eric Posted December 5, 2020 Share Posted December 5, 2020 The crown went , fortunately without damage . It need to be welded but also to be balanced with the new AP clutch. New billet flywheel seems to be too light for a road use ( 3.2 to 4 kg ) but between 4 kg and 7 kg of the O/E flywheel , there is may be a better choice ?Who knows ? Link to comment Share on other sites More sharing options...
7SW Posted December 5, 2020 Share Posted December 5, 2020 Hello, I did the swap last year; from the standard flywheel to a light weighted one. I went from 6.94Kg to 3.10Kg.After swap, at the beginning, on road, the engine did stall very often at cross lights or little stops in towns. I did resolve this by increasing the engine idle speed to 1000 rpm by using the fantastic tool made by Revilla.Since, I have no trouble; acceleration are very fast and idle speed is stable. Link to comment Share on other sites More sharing options...
revilla Posted December 5, 2020 Share Posted December 5, 2020 Just spotted my name there! Good to hear that the tool is proving useful and that people are actually doing things with it. Link to comment Share on other sites More sharing options...
eric Posted December 5, 2020 Author Share Posted December 5, 2020 Which tool ? Link to comment Share on other sites More sharing options...
revilla Posted December 5, 2020 Share Posted December 5, 2020 This one: https://www.lotus7.club/forum/techtalk/remapping-rover-mems3-ecu Link to comment Share on other sites More sharing options...
21jigsaw Posted December 5, 2020 Share Posted December 5, 2020 Lightweight flywheel an improvement in drivability on a seven. The original R65 flywheel was developed for the Metro at around 950 kgs.. Increases engine braking and engine acceleration which compliments the lighter weight of the seven.What do you mean by 'the crown went' Link to comment Share on other sites More sharing options...
StevehS3 Posted December 6, 2020 Share Posted December 6, 2020 How does a lighter flywheel improve drivability? I didn't know that flywheel weight was linked to car weight. Isn't it's purpose is to smooth out the firing stokes of engine? Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted December 6, 2020 Leadership Team Share Posted December 6, 2020 Steve, try to imagine an extremely heavy flywheel and how it would then deaden the ability for the engine to accelerate or decelerate, it's the same effect but obviously on a reduced scale. The heavier flywheel aids smoothness but deadens the change in speed, removing that weight has the opposite effect. It's rather like trying to walk in lead boots, walking's fine but don't expect to break out into a run too quickly!Stu. Link to comment Share on other sites More sharing options...
7SW Posted December 6, 2020 Share Posted December 6, 2020 Hi Revilla,Yes I did use it for discovering the MEMs features but no time for now to go deeper.I did send you several maps issuing from continental ECUs. Link to comment Share on other sites More sharing options...
eric Posted December 6, 2020 Author Share Posted December 6, 2020 The crown which around the flywheel was not welded ... so it moved . It can make a disaster . But in my case, no damage, just obliged to go out the engine . Now it is welded .Perfect tool, but far more complicated for me, I am afraid . Only for EU3 , not for EU2 I think .Great Job however . Link to comment Share on other sites More sharing options...
ECR Posted December 6, 2020 Share Posted December 6, 2020 Ahh, the ring gear ...Although crown describes it well Link to comment Share on other sites More sharing options...
21jigsaw Posted December 6, 2020 Share Posted December 6, 2020 The crown you mention I think is the starter motor ring gear which is shrunk onto the flywheel, if you have welded in place you will need to rebalance the flywheel. Link to comment Share on other sites More sharing options...
eric Posted December 7, 2020 Author Share Posted December 7, 2020 It is the ring gear . 3 welded 1 cm every 120° . Agree with you for the balance but my mecanic doesn't want .... Link to comment Share on other sites More sharing options...
garybee Posted December 7, 2020 Share Posted December 7, 2020 It's you that has to be happy, not the mechanic. He won't be the one that loses his legs when the flywheel exits the bell housing. Link to comment Share on other sites More sharing options...
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