RE: .28 in a funfactor? oh dear....  
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RE: .28 in a funfactor? oh dear.... - 7/18/2005 5:45:27 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		lol, nah it was a homemade job rolland, just some stainless wire/rod and a couple of bits from a carb linkage i think... its not on there at the mo - been offroading!. works pretty well - keeping the rear level(ish) helps loads to stop the inside front wheel spinning on the way out of corners. i didnt fit one on the front, doesnt seem to need it - imo.

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       Post #: 51

RE: .28 in a funfactor? oh dear.... - 7/18/2005 5:57:12 PM   
rolland


 

Posts: 794
Joined: 8/15/2004
From: Tacoma, WA, USA
Status: offline 		Thanks I'll figure something out. I mostly race on a dirt oval and a sway bar would help with bringing the back end around and keeping the truck flat through the corners.


rolland

(in reply to poor judgement)
       Post #: 52

RE: .28 in a funfactor? oh dear.... - 7/18/2005 5:57:45 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		sorry mate - didnt see the first post u made...

hope the tmaxx shafts will work out, they will take a lot more hammer than my plastic ones i reckon.

as for going back to 2.2" wheels... i just drilled out my old cen plastic hexes and a set of wheels so i could try them out on the tmaxx shafts... then realised they wont clear the tmaxx hub... oops. maybe possible to make them clear the hubs, as they werent a million miles out. but i see ur point. just bare it in mind if ur gonna use tmaxx hubs also!!

yea.... the expense of those bloody shafts. to be honest i always have at least 2 spare ones - still do! - so i just had to grab another pair off e bay - i figured i was gonna break them anyway, and it felt reeeeaaaaal good cuttin em up. i pay £12-£15 for a pair on e bay, retail they are around £23 a pair... cos of that i dont run them in the rear, i use the dogbones still. on the rally that is.

good luck with the shafts tho rolland, its a real relief to actually be able to trust a set after all those years of breakages!

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       Post #: 53

RE: .28 in a funfactor? oh dear.... - 7/18/2005 6:47:46 PM   
rolland


 

Posts: 794
Joined: 8/15/2004
From: Tacoma, WA, USA
Status: offline 		I have never broken a set so far I guess that I have been real lucky. I have twisted a few dog bones but I'm still on my origanal cvd's. With the OS motor though I don't expect them to live long because they have to be getting weak.
I'm not totaly sure that I am going to use the maxx shafts if I can find something shorter I will try to do that. Ofna makes a cvd to use 17mm hexes I just have to find some pillow ball knuckles.



rolland

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       Post #: 54

RE: .28 in a funfactor? oh dear.... - 7/19/2005 11:31:00 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		hey make sure u have the set screws tight in ur cvs - if u have the setscrew type...

doing a fast pass with my rally, it suddenly locked up and spun past me - the right rear cv pin had worked loose and cut threw the hub from pillow ball to pillow ball. no other drivetrain damage which kinda surprised me. and yes that is surface rust...

still a single speed rally setup, to hell with 2nd gear, i have a 18t 1st gear pinion - works great!

whoops - forgot, pic of typical break in my cv... always the same.

so no, still no engine mounts.


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< Message edited by poor judgement -- 7/19/2005 11:37:06 PM >

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       Post #: 55

RE: .28 in a funfactor? oh dear.... - 7/20/2005 2:56:32 AM   
azzman



Posts: 1652
Joined: 2/22/2005
From: Auckland , NEW ZEALAND
Status: offline 		Hey PJ, I have only had one CVD break there, and that was when the RH/F just caught a stone wall. My breaks have been at the point just before the ball. Or I twist them at the cup end, and sometimes snap them there, but limiting suspension travel in the up direction should aleviate that scenario, those lower arms bend quite a bit (which also means they are forgiving).

< Message edited by azzman -- 7/20/2005 3:09:08 AM >

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       Post #: 56

RE: .28 in a funfactor? oh dear.... - 7/20/2005 2:59:16 AM   
rolland


 

Posts: 794
Joined: 8/15/2004
From: Tacoma, WA, USA
Status: offline 		I cursed myself with my last post. I twisted the cvd's off at the diff cup.
So, now I have a set to try you mod or maybe something different but along the same lines.


rolland

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       Post #: 57

RE: .28 in a funfactor? oh dear.... - 7/20/2005 3:10:52 AM   
azzman



Posts: 1652
Joined: 2/22/2005
From: Auckland , NEW ZEALAND
Status: offline 		Hey Rolland, have you tried the dogbones up front yet?

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       Post #: 58

RE: .28 in a funfactor? oh dear.... - 7/20/2005 5:49:44 AM   
rolland


 

Posts: 794
Joined: 8/15/2004
From: Tacoma, WA, USA
Status: offline 		We must have been posting at the same time I didn't even see your post on breakages. Is that a common place for them to break? This is my first set breaking (thats what I get for racing with a 1/5 scale) and if it is I wonder how hard it would be to strengthen that area.

As far as dogbones in the front go, I like to turn corners. The Savage is setup to use dogbones but I think the MT2's axle stubs wouldn't live all that long, even if they were modded.
Are you using them?


rolland

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       Post #: 59

RE: .28 in a funfactor? oh dear.... - 7/20/2005 4:32:05 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		rolland - yep all of mine that have broken have been on that point, even with 2.2" rally tires and wheels fitted - granted tho, i am an artistic crash master... all have been at a fair turn of speed and have normally involved a large immovable object, was a litter bin this time around that i was using as a corner marker, only 18 innches between the bin and a wall, so i was pushing my luck i guess.

as for strengthening it... i cant see a way myself, what are u thinking?

aha - so u finally snapped a cv!! i couldnt believe u had got away with it for so long. if u need any pics or info on the shaft mod, gimme a shout, but i think its all here on the forum tbh.

the amount of times i have cartwheeled into, over, under and across stuff, while my mates or the missus has had time to say "well i reckon thats a gonna, rob. best find a carrier bag for the bits" before its stopped the cartwheeling, only to find that its still fine, is amazing now those shafts are on. of course its only really necessary if u plan on using tmaxx wheels.

what engine are u running btw rolland? did u go over to the 18cvr-x too?

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RE: .28 in a funfactor? oh dear.... - 7/20/2005 9:22:49 PM   
azzman



Posts: 1652
Joined: 2/22/2005
From: Auckland , NEW ZEALAND
Status: offline 		Rolland: Na I havent tried it yet (dogbones up front).

As for strengthening what we have, what about a heat treatment like heating them up with a gas torch till they are red hot, then dumping them in oil? Im not too sure of the precise process but an engineer would know.

I sort of went down the road of getting some stronger cvd's made but nobody is really interested here in NZ.

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RE: .28 in a funfactor? oh dear.... - 7/21/2005 12:15:32 AM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		did u get any quotes for having them made? just out of interest...

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       Post #: 62

RE: .28 in a funfactor? oh dear.... - 7/22/2005 5:54:44 AM   
rolland


 

Posts: 794
Joined: 8/15/2004
From: Tacoma, WA, USA
Status: offline 		Yes I went to the O.S. When I was looking for pinions one of the hobby shops made me an offer I couldn't say no to.

My immovable object was a 35 pound 1/5 scale. Those things are basically a wall with wheels. They did go through quite abit of abuse first and some really impressive high speed cartwheels. I was starting to think I got some weird experimental cvd or something from CEN.

On the strengthening issue I need to do some looking around but I have the ability to surface harden, temper, and even mig weld, there is also the possibility of having them chromed (might be to expensive) or powder coated. If that is a common place for them to break then the twisting is more than likely the cause and that is what has to be limited. I know of some machinists and cnc guy's, I'll have to talk to them about it. But I'm thinking a quick temper and some surface hardening will help them out alot.



rolland

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       Post #: 63

RE: .28 in a funfactor? oh dear.... - 7/22/2005 1:09:57 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		its worth a try i reckon rolland, just dont go too far and make them too brittle mate.

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       Post #: 64

RE: .28 in a funfactor? oh dear.... - 7/28/2005 3:57:18 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		finally my engine mounts turned up... shame im missing some bits from of the order..

the cen part number is CT040