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Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
Tuning the KTM 380 Barrel / Piston / Head
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[QUOTE="Eurorider414, post: 140375, member: 20957"] Ivan, greets from Spain & ALSO sorry for my bad english! I am a KTM 380 enthusiastic, I have tuned my 99´380 SX myself. I continue working in the engine, but now: I have raised compression ratio and reduced squish clearance,I have polished head chamber and piston crown, I have a Wiseco piston ( one ring, more light), all cylinder and crankcase ducts are polished and fited,I have increased main and secondary transfers width and boost transfer timing, I have worked very much in the exhaut ports, modify the timing, widths and shapes, in the secondary exhaut ducts is very important to fit the control rollers to the ducts, I have a whole Spes exhauts system ( I ride motocross) and I have worked in carb. polished, rejeted and overbored ( 39.5). Yesterday I bought a Boyesen Rad Valve, but I haven´t tested yet. I want work soon with ingnition maps of Wolf CDI unit to fit to this modify. The bike is very much power than standart, Ivan contact me to details [/QUOTE]
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Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
Tuning the KTM 380 Barrel / Piston / Head
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