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yes, to be honest even the three HD8s on the Jag E-type is overkill.
smaller throats should actually give you better torque off the line.
On Tue, Dec 3, 2019 at 2:56 PM i erbs <eyera3000@gmail.com> wrote:
> My 100-6 has a MKI engine .060 over, Issky perfomance cam and it has a
> balanced engine. I bought a tri carb setup, traded it for a pair of HD8s
> and built a cable throttle system. Im very happy with it, other than hot
> idle issues. I get around 23 mpg on the road and its more responsive. Bu=
t
> I hsve to say three carbs look great under the bonnet. As others have ssi=
d,
> without hotting up the engine, no need to go bigger cfm.
>
> Ira Erbs
> Portland,OR
> 1959 Austin Healey BN4
> 1967 MGB
>
> On Mon, Dec 2, 2019, 8:02 PM John Spaur <jmsdarch@sbcglobal.net> wrote:
>
>> It=E2=80=99s not that I want too. Burlen S.U has not shown HS4=E2=80=99s=
as being
>> available on their website for over a year now but the HS6=E2=80=99s are=
. I had
>> emailed them several times but they don=E2=80=99t respond to emails. I f=
inally got
>> around to calling them and they said they had the parts and could build =
a
>> set. So, I placed an order.
>>
>>
>>
>> John
>>
>>
>>
>> *From:* Healeys [mailto:healeys-bounces@autox.team.net] *On Behalf Of *M=
ichael
>> Salter
>> *Sent:* Monday, December 2, 2019 7:35 AM
>> *To:* Bob Spidell <bspidell@comcast.net>
>> *Cc:* healeys@autox.team.net
>> *Subject:* Re: [Healeys] Converting from HS4 to HS6 carbs
>>
>>
>>
>> I can confirm that converting my first 6 cylinder race car, with a
>> standard MkII engine, to HS6 carbs without any other mods improved my la=
p
>> times at our home circuit by absolutely 0.00 seconds ... seriously
>> disappointing =F0=9F=98=95=F0=9F=98=95
>>
>>
>>
>> On Mon, Dec 2, 2019, 9:50 AM Bob Spidell, <bspidell@comcast.net> wrote:
>>
>> John, have to ask why you'd want to do this. I'm not Edd China--or even
>> Ant Anstead--but from all I've seen and heard just adding greater air fl=
ow
>> capacity, without other mods--cam, headers, etc.--does more harm than
>> good.
>>
>> I think I read somewhere that Geoff Healey thought BJ8s were
>> 'over-carburetted' (maybe why headers supposedly add a few HP without ot=
her
>> mods).
>>
>> Bob
>>
>> On 12/2/2019 5:52 AM, warthodson--- via Healeys wrote:
>>
>> You will need H6 intake manifolds or machine out your HS4 manifolds. I a=
m
>> not sure about the linkage.
>> Gary Hodson
>>
>> -----Original Message-----
>> From: John Spaur <jmsdarch@sbcglobal.net> <jmsdarch@sbcglobal.net>
>> To: healeys <healeys@autox.team.net> <healeys@autox.team.net>
>> Sent: Mon, Dec 2, 2019 12:17 am
>> Subject: [Healeys] Converting from HS4 to HS6 carbs
>>
>> If I change from triple HS4 to triple HS6 carbs can I just swap them out
>> or do I have to change the linkage and other components?
>>
>>
>>
>> John Spaur
>>
>> =E2=80=9962 BT7
>>
>>
>>
>>
>>
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>> Support Team.Net http://www.team.net/donate.html
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>>
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>>
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>> Support Team.Net http://www.team.net/donate.html
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>>
>> Archive: http://www.team.net/pipermail/healeys
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>>
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<div dir=3D"ltr">yes, to be honest even the three HD8s on the Jag E-type is=
overkill.=C2=A0 smaller throats should actually give you better torque off=
the line.</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gm=
ail_attr">On Tue, Dec 3, 2019 at 2:56 PM i erbs <<a href=3D"mailto:eyera=
3000@gmail.com">eyera3000@gmail.com</a>> wrote:<br></div><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div dir=3D"auto">My 100-6 has a MKI eng=
ine .060 over, Issky perfomance cam and it has a balanced engine. I bought =
a tri carb setup, traded it for a pair of HD8s and built a cable throttle s=
ystem. Im very happy with it, other than hot idle issues.=C2=A0 I get aroun=
d 23 mpg on the road and its more responsive. But I hsve to say three carbs=
look great under the bonnet. As others have ssid, without hotting up the e=
ngine, no need to go bigger cfm.<br><br><div>Ira Erbs<br>Portland,OR<br>195=
9 Austin Healey BN4<br>1967 MGB</div></div><br><div class=3D"gmail_quote"><=
div dir=3D"ltr" class=3D"gmail_attr">On Mon, Dec 2, 2019, 8:02 PM John Spau=
r <<a href=3D"mailto:jmsdarch@sbcglobal.net"; target=3D"_blank">jmsdarch@=
sbcglobal.net</a>> wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);paddi=
ng-left:1ex"><div lang=3D"EN-US"><div><p class=3D"MsoNormal"><span style=3D=
"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">It=E2=
=80=99s not that I want too. Burlen S.U has not shown HS4=E2=80=99s as bein=
g available on their website for over a year now but the HS6=E2=80=99s are.=
I had emailed them several times but they don=E2=80=99t respond to emails.=
I finally got around to calling them and they said they had the parts and =
could build a set. So, I placed an order.<u></u><u></u></span></p><p class=
=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:Calibri,sans-serif=
;color:rgb(31,73,125)"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal=
"><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31=
,73,125)">John<u></u><u></u></span></p><p class=3D"MsoNormal"><span style=
=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u>=
</u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><b><span style=3D"font-s=
ize:11pt;font-family:Calibri,sans-serif">From:</span></b><span style=3D"fon=
t-size:11pt;font-family:Calibri,sans-serif"> Healeys [mailto:<a href=3D"mai=
lto:healeys-bounces@autox.team.net" rel=3D"noreferrer" target=3D"_blank">he=
aleys-bounces@autox.team.net</a>] <b>On Behalf Of </b>Michael Salter<br><b>=
Sent:</b> Monday, December 2, 2019 7:35 AM<br><b>To:</b> Bob Spidell <<a=
href=3D"mailto:bspidell@comcast.net"; rel=3D"noreferrer" target=3D"_blank">=
bspidell@comcast.net</a>><br><b>Cc:</b> <a href=3D"mailto:healeys@autox.=
team.net" rel=3D"noreferrer" target=3D"_blank">healeys@autox.team.net</a><b=
r><b>Subject:</b> Re: [Healeys] Converting from HS4 to HS6 carbs<u></u><u><=
/u></span></p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><div><p class=
=3D"MsoNormal">I can confirm that converting my first 6 cylinder race car, =
with a standard MkII engine, to HS6 carbs without any other mods improved m=
y lap times at our home circuit by absolutely 0.00 seconds ... seriously di=
sappointing <span style=3D"font-family:"Segoe UI Symbol",sans-ser=
if">=F0=9F=98=95=F0=9F=98=95</span><u></u><u></u></p></div><p class=3D"MsoN=
ormal"><u></u>=C2=A0<u></u></p><div><div><p class=3D"MsoNormal">On Mon, Dec=
2, 2019, 9:50 AM Bob Spidell, <<a href=3D"mailto:bspidell@comcast.net"; =
rel=3D"noreferrer" target=3D"_blank">bspidell@comcast.net</a>> wrote:<u>=
</u><u></u></p></div><blockquote style=3D"border-top:none;border-right:none=
;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in =
0in 6pt;margin-left:4.8pt;margin-right:0in"><div><p class=3D"MsoNormal" sty=
le=3D"margin-bottom:12pt">John, have to ask why you'd want to do this.=
=C2=A0 I'm not Edd China--or even Ant Anstead--but from all I've se=
en and heard just adding greater air flow capacity, without other mods--cam=
, headers, etc.--does more harm than good.=C2=A0 <br><br>I think I read som=
ewhere that Geoff Healey thought BJ8s were 'over-carburetted' (mayb=
e why headers supposedly add a few HP without other mods).<br><br>Bob<u></u=
><u></u></p><div><p class=3D"MsoNormal">On 12/2/2019 5:52 AM, warthodson---=
via Healeys wrote:<u></u><u></u></p></div><blockquote style=3D"margin-top:=
5pt;margin-bottom:5pt"><div><p class=3D"MsoNormal" style=3D"margin-bottom:1=
2pt"><span style=3D"font-size:10pt;font-family:Arial,sans-serif;color:black=
">You will need H6 intake manifolds or machine out your HS4 manifolds. I am=
not sure about the linkage.<br>Gary Hodson<u></u><u></u></span></p><div><p=
class=3D"MsoNormal" style=3D"margin-bottom:12pt"><span style=3D"font-size:=
10pt;font-family:Arial,sans-serif;color:black">-----Original Message-----<b=
r>From: John Spaur <a href=3D"mailto:jmsdarch@sbcglobal.net"; rel=3D"norefer=
rer" target=3D"_blank"><jmsdarch@sbcglobal.net></a><br>To: healeys <a=
href=3D"mailto:healeys@autox.team.net"; rel=3D"noreferrer" target=3D"_blank=
"><healeys@autox.team.net></a><br>Sent: Mon, Dec 2, 2019 12:17 am<br>=
Subject: [Healeys] Converting from HS4 to HS6 carbs<u></u><u></u></span></p=
><div id=3D"gmail-m_-2554122461585218985m_7805435651444928657m_722182895763=
5531067yiv6571067118"><div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:10pt;font-family:Arial,sans-serif;color:black">If I change from t=
riple HS4 to triple HS6 carbs can I just swap them out or do I have to chan=
ge the linkage and other components?<u></u><u></u></span></p></div><div><p =
class=3D"MsoNormal"><span style=3D"font-size:10pt;font-family:Arial,sans-se=
rif;color:black">=C2=A0<u></u><u></u></span></p></div><div><p class=3D"MsoN=
ormal"><span style=3D"font-size:10pt;font-family:Arial,sans-serif;color:bla=
ck">John Spaur<u></u><u></u></span></p></div><div><p class=3D"MsoNormal"><s=
pan style=3D"font-size:10pt;font-family:Arial,sans-serif;color:black">=E2=
=80=9962 BT7<u></u><u></u></span></p></div></div></div></div><p class=3D"Ms=
oNormal"><span style=3D"font-size:10pt;font-family:Arial,sans-serif;color:b=
lack"><u></u>=C2=A0<u></u></span></p></div></div></blockquote><p class=3D"M=
soNormal"><u></u>=C2=A0<u></u></p></div><p class=3D"MsoNormal" style=3D"mar=
gin-bottom:12pt">_______________________________________________<br>Support=
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