R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 07-21-2011, 03:28 PM   #2881
Tech Elite
 
Join Date: Nov 2009
Location: Woodinville, WA
Posts: 2,512
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by Graham Kenny View Post
Yeap it can be done, and works well
I guess you had to drill and tap your own holes in the bulkheads for the swaybar mounting blocks?

-Mike
grippgoat is offline   Reply With Quote
Old 07-22-2011, 12:48 AM   #2882
Tech Apprentice
 
Graham Kenny's Avatar
 
Join Date: Jan 2009
Posts: 90
Default

Quote:
Originally Posted by grippgoat View Post
I guess you had to drill and tap your own holes in the bulkheads for the swaybar mounting blocks?

-Mike
yeap but its fairly straight forward. u just need a decent bench drill and clamps
__________________
Team Schumacher UK - GM Racing - TIR - Boultspeed RC Paint
Graham Kenny is offline   Reply With Quote
Old 07-22-2011, 02:17 PM   #2883
Tech Champion
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,520
Trader Rating: 14 (100%+)
Default

Quote:
Originally Posted by grippgoat View Post
I guess you had to drill and tap your own holes in the bulkheads for the swaybar mounting blocks?

-Mike
See your steering link from the servo horn. Ok now make two of those (but shorter) for the sway bars.
__________________
#49, #25a, #91, #7, #12 the ones to watch.... UPDATE. #12 is your new AMA GNC #1

A Northwest Team of Positive actions
skypilot is offline   Reply With Quote
Old 07-22-2011, 08:40 PM   #2884
Tech Elite
 
Join Date: Nov 2009
Location: Woodinville, WA
Posts: 2,512
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by skypilot View Post
See your steering link from the servo horn. Ok now make two of those (but shorter) for the sway bars.
I did think of that, but haven't tried it. Even with short shock-end ball cups, I think it would be too long. Maybe I could trim them down.

The TCX has a ball cup with small bore and a set screw that goes onto to swaybar. Then you thread a ball into the shank of a ballcup. I was thinking that might be a good option with a shorty ball cup. It would give infinite adjustment, too. I figured I'd check out Korey's car next weekend.

-Mike
grippgoat is offline   Reply With Quote
Old 07-24-2011, 06:26 AM   #2885
Tech Apprentice
 
Graham Kenny's Avatar
 
Join Date: Jan 2009
Posts: 90
Default

Quote:
Originally Posted by grippgoat View Post
I did think of that, but haven't tried it. Even with short shock-end ball cups, I think it would be too long. Maybe I could trim them down.

The TCX has a ball cup with small bore and a set screw that goes onto to swaybar. Then you thread a ball into the shank of a ballcup. I was thinking that might be a good option with a shorty ball cup. It would give infinite adjustment, too. I figured I'd check out Korey's car next weekend.

-Mike
I just use shock end caps, and adjust the roll bar height on each side using shims inbetween, easy to do as i dont think the TCX ones work that well as there not tall enough
__________________
Team Schumacher UK - GM Racing - TIR - Boultspeed RC Paint
Graham Kenny is offline   Reply With Quote
Old 07-24-2011, 02:52 PM   #2886
Tech Elite
 
GSM Storm's Avatar
 
Join Date: Jun 2006
Location: Brisbane, Australia
Posts: 2,271
Trader Rating: 112 (100%+)
Default Spec R diff

Well after my son running the Spec-R gear diff in his Mi4-CX in mod for a few race meetings I have found that they are shit, the plastic gears can not hold up to the power that a 4.5 turn motor with boost and turbo can put to the ground, 4 drivers that were running the Spec-R diff on the weekend had them fail.

They either have the slot flog out were the pin sits or they just strip the side gear, 2 x 5min runs and thatís it, I can get a ball diff to do that.

Spec-R need to make some steel gears and fix the slop in cases were the out drives go in, on the Mi4 diff anyway, I checked a Tamiya diff and they did not wobble as much.

Schumacher, what have you done, you should have made your own, not got into bed with cheap crap.

Regards
Gary
__________________
Driver Gazza
Offroad - RC10 B64 (soon)
Vintage - Kyosho Tomahawk
Fantom Racing, JConcepts, Ace Hobbies/Reedy,
WTF, Plaig Bearings.
GSM Storm is offline   Reply With Quote
Old 07-24-2011, 05:44 PM   #2887
Tech Adept
 
Join Date: Mar 2010
Location: Fresno CA
Posts: 218
Trader Rating: 12 (100%+)
Default

Ran my gear diff around 20 x 5 minute runs with a 4.0 motor with no issues. What i learned with spec r diff is do not sand it and let it break in on its own.

Quote:
Originally Posted by GSM Storm View Post
Well after my son running the Spec-R gear diff in his Mi4-CX in mod for a few race meetings I have found that they are shit, the plastic gears can not hold up to the power that a 4.5 turn motor with boost and turbo can put to the ground, 4 drivers that were running the Spec-R diff on the weekend had them fail.

They either have the slot flog out were the pin sits or they just strip the side gear, 2 x 5min runs and thatís it, I can get a ball diff to do that.

Spec-R need to make some steel gears and fix the slop in cases were the out drives go in, on the Mi4 diff anyway, I checked a Tamiya diff and they did not wobble as much.

Schumacher, what have you done, you should have made your own, not got into bed with cheap crap.

Regards
Gary
dex410usa is offline   Reply With Quote
Old 07-24-2011, 06:36 PM   #2888
Tech Elite
 
GSM Storm's Avatar
 
Join Date: Jun 2006
Location: Brisbane, Australia
Posts: 2,271
Trader Rating: 112 (100%+)
Default Just no good

Quote:
Originally Posted by dex410usa View Post
Ran my gear diff around 20 x 5 minute runs with a 4.0 motor with no issues. What i learned with spec r diff is do not sand it and let it break in on its own.
When you run on a big track, long straight, with turbo and boost it is too much for the gears, we have used a 4.0 turn with no turbo or boost and they did last longer than 2 runs, I have tried every thing you can think off, sanding, not sanding, using extra shims, not using shims, I have set it up using bearing blue and found the small gears are not round and there for the mesh is no good.

4 spec-r diffs died on the same meeting, 1, CX, 1 TCX, 1 Xray and 1 Tamiya.

It's a shame Schumacher did not make there own.

Regards
Gary
__________________
Driver Gazza
Offroad - RC10 B64 (soon)
Vintage - Kyosho Tomahawk
Fantom Racing, JConcepts, Ace Hobbies/Reedy,
WTF, Plaig Bearings.
GSM Storm is offline   Reply With Quote
Old 07-25-2011, 07:36 AM   #2889
Tech Master
 
Rdog's Avatar
 
Join Date: May 2008
Location: Maple Valley, WA
Posts: 1,621
Trader Rating: 83 (100%+)
Default

Almost all the gear diffs you see are from Spec-R, The tamiya gear diff is just a re-packaged Spec-r. Its all about the assembly of the diff when you first put it toegther.



Quote:
Originally Posted by GSM Storm View Post
Well after my son running the Spec-R gear diff in his Mi4-CX in mod for a few race meetings I have found that they are shit, the plastic gears can not hold up to the power that a 4.5 turn motor with boost and turbo can put to the ground, 4 drivers that were running the Spec-R diff on the weekend had them fail.

They either have the slot flog out were the pin sits or they just strip the side gear, 2 x 5min runs and thatís it, I can get a ball diff to do that.

Spec-R need to make some steel gears and fix the slop in cases were the out drives go in, on the Mi4 diff anyway, I checked a Tamiya diff and they did not wobble as much.

Schumacher, what have you done, you should have made your own, not got into bed with cheap crap.

Regards
Gary
Rdog is offline   Reply With Quote
Old 07-25-2011, 07:54 AM   #2890
Tech Master
 
poochy's Avatar
 
Join Date: Apr 2007
Posts: 1,456
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by GSM Storm View Post
Well after my son running the Spec-R gear diff in his Mi4-CX in mod for a few race meetings I have found that they are shit, the plastic gears can not hold up to the power that a 4.5 turn motor with boost and turbo can put to the ground, 4 drivers that were running the Spec-R diff on the weekend had them fail.

They either have the slot flog out were the pin sits or they just strip the side gear, 2 x 5min runs and thatís it, I can get a ball diff to do that.

Spec-R need to make some steel gears and fix the slop in cases were the out drives go in, on the Mi4 diff anyway, I checked a Tamiya diff and they did not wobble as much.

Schumacher, what have you done, you should have made your own, not got into bed with cheap crap.

Regards
Gary
Gary-i felt the same until i re-shimmed
i run a 4.5 fullyboosted (12.75 fdr 45 boost/10 turbo)---and it is fine.
mine stripped when i ran the .2 shims on the inside and .1 on the outside.
go to .2 and .1 on the inside-and 70w schumacher shock oil--use associated green slime on the orings



is anybody using another type of rear belt for mod besides the black one?
poochy is offline   Reply With Quote
Old 07-25-2011, 08:22 AM   #2891
Tech Master
 
poochy's Avatar
 
Join Date: Apr 2007
Posts: 1,456
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by WildManDriving View Post
What handling effects should I notice by going one stiffer in front springs? and what would I expect to notice in tyre temp and wear?
one up-1lb or 3lb up? depends on what 1 up means

off throttle corner entry steering will decrease or be less violent

helps with chicanes if the softer springs are too stuck

what are u trying to achieve?
poochy is offline   Reply With Quote
Old 07-25-2011, 01:42 PM   #2892
Tech Master
 
Join Date: Aug 2006
Location: Auburn Wa
Posts: 1,882
Default bending my cvd's

I applogies if this is review:

Can someone tell me which cvd's (axel) that i can get for the Mi4-lp that will not bend with moderate contact.

I am replacing the front ones on every race day.

thanks in advance
__________________
Stay Young Race R/C
Sterling Racer is offline   Reply With Quote
Old 07-25-2011, 01:49 PM   #2893
Tech Master
 
Join Date: Aug 2001
Location: England
Posts: 1,467
Send a message via ICQ to MattW
Default

Strongest driveshafts for the Mi4 are the steel kit ones in the Mi4 CX kit. To run these properly you also need the CX spool / diff.
MattW is offline   Reply With Quote
Old 07-25-2011, 02:07 PM   #2894
Tech Master
 
Join Date: Aug 2006
Location: Auburn Wa
Posts: 1,882
Default

Quote:
Originally Posted by MattW View Post
Strongest driveshafts for the Mi4 are the steel kit ones in the Mi4 CX kit. To run these properly you also need the CX spool / diff.
thanks Matt
__________________
Stay Young Race R/C
Sterling Racer is offline   Reply With Quote
Old 07-25-2011, 02:12 PM   #2895
Tech Elite
 
GSM Storm's Avatar
 
Join Date: Jun 2006
Location: Brisbane, Australia
Posts: 2,271
Trader Rating: 112 (100%+)
Default

Quote:
Originally Posted by poochy View Post
Gary-i felt the same until i re-shimmed
i run a 4.5 fullyboosted (12.75 fdr 45 boost/10 turbo)---and it is fine.
mine stripped when i ran the .2 shims on the inside and .1 on the outside.
go to .2 and .1 on the inside-and 70w schumacher shock oil--use associated green slime on the orings



is anybody using another type of rear belt for mod besides the black one?
Done all of the above, they just won't hold up on the track we run on, High speed and hard braking, our fdr is 9.0:1 with boost at 32 and turbo at 22 using a SP2.0 speedy, the track has very good grip.

As for the belts we have been running ones from tough racing, getting about 8 to 10 runs on them, we were only getting 2 or 3 on the original black one, I have also made a jig to cut down a HPI gas car belt, they are 5mm wide, looks very strong, it has had 3 runs on it and still looks like new.

Regards
Gary
__________________
Driver Gazza
Offroad - RC10 B64 (soon)
Vintage - Kyosho Tomahawk
Fantom Racing, JConcepts, Ace Hobbies/Reedy,
WTF, Plaig Bearings.
GSM Storm is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hot Bodies Cyclone Frank McKinney Electric On-Road 19762 07-26-2017 10:42 PM
Schumacher Corner meche Electric On-Road 27727 07-20-2015 07:38 PM
2009 SEQ Onroad Interclub LOSI123 Australian Racing 348 01-06-2010 10:08 AM
Racecraft TC Challange 2 Kylelim Singapore R/C Racers 82 08-01-2009 12:07 AM
Schumacher Mi3/3.5 parts and roller!!! Eastcoast13.5 R/C Items: For Sale/Trade 21 07-19-2009 01:15 PM
Opinions on TC's hippie Electric On-Road 58 07-08-2009 10:14 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 04:51 AM.


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