What seats for Ti valves?
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What seats for Ti valves?
Got my used Ti valves yesterday... shipped in a Del West box... the instructions on the box say use a beryllium copper seat or another softer deal... what say you?
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Re: What seats for Ti valves?
Most BeCu seats are huge. They're only practical in the race heads which have the extra aluminum in there to accept them. Maybe there exists a smaller diameter, smaller depth version, but those I've seen would be too large for the heads I would be using.
I was then told, "Are you going to be running 500 miles at 9,000 RPMs? That's where the BeCu seats are required. Your application doesn't need them. Just run on iron seats."
I was then told, "Are you going to be running 500 miles at 9,000 RPMs? That's where the BeCu seats are required. Your application doesn't need them. Just run on iron seats."
Jack Vines
Studebaker-Packard V8 Limited
Obsolete Engineering
Studebaker-Packard V8 Limited
Obsolete Engineering
Re: What seats for Ti valves?
Personally I couldn't run 5 miles @ 9 rpm's....
Thanks Jack....
Thanks Jack....
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Re: What seats for Ti valves?
The copper seats are more for the exhaust side as the ti is lousy at transferring heat to the guides and seat, the copper sucks the heat out.
On uncoated ti valves they may reduce wear.
You can call performance alloy and have them make you some moldstar 90 exhaust seats.
It's a copper beryllium replacement that is supposed to be superior.
On uncoated ti valves they may reduce wear.
You can call performance alloy and have them make you some moldstar 90 exhaust seats.
It's a copper beryllium replacement that is supposed to be superior.
Re: What seats for Ti valves?
The GM LS7/9 used powdered metal seats with their coated Ti Del West valves. Cu Berylium is very hazardous and breathing or getting chips into your body can really mess you up.
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Re: What seats for Ti valves?
I stopped using BC seats and started using nickel bronze IIRC. If I think of the name of the company I bought them from ill post it. The NB seats machined better and didn't produce the hazardous things that BC does.
Just thought of it.
Kibblewhite machine or something like that. It's defiantly Kibblewhite.
Just thought of it.
Kibblewhite machine or something like that. It's defiantly Kibblewhite.
Re: What seats for Ti valves?
Great replies... thanks gentlemen.
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Re: What seats for Ti valves?
What say me? Me say that if the supplier recommends that you install Beryllium Copper seats, than you do that. OR call them and inquire about using alternative materials. Much more reliable than asking a bunch of us doofaces on the internet . . . . . . .
Bill
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Perfect Circle Doctor of Motors certification
SAE Member (30 years)
ASE Master Certified Engine Machinist (+ two otherASE Master Certifications)
AERA Certified Professional Engine Machinist
Re: What seats for Ti valves?
Nodular iron, bronze or CuB or another softer metal... at least that's what Del West sez...engineguyBill wrote: ↑Mon Oct 16, 2017 11:26 pm What say me? Me say that if the supplier recommends that you install Beryllium Copper seats, than you do that. OR call them and inquire about using alternative materials. Much more reliable than asking a bunch of us doofaces on the internet . . . . . . .
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Re: What seats for Ti valves?
Pretty sure Del west sells the ms90 seats
Performance alloy makes the ms90, for injection molding applications, but they actually have a valve seat department, they will make the seats to your specs.
Performance alloy makes the ms90, for injection molding applications, but they actually have a valve seat department, they will make the seats to your specs.
Re: What seats for Ti valves?
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Re: What seats for Ti valves?
Thanks Chad...
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