SRX8

I got up early this morning. I have to do many things. I had repaired my daughters iPhone display. And I had pasted body masking. And then I will go to Kolkata India in afternoon for my business. I wash Assassin body with kitchen cleaner. What a narrow cabin assassin is. I cut masking as same design as silencer. Time up I have to go airport.

ForAssassin body for MP9 arrived from GB. It's made by Lead finger racing. I feel the body small like a EP body. It has narrow and long cabin. Hand made taste. Detail finish is not good. Not like as major brand. I'll start painting this weekend. Aerodynamic performance is good. Another brand mimics Assasin. Long cabin body make easy driving to go straight after jump.

On RC Induatories contract is not to be contract. A pro driver doesn't work well or can't get result. Sponsor discard contract. A pro driver can't obey contract. Use another brand equipment for win. But Lyan Lutz is a true professional. He never say wrong previous sponcer.  And he has not only good driving technique but also has developing skill.

It's too cold in west Japan. Too much snow fall. I have never seen such a much snow. Strong wind blow. We can't go outside for a day. I'll have to go India next week. I'll can't adjust my health condition for temperature changing .

It's too cold and snow. I can't go to track for a week. I built Trifecta wing. LEXAN doesn't have durability. I cut sidedum with margin for durability. I adhesion main and sub with Shoe goo. I add durability with protection tape. I paste tape at easy breaking area.

Triton engine is on sale duo Venturi.  It make low band air flow stable. On half throttle the Venturi intake half airflow. It can use more big diameter. Japanese RC shop had sold same Venturi few years ago. I used 8mm diameter Venturi on OS engine. But it's not good for me. Felling change suddenly and high speed needle should make rich. Then mileage getting worse . Now I return to normal 6.5mm diameter.

Newmann drives Serpant. Likes as Durango. I never drive DNX408. But I had driven Serpent Cobra. It's designed same designer as DNX408. But probably DNX8 is not designed by him. DNX8 is well testing car. Serpent car doesn't appire set changing. DNX8 appire reaction well from set changing. Determin geometry after well testing. Now Serpent has two designer. It cause of confusion. I want DNX8 to continue developing step by step well testing.

Clutch system is expendable. I don't want to pay the cost. I hear four shoe clutch make bell long life. And clutch bearing too. Then I want to try four shoe clutch system. And I've tried carbon shoe. Mugen carbon shoe was not good. Now I use Sworkz carbon shoe. I search four shoe clutch. Reds Quattro clutch. It can adjust spring tension. And shoe are processed edge round. And nova. The shoe is light weight. I want to buy Nova. But nova out of stock. Then I order Reds clutch. It takes $59.

Lead Finger Racing is a RC parts brand in USA. http://shop.leadfingerrc.com/ They have a own shopping site. They develop Assassin body. Assassin have narrow and long cabin. Ryan Lutz use Assassin body shell now. I want to buy one. They have a body shell for MP9. In official site Assassin is sold for $24. But shipment fee to Japan is $46. It is too expensive. I search another RC shop. I found a shop on eBay in GB. I pay  2GBP only for shipment. They have stock only one. I can't wait to get one from GB.

Front lower suspension hinge pin is vended. Hard hit  to steel wire on the truck. Another front parts never break. Then hinge pin is vended. Xray hinge pin are same size as DNX8. I can replace hinge pin to xray. There is a scratch by break rod touch. I adjusted break rod not to touch battery cover. I mounted adjustable dial on the other side. I return to long pipe. Low geared set no need pick up. Front kingpin ball has weight 15g. Mugen kingpin ball has weight 8g. If I needed traction on rough truck I select heavy weight ball. Under the spring weight make car stable. Now MP9,Xray have hub weight control system. I want to be DNX8 too. Travis set rear diff oil 5K. I set so. It make rear traction weak but get forwarding power. Then I set rear roll center high. I change some setting for next run. Maintenance completed. Total weight without only fuel is 3444g. Center diff +10g Front ball -15g

I bought center diff parts. Original has weight 98g. DNX8 diff is lighter than other buggies. MP9 has weight 108g. 10g heavier. I weaver which diff is better. In summer I should select MP9. I don't ignore 10g on most rotation parts. Heavy center diff make car keep to go forward after breaking. It means car become difficult to stop. I will try to run once using MP9 diff on truck. MP9 diff cup is little bigger. Then should scrape diff mount. Same as upper mount too.

I pop out nut holder under center diff. The holder connect chassis and plate. But effective screws are only both side ones. Center connect plastic holder . I replace short hight screw and lock nut. Then I can mount MP9 center diff. MP9 designer knows center diff unit is most important parts. He knows about thermal problem and low center of gravity. Then he pay the cost for diff case and spur and break disk. He designs center diff exclusive others. These are MP9 center diff parts list. Diff case   IF404 Spur 46T   IF410-46 Spur 48T   IF410-48 My engine is high speed type.I choice 48T. Inner Gear IF402 Bevel Shaft IF411 Center diff cup IF413 6mm O ring ORG06 Break rotor IF415 need 2 pieces.

I've came back to home. I checked MP9 center diff  can mount to DNX8. Length of between bearings is same as DNX8. But diff case diameter is longer. MP9 center diff case is big. Center diff rotates most high speed. Diff oil is heated much more compare with other diffs. Diff case hit to nut on chassis. Diff can't rotate. I need to put 2mm shim under the diff mount. It's not good that high rotation parts mounted upper position.