--===============7029840372464231975==
--f46d04289e0b62cc3b053041493c
Having now had several successful track outings, I have come to an
observation about my car's performance. It is a petrol injected TR6.
Flowed head, Goodparts header, and cam whose maker I now cannot remember.
320 degrees, .5 lift at valve, and pretty early and long symmetrical
input/exhaust valve timing. 104 degrees lobe separation.
Car reves past 7000 rpm easily in 4th [4:11 rear end]. The problem is
low/midrange torque.. I was slightly out dragged by good Spitfires coming
out of turn 10 onto the straight at Laguna. By turn 1 I was faster than
them. Power comes on too late and torque needs to improve at low end.
Looking for recommendations on a more appropriate duration and
input/exhaust open/close timing.
More importantly, I need a recommendation for cam vendor/recommended
grind. Had a Kastner S9 in my last [now stolen] car -- but the gentleman
who did the grinding has pasted on and Moon Eyes no longer does them.
I know I have not said enough about the current cam -- just I am away from
home and do not have the cam grind card with me.
--f46d04289e0b62cc3b053041493c
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:georgia,=
serif;font-size:small">Having now had several successful track outings, I h=
ave come to an observation about my car's performance.=C2=A0 It is a pe=
trol injected TR6.=C2=A0 Flowed head, Goodparts header, and cam whose maker=
I now cannot remember. =C2=A0320 degrees, .5 lift at valve, and pretty ear=
ly and long symmetrical input/exhaust valve timing. 104 degrees lobe separa=
tion.</div><div class=3D"gmail_default" style=3D"font-family:georgia,serif;=
font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-famil=
y:georgia,serif;font-size:small">Car reves past 7000 rpm easily in 4th [4:1=
1 rear end].=C2=A0 The problem is low/midrange torque..=C2=A0 I was slightl=
y out dragged by good Spitfires coming out of turn 10 onto the straight at =
Laguna.=C2=A0 By turn 1 I was faster than them.=C2=A0 Power comes on too la=
te and torque needs to improve at low end.=C2=A0 Looking for recommendation=
s on a more appropriate duration and input/exhaust open/close timing.</div>=
<div class=3D"gmail_default" style=3D"font-family:georgia,serif;font-size:s=
mall"><br></div><div class=3D"gmail_default" style=3D"font-family:georgia,s=
erif;font-size:small">More importantly, I need a recommendation for cam ven=
dor/recommended grind.=C2=A0 Had a Kastner S9 in my last [now stolen] car -=
- but the gentleman who did the grinding =C2=A0has pasted on and Moon Eyes =
no longer does them.</div><div class=3D"gmail_default" style=3D"font-family=
:georgia,serif;font-size:small"><br></div><div class=3D"gmail_default" styl=
e=3D"font-family:georgia,serif;font-size:small">I know I have not said enou=
gh about the current cam -- just I am away from home and do not have the ca=
m grind card with me.</div><div class=3D"gmail_default" style=3D"font-famil=
y:georgia,serif;font-size:small"><br></div><div class=3D"gmail_default" sty=
le=3D"font-family:georgia,serif;font-size:small"><br></div></div>
--f46d04289e0b62cc3b053041493c--
--===============7029840372464231975==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
--===============7029840372464231975==--
|