I've got a mostly stock GSR head except for the fact that it has SS valves and the valve seats have been resurfaced. The springs are stock.

I currently don't have a revlimiter and have always been careful about watching that 8k mark. There have been several occasions where I have accidentally brought it around 8500 to 9000 rpms. Am I lucky that I havent floated my valves or have the lightened valves helped me? Did my redline rise or am I just a lucky bastard?

 

Stainless steel is not lighter than regular steel...

 

What valves are they? they may be lighter because of a thinner valve stem (like itr valves) but not because of the fact they are ss.
Anyway since you are on stock cams by the sound of it I guess you are getting away with it, but don't try it with aftermarket cams.

 

stiffer valve springs + biger cames raise the power band... after maket ecu or chiped computers raise the redline.

 

that is correct hondahead

 

These are REV valves and they are ligtened. I should have mentioned that. But thanks for not answering the question, honda head. I know what stiffer springs do, but that wasn't the question at hand.

 

50% luck.....50% that honda is the shiznit! haha j/p who knows maybe if you had stock valves you could have broken one, in one of those instances. but i would say no. do the rest of the head then you could actually go up there. Assuming your making power.

 

i had a stock b16 with a turbo and i would rev it to 8500 because i didnt have a rev limiter and it was fine also the weight of your valves doesnt allow higher rev if you know what i mean

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">he weight of your valves doesnt allow higher rev if you know what i mean </TD></TR></TABLE>

why not? There is less weight for the spring to pull on. Or is it such a small amount that it doesnt matter?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aeka GSR &raquo;</TD></TR><TR><TD CLASS="quote">why not? There is less weight for the spring to pull on. Or is it such a small amount that it doesnt matter?</TD></TR></TABLE>

I'm not sure if BOOSTED-ED meant what you're thinking, but the miniscule weight of the valves sure does matter. There's a reason why the springs are so stiff that you can't compress them by hand, there's a reason why the valve stem is of such a thickness, and there's a reason why the things begin to float at only 500rpms over redline. It's because when the valves are opening and closing 70 times every second, every gram makes a difference. Inertial forces become huge at those rpm.