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Hi,
You probably got a few responses off list too, but I have direct experience=
with the two cams mentions, the Piper BP 270 and the Goodparts GP3. My exp=
erience is 100%TR6, but the numbers do transfer to GT6, IMHO.
The BP270 has a super-flat torque curve. I ran that cam for around 10 years=
in a race-only autocross car eventually pushing the c/r to 12:1 and on a c=
hassis dyno it got up to about 150 lb/ft of torque.
I switched to the Goodparts GP3 in order to try to build in some higher end=
HP. With the GP3 and 12:1, I got almost the same torque, but HP was up abo=
ut 10 HP, all of it at the upper end (4000 to 6000 RPM).
For a street car, I would not go a lot more than 280 degrees seat to seat v=
alve timing. Any more than that and the engine go off song under 2500 RPM. =
This really matters for a street car!!! So, if the car is driven on the str=
eet at all, do not go "hairy" on the cam. You will regret it.
Good luck deciding.
Regards,Bob Lang
On Wednesday, June 24, 2020, 2:22:09 PM EDT, Dennis Walje <walje@sbcglo=
bal.net> wrote: =20
=20
=20
Does anyone know a source for a GT6 performance cam?=C2=A0 I=E2=80=99m buil=
ding a GT6 for street and track days.=20
Thanks=20
Dennis Walje
68 GT6
Sent from my iPhone
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
@yahoo.com
=20
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<html><head></head><body><div class=3D"ydp43de4008yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px=
;"><div></div>
<div dir=3D"ltr" data-setdir=3D"false">Hi,</div><div dir=3D"ltr" da=
ta-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">You pr=
obably got a few responses off list too, but I have direct experience with =
the two cams mentions, the Piper BP 270 and the Goodparts GP3. My experienc=
e is 100%TR6, but the numbers do transfer to GT6, IMHO.<br></div><div dir=
=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"fa=
lse">The BP270 has a super-flat torque curve. I ran that cam for around 10 =
years in a race-only autocross car eventually pushing the c/r to 12:1 and o=
n a chassis dyno it got up to about 150 lb/ft of torque.</div><div dir=3D"l=
tr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">=
I switched to the Goodparts GP3 in order to try to build in some higher end=
HP. With the GP3 and 12:1, I got almost the same torque, but HP was up abo=
ut 10 HP, all of it at the upper end (4000 to 6000 RPM).</div><div dir=3D"l=
tr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">=
For a street car, I would not go a lot more than 280 degrees seat to seat v=
alve timing. Any more than that and the engine go off song under 2500 RPM. =
This really matters for a street car!!! So, if the car is driven on the str=
eet at all, do not go "hairy" on the cam. You will regret it.</div><div dir=
=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"fa=
lse">Good luck deciding.</div><div dir=3D"ltr" data-setdir=3D"false"><br></=
div><div dir=3D"ltr" data-setdir=3D"false">Regards,</div><div dir=3D"ltr" d=
ata-setdir=3D"false">Bob Lang<br></div><div><br></div>
=20
</div><div id=3D"ydp2f12abebyahoo_quoted_3193044971" class=3D"ydp2f=
12abebyahoo_quoted">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
=20
<div>
On Wednesday, June 24, 2020, 2:22:09 PM EDT, Dennis Wal=
je <walje@sbcglobal.net> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Does anyon=
e know a source for a GT6 performance cam? I=E2=80=99m building a GT6=
for street and track days. <br></div><div dir=3D"ltr"><br></div><div dir=
=3D"ltr">Thanks <br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Denni=
s Walje<br></div><div dir=3D"ltr">68 GT6<br></div><div dir=3D"ltr"><br></di=
v><div dir=3D"ltr">Sent from my iPhone<br></div><div dir=3D"ltr">__________=
_____________________________________<br></div><div dir=3D"ltr"><a href=3D"=
mailto:fot@autox.team.net"; rel=3D"nofollow" target=3D"_blank">fot@autox.tea=
m.net</a><br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr"><a href=3D"h=
ttp://www.fot-racing.com" rel=3D"nofollow" target=3D"_blank">http://www.fot=
-racing.com</a><br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Donate=
: <a href=3D"http://www.team.net/donate.html"; rel=3D"nofollow" target=3D"_b=
lank">http://www.team.net/donate.html</a><br></div><div dir=3D"ltr">Archive=
: <a href=3D"http://autox.team.net/archive " rel=3D"nofollow" target=3D"_bl=
ank">http://autox.team.net/archive </a><a href=3D"http://www.team.net/piper=
mail/fot" rel=3D"nofollow" target=3D"_blank">http://www.team.net/pipermail/=
fot</a><br></div><div dir=3D"ltr">Unsubscribe/Manage: <a href=3D"http://aut=
ox.team.net/mailman/options/fot/robertlangtr6@yahoo.com" rel=3D"nofollow" t=
arget=3D"_blank">http://autox.team.net/mailman/options/fot/robertlangtr6@ya=
hoo.com</a><br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr"><br></div>=
</div>
</div>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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