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Valve spring upgrades
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gegge  



Joined: 27 Jul 2007
Posts: 1124
Location: Sweden

PostPosted: Sun Jun 26, 2022 8:48 pm    Post subject: Re: Valve spring upgrades Reply with quote

Cedric wrote:
Karlio wrote:
What upgrade valve springs are out there for a n/a race engine?


Hmm, i wonder what springs Gegge have in his n/a build, he use to find stuff from all sort of car that fit, he isn't that frequent here nowdays though.


In the tuned n/a engine I put valvesprings from the group buy 10-15 years ago.
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Fifty50Plus  



Joined: 28 Feb 2008
Posts: 1353
Location: Washington DC area

PostPosted: Mon Jun 27, 2022 12:08 pm    Post subject: Reply with quote

Hmmm....Maybe it was longer than five years ago for the last spring group buy. Jeez, I'm getting old.
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924RACR  



Joined: 29 Jul 2001
Posts: 8794
Location: Royal Oak, MI, USA

PostPosted: Mon Jun 27, 2022 8:17 pm    Post subject: Re: Valve spring upgrades Reply with quote

gegge wrote:

In the tuned n/a engine I put valvesprings from the group buy 10-15 years ago.


That sounds about the right timeline for the ones I have...
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Vaughan Scott
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924RACR  



Joined: 29 Jul 2001
Posts: 8794
Location: Royal Oak, MI, USA

PostPosted: Tue Jun 28, 2022 5:12 am    Post subject: Reply with quote

Dealer did write back and confirmed the fitment is correct for part # PCG109623 - but I forgot to ask if that covers one valve or one motor! It's listed as a "set" - have written back to try to get that answer... Oops.
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Vaughan Scott
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924RACR  



Joined: 29 Jul 2001
Posts: 8794
Location: Royal Oak, MI, USA

PostPosted: Tue Jun 28, 2022 10:17 pm    Post subject: Reply with quote

Heard back late yesterday from the dealer, confirming that's one set is one inner and one outer springs, 8 sets will be needed per motor - at about $63 per set.

That sounds much more like the expected Porsche pricing!!

Still, to get original quality and new...
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Vaughan Scott
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Mike9311  



Joined: 14 Dec 2004
Posts: 1678
Location: Chicago-ish

PostPosted: Wed Jun 29, 2022 3:44 am    Post subject: Reply with quote

Vaughan, you guys are using the stock valves, right?
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924RACR  



Joined: 29 Jul 2001
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Location: Royal Oak, MI, USA

PostPosted: Wed Jun 29, 2022 4:11 am    Post subject: Reply with quote

I am, yup...
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Vaughan Scott
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Mike9311  



Joined: 14 Dec 2004
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Location: Chicago-ish

PostPosted: Wed Jun 29, 2022 6:02 am    Post subject: Reply with quote

If I am looking around one has to be sure a spring and retainer choice would work with the stem size
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MikeJinCO  



Joined: 08 Jun 2010
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Location: Maysville, Colorado

PostPosted: Wed Jun 29, 2022 8:26 pm    Post subject: Reply with quote

Vaughan

When I had 931 spring sets made for the 931 head, RD Spring charged $322 for the springs/retainers/ seats and delivered in 2-3 weeks. There was also a significant reduction in weight as the beehive springs are lighter than stock and the retainer was about 8gm vs 28 stock. All he would need would be the dimension from the bottom on the intake valve spring seat to the top of the valve stem.

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