Volvo RWD 444-544 Forum

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SU Advice 444-544 1965

uid 35621's pic
posted by  Suppo176 on  Thu Apr 2 14:18 CST 2009
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last visit: Mon Jan 13 13:39 CST 2014
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As there must be literally hundreds of you who have already done so, I would like to get some expert advice on just what I will need to do with my SU HS6 Carbs after I bolt them back on my engine which is undergoing the B18 to B20 transformation.

Anything specific like changes in jetting and needle adjustment would be of great value so I don't have to do this in the dark. If it matters, I am also putting in a D grind cam as I attempt to obtain 95 HP (or more) out of this red block monster!








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    SU Advice 444-544 1965

    uid 5098's pic
    posted by  Sil on  Fri Apr 3 02:43 CST 2009
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    last visit: Fri Oct 24 07:24 CST 2014
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    In addition to George's advice, you might want to check out these two articles:

    http://www.vclassics.com/archive/sucarbs.htm and http://www.vclassics.com/archive/stoichio.htm for starters.

    Tons of good information about SUs has been posted on the BB over the years. I just tried to retrieve some of it, but the Search function seems to be on the fritz again,or at least, it's responding as if it hasn't ever heard of SUs before.

    If you Google "SU Carburetors", more than you'll ever want to know about SUs will pop up.

    Edited: I just tried that second link I gave, and it comes up empty. Try http://www.vclassics.com/archive.
    --
    "62 PV544 (B20, M41), "71 142E, "93 240 Classic Wagon.








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    SU Advice 444-544 1965

    posted by  walrus3 on  Thu Apr 2 16:01 CST 2009
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    last visit: Mon Dec 2 14:20 CST 2013
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    The standard adjustment has worked OK for me. The appropriate needles for later models would probably be better (KN or DX). Most important is that the carbs be in good shape, NO worn throttle shafts, etc.
    --
    George Downs, Bartlesville, Heart of the USA!







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