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Valve spring poundage.

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Valve spring poundage.
Robert Foreman Offline
Precision Engineer
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Joined: Aug 2017 Posts: 557 Threads: 89
Reputation: 7
Location: Deepest darkest Kent
#1
13-06-2021, 03:13 PM
Does anyone have any values of  poundages for valve springs? Installed poundage and say at 5/16" lift.
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stuartu Offline
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Joined: Aug 2017 Posts: 260 Threads: 1
Reputation: 5
#2
13-06-2021, 04:06 PM
Robert, I have already asked the question of my guru who has given me an answer which he wishes to check in his notes in the coming week. Meanwhile, all others please respond!

Regards,

Stuart
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Charles P Offline
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Joined: Aug 2017 Posts: 1,532 Threads: 60
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#3
13-06-2021, 08:18 PM
I'll see if I can find my notes.
I know that on my engine it's not that high and it revs happily to what I want. 
I remember that I found Tony Betts' doubles were good, having a decent nose load, not too high at full lift and usefully the thinner wire used meant that they didn't get coil bound before 330 lift.

C
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Robert Foreman Offline
Precision Engineer
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Joined: Aug 2017 Posts: 557 Threads: 89
Reputation: 7
Location: Deepest darkest Kent
#4
20-06-2021, 07:54 AM
So apart from Charles and Stuart's guru, surely there must be others who have calculated spring poundage over the years?
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