useless

Hi all.. how are you?
What are the advantages of running stiffer valve springs? Do they kill the valve guides? What are the advantages of running stiffer springs?

INJECTED250

they keep the rocker on the cam... with steap profiles and wild lift the valve spring can not provide enuf force to keep the rocker and roller in contact with the cam, this causes valve float, the valve does not close quck enuf...
Stiffer springs get rid of this problem... But they do chew up usefull kw's to operate em..
The aim is to have the weakest spring you can have without risking valve float, any thing more is waste

__________________
EB FALCON
98 T5 gear box (was auto)
Wade 977b cam
3.7 lsd
AU bottem end
ELXR6 ported Head
PH4480 Pacemakers

useless

Ok so stiff springs must add to valve train loss and power loss....How does valve float affect performance?

INJECTED250

causes miss firein.... aka valve bounceing

__________________
EB FALCON
98 T5 gear box (was auto)
Wade 977b cam
3.7 lsd
AU bottem end
ELXR6 ported Head
PH4480 Pacemakers

useless

Your a top bloke...thanks..

460Fairmont

At high rpm.
Stronger springs will also allow the engine to rev higher as valve bounce
tends to limit revs.

__________________
XD Fairmont, X-COP, BIG BLOCK still in bits
Injected RS2000 2 door (new toy)
EA Falcon, MPFI, 16in XR6 wheels,
2x1000W 12in subdoofers, splits,
TE cortina,Toyota Supra,TD cortina