Radar
New Member
Posts: 38
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Post by Radar on Jun 3, 2006 4:36:17 GMT
Forgive me if this was discussed somewhere else in here, but searching didn't turn up anything. I've tried asking on other forums as well, but other forums lack 4wd knowledge, and are usually full of rude people who just want to tell others they are stupid for asking questions. I assume you Predator forum guys would be the smartest of all when it comes to this 4wd specific stuff  How many of you run a one-way, and what type of track do you use/not use it on? Is it more useful on loose dirt tracks, or on hardpack tracks? I don't know the advantages of one, especially since real cars use the front tyres as the primary means of stopping. That makes me believe a one-way would be a bad idea, but so many people use them, I must be wrong. I ask because I pre-ordered an XRS and am wondering if in the future, once I can afford one, I should get the one-way. Thanks for any info! |
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Post by chris burgess on Jun 3, 2006 7:43:27 GMT
The Preds tend to run a one-way roller on the centre shaft all the time in the UK, but I have heard of one being run with a "fixed" centre shaft, such as you will find on the XRS.
If I understand correctly, a fixed centre shaft, enables you to have more control of the attitude of the car in the air, that is you can adjust the angle of the nose in relation to the ground by jabbing the throttle or putting on the brakes. Accelerate and the nose lifts, brake and the nose dips.
A one way roller will allow your car to corner better and stop it from spinning out as you enter corners whilst applying the brakes too.
Somebody else will be along soon to give you a much better technical description of the differences, but until I wake up properly, that's the best I can do! ;D
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Post by pro4nut on Jun 3, 2006 7:52:17 GMT
Like chris, me still tired, got home from work late last night and then rebuilt my car with the new chassis.........
I have run a one way in all the 4wd off road cars i have owned, (especially losi)i will have a coffee and then explain a bit more
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bigboss
Full Member
preds rule,the others are too slow!
Posts: 196
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Post by bigboss on Jun 3, 2006 8:03:00 GMT
Hi Radar & welcome to Pred UK
One ways-that's a difficult one to explain but I'll try.
Firstly don't assume you need a one way until you've tried the car as it comes (I.E. full time 4WD), as it depends on the track/your preference. We all have a one way in our X10's if we like it or not, it's part of the car, but unlike any other car on the market this one way is tunable (it's called "brake balance" in TTech speak) by moving O-rings (three of them) onto the brake balance we can get more or less of the one way effect. If you don't want too much one way roll all 3 of them on to the brake balance, want a bit more roll one off of it. However we always have an effect.
this is a very clever design & it works like a charm.
Now for the tricky bit: where to use it & what it does:
My previous car was a BJ4 & it came with a one way on the main shaft (in that car a one way diff is also possible, so you can get 2 one ways in the car which means you get more of an effect going on). I found it very hard to use the one way on my track and soon took it out, the car was a lot easier to drive without it.
Basically if the track is slippery you don't want it in your car as it makes the car grippy at the front when "on power" & also when you're coasting. The main problem is that you only have brakes on the rear wheels & the car is hard to control on a technical track with a lot of slow turns( on the X10 one way it is tunable to remind you however, on all other manufacturers it's either in the car or it isn't).
" I must be wrong"- well not necessarily, Like I said:" it's depends on the track and/or your driving style, personal preference.
Don't think your new car is anything like all the others on the track, it is not, it is unique and so is the set up of it, Others might need a one way, you may not.
One ways work best on fast flowing tracks (Americans call it "blue groove") with a lot of grip. just different terminology I guess.
before you decide on ordering the one way for your car give them a call & talk to Gavin. He will know what you will need to buy, If I'm not mistaken you will need a complete carbon main shaft with all the fittings to go with it (from the spur all the way to the front diff) & that "ain't" cheap.
Let us know how you're doing once you get the car.
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Post by Northy on Jun 3, 2006 8:35:35 GMT
Sorry, can't really help on this one as I've never run a Pred without a 1 way! Got me thinking though if I should try it!  I do however nearly always run 3 or 4 O rings on my brake balancer! Indoors I still felt I didn't have enough front brakes and would have liked a locked 1 way to try. So perhaps it will be good on US tracks. Give it a go and let us all know! Cheers, G |
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Radar
New Member
Posts: 38
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Post by Radar on Jun 3, 2006 20:12:14 GMT
Thanks, everyone! I used to run a Losi XXX-4 without a one-way, and never really saw a need for one, but I don't really know much. I run in very loose, wet dirt, though. Burms would form during the course of a race, so in a way, it was very grippy dirt, no spinning out. Also had very large jumps, so attitude control was an absolute must. I suppose that's part of the reason I never saw a need. I'm sure once I can afford it, I will buy one for my car, and see how it goes. I just don't have a spare 100 dollars right nowl. I don't even have a motor or esc for my car yet, lol. If you guys think of any more info, I'd be glad to hear Oh, and is there any chance you guys know of a company that makes a very aggressive (more aggressive than IFMAR Studs, something along the lines of step-pins) front? Or of a better place for me to ask this question? I tried Rctech but a couple guys tried to start a fight with me because I didn't think Schumachers were aggressive enough... Thanks again! |
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Post by silversnow on Jun 3, 2006 20:26:44 GMT
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Post by DirtRacer on Jun 3, 2006 20:48:48 GMT
Thats a long way away and expensive just for tyres coming all the way from the uk isnt it??? besides, pro line and losi tyres are way better and economical to purchase in the usa |
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Post by DirtRacer on Jun 3, 2006 22:24:00 GMT
Listen dude, im not trying to knock you or what ttech told you about ballistic tyres, their good dont get me wrong. I used to use those when i was back in the uk when everybody would be using proline or losi's simply because i could'nt afford them. All im saying is, it would work out cheaper and since i regard the american tyres far superior for the tracks in the us i would go for them accordingly, now if you wanna be different then so be it.
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Post by pro4nut on Jun 3, 2006 22:26:09 GMT
Front step pins have to be cut and shut takes ages but wth care is not that hard, just made a set. A UK mag actually shows you how to do this in this months issue if you are interested. Really you need to cut the tyre around the middle and then remove 2 rows of spikes from each side then glue the now smaller sections together, good luck.
As far as the last comments go from both sides that seemed a little 'snipey' and overall a touch over the top.
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Radar
New Member
Posts: 38
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Post by Radar on Jun 4, 2006 1:36:24 GMT
Does anyone, perhaps Silversnow, have a better picture of those Ballistic Minispikes, or know if they are less/more aggressive than Losi IFMAR Studs?
The list of tires appears to be Ballistic, Panther, Schumacher, Losi, and Pro-line. Any other companies I have yet to investigate?
Pro4nut, could you direct me to, or show me, the magazine with the article? I can probably do a fairly good job of cutting on my own, but I would rather have a guide just incase.
Thanks again, everyone!
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Post by silversnow on Jun 4, 2006 2:04:32 GMT
I can give you a better pic of them because I have them on my car. But I do not know how to post a pic on this forum. so I will e-mail it to you.
Forrest
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Radar
New Member
Posts: 38
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Post by Radar on Jun 4, 2006 2:32:53 GMT
Thanks, Silversnow!
Those look to be the best tires I've seen so far actually, much better than IFMAR Studs.
Could someone explain to me the difference between their green, pink, and blue? And the difference between that and Losi's Silver and Red, or Pro-line's M2 and M3?
Thanks guys for everything!
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Post by silversnow on Jun 4, 2006 3:07:11 GMT
Rader, I e-mail dcracing about what the difference is. And i could not tell you for sure, all i know is that my tires are the pinks and thay are for mid to loose dirt tracks.
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Post by Cooper on Jun 4, 2006 6:35:34 GMT
EDIT: last chance.....
keep it friendly now!
*reopened*
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