Has anyone weighed the stock valves? - D-series.org

The_Acid_Beaver · 08-24-2008, 05:14 AM

I am interested in finding out how much the stock valves weigh. I have an uncomfirmed spec of 50g for the intake valves.

Anyone got anything else?

Thanks.

95 ZC LX · 08-24-2008, 05:19 PM

when i get mine back from the machine shop, i will weight them and find out...

The_Acid_Beaver · 08-29-2008, 01:58 AM

Thanks!

sebastian-crx · 08-29-2008, 09:27 AM

I can weight some valves...

Intake and exhaust?

K2e2vin · 08-29-2008, 09:34 AM

I had valves but threw them away.

Nice sig Sebastian!

The_Acid_Beaver · 08-29-2008, 11:18 AM

Sebastian-

If you could weigh the stock intake and exhaust valves, I would be very appreciative! I am trying to figure out which aftermarket valves would be good for my application, and I want to compare weights to the stock valves.

95 ZC LX · 08-29-2008, 06:54 PM

sorry, havent got mine back yet...I am having over-sized Ferrea valves and springs for mine

The_Acid_Beaver · 08-29-2008, 08:09 PM

If you have the Ferrea valves, coul dyou weigh them for me? How much larger than stock are then?

Pata · 08-29-2008, 08:49 PM

I pulled apart a y7 Head last week. If I make it in time to the Post Office tomorrow, I'll weigh all of them together, Intake only and Exhaust only

sebastian-crx · 08-30-2008, 01:04 AM

Quote:

Originally Posted by The_Acid_Beaver

Sebastian-

If you could weigh the stock intake and exhaust valves, I would be very appreciative! I am trying to figure out which aftermarket valves would be good for my application, and I want to compare weights to the stock valves.

No Problem Dude...

My camera and the Valves are in my Garage, to the evening i weight it and make Pictures of that.

I think the 1mm Oversize Valves from supertech are good, what dit you think?

Head Diameter: 30.50 mm (0.5+)
Stem Diameter: 6.57 mm
Length: 105.40 mm
Coating: Black Nitrided

The shafts are smaller, and the valve head is bigger...

sebastian-crx · 08-30-2008, 06:07 AM

Exhaust Valve

Intake Valve

I Hope it Helps to find lighter Valves.

Let me know it when you find a set....

95 ZC LX · 08-30-2008, 03:43 PM

Quote:

Originally Posted by The_Acid_Beaver

If you have the Ferrea valves, coul dyou weigh them for me? How much larger than stock are then?

well it will be assembled when i get it, but i will ask if he knows what they weigh....the valves and spring combo (according to Ferrea) are good for over 10k rpm, which i will not be doing anyway.

i believe he said they are 1.0mm over-sized, i do know he was boring out each valve area to accommodate the new valve size.

i'll post pics when i get it back.

The_Acid_Beaver · 08-31-2008, 05:53 AM

Sebastian-

Thanks! That will be very helpfull, as long as I can find some information on what the weights of the aftermarket valves are. Oh, which engine are these valves out of? I am just making sure.

Supertechs are REALLY nice pieces, especially for the price. I will most likely use them on my next two builds. However, I am not qualified at this time to say if you should use oversized valves or not. On some heads, with stock cylinder bore diameters, flow can actually decrease with larger valves, and you only see the true benefits of the larger valves when you open up the bores to 78mm (after the engine is sleeved) and can de-shroud the chamber next to the valves.

95 ZC-
That would be some ore good information to have. Whever you get to it, thanks!

sebastian-crx · 08-31-2008, 12:46 PM

Yes the price is realy good.

I think the next head i built with the Valves.
I will drive the head on a 76mm block, with an portet head and the crespo H4 cams with the other stuff.

The Valves comes from a D16Z5 Head.
I weight D16A9 Valves too, its the same weight

The_Acid_Beaver · 08-31-2008, 09:52 PM

Thanks!

76mm is a step in the right direction. I would LOVE to sleeve my block and go 78mm, but my wallet doesn't like the idea. =)

sebastian-crx · 09-01-2008, 06:18 AM

Quote:

Originally Posted by The_Acid_Beaver

Thanks!

76mm is a step in the right direction. I would LOVE to sleeve my block and go 78mm, but my wallet doesn't like the idea. =)

Right. My wallet is to small for that

Im not sure what i built. The block with 76mm P29 or a block with the endyn pistons and eagle rods.
The things for that are all on my table...

I will going N/A.

With itb`s to 8500 + Rpm.
And this is to much for the stock rods.

The_Acid_Beaver · 09-01-2008, 06:39 AM

Endyn pistons for sure with those goals. Just make sure you wack the head a bit to get some decent quench to make tuning it a bit easier. I would probably go with the mid-domes, zero deck them and then trim the head to get a decent amount of sqiush. A long while ago, someone made 170WHP with Endyn 78mm turbo pistons just after break-in before installing the turbo! I really might have to save up for sleeving my block! LOL!

08-24-2008, 05:14 AM	#1 (permalink)
The_Acid_Beaver All powerful D-series member iTrader: (14) Join Date: Oct 2006 Location: In a state of denial Posts: 3,219 Rep Power: 7 View My Photo Gallery	Has anyone weighed the stock valves? I am interested in finding out how much the stock valves weigh. I have an uncomfirmed spec of 50g for the intake valves. Anyone got anything else? Thanks. __________________ Not so obvious and ruthlessly odd . . . My quench is tighter than yours! :P #1 P29 hater.

08-24-2008, 05:19 PM	#2 (permalink)
95 ZC LX D-series lover iTrader: (0) Join Date: May 2006 Location: Phoenix Posts: 213 Rep Power: 5	when i get mine back from the machine shop, i will weight them and find out... __________________ 95 Civic 4dr LX 5spd DOHC ZC/ZC LSD/Raxles...AFI kit, Skunk 2 intake mani, Cometic HG and ARP studs, ROSS pistons, Crower Rods, Neptune/Demon (13psi, Garrett t3/t4 ar .63 57 trim) 06 Dodge Ram Cummins 4dr NOT stock 93 Accord 4dr LX AT 96 Accord 4dr EX V6

08-29-2008, 01:58 AM	#3 (permalink)
The_Acid_Beaver All powerful D-series member iTrader: (14) Join Date: Oct 2006 Location: In a state of denial Posts: 3,219 Rep Power: 7 View My Photo Gallery	Thanks! __________________ Not so obvious and ruthlessly odd . . . My quench is tighter than yours! :P #1 P29 hater.

08-29-2008, 09:34 AM	#5 (permalink)
K2e2vin All powerful D-series member iTrader: (15) Join Date: Aug 2005 Location: Raleigh, NC Posts: 4,251 Rep Power: 8 View My Photo Gallery	I had valves but threw them away. Nice sig Sebastian! __________________ -Kevin N. E. 1988 Honda Civic hatchback; D15B VTEC Dac Biet 1992 Honda Accord LX coupe Have a look-see: http://www.zeitgeistmovie.com/

08-29-2008, 11:18 AM	#6 (permalink)
The_Acid_Beaver All powerful D-series member iTrader: (14) Join Date: Oct 2006 Location: In a state of denial Posts: 3,219 Rep Power: 7 View My Photo Gallery	Sebastian- If you could weigh the stock intake and exhaust valves, I would be very appreciative! I am trying to figure out which aftermarket valves would be good for my application, and I want to compare weights to the stock valves. __________________ Not so obvious and ruthlessly odd . . . My quench is tighter than yours! :P #1 P29 hater.

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08-29-2008, 09:27 AM	#4 (permalink)
sebastian-crx Member iTrader: (0) Join Date: Jun 2007 Location: Germany (Bremen) Posts: 62 Rep Power: 0	I can weight some valves... Intake and exhaust?

08-29-2008, 06:54 PM	#7 (permalink)
95 ZC LX D-series lover iTrader: (0) Join Date: May 2006 Location: Phoenix Posts: 213 Rep Power: 5	sorry, havent got mine back yet...I am having over-sized Ferrea valves and springs for mine __________________ 95 Civic 4dr LX 5spd DOHC ZC/ZC LSD/Raxles...AFI kit, Skunk 2 intake mani, Cometic HG and ARP studs, ROSS pistons, Crower Rods, Neptune/Demon (13psi, Garrett t3/t4 ar .63 57 trim) 06 Dodge Ram Cummins 4dr NOT stock 93 Accord 4dr LX AT 96 Accord 4dr EX V6

08-29-2008, 08:09 PM	#8 (permalink)
The_Acid_Beaver All powerful D-series member iTrader: (14) Join Date: Oct 2006 Location: In a state of denial Posts: 3,219 Rep Power: 7 View My Photo Gallery	If you have the Ferrea valves, coul dyou weigh them for me? How much larger than stock are then? __________________ Not so obvious and ruthlessly odd . . . My quench is tighter than yours! :P #1 P29 hater.

08-29-2008, 08:49 PM	#9 (permalink)
Pata \/ apply baby lotion here \/ iTrader: (61) Join Date: Jun 2008 Location: City of Angels Posts: 6,520 Rep Power: 23 View My Photo Gallery	I pulled apart a y7 Head last week. If I make it in time to the Post Office tomorrow, I'll weigh all of them together, Intake only and Exhaust only __________________ Get your 'd-series.org sticker' HERE My For Sale Thread

08-30-2008, 06:07 AM	#11 (permalink)
sebastian-crx Member iTrader: (0) Join Date: Jun 2007 Location: Germany (Bremen) Posts: 62 Rep Power: 0	Exhaust Valve Intake Valve I Hope it Helps to find lighter Valves. Let me know it when you find a set....

08-31-2008, 05:53 AM	#13 (permalink)
The_Acid_Beaver All powerful D-series member iTrader: (14) Join Date: Oct 2006 Location: In a state of denial Posts: 3,219 Rep Power: 7 View My Photo Gallery	Sebastian- Thanks! That will be very helpfull, as long as I can find some information on what the weights of the aftermarket valves are. Oh, which engine are these valves out of? I am just making sure. Supertechs are REALLY nice pieces, especially for the price. I will most likely use them on my next two builds. However, I am not qualified at this time to say if you should use oversized valves or not. On some heads, with stock cylinder bore diameters, flow can actually decrease with larger valves, and you only see the true benefits of the larger valves when you open up the bores to 78mm (after the engine is sleeved) and can de-shroud the chamber next to the valves. 95 ZC- That would be some ore good information to have. Whever you get to it, thanks! __________________ Not so obvious and ruthlessly odd . . . My quench is tighter than yours! :P #1 P29 hater.

08-31-2008, 12:46 PM	#14 (permalink)
sebastian-crx Member iTrader: (0) Join Date: Jun 2007 Location: Germany (Bremen) Posts: 62 Rep Power: 0	Yes the price is realy good. I think the next head i built with the Valves. I will drive the head on a 76mm block, with an portet head and the crespo H4 cams with the other stuff. The Valves comes from a D16Z5 Head. I weight D16A9 Valves too, its the same weight

08-31-2008, 09:52 PM	#15 (permalink)
The_Acid_Beaver All powerful D-series member iTrader: (14) Join Date: Oct 2006 Location: In a state of denial Posts: 3,219 Rep Power: 7 View My Photo Gallery	Thanks! 76mm is a step in the right direction. I would LOVE to sleeve my block and go 78mm, but my wallet doesn't like the idea. =) __________________ Not so obvious and ruthlessly odd . . . My quench is tighter than yours! :P #1 P29 hater.

09-01-2008, 06:39 AM	#17 (permalink)
The_Acid_Beaver All powerful D-series member iTrader: (14) Join Date: Oct 2006 Location: In a state of denial Posts: 3,219 Rep Power: 7 View My Photo Gallery	Endyn pistons for sure with those goals. Just make sure you wack the head a bit to get some decent quench to make tuning it a bit easier. I would probably go with the mid-domes, zero deck them and then trim the head to get a decent amount of sqiush. A long while ago, someone made 170WHP with Endyn 78mm turbo pistons just after break-in before installing the turbo! I really might have to save up for sleeving my block! LOL! __________________ Not so obvious and ruthlessly odd . . . My quench is tighter than yours! :P #1 P29 hater.

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