Subject: [Fot] SU needle recommendation for Kent Cam (or something else?)

From: David Gott via Fot <[email-masked]>
Date: Thu, 16 May 2024 20:34:15 +0000 (UTC)

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Hi FOT,
Just put a Kent TR4-7 cam in my TR4; 300 duration. =C2=A03 laps at Summit p=
oint so far, and past half throttle under load, power cuts and air fuel enr=
ichens to 10.5:1. =C2=A0BUT plugs are white.=C2=A0 =C2=A0Was running an RC =
needle from the old cam, tried RA and not much improvement. =C2=A0Even when=
 moving adjustment to full lean. =C2=A0The last test session is cancelled, =
so want to see air a best guess on a needle to try - figure someone must ha=
ve experience with this cam and SU=E2=80=99s. =C2=A011.3:1 compression=E2=
=80=A6.=C2=A0

Also, just put in a new HD condenser just in case it=E2=80=99s an ignition =
problem.
Any ideas or thoughts? =C2=A0Won=E2=80=99t be able to test the condenser un=
til qualifying tomorrow, but air file holding steady at 2500 rpm shows 11.5=
:1 which seems way rich; old cam would be lean under those conditions.

Thanks for any ideas!!
Dave Gott

Sent from Yahoo Mail for iPhone

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Hi FOT,<div><br></div><div>Just put a Kent TR4-7 cam in my TR4; 300 duratio=
n. &nbsp;3 laps at Summit point so far, and past half throttle under load, =
power cuts and air fuel enrichens to 10.5:1. &nbsp;BUT plugs are white.&nbs=
p; &nbsp;Was running an RC needle from the old cam, tried RA and not much i=
mprovement. &nbsp;Even when moving adjustment to full lean. &nbsp;The last =
test session is cancelled, so want to see air a best guess on a needle to t=
ry - figure someone must have experience with this cam and SU=E2=80=99s. &n=
bsp;11.3:1 compression=E2=80=A6.&nbsp;<br><br>Also, just put in a new HD co=
ndenser just in case it=E2=80=99s an ignition problem.</div><div><br></div>=
<div>Any ideas or thoughts? &nbsp;Won=E2=80=99t be able to test the condens=
er until qualifying tomorrow, but air file holding steady at 2500 rpm shows=
 11.5:1 which seems way rich; old cam would be lean under those conditions.=
</div><div><br></div><div><br></div><div>Thanks for any ideas!!</div><div><=
br></div><div>Dave Gott<br><br><div class=3D"yahoo-signature"><a style=3D"f=
ont-size:12px" href=3D"https://mail.onelink.me/107872968?pid=3Dnativeplacem=
ent&amp;c=3DGlobal_Acquisition_YMktg_315_Internal_EmailSignature&amp;af_sub=
1=3DAcquisition&amp;af_sub2=3DGlobal_YMktg&amp;af_sub3=3D&amp;af_sub4=3D100=
000604&amp;af_sub5=3DEmailSignature__Static_">Sent from Yahoo Mail for iPho=
ne</a><br></div></div>
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_______________________________________________
[email-masked]

http://www.fot-racing.com

Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot

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From: Anthony Parker via Fot <[email-masked]>
Date: Thu, 16 May 2024 21:10:18 +0000

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What needles do you have?

As last resorts,:
-Reduce fuel level in float bowl.
-Move fattest needle down in its mount.
-Put heavier spring on top of air valve.

________________________________
From: Fot <[email-masked]> on behalf of David Gott via Fot <fot=
@autox.team.net>
Sent: Thursday, May 16, 2024 4:34 PM
To: FOT Triumph <[email-masked]>
Subject: [Fot] SU needle recommendation for Kent Cam (or something else?)

Hi FOT,

Just put a Kent TR4-7 cam in my TR4; 300 duration.  3 laps at Summit point =
so far, and past half throttle under load, power cuts and air fuel enrichen=
s to 10.5:1.  BUT plugs are white.   Was running an RC needle from the old =
cam, tried RA and not much improvement.  Even when moving adjustment to ful=
l lean.  The last test session is cancelled, so want to see air a best gues=
s on a needle to try - figure someone must have experience with this cam an=
d SU=92s.  11.3:1 compression=85.

Also, just put in a new HD condenser just in case it=92s an ignition proble=
m.

Any ideas or thoughts?  Won=92t be able to test the condenser until qualify=
ing tomorrow, but air file holding steady at 2500 rpm shows 11.5:1 which se=
ems way rich; old cam would be lean under those conditions.

Thanks for any ideas!!

Dave Gott

Sent from Yahoo Mail for iPhone<https://mail.onelink.me/107872968?pid=3Dnat=
iveplacement&c=3DGlobal_Acquisition_YMktg_315_Internal_EmailSignature&af_su=
b1=3DAcquisition&af_sub2=3DGlobal_YMktg&af_sub3=3D&af_sub4=3D100000604&af_s=
ub5=3DEmailSignature__Static_>

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<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0);">
What needles do you have?</div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0);">
As last resorts,:</div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0);">
-Reduce fuel level in float bowl.</div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0);">
-Move fattest needle down in its mount.</div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0);">
-Put heavier spring on top of air valve.</div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
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<br>
</div>
<div id=3D"appendonsend"></div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
 color: rgb(0, 0, 0);">
<br>
</div>
<hr style=3D"display: inline-block; width: 98%;">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><span style=3D"font-family: Calibri, =
sans-serif; font-size: 11pt; color: rgb(0, 0, 0);"><b>From:</b>&nbsp;Fot &l=
t;[email-masked]&gt; on behalf of David Gott via Fot &lt;fot@au=
tox.team.net&gt;<br>
<b>Sent:</b>&nbsp;Thursday, May 16, 2024 4:34 PM<br>
<b>To:</b>&nbsp;FOT Triumph &lt;[email-masked]&gt;<br>
<b>Subject:</b>&nbsp;[Fot] SU needle recommendation for Kent Cam (or someth=
ing else?)</span>
<div>&nbsp;</div>
</div>
<div>Hi FOT,</div>
<div><br>
</div>
<div>Just put a Kent TR4-7 cam in my TR4; 300 duration. &nbsp;3 laps at Sum=
mit point so far, and past half throttle under load, power cuts and air fue=
l enrichens to 10.5:1. &nbsp;BUT plugs are white.&nbsp; &nbsp;Was running a=
n RC needle from the old cam, tried RA and not much
 improvement. &nbsp;Even when moving adjustment to full lean. &nbsp;The las=
t test session is cancelled, so want to see air a best guess on a needle to=
 try - figure someone must have experience with this cam and SU=92s. &nbsp;=
11.3:1 compression=85.&nbsp;<br>
<br>
Also, just put in a new HD condenser just in case it=92s an ignition proble=
m.</div>
<div><br>
</div>
<div>Any ideas or thoughts? &nbsp;Won=92t be able to test the condenser unt=
il qualifying tomorrow, but air file holding steady at 2500 rpm shows 11.5:=
1 which seems way rich; old cam would be lean under those conditions.</div>
<div><br>
</div>
<div><br>
</div>
<div>Thanks for any ideas!!</div>
<div><br>
</div>
<div>Dave Gott<br>
<br>
</div>
<div style=3D"font-size: 12px;"><a href=3D"https://mail.onelink.me/10787296=
8?pid=3Dnativeplacement&amp;c=3DGlobal_Acquisition_YMktg_315_Internal_Email=
Signature&amp;af_sub1=3DAcquisition&amp;af_sub2=3DGlobal_YMktg&amp;af_sub3=
=3D&amp;af_sub4=3D100000604&amp;af_sub5=3DEmailSignature__Static_" id=3D"OW=
A80ac10c5-5b1b-6fb3-acb6-644ed27aa6d5" class=3D"OWAAutoLink" data-auth=3D"N=
otApplicable">Sent
 from Yahoo Mail for iPhone</a></div>
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From: Mike Harmuth via Fot <[email-masked]>
Date: Thu, 16 May 2024 18:40:38 -0400

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Dave, here's a link to an online SU needle comparison program. Select your
carb size and then add needles from the pull down to compare them. The RC
and RA have different curves but end up in about the same place.

 How's your timing? Is the advance working? Check your throttle linkage,
are you getting the butterflies fully open?
Compression check out OK? Do you have another set of plugs? Did you
re-check rocker clearance? Cam timing off?

http://www.mintylamb.co.uk/suneedle/

Good luck

mike h

<http://www.avg.com/email-signature?utm_medium=3Demail&utm_source=3Dlink&ut=
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On Thu, May 16, 2024 at 4:51=E2=80=AFPM David Gott via Fot <[email-masked].=
net>
wrote:

> Hi FOT,
>
> Just put a Kent TR4-7 cam in my TR4; 300 duration.  3 laps at Summit poin=
t
> so far, and past half throttle under load, power cuts and air fuel
> enrichens to 10.5:1.  BUT plugs are white.   Was running an RC needle fro=
m
> the old cam, tried RA and not much improvement.  Even when moving
> adjustment to full lean.  The last test session is cancelled, so want to
> see air a best guess on a needle to try - figure someone must have
> experience with this cam and SU=E2=80=99s.  11.3:1 compression=E2=80=A6.
>
> Also, just put in a new HD condenser just in case it=E2=80=99s an ignitio=
n problem.
>
> Any ideas or thoughts?  Won=E2=80=99t be able to test the condenser until
> qualifying tomorrow, but air file holding steady at 2500 rpm shows 11.5:1
> which seems way rich; old cam would be lean under those conditions.
>
>
> Thanks for any ideas!!
>
> Dave Gott
>
> <https://mail.onelink.me/107872968?pid=3Dnativeplacement&c=3DGlobal_Acqui=
sition_YMktg_315_Internal_EmailSignature&af_sub1=3DAcquisition&af_sub2=3DGl=
obal_YMktg&af_sub3=3D&af_sub4=3D100000604&af_sub5=3DEmailSignature__Static_=
> Donate: http://www.team.net/donate.html
> Unsubscribe/Manage <http://www.team.net/pipermail/fotUnsubscribe/Manage>:
> http://autox.team.net/mailman/options/fot/[email-masked]
>
>
>

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<div dir=3D"ltr">Dave, here&#39;s a link to an online SU needle comparison =
program. Select your carb size and then add needles=C2=A0from the pull down=
 to compare them. The RC and RA have different curves but end up in about t=
he same place.<div><br></div><div>=C2=A0How&#39;s your timing? Is the advan=
ce working? Check your throttle linkage, are you getting the butterflies=C2=
=A0fully open?=C2=A0<div>Compression check out OK? Do you have another set =
of plugs? Did you re-check rocker clearance? Cam timing=C2=A0off?<br><div><=
br><div><a href=3D"http://www.mintylamb.co.uk/suneedle/">http://www.mintyla=
mb.co.uk/suneedle/</a><br></div><div><br></div><div><img src=3D"cid:ii_lw9t=
hpek0" alt=3D"image.png" width=3D"562" height=3D"318"><br></div></div></div=
><div>Good luck</div><div><br></div><div>mike h</div></div></div><div id=3D=
"DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br><table style=3D"border-top:1px s=
olid #d3d4de"><tr><td style=3D"width:55px;padding-top:13px"><a href=3D"http=
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eight: 29px;"></a></td><td style=3D"width:470px;padding-top:12px;color:#414=
24e;font-size:13px;font-family:Arial,Helvetica,sans-serif;line-height:18px"=
>Virus-free.<a href=3D"http://www.avg.com/email-signature?utm_medium=3Demai=
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able><a href=3D"#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width=3D"1" height=
=3D"1"></a></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"g=
mail_attr">On Thu, May 16, 2024 at 4:51=E2=80=AFPM David Gott via Fot &lt;<=
a href=3D"mailto:[email-masked]">[email-masked]</a>&gt; wrote:<br><=
/div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bo=
rder-left:1px solid rgb(204,204,204);padding-left:1ex"><div>
Hi FOT,<div><br></div><div>Just put a Kent TR4-7 cam in my TR4; 300 duratio=
n. =C2=A03 laps at Summit point so far, and past half throttle under load, =
power cuts and air fuel enrichens to 10.5:1.=C2=A0 BUT plugs are white.=C2=
=A0 =C2=A0Was running an RC needle from the old cam, tried RA and not much =
improvement.=C2=A0 Even when moving adjustment to full lean.=C2=A0 The last=
 test session is cancelled, so want to see air a best guess on a needle to =
try - figure someone must have experience with this cam and SU=E2=80=99s. =
=C2=A011.3:1 compression=E2=80=A6.=C2=A0<br><br>Also, just put in a new HD =
condenser just in case it=E2=80=99s an ignition problem.</div><div><br></di=
v><div>Any ideas or thoughts?=C2=A0 Won=E2=80=99t be able to test the conde=
nser until qualifying tomorrow, but air file holding steady at 2500 rpm sho=
ws 11.5:1 which seems way rich; old cam would be lean under those condition=
s.</div><div><br></div><div><br></div><div>Thanks for any ideas!!</div><div=
><br></div><div>Dave Gott<br><br><div><a style=3D"font-size:12px" href=3D"h=
ttps://mail.onelink.me/107872968?pid=3Dnativeplacement&amp;c=3DGlobal_Acqui=
sition_YMktg_315_Internal_EmailSignature&amp;af_sub1=3DAcquisition&amp;af_s=
ub2=3DGlobal_YMktg&amp;af_sub3=3D&amp;af_sub4=3D100000604&amp;af_sub5=3DEma=
ilSignature__Static_" target=3D"_blank">Sent from Yahoo Mail for iPhone</a>=
<br></div></div>
</div>_______________________________________________<br>
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/a><br>
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