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cant help with the coil problem
but inquiring minds want to know hp and torque
:_)
frank
From: Andrew Uprichard <auprichard@uprichard.net>
To: triumphs@autox.team.net=20
Sent: Thursday, September 17, 2015 1:41 PM
Subject: [TR] TR3 coil question
=20
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4895570876 {margin:1.0in 1.0in 1.0in 1.0in;}#yiv4895570876 div.yiv489557087=
6WordSection1 {}-->I recently finished the restoration of a =E2=80=9957 sma=
ll-mouth with a number of upgrades / modifications including oversize pisto=
ns, ported head, lightened flywheel, SU HS6 carbs with long intake manifold=
, and a 1,2,3 distributor. =C2=A0The car runs great, but I seem to be fryin=
g coils, usually after pushing the revs. =C2=A0The first time it happened, =
I called 1,2,3 and they reminded me I had to use a coil with more than 1.0 =
(and ideally more than 1.5) ohms resistance and no external ballast.=C2=A0 =
I tried a regular Lucas coil and all was well until I took the car to a rol=
ling road yesterday and we ran it up to 5500 rpm.=C2=A0 (By the way, the ca=
rburetion was fine=C2=A0 throughout the rev range, so I don=E2=80=99t think=
this is a fuel issue).=C2=A0 The car performed well on the dyno, but on th=
e way home started to backfire on acceleration, the same symptoms I have ha=
d twice before and have been =E2=80=9Ccured=E2=80=9D by replacing the coil.=
=C2=A0This time I have ordered a Bosch Blue, 3.5 ohm coil, as recommended =
by 1,2,3. =C2=A0If it happens again, I think I will revert to a standard po=
ints or Pertronix =C2=A0set-up and see how the car runs, but I was wonderin=
g if anyone had had a similar experience or might have any suggestions. =C2=
=A0Andrew Uprichard =C2=A0P.S.=C2=A0 The one thing we did observe at the ro=
lling road was there was too much advance:=C2=A0 around 10 degrees at idle =
and 35 degrees (25 added by the !,2,3 distributor) at 4000 rpm. Although th=
e car wasn=E2=80=99t pinging, it did flatten out around 4500 where one migh=
t have expected more power.=C2=A0 I can=E2=80=99t see how too much advance =
could be a culprit, but I am open to any thoughts. =C2=A0
** triumphs@autox.team.net **
Archive: http://www.team.net/archive
3@yahoo.com
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<html><body><div style=3D"color:#000; background-color:#fff; font-family:He=
lveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;fo=
nt-size:16px"><div dir=3D"ltr"><span>cant help with the coil problem</span>=
</div><div dir=3D"ltr"><span><br></span></div><div dir=3D"ltr" id=3D"yui_3_=
16_0_1_1442518461053_15429"><span id=3D"yui_3_16_0_1_1442518461053_15430">b=
ut inquiring minds want to know hp and torque</span></div><div dir=3D"ltr" =
id=3D"yui_3_16_0_1_1442518461053_15428"><span><br></span></div><div dir=3D"=
ltr" id=3D"yui_3_16_0_1_1442518461053_15427"><span>:_)</span></div><div dir=
=3D"ltr" id=3D"yui_3_16_0_1_1442518461053_15426"><span><br></span></div><di=
v dir=3D"ltr" id=3D"yui_3_16_0_1_1442518461053_15425"><span>frank</span></d=
iv><div dir=3D"ltr" id=3D"yui_3_16_0_1_1442518461053_15424"><span><br></spa=
n></div><div dir=3D"ltr" id=3D"yui_3_16_0_1_1442518461053_15423"><span><br>=
</span></div><br> <div style=3D"font-family: HelveticaNeue, Helvetica Neue=
, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id=3D"yui_=
3_16_0_1_1442518461053_15402"> <div style=3D"font-family: HelveticaNeue, He=
lvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;=
" id=3D"yui_3_16_0_1_1442518461053_15401"> <div dir=3D"ltr" id=3D"yui_3_16_=
0_1_1442518461053_15417"> <hr size=3D"1"> <font size=3D"2" face=3D"Arial" =
id=3D"yui_3_16_0_1_1442518461053_15433"> <b><span style=3D"font-weight:bold=
;">From:</span></b> Andrew Uprichard <auprichard@uprichard.net><br> <=
b><span style=3D"font-weight: bold;">To:</span></b> triumphs@autox.team.net=
<br> <b><span style=3D"font-weight: bold;">Sent:</span></b> Thursday, Sept=
ember 17, 2015 1:41 PM<br> <b><span style=3D"font-weight: bold;">Subject:</=
span></b> [TR] TR3 coil question<br> </font> </div> <div class=3D"y_msg_con=
tainer" id=3D"yui_3_16_0_1_1442518461053_15400"><br><div id=3D"yiv489557087=
6"><style><!--
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_filtered #yiv4895570876 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 =
4;}
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=09{}
--></style><div id=3D"yui_3_16_0_1_1442518461053_15399"><div class=3D"yiv48=
95570876WordSection1" id=3D"yui_3_16_0_1_1442518461053_15398"><div class=3D=
"yiv4895570876MsoNormal" id=3D"yui_3_16_0_1_1442518461053_15434">I recently=
finished the restoration of a =E2=80=9957 small-mouth with a number of upg=
rades / modifications including oversize pistons, ported head, lightened fl=
ywheel, SU HS6 carbs with long intake manifold, and a 1,2,3 distributor.</d=
iv><div class=3D"yiv4895570876MsoNormal" id=3D"yui_3_16_0_1_1442518461053_1=
5435"> </div><div class=3D"yiv4895570876MsoNormal" id=3D"yui_3_16_0_1=
_1442518461053_15403">The car runs great, but I seem to be frying coils, us=
ually after pushing the revs.</div><div class=3D"yiv4895570876MsoNormal"> &=
nbsp;</div><div class=3D"yiv4895570876MsoNormal" id=3D"yui_3_16_0_1_1442518=
461053_15397">The first time it happened, I called 1,2,3 and they reminded =
me I had to use a coil with more than 1.0 (and ideally more than 1.5) ohms =
resistance and no external ballast. I tried a regular Lucas coil and =
all was well until I took the car to a rolling road yesterday and we ran it=
up to 5500 rpm. (By the way, the carburetion was fine througho=
ut the rev range, so I don=E2=80=99t think this is a fuel issue). The=
car performed well on the dyno, but on the way home started to backfire on=
acceleration, the same symptoms I have had twice before and have been =E2=
=80=9Ccured=E2=80=9D by replacing the coil.</div><div class=3D"yiv489557087=
6MsoNormal"> </div><div class=3D"yiv4895570876MsoNormal">This time I =
have ordered a Bosch Blue, 3.5 ohm coil, as recommended by 1,2,3.</div><div=
class=3D"yiv4895570876MsoNormal"> </div><div class=3D"yiv4895570876M=
soNormal">If it happens again, I think I will revert to a standard points o=
r Pertronix set-up and see how the car runs, but I was wondering if a=
nyone had had a similar experience or might have any suggestions.</div><div=
class=3D"yiv4895570876MsoNormal"> </div><div class=3D"yiv4895570876M=
soNormal">Andrew Uprichard</div><div class=3D"yiv4895570876MsoNormal"> &nbs=
p;</div><div class=3D"yiv4895570876MsoNormal">P.S. The one thing we d=
id observe at the rolling road was there was too much advance: around=
10 degrees at idle and 35 degrees (25 added by the !,2,3 distributor) at 4=
000 rpm. Although the car wasn=E2=80=99t pinging, it did flatten out around=
4500 where one might have expected more power. I can=E2=80=99t see h=
ow too much advance could be a culprit, but I am open to any thoughts.</div=
><div class=3D"yiv4895570876MsoNormal"> </div></div></div></div><br><=
br>** <a ymailto=3D"mailto:triumphs@autox.team.net"; href=3D"mailto:triumphs=
@autox.team.net">triumphs@autox.team.net</a> **<br><br>Donate: <a href=3D"h=
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e.html</a><br>Archive: <a href=3D"http://www.team.net/archive"; target=3D"_b=
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e/Manage: <a href=3D"http://autox.team.net/mailman/options/triumphs/yellowt=
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phs/yellowtr3@yahoo.com</a><br><br><br></div> </div> </div> </div></body><=
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** triumphs@autox.team.net **
Archive: http://www.team.net/archive
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