Originally Posted by
Sp Racer
I used a standard, out of the box .21 VZR at the recent Vic. state titles , the best lap I did in the semi final was only .3 slower than the winner of the A main.
Every heat the engine just got faster and faster, 5 minutes was easy ( I used a Novarossi 2015 pipe ) - added 0.1mm head shim and used a P7 plug.
I loved the linear power band , and to be honest, I didn't feel as though I was lacking power anywhere against all the more fancied names (GRP, RB, Novarossi)
I reckon stick a ceramic rear bearing in one of these, a little tickle with the dremel and in my opinion you'll be rapt ! ( have not done this yet )

These engines would have to be the best bang for the $ out there
Hi SP,
Mate just keep an eye on that stock crank pin, because of the Backward design of putting the oil hole through the Crank pin and no oil hole in the rod, this causes the rod to let go, and also causes the the botton end bush of the rod to wear away and come loose. Yes i have to agree with you they are the best engine for bang for your bucks, but unfortantly for that bakcward desing they tend to GO BANG!!!

, if you try the speed rod and speed Crank with rear ceramic you will love it even more, much faster and ever so relaible, i cant wait to run in my new P/L, the current one im using is 2 years old,all i just did was the mod that i mentioned to you and the fucker just keeps going.
Cheers