Please help support RC10Talk.com!
Donate towards my web hosting bill!
Any contribution helps!!

Insane speed run build

RC10/12/100/200/250/300/500, DS
General discussion, builds/restos...

Moderator: scr8p

User avatar
sandkil
Super Member
Posts: 568
Joined: Tue Jan 15, 2013 3:00 pm
What was your first real rc car?: KYOSHO SIDEWAYS
Location: Stockholm Sweden

Re: Insane speed run build

Post by sandkil » Sun Oct 29, 2017 10:29 am

Phin wrote:
Sat Oct 28, 2017 4:18 pm
Narrower tires only decreases the track width by half of the decrease in overall width. On the other hand increasing the axle width will increase track width and overall width by the same amount.

So getting back to the same track width only requires widening the axle widths by half of what you narrowed the tires by...and would still result in a narrower overall width (under 200mm). Putting the car back to 200mm overall width, with narrower tires, would result in an increased track width than you had with wider tires....


...and it only occurred to me while typing that that it could be the ISR cars actually meant to increase the track width that way. :?
Attachments
BEDF28E5-BE74-4C0A-8056-496C2014E6CF.jpeg

User avatar
LoboNYC
Super Member
Posts: 380
Joined: Tue Apr 09, 2013 4:26 pm
What was your first real rc car?: Losi JRXT
Location: Lower East Side, NYC

Re: Insane speed run build

Post by LoboNYC » Sun Oct 29, 2017 4:42 pm

I think i got it....what he is trying to say is:

YOU CAN SAVE 15% ON CAR INSURANCE BY SWITCHING TO GEICO


Yep....that about sums it up :mrgreen:

Phin
Approved
Posts: 2707
Joined: Tue Feb 21, 2012 10:17 pm
What was your first real rc car?: Cox Turbo Scorpion
Location: NY²

Re: Insane speed run build

Post by Phin » Sun Oct 29, 2017 5:17 pm

I'm just saying it's okay if your shims don't get you to 200mm wide overall...it's not necessarily a hard target number. Though, either way it's not a big deal, so you can go ahead and forget I mentioned anything about it. :wink:

User avatar
sandkil
Super Member
Posts: 568
Joined: Tue Jan 15, 2013 3:00 pm
What was your first real rc car?: KYOSHO SIDEWAYS
Location: Stockholm Sweden

Re: Insane speed run build

Post by sandkil » Mon Oct 30, 2017 7:43 am

Phin wrote:
Sun Oct 29, 2017 5:17 pm
I'm just saying it's okay if your shims don't get you to 200mm wide overall...it's not necessarily a hard target number. Though, either way it's not a big deal, so you can go ahead and forget I mentioned anything about it. :wink:
I am sorry Phin. I mean no disrespect. I sat down this weekend and tryed to get a grip on what you sayed. As I'm swedish i ran it trough google translate and damn...
Dont get me wrong. I'm truly greatfull for your expertice and knowlege.


"So getting back to the same track width only requires widening the axle widths by half of what you narrowed the tires by"

Lets see if i got this right:
If I go from 1.5" tires to 1.2" tires I add 0,15" shim per side?

//Erik

Phin
Approved
Posts: 2707
Joined: Tue Feb 21, 2012 10:17 pm
What was your first real rc car?: Cox Turbo Scorpion
Location: NY²

Re: Insane speed run build

Post by Phin » Mon Oct 30, 2017 8:57 pm

No need for apologies. I never took offense or felt disrespected at all. If anything I owe you an apology for being confusing. :)

sandkil wrote:
Mon Oct 30, 2017 7:43 am
"So getting back to the same track width only requires widening the axle widths by half of what you narrowed the tires by"

Lets see if i got this right:
If I go from 1.5" tires to 1.2" tires I add 0,15" shim per side?
If you want the same track widths? Yes.

Track width is the distance between the middles of the two tires on the axle. The middle of a tire only changes by half of what the tire is narrowed by.

The middle of a 1.5" tire is at .75"
The middle of a 1.2" tire is at .6"

The 1.2" tires are .3" narrower than the 1.5" but there is only a .15" difference in where the middles are. The overall width (to the outside of the tires) gets decreased by .3" per side, but the track width (to the middle of the tires) only gets decreased by .15" per side.

Shimming the axle .15" per side will put the 1.2" tires back to the same track width as the 1.5" tires. The overall width of the rear axle will still be under 200mm though. It'd be about 193mm.


That's not to say I think you should make your car's rear axle 193mm wide. I don't know exactly how wide your car should be...which is why I also said you can forget I mentioned anything about it. :oops: All I meant to suggest is that you can use whichever hubs and shims look right to you even if it means not being 200mm wide.

User avatar
sandkil
Super Member
Posts: 568
Joined: Tue Jan 15, 2013 3:00 pm
What was your first real rc car?: KYOSHO SIDEWAYS
Location: Stockholm Sweden

Re: Insane speed run build

Post by sandkil » Wed Nov 01, 2017 2:12 pm

Thank you Phin for your expertise. I think i'm getting the hang of it now and it's such a pleasure tossing out questions on this forum as I believe all knowledge is here.

On another note. Found this the other day and lovin' it.
John Peterson's car in RCCA March 1997, but it does not say if he used it in -97 or earlier.
Attachments
97-03 peterson.JPG

User avatar
sandkil
Super Member
Posts: 568
Joined: Tue Jan 15, 2013 3:00 pm
What was your first real rc car?: KYOSHO SIDEWAYS
Location: Stockholm Sweden

Re: Insane speed run build

Post by sandkil » Mon Nov 06, 2017 7:14 pm

It has been a while since I updated on this build, but there has been som progress.
Rear end is in place and battery packs has been built. Cells bought trough Aliexpress, braid funded by NomadRacer and made some matched decals using Dotrice font on self adhesive paper.
Attachments
010.JPG

User avatar
NomadRacer
Super Member
Posts: 353
Joined: Sun Apr 16, 2017 11:29 am
What was your first real rc car?: Tamiya Sand Scorcher
Location: Eastern Shore of Virginia

Re: Insane speed run build

Post by NomadRacer » Mon Nov 06, 2017 8:03 pm

WOw, that is clean looking!
Bum on Direct Deposit

User avatar
sandkil
Super Member
Posts: 568
Joined: Tue Jan 15, 2013 3:00 pm
What was your first real rc car?: KYOSHO SIDEWAYS
Location: Stockholm Sweden

Re: Insane speed run build

Post by sandkil » Tue Nov 07, 2017 7:59 pm

NomadRacer wrote:
Mon Nov 06, 2017 8:03 pm
WOw, that is clean looking!
Thanks Michael :)

Played around trying to create a antenna mount for the car.
I had these body posts lying on the bench and thought: Hey! Is that what Clausen used on his 1991 car?
Well looks kind of similar anyway
Attachments
IMG_1185.jpg

User avatar
NomadRacer
Super Member
Posts: 353
Joined: Sun Apr 16, 2017 11:29 am
What was your first real rc car?: Tamiya Sand Scorcher
Location: Eastern Shore of Virginia

Re: Insane speed run build

Post by NomadRacer » Tue Nov 07, 2017 10:47 pm

Hey Erik, thanks for sharing your antenna mount! I have a project that I'm gathering parts for and have been stumped on what to do for a mount! :wink:
Bum on Direct Deposit

User avatar
sandkil
Super Member
Posts: 568
Joined: Tue Jan 15, 2013 3:00 pm
What was your first real rc car?: KYOSHO SIDEWAYS
Location: Stockholm Sweden

Re: Insane speed run build

Post by sandkil » Wed Nov 08, 2017 7:12 am

NomadRacer wrote:
Tue Nov 07, 2017 10:47 pm
Hey Erik, thanks for sharing your antenna mount! I have a project that I'm gathering parts for and have been stumped on what to do for a mount! :wink:
You're wellcome man ;)

Come to think of it. Could it be that Masami used similar post as body post on his 1991 Stealth car. In the front I mean!?
Attachments
STEERING6.jpg

User avatar
sandkil
Super Member
Posts: 568
Joined: Tue Jan 15, 2013 3:00 pm
What was your first real rc car?: KYOSHO SIDEWAYS
Location: Stockholm Sweden

Re: Insane speed run build

Post by sandkil » Thu Nov 09, 2017 5:51 pm

Summary of the build so far:
Newly bulit AE hard anno .56 shock with silver spring.
TRC aluminum ball joints.
HPI hubs and wing mounts.
Kimbrough 64p 120T spur.
Composite Craft Teflon tape on upper pod brace.
Some BRP aluminum 4-40 screws here and there.
Attachments
23319061_10213408034982512_1951655068340651690_n.jpg
013.JPG

Post Reply

Return to “Associated On-Road Forum”

Who is online

Users browsing this forum: No registered users and 1 guest