Nitrous y0

[AzCivic]

Originally posted by cashizslick
Regaurdless of wether he did or not does not mean it is not possible to get "Valve Float" when using Nitrous (especially a big shot).

Stock Valve springs (in your case, Dseries valve springs) are not designed to move as fast as a shot of Naws is capable of making them move - therefore, its a good idea to upgrade this so you dont get valve float.

BTW, its always a good idea to use performance springs with performance retainers.

I'd be willing to bet some CTR springs and Retainers (since they are good till 9k rpms) would be a great "inexpensive" way to beef up your valvetrain to handle more nnnnaaaaawwwwwwssssss.

so how will the valve springs move any faster??? if you keep the stock revlimit they're still only going to move as fast as stock at each rpm point. you'll move through the rpm range faster than stock but so does putting it in neutral and revving the engine.

the cam's profile and how fast the engine is spinning determines what springs you need. by looking at this animation: http://auto.howstuffworks.com/engine.htm

you can see that the springs are not under any strain during the power stroke of the pistons. the only thing that is under any amount extra strain in the valvetrain are the valves and theyre wedged into the head.

btw the animation should have the springs compressing, not moving up and down with the valve.