408 hyd roller, too much spring pressure?
You had a bad experience with beehives. Fine. Englert Racing ran Comp beehives on a 2.3 Ford to 9200rpm without issue:
Ford Lima 2300 cam help please - Don Terrill’s Speed-Talk
On the subject of beehive vs conical rpm, there appear to be a few people out there getting decent rpm on beehives (see below).
I know you told me to do my research, but have you?
That's the trouble with talking in absolutes ("99.999% this, 8K that" etc) – you will always find an example that does not conform to your own experiences or opinion. Just sayin'
10K rpm on beehives here:
How high can you REV on these Beehive valve springs? (9K+ fine?) - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community
9K here:
Beehive valve springs: benefits?
8-9K here:
Single valve springs upgrade and rev limit
8+K here:
Beehive spring performance ? - Don Terrill’s Speed-Talk
Ok lol…your first link is about a slightly hotter than stock cam. You can run ANY spring on that junk and it will be fine.
The second link you posted had the correct answer in post 3. Depends on the lobes. An engine Turing 9k with easy lobes is one thing, and it won’t make much more power than it did at 8k.
Put lobes on it that make power at 9k and it will bust springs.
You had a bad experience with beehives. Fine. Englert Racing ran Comp beehives on a 2.3 Ford to 9200rpm without issue:
Ford Lima 2300 cam help please - Don Terrill’s Speed-Talk
On the subject of beehive vs conical rpm, there appear to be a few people out there getting decent rpm on beehives (see below).
I know you told me to do my research, but have you?
That's the trouble with talking in absolutes ("99.999% this, 8K that" etc) – you will always find an example that does not conform to your own experiences or opinion. Just sayin'
10K rpm on beehives here:
How high can you REV on these Beehive valve springs? (9K+ fine?) - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community
9K here:
Beehive valve springs: benefits?
8-9K here:
Single valve springs upgrade and rev limit
8+K here:
Beehive spring performance ? - Don Terrill’s Speed-Talk
Your first link was about a cam that was pretty much stock. So about any spring would work on that.
The second link had he correct answer in post 3. Lobes matters. You can have two cams that both pull to 9k and one won’t make any power there and will be easy on the springs. The other cam will make power up there and be harder on the springs. Horsepower IS RPM and RPM is hard in springs. That’s life if you want to run with the big dogs.
The third link is again about stock junk where virtually there are a dozen or more spring choices that will work.
The next link is a Supra forum. Post 6 nailed it. More RPM with a double and Ti retainer. I haven’t seen anyone post they found extra power and/or life with a BH.
And I remember the ST thread. No one except Vizard was exalting BH springs. Some said they only use a single spring (I assume they were including straight springs in that comment as well) on anything unless class rules mandated it.
There was one post where they were using a HR and BH springs and they made it to 7200. I was going to ask why they were using a BH, and if they tested anything else. But I didn’t, because that place is a **** show if you question a standing paradigm.
God forbid you suggest to someone there to use another than 45 degree seat or that maybe a back cut isn’t a good thing. You’ll have 8 dudes come out of the woodwork claiming it can’t be done.
So I read the links and I don’t see a single example of someone saying a BH was an improvement over a straight spring in power, reliability or both.
I’m not opposed to anyone running a BH spring. I am diametrically and adamantly opposed to telling anyone to use a BH spring when they have a geometry issue.
That will NEVER change. I don’t like cobbling **** and I don’t like the cobblers who do it.