valve float @5000

[machoneman]

2X for the update.

[PetesPonies]

New fuel pump and .060 shims the car runs great all the way to 5500 ish 12.87@103 in a 3600 lbs Fairlane with 3.89 gears
Very happy

Amazing what just a 1/16" of extra squeeze will do for you  Good info for people to use as research!!

[WConley]

Amazing what just a 1/16" of extra squeeze will do for you  Good info for people to use as research!!

What's probably happening is that he's getting closer to coil bind at full lift.  My work years ago on the SOHC valvetrain showed how this quiets down the surging motion of the spring coils at high rpm.  I found that setting up for around 0.050" from coil bind at full lift gives you the full benefit while staying safe.  The NASCAR guys run about 0.003" from coil bind 

[Barry_R]

What's probably happening is that he's getting closer to coil bind at full lift.  My work years ago on the SOHC valvetrain showed how this quiets down the surging motion of the spring coils at high rpm.  I found that setting up for around 0.050" from coil bind at full lift gives you the full benefit while staying safe.  The NASCAR guys run about 0.003" from coil bind 

That was a pretty cool test series.  I think we all learned/confirmed a lot.

[cammerfe]

Hey Barry---
What we've just seen in this thread is one of the reasons why this site is unique.

Jay, and all the rest of you, we're doing a good thing here.

KS

[machoneman]

Hey, Bill! Can you repost a few of your SOHC spring vids again? They were so cool and with the passage of time, I'll venture newer members never saw them.

[Stangman]

So if the 60 thousandths shim is not enough and it made it ok for now is there more power to be had by doing it properly??

[WConley]

Hey, Bill! Can you repost a few of your SOHC spring vids again? They were so cool and with the passage of time, I'll venture newer members never saw them.

Sure!  Give me a couple of days to get some family out of town and then dig the videos up.

[fryedaddy]

i saw this issue on a dyno pull the other day.everyone thought it was valve float by the way it sounded,but it turned out to be a loose distributor wire.

[machoneman]

Hey, Bill! Can you repost a few of your SOHC spring vids again? They were so cool and with the passage of time, I'll venture newer members never saw them.

Sure!  Give me a couple of days to get some family out of town and then dig the videos up.

Great! I'm sure many will enjoy!