Finally,i got the engine dialled.I was impressed with the power of the WASP engine especially the low end as ive heard that this engine has low bottom end power.With a proper clucth set up and pipe the engine has a powerful low end which can match any modified engine.I found out the low end is stronger than my 5port OS TZ except the WASP engine rev alot faster to top speed.This engine has insane power from bottom to top end,it makes my G4 wheel spinned a few times coming out of corner and i have to adjust the original two speed setting of the TZ to engaged later as it rev up much faster.Below is my current setting of the engine,hope it might help some of u guys-

1.Using Nova 2601 pipe but decreased the muffler tip length to 11.5mm (original length was 16.5mm) to get more punchy low end.

2.Can also use Sirio Evo 3 tuned pipe but dont have to shorten the muffler tip.The original length is good enough.

3.Using G4 1.8(hardest) yellow clucth spring and tighten the clucth nut to 1mm instead of 0.7mm for my OS TZ.(i believe a 1.9 clucth spring would be better but Team Magic doesnt produce one).End play set at 0.3 to 0.5mm.

4.Currently using 25% O'Donell fuel with 5.5turn of the HSN and 4turn of the LSN.Temp is about 110 to 120 degree.(havent remove the 0.1 shim yet but might try soon)

MXWRENCH,thanks for the infos,it helps alot.