Are Ti retainers ness and why in the hell do they cost so much????
11-20-2008, 07:47 PM
#1
Are Ti retainers ness and why in the hell do they cost so much????
I had Pat G spec me a cam for my 1500 HD something a little more aggresive for my new motor and my added CR. Anyway he recommended me to run Comp 928s with Ti retainers. The heads I have now have 928s in them but I don't know if they have Ti retainers or not. To minimize down time I have access to a spare set of 317s so I was going to have them worked so the only down time would be swapping the motors out. Well I checked on the price and WOW they are high. Do I need them, and what is their purpose over stock? Thanks
11-20-2008, 08:26 PM
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the ti retainers are lighter for running higher rpms without valve float. you may not "need" them but they are a good addition if you like to run your engine at 6000+ rpms. also depend on the ramp rates on your cam.
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11-20-2008, 09:40 PM
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Any chance to reduce valvetrain mass yet retain strength is a good thing. Are Ti retainers necessary for typical mild cam street apps below, say, 6500 RPM? No. BUT, If I'm going to invest money into a good CNC job with new valves also going to the effort to match a cam to my application then I would spend the extra coin on the Ti retainers.
11-20-2008, 11:34 PM
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Ti retainers along with locks can signiicantly reduce "valve weight". So you'll need to run less spring presure to do the samething. Also by running less "weight" you won't kill or murder your roller lifters since you can reduce your spring pressure.
I killed a couple of lifters by running high spring pressures with out "valve weight" reductions in the year of 5.0 I had.
I also used tool steel retainers and locks which are lighter then normal stuff but not as light as TI. None the less it helped my 400 sbc touch 7000 rpm with out killing my cam lobes or lifters.
This also works for you guys on the boost since your valve acts like a parachute, and the higher the pressure or bigger the valve the larger the problem.
I killed a couple of lifters by running high spring pressures with out "valve weight" reductions in the year of 5.0 I had.
I also used tool steel retainers and locks which are lighter then normal stuff but not as light as TI. None the less it helped my 400 sbc touch 7000 rpm with out killing my cam lobes or lifters.
This also works for you guys on the boost since your valve acts like a parachute, and the higher the pressure or bigger the valve the larger the problem.
11-21-2008, 06:37 AM
#10
But see my red line will be 6500 and I will be shifting at 6200. I will look into the Patriot stuff, the Comp stuff was over $600. Are the Patriot springs any good? The cams lift is like .605, would a spring rated at .650 be to stiff and yeild too much spring pressure? Sorry if these questions are common knowledge but I am learning about valve train now. Every other time I just bought a set of heads and bolted them on. I have never had stockers worked