[Healeys] Converting from HS4 to HS6 carbs

[i erbs]

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. But
I hsve to say three carbs look great under the bonnet. As others have ssid,
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 at sbcglobal.net> wrote:

> It’s not that I want too. Burlen S.U has not shown HS4’s as being
> available on their website for over a year now but the HS6’s are. I had
> emailed them several times but they don’t 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.
>
>
>
> John
>
>
>
> *From:* Healeys [mailto:healeys-bounces at autox.team.net] *On Behalf Of *Michael
> Salter
> *Sent:* Monday, December 2, 2019 7:35 AM
> *To:* Bob Spidell <bspidell at comcast.net>
> *Cc:* healeys at 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 lap
> times at our home circuit by absolutely 0.00 seconds ... seriously
> disappointing 😕😕
>
>
>
> On Mon, Dec 2, 2019, 9:50 AM Bob Spidell, <bspidell at 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 flow
> 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 other
> 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 am
> not sure about the linkage.
> Gary Hodson
>
> -----Original Message-----
> From: John Spaur <jmsdarch at sbcglobal.net> <jmsdarch at sbcglobal.net>
> To: healeys <healeys at autox.team.net> <healeys at 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
>
> ’62 BT7
>
>
>
>
>
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