yesterday I were in a street race & bush the car to the limit. I used a method of braking which you have to brake + down gear to the lower ratio + slight press on accelrator pedal. this method which disscused in rhe video & picture forum & I remember that Audacityracing named this operation with "feathering" the throttle
my proplem not that . anyway it was helpfull through corners & the car out of corners with good torque.and I were the front car in the race
in one corner the car was on 3rd gear @ 5500 rpm I drived it to the 2nd gear then "VOOOm" happened.' I guess that the engine exceeded its revolution limit " 6700 rpm for example".
after that the engine looses lots of torque and at high speed 120km/h the engine couldnt increase rpm over 5000 rpm. so I stopped racing & checked the engine. all things were good beyond one thing . one valve - or may be more- has a high sound ' TICK TICK TICK sound heared crealely from inside the car with hood closed. this sound was hearable before the race but when you stand front of the car ,hood opened & in this case the sound was systimatic. but now some valves sound normal some others louder than usual.
proplem solved today
I opened the cam shaft house and found that the top of the valves had a broken tip . I dont know what is its name but I got a new one and installed it & all things working like it was ever
