Hey guys! Just out of curiosity. I have Aprilia SR50 R with setup. Cylinder: MHR team replica 70cc Crankshaft: MHR rhq Carb dellorto 28mm Exchaust yasuni c21 MHR team inner rotor MHR reedvalve VL16 Intake stage6 R/T malossi E13 iridium denso iw34 küünla piip: NGK cr2 variaator: MHR multivar aluminium stage6 R/T torque spring Clutch stage6 torque control Clutch Bell stage6 R/T Reduktor stage6 18% pikem Ported crankcase etc etc Two tings. First. I am wondering if there is a better exhaust available for this cylinder. What options do i have? Second. This cylinder is not very popular i guess because there is not much info to find besides few websites. What are the main differences with nowadays available MHR Team 2 and MHR team 2012? Thanks Martin from Estonia.
The C21 is the best and literally perfect for MHR Team,Polini evolution,stage6 racing cylinders etc...it was made for them, if u want better u can put C30 or Voca Combat but u need to port your cylinder.Your cylinder has 6 transfers and the MHR TEAM 2 has 7 also i think the exhaust port is smaller on the team replica.
Ok thanks. Then i rather stay with C21 then. Would you say Team replica is similar to MHR Team 7T. I actually have 2 Aprilias. Other one have Stage6 racing with inner rotor and 24mm Polini Carb. It has 2Fast exchaust. Do you have any experience with 2fast exchaust with MHR Team? I wanted to order a new exhaust (yasuni c16) for my other scooter with Stage6 racing cylinder. I have noticed that people tend to get very good results with S6 racing mk2 and Yasuni c16. Mine is also ported.
How can u get better results with C16??? C16 is weak exhaust it doesnt rev at all i would never use it on s6 racing your choice ...... The 2fast exhaust is close to C21 maybe few rpms higher you wont notice power increase.
Welcome to conversation Damjan! Interesting. So far on the internet i have found that people would rather go with Yasuni c16 because it has more low end torque and is less noisier for street use. Well i am not driving them that much. Actually not really at all. I am more like building them for fun. Anyway so far i am found people saying C16 is excellent for S6 racing mk2.
Dude i build my scooters for max performance not for less noise or to have more torque on lower rpm.......c16 on s6 racing is midrace and its weak midrace, i use the c16 on iron sport cylinder kits
True. Good point Just not maybe what i am looking for. I am happy with 1hp less but more torque in bottom end so i can get away faster. I am not drag racing. Which is perfectly fine if u do Good setup u have i see.
It will be lots of hp`s lost but ofc if u like more bottom end and to be easier to drive go for it, everyone has different needs Also you get away faster with every exhaust the point is the carb and cvt need to be perfectly tuned to achieve that.
Yes. Torque in low end. Hp in high end. If i lose 1-1,5hp in high revs but get away a little faster, then it suits for me better Thanks Damjan. Do you have a pic of ur scoot to add?
I have in my post about my scooter u can check it, u will lose at least 5hp and u wont get away little faster if u dont tune it, i have C21 and i fly off the line its not the exhaust its the tune.
