Originally Posted by HarKonnenD
Ok so I opened up my TOp engine to find two RB shims already in there. Now what?
Again I'll be running 30%. SOMEONE HELP! Gotta run to the track before it rains today.
If you're suffering from detonation, and have now two 0.1 shims, could be caused by the humidity on the air (where you race? there's fog or near a river?). Which plug you're using? #6, #7 Tc or Tf? Which temps, which fuel? if you suffer from detonation, you may not solve it enrichening the HSN - is a matter of compression, and water particles on the air, plays their role here.
My suggestions: for a 30%, go for a #7Tc (Hot), check the size of your chamber (if you run at sea level with a 30% nitro, go at least for a 0.021" chamber height).