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I=E2=80=99m pretty sure they were triple HD8s based on Thelma Seigel=E2=80=
=99s red early 3000 race car. It was a step up from the Ken Rudd triple HD6=
setup and a notch below triple webers. Question is, how much tuning is too=
much for street use? And how long will even a built Healey six last at 600=
0 revs, remembering that this is a four main bearing engine and=C2=A0much o=
f its robustness was based on relatively low (5250) revs? High revs and a w=
ild cam=C2=A0make their power at those higher revs, of course. Kind of thin=
k the BJ8 tune plus a tad extra for perhaps 165 hp at no more than 5500 mig=
ht be tops for reliable street use, but it all depends=C2=A0on preferred us=
e (and budget!).=C2=A0Just a thought =E2=80=A6
Sent from the all new AOL app for iOS
On Monday, January 5, 2026, 10:24 AM, simon.lachlan--- via Healeys <healeys=
@autox.team.net> wrote:
#yiv5512221677 P {margin-top:0;margin-bottom:0;}
The current HD6s and the Webers which I tried for a while.Simon
From:=C2=A0Healeys <healeys-bounces@autox.team.net> on behalf of Harold Man=
ifold <manifold@telus.net>
Sent:=C2=A0Sunday, January 04, 2026 23:30
To:=C2=A0David Wirken <dmw@wirkenphoto.com>
Cc:=C2=A0Healeys <Healeys@autox.team.net>
Subject:=C2=A0Re: [Healeys] Carburators on 1960's Era Rally Cars=20
Thanks David. I am interested in the triple=C2=A0SU engines. Does Robson bo=
ok say if the carbs HD6 or HD8? Does anyone=C2=A0have a picture of the 1960=
triple SU engine?
Harold
On Sun, Jan 4, 2026 at 12:17=E2=80=AFPM David Wirken <dmw@wirkenphoto.com> =
wrote:
In Reading the book "Works Rally Cars by Graham Robson , it is noted " Trip=
le-SU engines producing about 170bhp were fitted from 1960, then aluminium =
cylinder=C2=A0heads and triple Weber carburettors ( with a peak output of a=
bout 210bhp) followed in 1962
On Sun, Jan 4, 2026 at 1:35=E2=80=AFPM richard mayor via Healeys <healeys@a=
utox.team.net> wrote:
Ken Rudd made go fast parts and sold them under the name Rudd Speed.=C2=A0 =
They were not used on factory (works) cars.=C2=A0 Rudd speed manifolds were=
for SU carbs.=C2=A0 Works rally cars used Webers.
Richard Mayorboyracer466@gmail.com
On Jan 4, 2026, at 10:33=E2=80=AFAM, Harold Manifold <manifold@telus.net> w=
rote:
Hello,
I am considering updating the carburetor setup on my MkI BT7 to match the c=
onfiguration used on the factory rally cars. I have seen photos of the Rudd=
Speed triple HD6 arrangement and was wondering if this is the setup the ra=
lly cars utilized.
Any information or photos you could provide would be greatly appreciated. M=
y goal is to ensure the setup remains period-correct.
Thanks,Harold_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archiv=
e/healeys
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
66@gmail.com
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archiv=
e/healeys
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
nphoto.com
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archiv=
e/healeys
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
h@aol.com
------=_Part_7307761_543387232.1767643510047
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<html xmlns=3D"http://www.w3.org/1999/xhtml"; xmlns:v=3D"urn:schemas-microso=
ft-com:vml" xmlns:o=3D"urn:schemas-microsoft-com:office:office"><head><!--[=
if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>=
96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><bo=
dy>
I=E2=80=99m pretty sure they were triple HD8s based on Thelma Seigel=E2=80=
=99s red early 3000 race car. It was a step up from the Ken Rudd triple HD6=
setup and a notch below triple webers. Question is, how much tuning is too=
much for street use? And how long will even a built Healey six last at 600=
0 revs, remembering that this is a four main bearing engine and much o=
f its robustness was based on relatively low (5250) revs? High revs and a w=
ild cam make their power at those higher revs, of course. Kind of thin=
k the BJ8 tune plus a tad extra for perhaps 165 hp at no more than 5500 mig=
ht be tops for reliable street use, but it all depends on preferred us=
e (and budget!). Just a thought =E2=80=A6<br><br><br><div class=3D"yah=
oo-signature"><a style=3D"font-size:12px" href=3D"https://aolapp.onelink.me=
/eG2g?pid=3DNativePlacement&c=3DUS_Acquisition_YMktg_320_EmailSignature=
_AttributionDL&af_sub1=3DAcquisition&af_sub2=3DUS_YMktg&af_sub3=
=3D&af_sub4=3D100002473&af_sub5=3DSentFromNewAOLApp__Interstitial_&=
amp;af_ios_store_cpp=3Dce85ce34-ad0f-4811-a92b-a172743b064e&af_android_=
url=3Dhttps%3A%2F%2Fplay.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.aol=
.mobile.aolapp%26listing%3Demail_signature_attribution">Sent from the all n=
ew AOL app for iOS</a><br></div><br><p class=3D"yahoo-quoted-begin" style=
=3D"font-size: 15px; color: rgb(132, 115, 255); padding-top: 15px; margin-t=
op: 0px;">On Monday, January 5, 2026, 10:24 AM, simon.lachlan--- via Healey=
s <healeys@autox.team.net> wrote:</p><blockquote class=3D"iosymail"><=
div id=3D"yiv5512221677">
=20
<style type=3D"text/css">#yiv5512221677 P {margin-top:0;margin-bottom:0;}</=
style>
<div dir=3D"ltr">
<div style=3D"font-family:Aptos, Calibri, Helvetica, sans-serif;font-size:1=
2pt;color:rgb(0, 0, 0);">
<br>
</div>
<div id=3D"yiv5512221677appendonsend"></div>
<div style=3D"font-family:Aptos, Calibri, Helvetica, sans-serif;font-size:1=
2pt;color:rgb(0, 0, 0);" class=3D"yiv5512221677elementToProof">
The current HD6s and the Webers which I tried for a while.</div>
<div style=3D"font-family:Aptos, Calibri, Helvetica, sans-serif;font-size:1=
2pt;color:rgb(0, 0, 0);" class=3D"yiv5512221677elementToProof">
Simon</div>
<div style=3D"font-family:Calibri, Arial, Helvetica, sans-serif;font-size:1=
2pt;color:rgb(0, 0, 0);">
<br>
</div>
<hr style=3D"display:inline-block;width:98%;">
<div style=3D"font-family:Calibri, Arial, Helvetica, sans-serif;font-size:1=
2pt;color:rgb(0, 0, 0);">
<b>From:</b> Healeys <healeys-bounces@autox.team.net> on behalf =
of Harold Manifold <manifold@telus.net><br>
<b>Sent:</b> Sunday, January 04, 2026 23:30<br>
<b>To:</b> David Wirken <dmw@wirkenphoto.com><br>
<b>Cc:</b> Healeys <Healeys@autox.team.net><br>
<b>Subject:</b> Re: [Healeys] Carburators on 1960's Era Rally Cars </d=
iv>
<div style=3D"font-family:Calibri, Arial, Helvetica, sans-serif;font-size:1=
2pt;color:rgb(0, 0, 0);">
<br>
</div>
<div style=3D"direction:ltr;">Thanks David. I am interested in the triple&n=
bsp;SU engines. Does Robson book say if the carbs HD6 or HD8? Does anyone&n=
bsp;have a picture of the 1960 triple SU engine?</div>
<div style=3D"direction:ltr;"><br>
</div>
<div style=3D"direction:ltr;">Harold</div>
<div><br>
</div>
<div style=3D"direction:ltr;">On Sun, Jan 4, 2026 at 12:17=E2=80=AFPM David=
Wirken <<a rel=3D"nofollow noopener noreferrer" id=3D"yiv5512221677OWA8=
de38ca1-5022-3487-6cb8-6d2cffa2f435" ymailto=3D"mailto:dmw@wirkenphoto.com"=
target=3D"_blank" href=3D"mailto:dmw@wirkenphoto.com"; class=3D"yiv55122216=
77OWAAutoLink">dmw@wirkenphoto.com</a>> wrote:</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left:=
1px solid rgb(204, 204, 204);">
<div style=3D"direction:ltr;">In Reading the book "Works Rally Cars by Grah=
am Robson , it is noted " Triple-SU engines producing about 170bhp were fit=
ted from 1960, then aluminium cylinder heads and triple Weber carburet=
tors ( with a peak output of about 210bhp)
followed in 1962</div>
<div><br>
</div>
<div style=3D"direction:ltr;">On Sun, Jan 4, 2026 at 1:35=E2=80=AFPM richar=
d mayor via Healeys <<a rel=3D"nofollow noopener noreferrer" id=3D"yiv55=
12221677OWAc21ee316-66cb-9e8b-2c67-f9a70c183540" ymailto=3D"mailto:healeys@=
autox.team.net" target=3D"_blank" href=3D"mailto:healeys@autox.team.net"; cl=
ass=3D"yiv5512221677OWAAutoLink">healeys@autox.team.net</a>> wrote:</div=
>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left:=
1px solid rgb(204, 204, 204);">
<div>Ken Rudd made go fast parts and sold them under the name Rudd Speed.&n=
bsp; They were not used on factory (works) cars. Rudd speed manifolds=
were for SU carbs. Works rally cars used Webers.</div>
<div><br>
</div>
<div>Richard Mayor</div>
<div><a rel=3D"nofollow noopener noreferrer" id=3D"yiv5512221677OWAb9c9d828=
-ec73-b8e5-1431-5f0e235d03a5" ymailto=3D"mailto:boyracer466@gmail.com"; targ=
et=3D"_blank" href=3D"mailto:boyracer466@gmail.com"; class=3D"yiv5512221677O=
WAAutoLink">boyracer466@gmail.com</a></div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<blockquote>
<div>On Jan 4, 2026, at 10:33=E2=80=AFAM, Harold Manifold <<a rel=3D"nof=
ollow noopener noreferrer" id=3D"yiv5512221677OWA72d3ef47-5321-e3d6-ecbc-c0=
121c30e9af" ymailto=3D"mailto:manifold@telus.net"; target=3D"_blank" href=3D=
"mailto:manifold@telus.net"; class=3D"yiv5512221677OWAAutoLink">manifold@tel=
us.net</a>> wrote:</div>
<div><br>
</div>
<div style=3D"direction:ltr;">Hello,</div>
<div style=3D"direction:ltr;"><br>
</div>
<div style=3D"direction:ltr;">I am considering updating the carburetor setu=
p on my MkI BT7 to match the configuration used on the factory rally cars. =
I have seen photos of the Rudd Speed triple HD6 arrangement and was wonderi=
ng if this is the setup the rally
cars utilized.</div>
<div style=3D"direction:ltr;"><br>
</div>
<div style=3D"direction:ltr;">Any information or photos you could provide w=
ould be greatly appreciated. My goal is to ensure the setup remains period-=
correct.</div>
<div style=3D"direction:ltr;"><br>
</div>
<div style=3D"direction:ltr;">Thanks,</div>
<div style=3D"direction:ltr;">Harold</div>
<div>_______________________________________________<br>
7OWAaa6701fc-b5f2-e53b-8241-66d0295525d9" target=3D"_blank" href=3D"http://=
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