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Old 01-24-2014, 02:56 PM   #1
Serkan
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Default Identify these valve springs please

I bought a set of used valve springs for the ej257. They are supposed to be supertech single valve springs according to the seller.

They came from an AXIS (Ron) built longblock. So he is not 100% sure if they are Supertech.

I contacted Supertech (good costumer support) and they said they never made single valve spring for ej205/ej257.

Can anyone identify these ? I searched known brands but couldn't come up with a matching set.

Thanks...


Edit: Supertech told me these are definitely not theirs.





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Last edited by Serkan; 01-24-2014 at 05:27 PM.
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Old 01-25-2014, 12:13 AM   #2
Serkan
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nobody seen these before ?
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Old 01-25-2014, 11:38 AM   #3
fwillyj
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-Crower 68195

-1.720" free length new---.145" wire
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Old 01-25-2014, 12:48 PM   #4
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Thanks for the reply.

That number comes up with springs only and they are not even Subaru specific.

Are you sure about this ?
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Old 01-25-2014, 02:55 PM   #5
fwillyj
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-I'm sure--have used'm for years on Subarus as an easy upgrade over a stock single spring.

-Crower lists them for Toyota and Nissan applications.

-most retainers need to be machined to fit'm and they usually need one shim.
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Old 01-25-2014, 03:00 PM   #6
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So these retainers are machined ?

Also those washers are shims not the seats than ?

I will measure the coil bind and install one of them to the head to find out the seat height
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Old 01-25-2014, 08:45 PM   #7
fwillyj
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-there should be a spring centering seat that goes on top of the shim.

-typical installed height should be about 1.400" and about 68#----open pressure at .400 lift should be about 180#.

-Coil bind should be about a little less than .800".
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Old 01-25-2014, 08:58 PM   #8
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Quote:
Originally Posted by fwillyj View Post
-there should be a spring centering seat that goes on top of the shim.

-typical installed height should be about 1.400" and about 68#----open pressure at .400 lift should be about 180#.

-Coil bind should be about a little less than .800".

So do I just reuse stock spring seats on top of the shim.

Shim is placed at the very bottom than ?

I will measure and compare it to the numbers you gave me.

Thank you for sharing your info and help.
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Old 01-25-2014, 10:30 PM   #9
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-the retainer looks to be titanium---shows where it has been machined on the underside to fit the smaller diameter of the single spring.

-the retainer also looks like it was probably used back when the valve lash was adjusted with lash caps under the follower---early 2000 era.

-if the shim number is a 106 it will fit on top of or under the locator shim---probably should go on the underside.
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Old 01-25-2014, 10:38 PM   #10
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Shims are stamped 101

I took one of the valves off the head.

The shim don't fit on top of the seat (seat hole is larger than shim hole) so I placed it under the seat.

Installed the spring and I measured the height from top of the retainer to the very bottom (head casing)

Measured 1.555", than I measured the thickness of the shim and seat, together they were 0.055"

Than I measured the thickness from top of the retainer to where valve top sits. Measured 0.090"

1.555 - 0.055 - 0.090 = 1.410" installed seat height

First time doing this stuff, I don't know if it is the proper way.

Last edited by Serkan; 01-25-2014 at 10:59 PM.
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Old 01-25-2014, 10:43 PM   #11
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Free length 1.690"

Coil bind 0.865"

According to specs in Crower's site coil bind is 0.860"

http://www.crower.com/index.php/valv...-1-045-od.html
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Old 01-25-2014, 10:53 PM   #12
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0.010 x 5 = 0.050" total coil min gap

0.865 + 0.050 = 0.915"

Seat height = 1.410"

1.410 - 0.915 = 0.495" max lift


I have Kelford R-199-B which has 0.420" lift intake and 0.400" exhaust

So these springs should work for me without a problem.
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Old 01-26-2014, 12:40 AM   #13
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I don't like how the shim underneath the stock seat is smaller in diameter.

I think I will order wider 0.030" thick shims.

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Old 01-26-2014, 11:28 AM   #14
fwillyj
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-the 101 shim should be .688" inside diameter and 1.00" outside

-a #106 shim should be be .719" inside and 1.100" outside ----and this fits onto the top of the spring locater real nice.
--------------------------------------------------
-sounds like you are getting the right numbers----generally the installed height is 1.400"---most cams are right close to .400" lift--and coil bind is far enough away you can shim an extra .030" if you need to.
----------------------------------------------------
-stock springs are typically about 53# at 1.400" and about 146# at 1.000".
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Old 01-26-2014, 12:09 PM   #15
Serkan
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Yes, 101 is exactly what you said.

The stock seat measures 1.100" OD so seems like #106 shim is much better choice.

Since max lift of the cams are not close to coil bind, I can add an extra washer to increase the seat pressure and max lift pressure ?

But will these numbers be too much for stock valves ?



w/ one 0.030" shim

Seat pressure @ 1.400" 66 lbs
Max lift pressure @ 0.980 ~ 166 lbs

With an extra 0.030"
Seat pressure @ 1.370" ~ 74 lbs
Max lift pressure @ 0.950" 174 lbs
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Old 01-26-2014, 05:57 PM   #16
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---63# at 1.400" x 169# at 1.400" has been a pretty good average of these particular single spring pressures used on street driven stuff----with no premature wear issues or spring failures----to about 7800 to 8000 rpm.
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