R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric Off-Road

Like Tree15Likes
Reply
 
Thread Tools Search this Thread
Old 10-29-2016, 01:29 PM   #1261
Tech Master
R/C Tech Elite Subscriber
 
Join Date: Oct 2014
Location: WI
Posts: 1,386
Trader Rating: 30 (100%+)
Default

Quote:
Originally Posted by Bracer11 View Post
Where should I be for a FDR with a 10.5 motor?
Hello my friend. Most companies are going to have a recomended FDR around 8.0 per their 10.5T motor used 10th scale 4wd buggy.

Spur size divided by pinion size = X Thus X multiplied with IGR per the vehicle YZ4 IGR is 2.6

87 divided by 27 = 3.2 X 2.6(IGR) = FDR of 8.37

87/28 = 3.10 X 2.6(IGR) = FDR of 8.07

You could obtain your FDR using smaller spur gears but I think 87t is gtg.


If you want more top end with less acceleration go to smaller spur to larger pinion to obtain the desired FDR.

Oh for other spur gear sizes per direct fit to the YZ4 you can pick up any off the other brand spur gears specified for AE's B4 series. AE, Jconcepts, RDRP, Kimborough
Norse is offline   Reply With Quote
Old 11-05-2016, 02:50 PM   #1262
Tech Rookie
 
Join Date: Jan 2016
Posts: 15
Default

Just a couple of questions for those of you running on loose dirt. I'm trying to get the car a little better dialed, in the rear especially. I have the Berzerk Superflex top-deck on the way, as well as the new two-piece rear hubs, steel FR mount, alloy RR mount (and inserts), +1 front arms, and also the BRC longer front upper arm mount. The rest of the car is basically kit spec currently, aside from carbon towers (front GW w/ flat arms), and narrow rear belt and pulleys.

Are the shorter rear arms (Z2-008R) a must? I see they are a common choice for dirt, but for the new rear hubs we also have to buy the 65mm shafts and the old BMAX4 rear c-clip axles (BM-010RAC)? Those BMAX4 axles seem to be a bit hard to find, are they a discontinued part like amain say? I wish I'd added a pair with my mibo order last week, as I can't seem to find them anywhere else.

I believe the 5mm rear hexes are also the way to go (my kit ones are 6mm). Will this make an appreciable difference on dirt?

I also plan on fitting the +1mm front graphite arms as I see many find they also help on dirt. Is it ok to run these with the standard S4 rear arms, or with the even shorter yz2 (Z2-008R) rear arms?

Any other advice on getting this thing best suited to our dirt here in Hawkes Bay, NZ would be super appreciated!

Thanks,
Craig
Attached Thumbnails
Yokomo YZ-4-t1.jpg   Yokomo YZ-4-t2.jpg  

Last edited by Zarathrustra; 11-05-2016 at 05:23 PM.
Zarathrustra is offline   Reply With Quote
Old 11-05-2016, 06:49 PM   #1263
Tech Adept
 
asalas's Avatar
 
Join Date: Aug 2014
Location: Melbourne
Posts: 167
Trader Rating: 3 (100%+)
Send a message via Skype™ to asalas
Default

Hi Gents,

Can anybody help me finding out what parts are needed to replace the front pulley clicker with the Aluminum Narrow Drive Pulley?

what flags do I need to get? "Aluminum Pulley Flange (Thick) (F / R / Center Outside) [YOKZ4-630F3]" ? Yokomo YZ-4 Aluminum Pulley Flange (Outside) [YOKZ4-630FC]? one of each?

thanks
__________________
Adolfo Salas
asalas is offline   Reply With Quote
Old 11-05-2016, 11:04 PM   #1264
Tech Master
R/C Tech Elite Subscriber
 
Join Date: Oct 2014
Location: WI
Posts: 1,386
Trader Rating: 30 (100%+)
Default

Quote:
Originally Posted by asalas View Post
Hi Gents,

Can anybody help me finding out what parts are needed to replace the front pulley clicker with the Aluminum Narrow Drive Pulley?

what flags do I need to get? "Aluminum Pulley Flange (Thick) (F / R / Center Outside) [YOKZ4-630F3]" ? Yokomo YZ-4 Aluminum Pulley Flange (Outside) [YOKZ4-630FC]? one of each?

thanks
Aluminum Pulley, 1 thin flange, 1 thick flange my friend
Norse is offline   Reply With Quote
Old 11-05-2016, 11:19 PM   #1265
Tech Master
R/C Tech Elite Subscriber
 
Join Date: Oct 2014
Location: WI
Posts: 1,386
Trader Rating: 30 (100%+)
Default

Quote:
Originally Posted by Zarathrustra View Post
Just a couple of questions for those of you running on loose dirt. I'm trying to get the car a little better dialed, in the rear especially. I have the Berzerk Superflex top-deck on the way, as well as the new two-piece rear hubs, steel FR mount, alloy RR mount (and inserts), +1 front arms, and also the BRC longer front upper arm mount. The rest of the car is basically kit spec currently, aside from carbon towers (front GW w/ flat arms), and narrow rear belt and pulleys.

Are the shorter rear arms (Z2-008R) a must? I see they are a common choice for dirt, but for the new rear hubs we also have to buy the 65mm shafts and the old BMAX4 rear c-clip axles (BM-010RAC)? Those BMAX4 axles seem to be a bit hard to find, are they a discontinued part like amain say? I wish I'd added a pair with my mibo order last week, as I can't seem to find them anywhere else.

I believe the 5mm rear hexes are also the way to go (my kit ones are 6mm). Will this make an appreciable difference on dirt?

I also plan on fitting the +1mm front graphite arms as I see many find they also help on dirt. Is it ok to run these with the standard S4 rear arms, or with the even shorter yz2 (Z2-008R) rear arms?

Any other advice on getting this thing best suited to our dirt here in Hawkes Bay, NZ would be super appreciated!

Thanks,
Craig
The L5 front +1 flat a arms are great in combination with the standard S4 arms. The wider front stance is a plus and again the rear S4 rear a arms combo great on dirt. Rear shocks on the frontside of rear a arms.
Try 5mm rear hexes however I like the 6mm. The new 2 piece rear aluminum hubs are excellent. I would go with the 66.5mm rear CVA's.
Bezerk top deck is great. Try running saddles transverse as the work better than excellent.

12.5 front casters are my preferred choice for low to med bite dirt and clay.

The rear aluminum camber mount is great as is the alum and or steel rear front and rear hangers. You will need the inserts. Gullwing front tower I prefer as I get more droop being the shock holes are a tad lower the the flat CF front tower.

Get the aluminum front camber mounts as well. BRC front skid bumper is awesome. I have not tried his other products yet but he knows his stuff.
Norse is offline   Reply With Quote
Old 11-06-2016, 12:26 AM   #1266
Tech Adept
 
asalas's Avatar
 
Join Date: Aug 2014
Location: Melbourne
Posts: 167
Trader Rating: 3 (100%+)
Send a message via Skype™ to asalas
Thumbs up

Quote:
Originally Posted by Norse View Post
Aluminum Pulley, 1 thin flange, 1 thick flange my friend
Cheers Norse
__________________
Adolfo Salas
asalas is offline   Reply With Quote
Old 11-06-2016, 12:50 AM   #1267
Tech Rookie
 
Join Date: Jan 2016
Posts: 15
Default

Thanks Norse, I'll take all of that on board. I hadn't though of trying the rear shocks forward, but I'll be sure to do so as well.

A lot of what I'm already aiming for is taken from the wealth of info from you and others earlier in this thread. Much appreciated!
Zarathrustra is offline   Reply With Quote
Old 11-06-2016, 03:39 AM   #1268
Tech Master
R/C Tech Elite Subscriber
 
Join Date: Oct 2014
Location: WI
Posts: 1,386
Trader Rating: 30 (100%+)
Default

ZARA and Asaias no problem my friends all the YZ4 owners are glad to help. I will see what the parts numbers are for the alum pulley, thick and thin flange and post.

For me the rear shocks forward really seems to lock the rear end down thus it does not break out. This wheeler keeps getting better as people keep sharing advice and tips.

Have a great day fellas
Norse is offline   Reply With Quote
Old 11-06-2016, 05:28 AM   #1269
Tech Regular
 
Join Date: Jan 2009
Location: England
Posts: 293
Default

Quote:
Originally Posted by asalas View Post
Hi Gents,

Can anybody help me finding out what parts are needed to replace the front pulley clicker with the Aluminum Narrow Drive Pulley?

what flags do I need to get? "Aluminum Pulley Flange (Thick) (F / R / Center Outside) [YOKZ4-630F3]" ? Yokomo YZ-4 Aluminum Pulley Flange (Outside) [YOKZ4-630FC]? one of each?

thanks

Z4-630A for the pulley

Z4-630F3 for the wide flange

Z4-630FC for the narrow flange

Don't forget, you'll need a pin to go through the layshaft for the pulley to lock on to, ZS-011NM.
__________________
X-Factory UK / Carisma Racing/ Corally/ Vampire Racing /TEKIN/ AVID/ JConcepts / Lunsford / Exotek Racing / Hiro Seiko / RDRP / GRP Tyres/ Tuning Haus/ DMSPARTZ / McKune/ RCS Graphic Workz / WTF / DMS Racing / Model Junction
John Myall is offline   Reply With Quote
Old 11-06-2016, 06:22 AM   #1270
Tech Master
R/C Tech Elite Subscriber
 
Join Date: Oct 2014
Location: WI
Posts: 1,386
Trader Rating: 30 (100%+)
Default

Quote:
Originally Posted by John Myall View Post
Z4-630A for the pulley

Z4-630F3 for the wide flange

Z4-630FC for the narrow flange

Don't forget, you'll need a pin to go through the layshaft for the pulley to lock on to, ZS-011NM.

J Myall is always quick and spot on helping deliver info. 👍
Norse is offline   Reply With Quote
Old 11-06-2016, 08:55 AM   #1271
Tech Regular
 
Join Date: Jan 2009
Location: England
Posts: 293
Default

Quote:
Originally Posted by Norse View Post
J Myall is always quick and spot on helping deliver info. 👍
I do try
__________________
X-Factory UK / Carisma Racing/ Corally/ Vampire Racing /TEKIN/ AVID/ JConcepts / Lunsford / Exotek Racing / Hiro Seiko / RDRP / GRP Tyres/ Tuning Haus/ DMSPARTZ / McKune/ RCS Graphic Workz / WTF / DMS Racing / Model Junction
John Myall is offline   Reply With Quote
Old 11-07-2016, 09:22 PM   #1272
Tech Adept
 
asalas's Avatar
 
Join Date: Aug 2014
Location: Melbourne
Posts: 167
Trader Rating: 3 (100%+)
Send a message via Skype™ to asalas
Default

Thanks to both Norse and John Myall. I'm now off to my LHS to go and get those parts!

cheers
__________________
Adolfo Salas
asalas is offline   Reply With Quote
Old 11-08-2016, 05:05 AM   #1273
Tech Addict
 
Join Date: Feb 2016
Location: Harford Co. Maryland
Posts: 542
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by asalas View Post
Thanks to both Norse and John Myall. I'm now off to my LHS to go and get those parts!

cheers
Your LHS stocks Yokomo parts??? LUCKY!!!!!
__________________
Associated TC7.1
Associated B6 x2
Associated T5M
Tekno EB48SL
Scott R is offline   Reply With Quote
Old 11-08-2016, 09:15 AM   #1274
Tech Adept
 
asalas's Avatar
 
Join Date: Aug 2014
Location: Melbourne
Posts: 167
Trader Rating: 3 (100%+)
Send a message via Skype™ to asalas
Default

Quote:
Originally Posted by Scott R View Post
Your LHS stocks Yokomo parts??? LUCKY!!!!!
They do. Down Under in Melbourne. They are actually trying to make Yokomo more popular here, not that it doesn't already have a solid fanbase.

So, I went to my LHS, got the pulley and flanges. I'm now waiting for the weekend to go and have fun at the racing track. Thanks again Norse and Johnmyall.
asalas is offline   Reply With Quote
Old 11-08-2016, 09:29 AM   #1275
Tech Addict
 
Join Date: Feb 2016
Location: Harford Co. Maryland
Posts: 542
Trader Rating: 15 (100%+)
Default

Damn, all we have here in the states is Amain
__________________
Associated TC7.1
Associated B6 x2
Associated T5M
Tekno EB48SL
Scott R is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 2 (1 members and 1 guests)
RS_ZACH
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 05:58 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net