B44 reborn as Fyra-4

[West Ridge Racing]

I wanted to do something different. I know, there is a car called MID44 out there but I wanted to do my own version;)

First of. My own designed shell called Pioneer One.
http://rsb.se/gallery/files/2/6/4/6/fyra-byggtr_d_025.jpg

Hate those blue nuts....come on! 4 nuts and two braces.
http://rsb.se/gallery/files/2/6/4/6/fyra-byggtr_d_040.jpg
http://rsb.se/gallery/files/2/6/4/6/fyra-byggtr_d_027.jpg

Weight system without any tape. Choose between 0, 20, 40, 60, 80 or 100 grams of additional weights in the rear.
http://rsb.se/gallery/files/2/6/4/6/fyra-byggtr_d_036.jpg

Easy access. Just remove the the two left over thumb screws in the middle to add or remove 10gram plates.

Motor moved forward by 20mm and lipos by 5mm. Switched sides on the motor because Kyosho and Durango are right;)
http://rsb.se/gallery/files/2/6/4/6/fyra-byggtr_d_026.jpg
Pic Above.
Two different rear top plates were made. One stiff and one soft. This is the soft one.

Fore more flex because we like it on loose dirt track like we got up here in the north where its cold.
http://rsb.se/gallery/files/2/6/4/6/fyra-byggtr_d_031.jpg

Comes of as one unit. remove only the two nuts and the whole thing comes of without the need of removing any tray. We like those up here where it is cold and where the tracks are loose..
http://rsb.se/gallery/files/2/6/4/6/fyra-byggtr_d_034.jpg

What do you think? Nice?

I think so. Premier at EOS 1-3 of April.

[Whiskers]

That battery strap system looks ace! :thumbsup:

[coleman758]

I will have one of those bodys!

[Whiskers]

I will have one of those bodys!

You getting a B44 then?! :thumbsup:

[Tom3012]

Smart work mate! I like it!! :thumbsup:

[mattym0310]

very nice, have you tested it at all yet? What are you hoping to achieve from the re-design? :)

[West Ridge Racing]

Thanks for your nice comments:thumbsup:

Just finished it up today and I am preparing for the big race this weekend. Know it will run well.
If it is a success I will have the whole conversion made up in kits with all the parts needed to do this mod. I have a guy that can preform all the milling locally and with great precision. This I had made at my friends place but he does not what to make them in any larger quantities understandably.
The metal parts will be in stainless steel instead of brass. Much easier to manufacture with laser cutting and cheaper. It even looks better than brass. Has got the same weight more or less.

The shells will be starting to be produced after everything with the car is tested.

Alex Hofvander

[West Ridge Racing]

very nice, have you tested it at all yet? What are you hoping to achieve from the re-design? :)

The big test will be this weekend and the idea with the conversion is to make the car more easy to handle on bumpy loose dirt tracks like the ones we race on. Due to the added flex it will be more forgiving when slippery.
The dream would be to let Paul Bradby try it out on the race but that is only dreaming;)
I know a very gifted team driver for team associated here that will test and say what he thinks of it.

Gonna let you all know.
http://www.qtl.co.il/img/copy.pnghttp://www.google.com/favicon.ico (http://www.google.com/search?q=driver%20here%0D%0A)http://www.qtl.co.il/img/trans.png

[mr. ed]

Very intelligent your battery system :thumbsup: and the body looks ace too!

As far as the other hop-ups go: I'm not a b44 owner so, difficult to judge.

[mattym0310]

sounds fair enough, will look forward to hearing how it goes! :)

[till]

very very nice shell !!!
the hole car has some nice ideas.

but theres one thing i´d like to know, whats the advantage of mounting the motor on the left??

[West Ridge Racing]

Glad you asked Till:)

If you have noticed The Durango Dex410 and The Kyosho Lazer FS series have the motor mounted so the motor housing counter rotates towards the centre of the chassis instead to the right edge of the chassis as the original design does.
I asked Durango about this fact and that is why they did it. I am of The same opinion. They also said in the same reply that it is only effektive when during acceleration and not when up to speed. Then it did not matter as much. The rotor and centre shaft cancel each other out but The third factor is the housing itself. Initial acceleration and when the car is in The air it can help. It was possible to do this mod so I did it.
The wheel carry a lot of mass so they are more important balacing the car in the air.
So all in all, that is not The most important mod but I like the Idea that both Kyosho and Durango had so I copied.
The forward motor thing is also to make it more like Lazer or Tamiya 502 or Dex410. I find them to handle bumps better than B44.
I found all my insperation from those three cars.

[coleman758]

You getting a B44 then?! :thumbsup:

I think a B-max is on the cards, but the b-max body is awful!

[chokoboy]

I think a B-max is on the cards, but the b-max body is awful!

If u don't like the original shell, u have 3 others to choose from!

Looking forward to hear how it does at the EOS pilot W R R!

[till]

Glad you asked Till:)

If you have noticed The Durango Dex410 and The Kyosho Lazer FS series have the motor mounted so the motor housing counter rotates towards the centre of the chassis instead to the right edge of the chassis as the original design does.
I asked Durango about this fact and that is why they did it. I am of The same opinion. They also said in the same reply that it is only effektive when during acceleration and not when up to speed. Then it did not matter as much. The rotor and centre shaft cancel each other out but The third factor is the housing itself. Initial acceleration and when the car is in The air it can help. It was possible to do this mod so I did it.
The wheel carry a lot of mass so they are more important balacing the car in the air.
So all in all, that is not The most important mod but I like the Idea that both Kyosho and Durango had so I copied.
The forward motor thing is also to make it more like Lazer or Tamiya 502 or Dex410. I find them to handle bumps better than B44.
I found all my insperation from those three cars.

Thanks for your infos!! very intresting so i may have to mod my BMax, but I think it has enaugh felx =)

[West Ridge Racing]

No problems Till;)

As it looks when looking at the training heats at Eos I will have the whole elite with Lee, Cavalieri and the other big boy marshalling for me.
Doh!!! Better preform then;)

Pic. Finally done last night with installation of the electrics. Tighter but should work with any gear. A low profile servo is almost a must have.
http://rsb.se/gallery/files/2/6/4/6/dsc00032.jpg

[discothesnake]

This is on of the nicest mods i have seen on here. Almost makes me wish i had kept my 44......

[SHY]

Very, very nice work! :thumbsup:

Ingenious CRC 1:12 stylee battery straps!

Only thing you should beware of is that the batteries can be thrown around quite a bit if there's a hard impact. On the 1:12 the rear damper got bent by the batteries giving it a knock... LiPos are much lighter than NiMH, so not a big problem anymore though...

That weight adding system is just perfect!!! :thumbsup:

[West Ridge Racing]

I Really enjoy your nice comments. Thank you.

You are so correct SHY. I nicked many ideas from other cars and among them the CRC. Have owned almost every eletric car out there hehe.

The weight system is all mine though. Invisiable functional lowest possible weights. When the packs are in you cant spot them at all.

[SHY]

I Really enjoy your nice comments. Thank you.

You are so correct SHY. I nicked many ideas from other cars and among them the CRC. Have owned almost every eletric car out there hehe.

The weight system is all mine though. Invisiable functional lowest possible weights. When the packs are in you cant spot them at all.

Let me know when it's ready for sale, I'd love one of those!

[West Ridge Racing]

No problems SHY. Will be glad to help out. The fist thing I am going to test is how The new motor placement functions in reality and if The flex system workshops well with the two different rear plates.

The initial idea with the easy removable lipo tray was that it was meant to be 12mm longer than stock ones so you could lift them up and switch sides with each other. By that the lipos could be moved to front or rear position very easy without the need of removing the posts, only the 4 nuts. 2 on each side. The lipotrays would of course look a little bit different with 12mm more Cf left at one side. This idea came from looking at a Tamiya 502 where you can move the lipos back and fourth.
Then I skipped this because the time frame for finishing the kit for Eos was to close. But if that feature are wanted, I will make it for production kits.

[West Ridge Racing]

Here is a pic of what I mean. The whole tray is one unit and is lifted straight up without the need of removing the battery posts that is places in a fixed position 12mm further appart than stock position. Just switch sides and the battery shifts position on the chassis to play around with weight distribution.

The same goes for the 10 gram plates that can be placed differently depending how you want your balance. If you don't use all of them of course;)
http://www.oople.com/forums/picture.php?albumid=640&pictureid=3956

[SHY]

It's all good! I can tell you that a MiD44 or an Atomized B44 (A-C) does handle excellent on loose & bumpy tracks! Very much like a XX-4.

BUT - you can't have the cake and eat it! I much prefer the std. B44 on astro turf tracks, which we more or less exclusively use here in Norway now. It just has much more steering (=faster) than a front-heavy car. And astro tracks are fairly flat as well, so that great bump handling is not really needed there.

[Rebelrc]

Nice car and great ideas!
Loving the correct motor positioning ( predator did it first )
Very professional

[West Ridge Racing]

Big thanks Rebel!!!!
Finally someone that thinks The way I do about The motor position;)

Alex

Typing on Iphone. Excuse mi grammmmar herr annd tere;)

[West Ridge Racing]

The car before my mod:woot:
http://rsb.se/gallery/files/2/6/4/6/dsc00034.jpg

[stoff]

Your cambers a bit off buddy

[West Ridge Racing]

Yes, saw that just now. Gonna fix that right away mate:)

[West Ridge Racing]

It's all good! I can tell you that a MiD44 or an Atomized B44 (A-C) does handle excellent on loose & bumpy tracks! Very much like a XX-4.

BUT - you can't have the cake and eat it! I much prefer the std. B44 on astro turf tracks, which we more or less exclusively use here in Norway now. It just has much more steering (=faster) than a front-heavy car. And astro tracks are fairly flat as well, so that great bump handling is not really needed there.

Starting to look like that here i Sweden too but my local astro track is rather bumpy and so is the one in Stockholm. Not turf exclusive here yet and dont think it ever will be hopefully.
Have designed a front wing for the B44 also. Called halfpipe. Wonder why;) it actually covers the whole front of the shock tower and bends over in a halfpipe shape. Looks really cool cuz I painted it. Protects the tower and the shock caps from both scratches and impact to The shock caps. No pic just yet. Sorry.

[Oliv996]

Very nice job you've done! I love the body shell, much more attractive than the "bulldog" style that coming out these days.....

The LiPo straps are very clever system too ;)

[West Ridge Racing]

Very nice job you've done! I love the body shell, much more attractive than the "bulldog" style that coming out these days.....

The LiPo straps are very clever system too ;)

Yes thank you! When the shells coming out these days are as ugly as the are and there is nothing else to choose from. I just had to make my own ha ha. Love the Azarashi Tateego but 50$ a pop +shipping is not worth it from Japan. Now I can Vacuum form as many as I want. Starting that next week. Got some people wanting one or two;)

Are you not involved in the MID44 project? Thanks to that car I build my own. Inspiration sort of speak:)

[nicVEGAchildJR]

do you have to reverse the motor because you have moved it to the other side

[JensK]

Good job :thumbsup:

Have made some cars on my own in the past so I know how much work this is.

Car looks really good.
Congrats!!

[Rebelrc]

Nickvega it's the same direction for the motor;)

[West Ridge Racing]

If Anybody is keen to know more about how things develope during The race I am at, ad My nick on Facebook. Nick Rc Alex and My avatar is The brick B44 pic above;)

Alex

[West Ridge Racing]

My driving skills were not there with me today but I am improving both The car and my self;). The lipo system worked flawlessly all day and it is à big help. Even RedRc took à peak at My ride today and poster Some pics on their site.

[mr. ed]

keep it up!
Been meaning to ask: what does Fyra stand for: 4 in Swedish?

[West Ridge Racing]

keep it up!
Been meaning to ask: what does Fyra stand for: 4 in Swedish?

You are correct mate:). Nifty or what ha ha!

[West Ridge Racing]

Did not go as planed for me at The race but cant blame the car really. It was dialed after a few practice runs but I was not. Too much to think about and not really there mentaly. Got à lot of positive feedback from people and both the lipo strap system and weight system worked perfectly all weekend. No issues what so ever. More than pleased. Drove home early the 712km on sunday because I bought a puppy!!! Was not the initial plan but life throws curvballs at you sometimes;)

Now Durango geardiffs Will be modded into the Fyra-4;)

[Hog]

Now Durango geardiffs Will be modded into the Fyra-4;)

Now THAT I will be reading with interest :thumbsup:

[West Ridge Racing]

Now THAT I will be reading with interest :thumbsup:

Has already been done mate. Only copying this mod. :thumbsup:

But I will show in this thread anyway.

Alex

[Hog]

I know it had been done, just don't remember seeing a clear "how to" on the matter. I have access to lathes etc so just need to know what needs to be made for the conversion.

[West Ridge Racing]

Ah, I see;)
Only seen pics too but it would of been nice with some messurements also. Only knows what it looks like and have to figure out the rest by my self.
But everything seems like it will be possible.
Thank you for your intrest in this mod:)

Looks like the bearings are standard 15x10x4 bearings but with a outer thin ring to make the outer diameter wider. Think I can remove those when the bearings need replacement. If only someone could manufacture those...

[Hog]

Do you have the exact dimensions of the sleeves? May be able to assist - for a prototype at least.

[West Ridge Racing]

Yes sure:)
O: 15.88mm
I: 15mm
W: 4mm

Would be awesom. If you do them, I think a lot more people will do this. The bearings seems to be the big issue otherwise.

[Hog]

Jesus! 0.88mm thick! Think my lathe may be a bit overkill - it's got a 5ft bed.

I'll make some enquiries though - any idea of material? Will ally do or would steel be better?

[West Ridge Racing]

Here`s a pic.

http://www.oople.com/forums/picture.php?albumid=640&pictureid=3974

[West Ridge Racing]

Jesus! 0.88mm thick! Think my lathe may be a bit overkill - it's got a 5ft bed.

I'll make some enquiries though - any idea of material? Will ally do or would steel be better?

Yes a little bit thin.

It is steel but think ally will do fine. Non moving part and only for support. No real heat to speak of either that can make a difference. You are the guy with the lathe and the experience;)

[Hog]

Need access to a CNC machine for that - trying to turn down to .44mm by hand or eye is going to be nigh on impossible to get accurate time and time again.

Leave it with me and I'll come back to you.

[West Ridge Racing]

Thank you mate. I will be keeping an eye out. Just waiting now for the parts from Durango and Associated to arrive so the mod can proceed.

[Cream]

Yes sure:)
O: 15.88mm
I: 15mm
W: 4mm

Would be awesom. If you do them, I think a lot more people will do this. The bearings seems to be the big issue otherwise.

Just for the record, 15.875mm is 5/8" diameter. So it's 5/8" bar drilled and reamed 15mm.

[Cream]

£5 each plus postage if your interested?

[West Ridge Racing]

£5 each plus postage if your interested?

Yes of course I would be. Going to go with The bearings I have got cuz they are in good shape and then see how everything goes. Then it would be a good thing for me and others.
Thanks mate. Two guys engaged in this project now:)

BTW, I saw your work in your links and man you make nice things:drool::thumbsup:

[Cream]

How many do you want/need?

[Hog]

I've contacted a local firm to see if they will do me a sample batch,and to get prices should it become an ongoing thing.

Just thought they may be able to do a bulk order and bring the price right down?

[West Ridge Racing]

It all sounds amazing and from my part I will make the diff mod happen first with the stuff I have got. I have got the correct ball bearings right now. So I am good for the moment.
But if this is the only thing stopping more people to mod their B44s then we should investigate if there is a market for those sleeves to manufactured in larger quantities. Rather costly mod with two Durango diffs and bevelgears.

With the money I put into this Fyra-4 project I could of run three classes instead of the single one I do now so 20£ is no issue for me at this time. Anything to make the car all my own.

But if any of you guys make some research and can make a complete kit for anyone to buy, I think a lot of people would be interested.

Kit:
2x Durango gear diff
2x modified durango bevel gears
2x modified Associated cva axles
2x pins for bavelgears
4x 10x15x4mm ball bearings with sleeves

Really appreciate your efforts and I will be in touch regarding the sleeves cuz I will do some research on my own back in my play yard.

Alex

[Cream]

LOL, So you don't actually need these then :)

Oh well that will teach me for being over efficient.

[West Ridge Racing]

He he, that is why I wanted to be clearing about that in My last post. I wrote earlier in the thread that I got them bearings already;) thought for myself that must have gone not noticed but think they will be needed.

Edit: My bad Cream. Not in this thread but in The acctual thread regarding this mod. Under Team Associated.
http://www.oople.com/forums/showthread.php?t=31823

Mixed them up, sorry.

[Cream]

Not a problem m8, It's not going to bankrupt me :)

[West Ridge Racing]

First of, thanks Hog. Got your Pm. Going to think about everything. Put the diff mod aside for the moment. Bought a spares kit from a friend really cheap and got 4 xtra diffs with it with ceramic balls and everything.

Have been testing the car a lot these past few days and have not felt The need to change anything on it setupwise. It just runs perfectly on our turf track. It jumps beautiful and have not corrected it ones in air. No need. It has got some amazing stearing in both low and high speed. Stable as hell and it is planted everywhere on The track. Really impressed with it.

The only modification I have made is to remove all aditional brass weights and found the balance to be 45/55 front to rear witch suprised me since everything in the car is moved forward. It only weighs in at 1610g.
Standard b44 seems to be heavy towards The rear. My car handled the rough section better than B44 even though it is lighter. Can push it hard even though grip level is very high.

I am really really pleased:)