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For a TR6 engine, I used Isky valve springs VWE005SP116 With 320lbs/in rate=
(5.72kgs/mm). With an installed height of 33.8mm and full open height of 2=
1.3mm, seat pressure is 34kgs (about 75 lbs) and 105kgs (230lbs) at full li=
ft.=20
So lift is 12.5mm/0.49in and then the seat pressure is already rather low. =
Coil bind height of these springs is about 18mm so a bit more lift is possi=
ble. It there is enough material thickness, the seats for the springs can b=
e reamed out to get the necessary clearance between the windings.=20
Marcel=20
Van: "fot" <fot@autox.team.net>=20
Aan: spitlist@cox.net, "Scott Janzen" <sjanzen@me.com>, "fot" <fot@autox.te=
am.net>=20
Verzonden: Donderdag 31 oktober 2019 23:16:13=20
Onderwerp: Re: [Fot] Valve Springs - GT6, Spitfire, Tr6=20
Try British Frame and Engine. They are not as stiff as the Isky Springs, bu=
t can tolerate more lift. Be sure you have adequate seat pressure as well a=
s sufficient pressure at full lift, per your cam specs. These work well wit=
h the Tilden 298 cam from Ken Knight.=20
-----Original Message-----=20
From: JOE CURRY via Fot <fot@autox.team.net>=20
To: Scott Janzen <sjanzen@me.com>; Scott Janzen via Fot <fot@autox.team.net=
>=20
Sent: Thu, Oct 31, 2019 4:19 pm=20
Subject: Re: [Fot] Valve Springs - GT6, Spitfire, Tr6=20
I bought my Isky dual spring set through Ted Schumacher to match his cam th=
at he also sold me. Works great. Talk to him about the details.=20
On October 31, 2019 at 11:49 AM Scott Janzen via Fot <fot@autox.team.net> w=
rote:=20
I=E2=80=99m trying to accommodate a high lift cam/rocker combination and th=
e Isky springs (VWE005/SP116) I=E2=80=99ve been using will be right at full=
bind with this combo.=20
What are you all using - I=E2=80=99m looking for something that can handle =
about 0.54=E2=80=9D of net valve lift.=20
Let me know what spring mfr/part number you are using and I=E2=80=99ll take=
it from there.=20
Thanks!=20
BQ_BEGIN
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]=20
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arcel@telenet.be=20
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<html><body><div style=3D"font-family: Verdana, Arial, Helvetica, sans-seri=
f; font-size: 10pt; color: #000000"><div><br></div><div>For a TR6 engine, I=
used Isky valve springs VWE005SP116 With 320lbs/in rate (5.72kgs/mm)=
. With an installed height of 33.8mm and full open height of 21.3mm, seat p=
ressure is 34kgs (about 75 lbs) and 105kgs (230lbs) at full lift.</div><div=
>So lift is 12.5mm/0.49in and then the seat pressure is already rather low.=
Coil bind height of these springs is about 18mm so a bit more lift is poss=
ible. It there is enough material thickness, the seats for the spring=
s can be reamed out to get the necessary clearance between the windin=
gs.</div><div>Marcel</div><hr id=3D"zwchr" data-marker=3D"__DIVIDER__"><div=
data-marker=3D"__HEADERS__"><b>Van: </b>"fot" <fot@autox.team.net><b=
r><b>Aan: </b>spitlist@cox.net, "Scott Janzen" <sjanzen@me.com>, "fot=
" <fot@autox.team.net><br><b>Verzonden: </b>Donderdag 31 oktober 2019=
23:16:13<br><b>Onderwerp: </b>Re: [Fot] Valve Springs - GT6, Spitfire, Tr6=
<br></div><br><div data-marker=3D"__QUOTED_TEXT__"><div style=3D"color:blac=
k;font: 10pt arial;">Try British Frame and Engine. They are not as st=
iff as the Isky Springs, but can tolerate more lift. Be sure you have=
adequate seat pressure as well as sufficient pressure at full lift, per yo=
ur cam specs. These work well with the Tilden 298 cam from Ken Knight=
.<br>
<br>
<br>
<div style=3D"font-family:helvetica,arial;font-size:10pt;color:black">-----=
Original Message-----<br>
From: JOE CURRY via Fot <fot@autox.team.net><br>
To: Scott Janzen <sjanzen@me.com>; Scott Janzen via Fot <fot@autox=
.team.net><br>
Sent: Thu, Oct 31, 2019 4:19 pm<br>
Subject: Re: [Fot] Valve Springs - GT6, Spitfire, Tr6<br>
<br>
<div id=3D"yiv9040763471">
<div>I bought my Isky dual spring set through Ted Schumacher to match his c=
am that he also sold me. Works great. Talk to him about the details.<br c=
lear=3D"none">
=20
=20
=20
<div class=3D"yiv9040763471yqt2548486923" id=3D"yiv9040763471yqtfd45519"><b=
r clear=3D"none">
<blockquote>=20
On October 31, 2019 at 11:49 AM Scott Janzen via Fot <fot@autox.team.=
net> wrote:
<br clear=3D"none">
<br clear=3D"none">I=E2=80=99m trying to accommodate a high lift cam/roc=
ker combination and the Isky springs (VWE005/SP116) I=E2=80=99ve been using=
will be right at full bind with this combo.
=20
<div class=3D"yiv9040763471">
What are you all using - I=E2=80=99m looking for something that can han=
dle about 0.54=E2=80=9D of net valve lift.
</div>
=20
<div class=3D"yiv9040763471">
<br clear=3D"none" class=3D"yiv9040763471">
</div>
=20
<div class=3D"yiv9040763471">
Let me know what spring mfr/part number you are using and I=E2=80=99ll =
take it from there.
</div>
=20
<div class=3D"yiv9040763471">
<br clear=3D"none" class=3D"yiv9040763471">
</div>
=20
<div class=3D"yiv9040763471">
Thanks!
</div>
</blockquote>=20
<br clear=3D"none">
</div>
<blockquote>
<div class=3D"yiv9040763471yqt2548486923" id=3D"yiv9040763471yqtfd01711">
_______________________________________________
<br clear=3D"none">fot@autox.team.net
<br clear=3D"none">
<br clear=3D"none">http://www.fot-racing.com
<br clear=3D"none">
<br clear=3D"none">Donate: http://www.team.net/donate.html
<br clear=3D"none">Archive: http://autox.team.net/archive http://www.tea=
m.net/pipermail/fot
</div>
<br clear=3D"none">Unsubscribe/Manage: http://autox.team.net/mailman/option=
s/fot/spitlist@cox.net
=20
<div class=3D"yiv9040763471yqt2548486923" id=3D"yiv9040763471yqtfd05940"><b=
r clear=3D"none">
<br clear=3D"none">
<br clear=3D"none">
</div>
</blockquote>
<div class=3D"yiv9040763471yqt2548486923" id=3D"yiv9040763471yqtfd96012">=
=20
<br clear=3D"none">
=20
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