Earlier in this thread a very perceptive individual pointed out to me that the Mototunes web site stated to accelerate and decelerate during the engine break in procedure.
This worried me a bit because NO automotive engine should ever be motored down ( engine braked) during break in and I know this from 26 years of engine break in experience on literally thousands of engines. I was very perplexed as to why the guy on the Mototunes web site would say this. Then it came to me like a slap in the face. He builds motorcycle engines! These engines have Nickasil and or “chrome” coated cylinder walls! The rings wear characteristics and ring material itself is far different than what ever is used in an OEM engine. We have used Nickasil in Pro Stock engines before but just about everyone now runs cast iron (Compacted graphite) cylinder walls. The break in procedure for Nickasil is far different in the fact that the rings can loose lubrication, Gaul or micro weld in the ring groove and on the wall itself. For this reason the engine break in procedure is different in the regard to engine braking or “motoring down”. It’s a way of getting oil up to the ring to keep it from wiping out. Molly, PVD or coated faced rings used on cast iron cylinder walls have totally different wear characteristics and do not need the additional oil that comes from motoring down or engine breaking.
http://en.wikipedia.org/wiki/Nikasil
Nikasil is a trademarked
electrodeposited oleophilic nickel matrix
silicon carbide coating for engine components, mainly
piston engine cylinder liners.