SRX8

These parts are arrived from a main. I changed steering plate #2. It makes feeling dull. But front wheel hub is changed +0. Then totally even. Shock tower was changed aluminum. Little heavy than carbon shock tower. It has durability. And it makes head down on jumping. Caster block was changed 17deg. It was operated another coating. It avoids from scratch. And I return 10 skid bushes. High caster angle is good for on power steering. High skid angle make head down on breaking.  

When do we complete break in? Until it's 100℃ on head with racing status main needle. On visual decided method. OS engine attach at head of  piston. 2/3 width top to groove is shaved. It's complete. My OS piston is not same width yet. More 5 tanks will be needed to run.  This is a PICCO piston. The piston attach upper of piston pin hole. It's avoid thermal expansion for combustion.  But if you saw piston pin area,you find thickness of holding block. The the area is more expanded than other area. We have to care heat cycle operation. I have never use Nova. I'll try next.

Gerd designs new EP buggy. Probably Serpent implements well! Where is Billy? GP too?  

I went to parking lot for OS break in. It has long straight. I can take 5s maximum throttle straight. And non dart is good for air condition. I usually operate engine running in. Heat cycle is very important. I keep 100℃ on head with main needle control. From first time I don't hesitate closing main needle. Almost max throttle stayed. Max throttle intakes max oil. And exhaust shaved metal material. After running head should be cool down to 30 ℃. 2min x 8 3min x 3 4min x 6 For example intake side of engine has 59℃. At the same time exhaust side of engine has 86℃. Exhaust side is higher. Then piston top is more expand at exhaust side. Left side is operated by stand. Piston top doesn't shaved uniformity by long time thermal expansion. And bottom side of piston is shaved with attach strong with sleeve. Right side is operated heat cycle break in. Piston top is shaved uniformity. Cool down make piston top to reform true circle. Perfe...

I mounted OS engine. I adjusted linkage square between brakes and throttle. But Throttle can't move smoothly. Then I move carburetor pivot ball to front side.  And carburetor ball vertically. It's a basically adjustment for smooth throttle control. I reuse X-ray XB8 body. Serpent body is thin and lightweight. For race only. Rear mount places little low.

I put a Kyosho blue on front shock. Neumann sets Serpent pink. I can't got pink spring yet in this year. Probably pink is softer than Kyosho blue. I feel SRX8 figure front up on big air. Then little softer spring will be matched. I use 1.3mm x 8 pistons. Then I select little stiffer oil. I put 1.5k oil on center diff. Same as Neumann set up. I select Jconcept rear wing It is low down force. But it has roll force on the corner. I change engine to OS low head. It make to reduce roll force. Then I want to need more roll. I adjust roll center on low position. And wheelbase sets 2.5mm. These make rear braking timing early. Upper link position is outside. It make changing camber angle on bottom to reduce. On sliding rear lose control,The set make easy to recover rear traction. On bulkhead side use inside and most low hole,Upper arm becomes long. Neumann always uses this position. Inside is fixed. And i will try low or second low. ...

I'm changing setup from Neumann's setup sheet. Front kick up are changed 11 deg with 15 deg caster block. It's for on power steering. When I opened diff case almost oil is disappeared. It's not leaked. Urethane foam absorb oil. Probably urethane foam absorb oil pressure too. And conical gear pitch is smaller than others. Then the diff case need stiffer oil. Like a 20k cst on front. And I've ordered steering plate#2. It has shorter than normal #1. It's for off power steering. It brings mild feeling. It's a normal plate #1. I want to change linkage ball end. It has long plastic bridge. It's easy to bend or brake.  I changed shock pistons. MP9 1.3mm x 8 holes. It can be used stiffer oil. Stiffer oil is difficult to change from thermal on long distance race.