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remove the piston chamber, turn the key-pump on. If fuel is pumping
through the jet then.. pressure too high, floats adjusted improperly,
needle and seat stuck open, etc..
I would say that 4.5psi is about tops for the Strombergs..better tan
SU's but not by much..
DP
On 11/16/2015 12:12 PM, Bud R wrote:
> What is the recommended and/or best fuel pressure for a Spitfire MK
> III with a single ZS carb? In checking it shows 4.5 -5 PSI on a gage.
> I try to keep it close to 2 PSI or less on my dual ZS equipped TR6 or
> it develops a cough at idle, so it makes me wonder if the fuel pump is
> overwhelming the float needles.
>
> With the Spit (this is the road Spit not the race car) it idles fine
> but the first attempt to accelerate it bogs down then catches then
> bogs some more and so on. I?m going to switch the distributor out and
> the coil to see if my fuel problem is actually an ignition problem?you
> know that old saying.
>
> Thanks
> Bud Rolofson
>
> Extreme Parts Racing (more than just a haircut)
>
> 71TR6 CC57365 (Good 6)
> 71 Spitfire MK IV Race Car #3
> 69 Spitfire MK III (back up FE engine/dinghy car)
> 93 Minnie Winnie Race Support Vehicle
> 77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> ** triumphs@autox.team.net **
>
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--
Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM
87107 505-352-1378 Go HERE: my world www.porterbikes.com/
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remove the piston chamber, turn the key-pump on. If fuel is pumping
through the jet then.. pressure too high, floats adjusted
improperly, needle and seat stuck open, etc..<br>
I would say that 4.5psi is about tops for the Strombergs..better
tan SU's but not by much..<br>
DP<br>
<br>
<div class="moz-cite-prefix">On 11/16/2015 12:12 PM, Bud R wrote:<br>
</div>
<blockquote
cite="mid:FF0EF50D-D74C-4617-82B5-1A3CBEB9E3E4@comcast.net"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
What is the recommended and/or best fuel pressure for a Spitfire
MK III with a single ZS carb? In checking it shows 4.5 -5 PSI on a
gage. I try to keep it close to 2 PSI or less on my dual ZS
equipped TR6 or it develops a cough at idle, so it makes me wonder
if the fuel pump is overwhelming the float needles.
<div><br>
</div>
<div>With the Spit (this is the road Spit not the race car) it
idles fine but the first attempt to accelerate it bogs down then
catches then bogs some more and so on. I?m going to switch the
distributor out and the coil to see if my fuel problem is
actually an ignition problem?you know that old saying.</div>
<div><br>
</div>
<div>Thanks</div>
<div>
<div apple-content-edited="true"><span class="Apple-style-span"
style="color: rgb(0, 0, 0); font-family: Helvetica;
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0px; -webkit-text-stroke-width: 0px; border-collapse:
separate; orphans: 2; widows: 2; border-spacing: 0px;
-webkit-text-decorations-in-effect: none;">
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2; -webkit-text-decorations-in-effect: none;">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space; -webkit-line-break:
after-white-space;"><span class="Apple-style-span"
style="orphans: 2; text-align: -webkit-auto;
text-indent: 0px; widows: 2;
-webkit-text-decorations-in-effect: none;">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space; -webkit-line-break:
after-white-space;"><span
class="Apple-style-span" style="orphans: 2;
text-align: -webkit-auto; text-indent: 0px;
widows: 2;
-webkit-text-decorations-in-effect: none;">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space;
-webkit-line-break: after-white-space;"><span
class="Apple-style-span" style="orphans:
2; text-align: -webkit-auto;
text-indent: 0px; widows: 2;
-webkit-text-decorations-in-effect:
none;">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space;
-webkit-line-break:
after-white-space;"><span
class="Apple-style-span"
style="orphans: 2; text-indent: 0px;
widows: 2;
-webkit-text-decorations-in-effect:
none;">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space;
-webkit-line-break:
after-white-space;"><span
class="Apple-style-span"
style="orphans: 2; text-indent:
0px; widows: 2;
-webkit-text-decorations-in-effect:
none;">
<div>
<div style="border-collapse:
separate; color: rgb(0, 0,
0); font-family: Helvetica;
font-style: normal;
font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;">Bud Rolofson</div>
<div style="border-collapse:
separate; color: rgb(0, 0,
0); font-family: Helvetica;
font-style: normal;
font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;"><br>
</div>
<div style="border-collapse:
separate; color: rgb(0, 0,
0); font-family: Helvetica;
font-style: normal;
font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;">Extreme Parts
Racing (more than just a
haircut)</div>
<div style="border-collapse:
separate; color: rgb(0, 0,
0); font-family: Helvetica;
font-style: normal;
font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;"><br>
</div>
<div>71TR6 CC57365 (Good 6)</div>
<div style="border-collapse:
separate; color: rgb(0, 0,
0); font-family: Helvetica;
font-style: normal;
font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;">71 Spitfire MK IV Race
Car #3</div>
<div style="border-collapse:
separate; color: rgb(0, 0,
0); font-family: Helvetica;
font-style: normal;
font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;">69 Spitfire MK III
(back up FE engine/dinghy
car)</div>
<div style="border-collapse:
separate; color: rgb(0, 0,
0); font-family: Helvetica;
font-style: normal;
font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;">93 Minnie Winnie Race
Support Vehicle </div>
<div style="border-collapse:
separate; color: rgb(0, 0,
0); font-family: Helvetica;
font-style: normal;
font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;">77 Z-50A Hardly
Davidson Honda Mini-Trail
Bike (Triumph Pit Bike)</div>
</div>
<div style="border-collapse:
separate; color: rgb(0, 0, 0);
font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;"><br>
</div>
<div style="border-collapse:
separate; color: rgb(0, 0, 0);
font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal;
text-transform: none;
white-space: normal;
word-spacing: 0px;
border-spacing: 0px;
-webkit-text-stroke-width:
0px;"><br>
</div>
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<pre wrap="">
** <a class="moz-txt-link-abbreviated"
href="mailto:triumphs@autox.team.net";>triumphs@autox.team.net</a> **
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</pre>
</blockquote>
<br>
<div class="moz-signature">-- <br>
Dave Porter
Porter Custom Bicycles
2909 Arno St. NE
Albuquerque, NM 87107
505-352-1378
Go HERE: my world <a class="moz-txt-link-abbreviated"
href="http://www.porterbikes.com/";>www.porterbikes.com/</a>
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