What did you do to your model today?

[Ant.p]

7 minutes ago, GMballistic said:

Do you know what the differential pinion gear size is and differential spur (main gear)?

You can use an RC calculator to get a rough idea of what speeds you may get near (obviously it's just a rough idea as it doesn't take into account a lot of things).
Link: https://www.radiocontrolinfo.com/information/rc-calculators/rc-car-calculator/

 

Tbh if you're still running the centre diff the bear minimum I would have put in it is 500K CST to try to get it acting more like a spool for transferring the power between front & rear.

 

If you're trying speed runs happy to help where I can as will others who I know are into it. 

High speed chat thread on here: 

You could also join ROSSA on FB if you're on there:  https://www.facebook.com/groups/1641915416068313

Thanks Gareth! I just had a look on the link you sent. 115.9mph?! 😂 wonder if I input the figures wrong?

 

[GMballistic]

10 minutes ago, Ant.p said:

Thanks Gareth! I just had a look on the link you sent. 115.9mph?! 😂 wonder if I input the figures wrong?

You're welcome and looks like you put everything in correctly. 

The RC calculator isn't bad for a general rough idea but it doesn't take into account a lot of variable like drag/aerodynamics, vehicle weight, ambient temperatures etc etc etc. Not to mention depending on what ESC you're running it might have safety limits built in which may hamper you getting high speeds. 
Other thing to bear in mind is are your tyres even safe at those speeds? If they're not belted chances are anything above 60-70mph and you maybe pushing your luck. 

 

So that we don't go off topic too much in this thread post any questions or even just your set up/any vids for others in the "High Speed" thread I linked. Always good watching how people get on. 

 

FYI when I first started speed running a few years ago with my Arrma Typhon the first PB I recorded with a GPS I bought was 64mph with a 23T pinion gear on 6S.
Current PB is 127mph with the Typhon but it has more in it for definite. 
Thread here showing that progression: https://www.arrmaforum.com/threads/speed-runner-typhon-6s-uk-built-fast-not-bought-fast.10482/

 

 

 

[Redback]

Brainfarting my way around high clearance links.
Cant seem to get them to work, as the upper links hit 😕

 

So moved on to putting the big motor into the hyper 7, wasnt happy with the smaller max 8 motor didnt have the output for low voltage runs.

Bit of drilling to the mount for bigger bolts and maybe some grinding needed to get smaller pinions to mesh, looking forward to seeing how she goes.

Then a bit of design blocking out, getting a feel for what could be braised or printed.

[Bert_w164]

Spider guy what size is that can on the Hyper 7?

[Redback]

2 minutes ago, Bert_w164 said:

Spider guy what size is that can on the Hyper 7?

4985 from 4274

[Bert_w164]

Cheers, what's the recommended amperage (esc wise) to power it?

[Redback]

I would assume the max 5 or max 6 systems that have 160 / 200 amps with (1000amp peaks. I dont belive this)
Im running a mmxxl that has up to 700amp, not sure on max the motor tho.
Internet says 5700w on 3 phase ac at 22v is 150amp according to calculations, do brushless 3 phase 4 pole use dc? if so its 250amp.
Wanting to run 7.4v it would need 770amps to max the motor?

 

Edited November 10, 2021 by Redback

[Kpowell911]

11 hours ago, Redback said:

4985 from 4274

Is that the 1650kv variant?

[BigGinge]

11 hours ago, Redback said:

Brainfarting my way around high clearance links.
Cant seem to get them to work, as the upper links hit 😕

 

 

If you think of the high clearance links as having a shape a bit like a hockey stick I'm pretty sure you would mount them all with the sticky out bit (that you would hit the ball with) pointing down at the axle end .

[Redback]

3 hours ago, Kpowell911 said:

Is that the 1650kv variant?

Yes max 6 combo, the 56"" can motors wouldnt fit without raising the mount off the chassis or cutting out a hole in the chassis, waiting for scorched parts to produce a hyper variant of their roto mount then ill go 56113 motor.

  

3 hours ago, BigGinge said:

 

If you think of the high clearance links as having a shape a bit like a hockey stick I'm pretty sure you would mount them all with the sticky out bit (that you would hit the ball with) pointing down at the axle end .

Indeed the issue is they hit the upper links were they cross over, thats why the front one is backwards, thought it might help but it just twists and becomes a low clearance link haha

Edited November 10, 2021 by Redback

[turok007]

finished the painting.

[Hell horn.]

Well I designed one I guess. What else to do when your doing your food hygiene level 2 for work by zoom. And the lady doing it is so slow and boring ha.  Next jon is getting it made for me to test 

[Bert_w164]

Fitted projector lenses to my headlights...

 

 

 

[Ant.p]

20 hours ago, Redback said:

 

 

Well used! Just missing 'also available in black' written in the dirt 

 

[Ant.p]

20 minutes ago, Bert_w164 said:

Fitted projector lenses to my headlights...

 

 

 

They look the part! Nice and discreet too when not in use, a massive improvement on the prototype you had fitted to the Kyosho 

[Bert_w164]

57 minutes ago, Ant.p said:

They look the part! Nice and discreet too when not in use, a massive improvement on the prototype you had fitted to the Kyosho 

A set will be with you soon sweetie x 

Although with those harsh words about the Kyosho to which Nadia thought was really cool, might just send you a "prototype" set! 

[Yrkoon]

2 hours ago, Bert_w164 said:

Fitted projector lenses to my headlights...

 

 

 

much better bud 🙂

[Bert_w164]

Normally @Ant.p suggests I listen to some really urban music, this time however, a great suggestion from him. 

 

Rear end, lens frosted and fitted. Sorry for picture of picture, mobile phone just picks up some light beam that's not visible in person, and can't be faffed to process the image off big camera at this hour. 

 

 

 

[Yrkoon]

2 hours ago, Bert_w164 said:

Normally @Ant.p suggests I listen to some really urban music, this time however, a great suggestion from him. 

 

Rear end, lens frosted and fitted. Sorry for picture of picture, mobile phone just picks up some light beam that's not visible in person, and can't be faffed to process the image off big camera at this hour. 

 

 

 

ahhh i get the idea and it looks sweet 🙂

[Bert_w164]

Not for my model, but for @Ant.p's model some headlights and tail lights. 

 

Not clear in the pictures but 3w and 1w Cree LEDs built into holders and lenses with heatsinks fitted to disperse heat. 

 

Theres absolutely no need to run them at full pelt, hence tuned down to a point where they're nice and bright and energy efficient. 

 

Ran for an hour straight to confirm heating solution is adequate etc. 

 

[turok007]

Want to get some old tires for road use  then it's ready to go.

[Ant.p]

Edit: posted my fondness of the blue body and black rims twice by error. Sorry! 🤦🏼‍♂️
 

is there a reason why you can’t delete posts?

Edited November 11, 2021 by Ant.p

[Ant.p]

1 hour ago, turok007 said:

Want to get some old tires for road use  then it's ready to go.

Liking the blue body with the black rims! 😎 

[turok007]

8 minutes ago, Ant.p said:

Liking the blue body with the black rims! 😎 

yup the black with the blue does look better

[Ant.p]

3 hours ago, Bert_w164 said:

Not for my model, but for @Ant.p's model some headlights and tail lights. 

 

Not clear in the pictures but 3w and 1w Cree LEDs built into holders and lenses with heatsinks fitted to disperse heat. 

 

Theres absolutely no need to run them at full pelt, hence tuned down to a point where they're nice and bright and energy efficient. 

 

Ran for an hour straight to confirm heating solution is adequate etc. 

 

Thanks so much! Looking forward to getting my hands on these. The trouble I’m going to have is choosing which model do I install them on… 🤔