Iconel/ titanium valves?
08-12-2008, 07:45 PM
#1
Iconel/ titanium valves? Are titanium intake and inconel exhaust valves necessary for a TT, 18psi set-up, looking to push between 1000 - 1200 hp? What are the determining factors for such exotic engine components? Thanks for your help.
Last edited by sixt9er; 08-13-2008 at 07:31 PM.
08-13-2008, 01:11 AM
#4
There are people running built LS2 blocks (stock LS1 crank, forged rods/pistons) 364ci with out of the box AFR 225's/TFS 235's, LS6 intake/ported TB, stock Z06 cam, larger injectors, with factory 5.3/6.0 exhaust manifolds and a large turbo making 1000rwhp without issues.
If you are racing for extended periods with lots of high RPMs and the stress from forced induction (heat) those exotic parts if you have the coin are nice. 8 titanium valves will be over $1K new. Inconnell probably more.....
Look up Mike Browns build.... he is running low 8's on a combo similar to the one mentioned in the 1st paragraph.
If you are racing for extended periods with lots of high RPMs and the stress from forced induction (heat) those exotic parts if you have the coin are nice. 8 titanium valves will be over $1K new. Inconnell probably more.....
Look up Mike Browns build.... he is running low 8's on a combo similar to the one mentioned in the 1st paragraph.
08-13-2008, 09:19 AM
#5
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I use TI intake valves when you think 8000rpm will be normal in the particular car, especially extended high rpm like land speed or big track road race. The Inconel valves I use most times when a supercharger/turbocharger is involved, although low power daily drivers might get by with stock valves. The inconel valves are only a little more than race stainless valves, you should be able to buy a set for under 300.
Kurt
Kurt
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08-13-2008, 03:36 PM
#8
I wonder how much of a headache/cost it is to have that done on an ET head.
I'm seriously thinking, that when I take the motor apart over the winter that it may get prepped for a procharger setup... not sure at what point it's needed/a good idea to do this stuff, I'm gonna guess the motor will stay at a max of 7500 rpm, probably remain a hydraulic camshaft, at least for another season or 3
I'm seriously thinking, that when I take the motor apart over the winter that it may get prepped for a procharger setup... not sure at what point it's needed/a good idea to do this stuff, I'm gonna guess the motor will stay at a max of 7500 rpm, probably remain a hydraulic camshaft, at least for another season or 3
08-13-2008, 07:36 PM
#9
I use TI intake valves when you think 8000rpm will be normal in the particular car, especially extended high rpm like land speed or big track road race. The Inconel valves I use most times when a supercharger/turbocharger is involved, although low power daily drivers might get by with stock valves. The inconel valves are only a little more than race stainless valves, you should be able to buy a set for under 300.
Kurt
Kurt
Are you using inconel valves for the intake and the exhaust? Would the manley severe duty valved be effected by the extreme heat of a tt set-up? Thanks for your input.
08-13-2008, 09:04 PM
#10
I use TI intake valves when you think 8000rpm will be normal in the particular car, especially extended high rpm like land speed or big track road race. The Inconel valves I use most times when a supercharger/turbocharger is involved, although low power daily drivers might get by with stock valves. The inconel valves are only a little more than race stainless valves, you should be able to buy a set for under 300.
Kurt
Kurt
Comp 26089 =230 @ 2.000 seat load and 580 @ 1.300 open load
Not technically. Copper / Berilium seats help with valve bounce, but aren't necessary.
08-13-2008, 09:40 PM
#11
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The Manley severe duty is a very high quality material, I think it would work well.
Kurt
Kurt
I had planned on using Manley severe duty stainless valves for the intake and exhaust. I was under the impression that a step or two above the stock valves would work fine, in my set-up, because there are some people using "stock" valves with great horsepower results.
Are you using inconel valves for the intake and the exhaust? Would the manley severe duty valved be effected by the extreme heat of a tt set-up? Thanks for your input.
Are you using inconel valves for the intake and the exhaust? Would the manley severe duty valved be effected by the extreme heat of a tt set-up? Thanks for your input.
08-13-2008, 09:42 PM
#12
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The valvetrain parts you spec would go over 8000 I believe, but I think the oil system will fail at that level/RPM.
Kurt
Kurt
With 2.08 titanium 7mm intake, stainless 1.60 8mm exhaust valves, and comp 26089 springs () with titanium retainers how high would you rev a turbo 408 on the stock oiling system. I remember LTLHomer's twin turbo 347 died at 8800 rpms with Harlan's old twin turbo setup.
Comp 26089 =230 @ 2.000 seat load and 580 @ 1.300 open load
Not technically. Copper / Berilium seats help with valve bounce, but aren't necessary.
Comp 26089 =230 @ 2.000 seat load and 580 @ 1.300 open load
Not technically. Copper / Berilium seats help with valve bounce, but aren't necessary.
