'm sticking with the 20t that was on the Sport Tuned as it has a better top end.

Sport Tuned. 20t pinion - 22mph*

Super Stock RZ. 16t pinion - 19mph.

Super Stock RZ. 20t pinion - 26mph.

*The Super Stock wasn't tested at the same place the Sport Tuned was, doing that tomorrow morning

Need to see which one works best when I get a chance to take it to the track.

p.s I also found the spring I'd lost as well, bonus.

Posted

Yeah, I think I run my TZ with a DF02-kit 18T steel pinion. The car doesn't have much top-speed, but it's only used for off-road (no speed tests). The massive punch is much more useful when driving a off-road or on a tight track. Also, the steel pinion lasts much much longer.

BTW: Robinson racing sells "metric 48-pitch" steel-pinions that can be used on Tamiyas. They are really .6module which is what the AV & HP pinions are. Tamiya's HP pinions are also steel .6mod, but they are only the smaller pinions for very high rpm motors. Actually I just had a look and it seems they finally changed the name to .6module.

http://www.robinsonracing.com/catalog/32pi...ion.html#metric

Posted

OK.

Tested it again this morning and got 28mph, all is good and I had a brain wave :o I finish work at 2pm and there is a wood near where I live with a few open areas and some jumps that some mountain bikers had made, perfect, no problem.........WRONG!

I was literally out of control, the car went wherever it wanted, I would clip some leaves and the car was dragged into more and disappearing in a mist of leaves and sticks, it was extremely twitchy. The open areas were suddenly crowed with trees and roots and sticks. Sticks isn't a strong enough word, as far as the Egress was concerned they were logs.

I nose dived the first jump that went down a bank (what was I thinking) and it tumbled end over end and putting a huge crack in the rear wing. I barrel rolled down two massive banks, hit roots that put the car into orbit and lost a rear wheel nut putting the car on 3 wheels.

I didn't even finish the battery, and I went with two. I was too nervous to continue so I came home for a lie down :unsure:

post-39047-1331913668_thumb.jpg

Posted
I was literally out of control, the car went wherever it wanted, I would clip some leaves and the car was dragged into more and disappearing in a mist of leaves and sticks, it was extremely twitchy.

Not a good start so. I'm guessing that it's fast, maybe a little too fast for the area it had haha. To me it sounds like it needs a bit of suspension set-up to be done on it? Caster and Toe settings perhaps.

Posted
OK.

Tested it again this morning and got 28mph, all is good and I had a brain wave :unsure: I finish work at 2pm and there is a wood near where I live with a few open areas and some jumps that some mountain bikers had made, perfect, no problem.........WRONG!

I was literally out of control, the car went wherever it wanted, I would clip some leaves and the car was dragged into more and disappearing in a mist of leaves and sticks, it was extremely twitchy. The open areas were suddenly crowed with trees and roots and sticks. Sticks isn't a strong enough word, as far as the Egress was concerned they were logs.

I nose dived the first jump that went down a bank (what was I thinking) and it tumbled end over end and putting a huge crack in the rear wing. I barrel rolled down two massive banks, hit roots that put the car into orbit and lost a rear wheel nut putting the car on 3 wheels.

I didn't even finish the battery, and I went with two. I was too nervous to continue so I came home for a lie down :lol:

I've had similar times with a buggy champ . On a 9t 4370kv brushless its just no fun at all . Its too fast and virtually undriveable . In the end i've gone back to a sport can . Still run it on 2s lipo to get good run times but its way better being slower . I'd gear it down and stick with a sport or BZ . Just my opinion .

  • 2 weeks later...
Posted

Finally got it to the track on Sunday to see how it would go.

Was surprised by the track, not as bumpy as I thought it was going to be or the Egress handled it a little better than I thought, it was a 1/8 nitro track. I managed to avoid the nitros well enough but the car still over steered, even with the dual rates on my controller it was twitchy all the way through a corner, plenty of spins.

I did have a problem; I didn't think that the BF4 damper mount base was really that important, I was wrong. After a few big hits the metal damper arms BF8 and 9 moved (because the base wasn't there to stop them rotating around the screw) and this meant that the shock popped off the ball connector. I tried to fix it with some washers at the track but it only lasted a few more laps and they popped off again.

All in all I had a lot of fun and learnt some lessons, it jumps pretty flat and level at speed but tended to nose dive at slower speeds. It held up really well, nothing broke just a few loose screws to keep an eye out for.

Any setup suggestions to would be welcome.

post-39047-1332879686_thumb.jpg

Posted

What are you running as far as spur gear setup (locked, one-way, ball-diff)?

I've ran my Vanquish on the track with tripple ball diffs and it seems to handle quite well. Not twitchy at all. Of course that car doesn't have the same spring & shock setup as the Egress/2001 either. You could always try softer rear springs and/or stiffer front springs to help calm the car down.

Posted

Firstly - your eggy looks bloomin' fantastic in action !

Secondly, an observation based purely on that photo - you look to have a lot of negative camber on the front wheels, but almost none, if not positive camber on the rears. I'd set some negative camber on the rears and straighten up the fronts - see how it handles then.

Posted

I find a perfect balance in my Egress using the Avante center ball diff.

A stiffer spring on front will help with diving at low speed jumps (or softer rear spring).

Max

Posted

It is still using the Avante 2001 gears, I was wondering if it was sending too much power to just the rears but it over steers on corner entry and exit....and the middle, lol.

The camber is the easiest so I'll give that a go, I did straighten things up after the first try but I could have gone to far with the rears but not enough with the fronts. When it was sitting on my desk it all seemed right but it does look much more front camber than I thought.

I've got some stiffer front springs as well so I'll check that.

Posted
It is still using the Avante 2001 gears, I was wondering if it was sending too much power to just the rears but it over steers on corner entry and exit....and the middle, lol.

The camber is the easiest so I'll give that a go, I did straighten things up after the first try but I could have gone to far with the rears but not enough with the fronts. When it was sitting on my desk it all seemed right but it does look much more front camber than I thought.

I've got some stiffer front springs as well so I'll check that.

Yeah, I would suspect the springs. What springs are you using? Open diffs usually just kill power output in the turns rather than induce oversteer. My Vanquish with stock diffs would not oversteer going forward no matter what.

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