Originally Posted by
Maximo
My buddy is giving me the 21-7 to look at..I am going to check the port timings on the motor and see what they have done.... I have a strong feeling they must have the timing set too conservative, and I also have a theory on why they are flaming out.......... Anyways I will be modifying the 21-7, I will most likely be re-cutting the sleeve ports and altering port entrance angles......... In the end lets see what kind of monster I can make from one of these engines........
i have a couple of the plus 21-7bt engines and they are a great engine ! the plus cranks have created a little too smooth of a powerband in my opinion , i prefer the old style crank myself
the baddest ass engine i have ever had is still a crono RS7
i dont wanna use the new one(have two in service) i have in the box cause i cant get another one
let me know if anyone knows where to find a crono rs-2032 tuned pipe combo , thanks guys
later , monty