Thanks for your opinion. Anybody else got one?
I read somewhere that trans temp will go up 10-15 Fahrenheit on every second on the transbrake. I also believe that stallspeed and rpm on limiter has a big influence to that. If I would use 4800rpm chip with my 5000+ converter, the heat buildup would be dramatically higher compared to about 3000rpm that I use now.
Also I found this: "We have seen piston and pin failure in a few Hemis.In some of the cases it was caused by staying on the two step to long.We seen guys jump on the two step as soon as they stage and hang there way to long.The Hemi with it's mass piston will pull the pin boss out of shape till it lets loose.Usually it seperates at the big end or on shut down.This hammering effect will make the pins tight in the piston.We tell our guys to wait for the first yellow bulb before floorboarding it.We can always tell if a guys been living to long on the two step with a Hemi,you have to beat the pins out."
I have H-beam steel connecting rods and Arias nitrous style pistons (I do not use nitrous) so they weight also some. 509" BB Chevy, 4.5" bore, 4" stroke. But isn't a Hemi piston hundrets of grams heavier? Also, more rpm on twostep equals more piston speed and more stress to the pins.