marki Posted December 22, 2023 Report Share Posted December 22, 2023 Hi All. For those of you with SU’s are you using a vacuum advance ? cheers Mark. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted December 22, 2023 Report Share Posted December 22, 2023 If you have the original USA spec distributor then the vacuum unit on it is a retard unit, not advance. If a converted PI then the vacuum advance may help with fuel economy when cruising. Quote Link to post Share on other sites
Andy Moltu Posted December 22, 2023 Report Share Posted December 22, 2023 The PI cars didn’t have a vacuum advance. Presumably the lack if an enrichment on sudden throttle opening didn’t work well with high levels of advance. Quote Link to post Share on other sites
Stephen H Posted December 22, 2023 Report Share Posted December 22, 2023 (edited) Hi, I have SUs and do have vacuum advance fitted. The distributor doctor added a vacuum advanced module for me when he rebuilt my distributor. It seems to work well. Edited December 22, 2023 by Stephen H Quote Link to post Share on other sites
marki Posted December 22, 2023 Author Report Share Posted December 22, 2023 Thanks guys Quote Link to post Share on other sites
DRD Posted December 22, 2023 Report Share Posted December 22, 2023 I have the vacuum advance unit from a company in the US, it works well. Quote Link to post Share on other sites
harlequin Posted December 22, 2023 Report Share Posted December 22, 2023 I run a vacuum advance module along with Strombergs, It works well giving good economy especially for long runs George Quote Link to post Share on other sites
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