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FGX Belt Drive Conversion

TQ RC RACING (tqrcracing) wrote, 9/29/2013 6:25:37 PM views: 5,444
 

FGX Belt Drive Conversion using 38t gear diff for Sakura XI, Sakura D3 15t Pulley & Shaft parts, rear belts,  and spur gear holder.

1. Cut the stock rear bulkhead cover to make the clearance from the gear diff.

2. Cut and drill 3mm hole on D3 bearing holder (center part in the part tree), must be the same position on both holders

3. Remove the rear upper arm and put set screw to the first hole of rear bulkhead.

4. Twist down the D3 bearing holder to the set screw on the rear bulkhead .

5. Put Graphite piece for rear upper linkage in stead of using stock rear upper a arm.

6. Cut Aluminum rear bulkhead and put it reverse, and move the shock mount back  about 10mm.

7. Put 2mm shims behind the spur gear holder to get the clearance from the motor mount.
 

Here are the parts used.

38T Gear Differential For Sakura XI Sport
http://www.tqrcracing.com/shop/product_view.asp?p_id=6386

Aluminum Rear Bulkhead Cover For 3racing Sakura FGX (Used for damper arm mount)
http://www.tqrcracing.com/shop/product_view.asp?p_id=2497

Aluminum Spur gear adaptor For Sakura D3
http://www.tqrcracing.com/shop/product_view.asp?p_id=4733

Titanium Gear Box Shaft Set For Sakura D3
http://www.tqrcracing.com/shop/product_view.asp?p_id=4694

Low Friction Front Belt 138 For Sakura D3
http://www.tqrcracing.com/shop/product_view.asp?p_id=4568

Front & Rear Bulkhead Cover Set For Sakura D3 (Rear bulkhead bearing housing part for pulley & shaft holder)
http://www.tqrcracing.com/shop/product_view.asp?p_id=4692

Aluminum Center Pulley Gear T15
http://www.tqrcracing.com/shop/product_view.asp?p_id=6083

Robinson Racing Super Machined Spur Gear 64P 81T
http://www.tqrcracing.com/shop/product_view.asp?p_id=686

Gold Standard Race 64 Pitch Pinion Gear, 68T - Ultra light weight
http://www.tqrcracing.com/shop/product_view.asp?p_id=5073

 
     


    Comments[13]
Scott Franklin
Reverse the rear shock cantilevers and remount the rear shocks, and I might have room to install a small nitro engine.  Hmmm........
9/29/2013 7:45:29 PM Reply
Panda .
Sean - your car was quick and quiet running against you this afternoon. I kept forgetting it was an FGX. I did not know you were a part time engineer as well as a programmer. I think you have too much time on your hands at the shop lately.  -))
9/29/2013 9:27:52 PM Reply
Ron Parker
Hi, I have spent the weekend putting this together.....well almost. What bearings did you use in the D3 , the lay shaft seems to short and how did you fix the D3 to the engine mount
There are some issues with this.....maybe show construction pics please
10/27/2013 11:30:35 PM Reply
TQ RC RACING
Ron worte:
Hi, I have spent the weekend putting this together.....well almost. What bearings did you use in the D3 , the lay shaft seems to short and how did you fix the D3 to the engine mount
There are some issues with this.....maybe show construction pics please
The bearing size is 4x8x3 http://www.tqrcracing.com/shop/product_view.asp?p_id=2746">.

Lay shaft is short, it barely touches the bearings, but it didn't have any issues so far.

Thanks.
10/28/2013 4:37:17 PM Reply
Robert Glaser
High, looks perfect, but how did you fix the Rear bulkhead bearing housing on the rear bulkhead?? thanks
1/30/2014 12:47:39 AM Reply
TQ RC RACING
Robert worte:
High, looks perfect, but how did you fix the Rear bulkhead bearing housing on the rear bulkhead?? thanks
I still have rear bulkhead cover to hold it down.

Thanks.
1/30/2014 7:54:50 PM Reply
Robert Glaser
TQ worte:
I still have rear bulkhead cover to hold it down.

Thanks.
On the photos it looks like that the bearing housing just lies on the bulkhead. the bulkhead cover is cut. Please post in some step by step production pics. It is very difficult to see how the bearing housing is fixed. on the bulkhead. The rest looks very easy and really makes sense.
Thanks. Best Regards Robby
1/31/2014 2:00:24 AM Reply
Robert Glaser
I mean the D3 Bearing housing on the original bulkheads! it looks like that it just lies on it! How is it fixed? THX Best regards!
2/5/2014 6:20:39 AM Reply
TQ RC RACING
Robert worte:
I mean the D3 Bearing housing on the original bulkheads! it looks like that it just lies on it! How is it fixed? THX Best regards!
First, I put set screw to the under bulkhead, made a hole to D3 bearing housing and twisted it down to the set screw on the under bulkead.

Thanks.
2/5/2014 6:33:29 PM Reply
carlos macias
Step by step please. I bought the kit and I see no light.
6/28/2014 3:41:16 PM Reply
carlos macias
TQ worte:
First, I put set screw to the under bulkhead, made a hole to D3 bearing housing and twisted it down to the set screw on the under bulkead.

Thanks.
Hi a question. From where does the hole in the bulkhead? From below? We want to see if it is possible in a photograph that screw us. Since it does not appear in his photographs.
7/7/2014 12:46:22 PM Reply
TQ RC RACING
carlos worte:
Hi a question. From where does the hole in the bulkhead? From below? We want to see if it is possible in a photograph that screw us. Since it does not appear in his photographs.
The bulkhead already has the hole for stock rear upper arm, I put set screw into the hole.
7/8/2014 2:41:04 AM Reply
carlos macias
TQ worte:
The bulkhead already has the hole for stock rear upper arm, I put set screw into the hole.
Ah I guess is a screw head on the bulkhead half and half on the part of the shaft. Thanks and regards
7/8/2014 10:43:33 AM Reply
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