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Re: [Fot] SU HS6 problems during hard braking

To: Greg Blake <gblake58tr3@icloud.com>
Subject: Re: [Fot] SU HS6 problems during hard braking
From: Jason Sukey via Fot <fot@autox.team.net>
Date: Sat, 13 Jul 2019 21:37:05 -0400
Cc: FOT list <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <CAMmo4o_ERiy=fkYqUx=c7qZndV2dc6-q9cukqnOp9n1uGoTnKQ@mail.gmail.com> <F986C422-2B1C-41E2-A190-0E97172513B4@aol.com> <CAMmo4o-c+p51ddgyS_Hn0exuk6-qcEQAs5UCjLJxX9E6T_V-mQ@mail.gmail.com> <523AF9E3-FE0B-4778-B875-6D1C1F0D400B@icloud.com>
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The floats pivot so the swing front to back.   On the rear carb the pivot
pin is nearest the firewall, on the front carb the pivot pin is nearest the
radiator.

Thanks,
Jason

On Sat, Jul 13, 2019, 9:29 PM Greg Blake <gblake58tr3@icloud.com> wrote:

> What is the orientation of the pivot on the floats?
>
> Sent from my iPhone
>
> On Jul 13, 2019, at 8:17 PM, Jason Sukey via Fot <fot@autox.team.net>
> wrote:
>
> Phil, I'm running 2 psi.  My fuel pressure gauge stays consistent during
> the entire run.
>
> Thanks,
> Jason
>
> On Sat, Jul 13, 2019, 9:15 PM Phil Gott <vfracing@aol.com> wrote:
>
>> Jason;
>> What sort of Fuel pressure are you running? Should be 1 1/2 to 3 psi,
>> although a Spitfire driver and I run 6 with no apparent ill effect. More
>> than that could be causing you some of this problem.
>> Phil Gott
>>
>> Sent from my iPhone
>>
>> > On Jul 13, 2019, at 8:57 PM, Jason Sukey via Fot <fot@autox.team.net>
>> wrote:
>> >
>> > Hello FOT,
>> >      Running my GT6 at the PVGP historics this weekend.  I've sorted
>> the braking system and installed new tires since the last time out.  Now
>> that I'm actually able to brake hard, I'm suffering from what seems to be
>> fuel flooding, possible sloshing in the float bowls and dumping out the jet
>> into the intake...
>> >
>> > During and immediately after a hard braking zone, the engine goes
>> completely "off" and I can smell raw fuel.  After a few seconds it clears
>> out and runs strong in all other conditions, no indication of over rich or
>> starving for fuel. Starts normally, no issues idling.
>> >
>> > Original fuel level in the floats was about 1/8" below the top of the
>> jet.  By reducing the fuel level in the bowls from there, the problem has
>> somewhat improved, but it's still significant.  Every session I adjust them
>> a little further, but I'm not sure this is the right fix...maybe a band aid.
>> >
>> > Has anyone experienced this with the HS carbs?
>> >
>> > Jason Sukey
>> >
>> >
>> > _______________________________________________
>> > fot@autox.team.net
>> >
>> > http://www.fot-racing.com
>> >
>> > Donate: http://www.team.net/donate.html
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>> > Unsubscribe/Manage:
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>> >
>> >
>>
>> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
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>

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Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">The floats pivot so the swing front to back.=C2=A0 =C2=A0=
On the rear carb the pivot pin is nearest the firewall, on the front carb t=
he pivot pin is nearest the radiator.<div dir=3D"auto"><br></div><div dir=
=3D"auto">Thanks,</div><div dir=3D"auto">Jason</div></div><br><div class=3D=
"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Jul 13, 2019, 9=
:29 PM Greg Blake &lt;<a href=3D"mailto:gblake58tr3@icloud.com";>gblake58tr3=
@icloud.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=
=3D"auto">What is the orientation of the pivot on the floats? =C2=A0<br><br=
><div id=3D"m_-3378539813793621208AppleMailSignature" dir=3D"ltr">Sent from=
 my iPhone</div><div dir=3D"ltr"><br>On Jul 13, 2019, at 8:17 PM, Jason Suk=
ey via Fot &lt;<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=
=3D"noreferrer">fot@autox.team.net</a>&gt; wrote:<br><br></div><blockquote =
type=3D"cite"><div dir=3D"ltr"><div dir=3D"auto">Phil, I&#39;m running 2 ps=
i.=C2=A0 My fuel pressure gauge stays consistent during the entire run.<div=
 dir=3D"auto"><br></div><div dir=3D"auto">Thanks,</div><div dir=3D"auto">Ja=
son</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gma=
il_attr">On Sat, Jul 13, 2019, 9:15 PM Phil Gott &lt;<a href=3D"mailto:vfra=
cing@aol.com" target=3D"_blank" rel=3D"noreferrer">vfracing@aol.com</a>&gt;=
 wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex">Jason;<br>
What sort of Fuel pressure are you running? Should be 1 1/2 to 3 psi, altho=
ugh a Spitfire driver and I run 6 with no apparent ill effect. More than th=
at could be causing you some of this problem.<br>
Phil Gott<br>
<br>
Sent from my iPhone<br>
<br>
&gt; On Jul 13, 2019, at 8:57 PM, Jason Sukey via Fot &lt;<a href=3D"mailto=
:fot@autox.team.net" rel=3D"noreferrer noreferrer" target=3D"_blank">fot@au=
tox.team.net</a>&gt; wrote:<br>
&gt; <br>
&gt; Hello FOT,<br>
&gt;=C2=A0 =C2=A0 =C2=A0 Running my GT6 at the PVGP historics this weekend.=
=C2=A0 I&#39;ve sorted the braking system and installed new tires since the=
 last time out.=C2=A0 Now that I&#39;m actually able to brake hard, I&#39;m=
 suffering from what seems to be fuel flooding, possible sloshing in the fl=
oat bowls and dumping out the jet into the intake...<br>
&gt; <br>
&gt; During and immediately after a hard braking zone, the engine goes comp=
letely &quot;off&quot; and I can smell raw fuel.=C2=A0 After a few seconds =
it clears out and runs strong in all other conditions, no indication of ove=
r rich or starving for fuel. Starts normally, no issues idling.<br>
&gt; <br>
&gt; Original fuel level in the floats was about 1/8&quot; below the top of=
 the jet.=C2=A0 By reducing the fuel level in the bowls from there, the pro=
blem has somewhat improved, but it&#39;s still significant.=C2=A0 Every ses=
sion I adjust them a little further, but I&#39;m not sure this is the right=
 fix...maybe a band aid.<br>
&gt; <br>
&gt; Has anyone experienced this with the HS carbs?=C2=A0 <br>
&gt; <br>
&gt; Jason Sukey<br>
&gt; <br>
&gt; <br>
&gt; _______________________________________________<br>
&gt; <a href=3D"mailto:fot@autox.team.net"; rel=3D"noreferrer noreferrer" ta=
rget=3D"_blank">fot@autox.team.net</a><br>
&gt; <br>
&gt; <a href=3D"http://www.fot-racing.com"; rel=3D"noreferrer noreferrer nor=
eferrer" target=3D"_blank">http://www.fot-racing.com</a><br>
&gt; <br>
&gt; Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"noreferrer =
noreferrer noreferrer" target=3D"_blank">http://www.team.net/donate.html</a=
><br>
&gt; Archive: <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer n=
oreferrer noreferrer" target=3D"_blank">http://autox.team.net/archive</a> <=
a href=3D"http://www.team.net/pipermail/fot"; rel=3D"noreferrer noreferrer n=
oreferrer" target=3D"_blank">http://www.team.net/pipermail/fot</a><br>
&gt; Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman/options/f=
ot/vfracing@aol.com" rel=3D"noreferrer noreferrer noreferrer" target=3D"_bl=
ank">http://autox.team.net/mailman/options/fot/vfracing@aol.com</a><br>
&gt; <br>
&gt; <br>
<br>
</blockquote></div>
</div></blockquote><blockquote type=3D"cite"><div dir=3D"ltr"><span>_______=
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