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Originally Posted by Young Performance
(Post 2921658)
Jim V is working on the heads and I am building the short blocks. Should be ready soon.
Eddie |
Originally Posted by MER Performance
(Post 2922989)
You should be using a alloy valve seats on Ti valves, I use alloy on all my heads, if not the intake always on the exhaust.
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Originally Posted by 2112
(Post 2922999)
Which alloy, Copper-Beryllium? Are you running Titanium valves in your boat engines?
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Originally Posted by MER Performance
(Post 2923253)
Yes, only Ti on 12 degree heads like profiler, copper-berylium seats are the way to go, better heat transfer and corroision protection on the exhaust, have you ever tried cutting in a valve seat on alloy, it's very hard material. 20-25 $ per seat plus machining, most people don't understand the difference between the two. If you need to know the exact alloy makeup between intake and exhaust, I would have to look it up on the spec sheet.
If you have the time, it would be great, who is your source on valves and seats? What do you use when they aren't 12 degree heads? :drink: . |
Originally Posted by 2112
(Post 2922813)
How do the titanium valves hold up in the marine application? Are you using them for both intake and exhaust?
My 1.90" Inconel exhaust valves are as heavy as my 2.4" SS intakes. Would love to lighten the weight but I always thought Titanium is for drag motors. Send them to Jimmy V:drink: |
Originally Posted by 2112
(Post 2923340)
If you have the time, it would be great, who is your source on valves and seats? What do you use when they aren't 12 degree heads? :drink:
. Ferrea valves or if going custom Victory Valves for Ti, it wasn't cost effective for Victory, to do inconel and stainless in the the past. |
Originally Posted by RunninHotRacing158
(Post 2923635)
I was sold on the idea the Titanium Valves are incredibly light and cant be without them ...good luck Bro
Send them to Jimmy V:drink: Good to see someone out there knows quality; Percision Products, in Arden, NC. |
Originally Posted by MER Performance
(Post 2924262)
Stainless intakes , inconel exhaust. C.V Products for seats
Ferrea valves or if going custom Victory Valves for Ti, it wasn't cost effective for Victory, to do inconel and stainless in the the past. BTW with the help on both threads (2 sites) :drink: . |
3 Attachment(s)
Originally Posted by MER Performance
(Post 2924271)
I would run a Ti, intake of 2.400" , but always run a inconel exhaust valve, in a boat on pump fuel, you bet! SC like yours, I hope so.
Good to see someone out there knows quality; Percision Products, in Arden, NC. |
Ran Del West intake and exhaust titanium's in some 14 deg's with 9.5:1. Ended up having problems on exhaust side and Del West said that with a compression ratio of only 9.5:1 I needed to get them out and go with a different valve as they do not like low compression ratio's. Higher compression no problem as apparently the exhaust runs cooler? Intake were fine.
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Jim Valako says Inconnel on exhaust. Probably going to spring for ti intake valves 2.4. Mark Bob Madera is designing the cam for me.
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