NinetynineSS

iTrader: (1)

I caught wind of this in another thread, and it was a new term to me. Details?? Thanks.

conan

iTrader: (5)

After swaping stock valve springs to a stiffer spring or a dual spring you should let the engine run to full temp, shut in down and let it cool down to room temp. Then do it again, full temp,cool down. No high rpm's while doing this. I also did these heat cycles when I built my forged moter, for all the new bearings, rings, dual valve springs, ect.

TooLateVTEC

iTrader: (2)

Yep, what he said.

1SLwLS1

iTrader: (6)

x3. I let my engine idle to operating temp, cool down for 1.5hrs and do it again.

SOMbitch

iTrader: (8)

This is myth. they are already heat treated from the maker..... I don't think it is a good idea to beat on cold springs though......

NinetynineSS

iTrader: (1)

Interesting indeed. I am going to be assembling my new engine tomorrow, and don't see how this could hurt. Thanks for the info.

02*C5

iTrader: (1)

Its like SOMBitch said. Springs are already heat cycled from factory and at higher temps that our engine can get them. they have to have the elasticity to maintain the "spring" to them and they need to be strong enough not to break under normal heat and pressures they are expected to perform in. While it does not hurt it does not help out in any way shape or form. Also like said previously do not beat up on cold rings, that is the one point where they can and will break.

Beaflag VonRathburg

iTrader: (176)

Waste of gas aka $$$ depending on what type of rings you are using. People will always argue about break in processes of new engines, but as long as the engine is assembled properly, and the rings seated you shouldn't have issues.