Originally Posted by
houston
Wow! Really?
if you cant tune a novarossi plug in a novarossi engine you need to learn how to tune , there is usually a significant power decrease when using p3 plugs in novarossi , c5tgc , c6tgc and c7tgc all work great
btw , i have it on good word the vz-b bore x stroke is coming back to the OS name , always been a great engine , OS is another top quality engine manufacturer that deserves much respect for their efforts, my vote would be to find one of the older short stroke OS (vz) lineup , JQ , hara , old ninja b01-a , many guys do not prefer the new line up over the old . hope you find what ya need and have a good time running your rc cars !!
I don't want to argue or anything, just saying: when I put a P4 plug in my P5, I was able to clear a jump I wasn't able to clear before (the jump was beat up, track wasn't maintained for some time before that). More torque everywhere, a stronger idle, and fixed my tuning issues. I noticed these the second I screwed in a P4 plug and the engine fired. Before, when I had a c6tgc plug in my engine, I was having flame outs and the guys at the track tried to tune it but couldn't. Screwed in the P4, tuned it perfect in 1 minute, got the car back on the track, and it felt different, it was a difference noticeable by me, not a small difference that only a
pro may notice, a big difference.
No power decrease, truck felt faster and felt like I had more torque.
BTW, all the racers I know who run a P5 use a P4 or P3 plug and all run perfect.