Will someone weigh a stock 2.16 L92 intake valve!!!??
01-11-2007, 07:00 PM
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Will someone weigh a stock 2.16 L92 intake valve!!!?? it would be much appreciated.... also do you know the weight of the stock titanium C6Z06 intake valve for comparison???
apparently Manley is making aftermarket valves... they did for Livernois?
apparently Manley is making aftermarket valves... they did for Livernois?
01-12-2007, 06:46 AM
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Originally Posted by SStrokerAce
You ever weight a AFR 225 valve?
Bret
Bret
01-12-2007, 05:49 PM
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Originally Posted by Forteen3GT
also do you know the weight of the stock titanium C6Z06 intake valve for comparison???
Intake was 76g. and exhaust was 72g.
01-12-2007, 06:06 PM
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Originally Posted by 2c5s
Intake was 76g. and exhaust was 72g.
so if the stock LS7 valves weight in around 74grams and the L92 is around 108grams...... wont we see floating issues?
01-12-2007, 06:42 PM
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The stock L92 valve is still lighter than a 2.1" solid stem (109g) 8mm LS1/LS2 intake valve. A 8mm solid stem 2.08" valve is 107g. A 11/32" solid stem 2.02" stock length valve for your older SBC's is 111g. These number's should help put perspective on this discussion. For the size of the stock L92 heads they seem fairly light to me. With a good after market valve spring, valve float should not be a problem.
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01-13-2007, 09:05 AM
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Originally Posted by Forteen3GT
so if the stock LS7 valves weight in around 74grams and the L92 is around 108grams...... wont we see floating issues?
They are 76 g., not 74, my REV L-92's were 103g., with a quality spring, you should not have any valve control issue's. I have a set of AFR 205 valves, I'll pull the scale out and see how much they are for a comparision. I ran those heads to 7k with the 8019 springs and LSK lobes with no issues.
01-13-2007, 10:11 AM
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Originally Posted by 2c5s
They are 76 g., not 74, my REV L-92's were 103g., with a quality spring, you should not have any valve control issue's. I have a set of AFR 205 valves, I'll pull the scale out and see how much they are for a comparision. I ran those heads to 7k with the 8019 springs and LSK lobes with no issues.
i was saying average of the intake and exhaust.
Weigh those AFR's for me.... and if anyone else has an LSx valve go ahead and weigh it as well..... just for comparisons sake. I wanna put this to bed.
01-13-2007, 11:06 AM
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Originally Posted by 2c5s
Intake was 76g. and exhaust was 72g.
01-13-2007, 11:32 AM
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Originally Posted by 2c5s
My REV L-92's were 103 g., with a quality spring, you should not have any valve control issue's.
01-13-2007, 06:57 PM
#17
Stock L92 intake valve - 108-109 grams
Stock LS7 intake valve - 76 grams
Aftermarket L92 intake valve - 103-104 grams
Aftermarket titanium intake valve - 83 grams (estimate)
So 20 grams is a lot? What all benefits do you obtain with 160 grams total (8 valves - 20 grams saving each)?
SStrokerAce, how are you estimating 83 grams for a titanium L92 intake valve?
Stock LS7 intake valve - 76 grams
Aftermarket L92 intake valve - 103-104 grams
Aftermarket titanium intake valve - 83 grams (estimate)
So 20 grams is a lot? What all benefits do you obtain with 160 grams total (8 valves - 20 grams saving each)?
SStrokerAce, how are you estimating 83 grams for a titanium L92 intake valve?
01-13-2007, 10:24 PM
#18
FormerVendor
The Ti Valves I am doing for the L92 are about 75 grams so that's basically 30+ grams lighter.
With the right cam lobes and springs the stock L92 valves will still probably go 7000 rpm easy but losing 30G off of them makes a lot more possible.
With the right cam lobes and springs the stock L92 valves will still probably go 7000 rpm easy but losing 30G off of them makes a lot more possible.
01-13-2007, 10:37 PM
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Originally Posted by racer7088
The Ti Valves I am doing for the L92 are about 75 grams so that's basically 30+ grams lighter.
With the right cam lobes and springs the stock L92 valves will still probably go 7000 rpm easy but losing 30G off of them makes a lot more possible.
With the right cam lobes and springs the stock L92 valves will still probably go 7000 rpm easy but losing 30G off of them makes a lot more possible.
Erik.... I sent a stock intake valve to you, it will arrive by tuesday, if ya need the other 7 let me know.
I dont plan to spin mine to 7k.... but 6700rpm would be nice, and 7k max for any stock tachometer misreadings.
I just cant see paying over 800 bones for intake valves right now. If an aftermarket set for under 250 was available that would suffice.... but not 800 bones for what I am wanting to accomplish.
