drdoom 445 Posted Monday at 16:18 Report Share Posted Monday at 16:18 Outstanding! Devil's in the details, so far as tuning is concerned. 2 Quote Link to post Share on other sites
Popular Post Lotusfab 3,312 Posted Monday at 16:33 Author Popular Post Report Share Posted Monday at 16:33 Still can’t believe what effect changing the choke size has had. My S1 has always drove extremely well and set the bar. I would say now the Turbo drives even better than the S1. Its a relief after so long to have perfected the acceleration. Your always scratching around in a no mans land with these changes. 3 Quote Link to post Share on other sites
LOTUSMAN33 1,522 Posted Monday at 19:20 Report Share Posted Monday at 19:20 Well done Fabian, many would have just accepted the stumble but as usual you persevere to get things just right. A turbo driving well is such a rewarding car to own as well. 👍🏻 Dave 1 Quote Do or do not, there is no try! Link to post Share on other sites
drdoom 445 Posted Monday at 19:34 Report Share Posted Monday at 19:34 2 hours ago, Lotusfab said: Still can’t believe what effect changing the choke size has had. My S1 has always drove extremely well and set the bar. I would say now the Turbo drives even better than the S1. Its a relief after so long to have perfected the acceleration. Your always scratching around in a no mans land with these changes. It's worth considering that your focused efforts in sorting the other carb settings are largely the means by which you've arrived at this most pleasant outcome. Be assured the slight reduction in choke size did nothing more than enrich the transition point which, though it may well have been helpful, is subordinate to the accurate balancing of float heights and throttles in terms of running behaviour. Cheers! 1 Quote Link to post Share on other sites
Lotusfab 3,312 Posted Monday at 19:56 Author Report Share Posted Monday at 19:56 Thanks Dave. Steve, Interesting point. The only changes made were float height and choke. When I tune these cars I always found on my S1 there is a position on the idle mixture screw that gives a big boost in power output. Its not very wide probably in the 1/4 turn range. On my turbo I have never been able to reproduce this effect to the same extent. I noticed this time when I tuned it I was able to locate the position and the effect was similar to the S1. Was this due to a change in float height? I don’t really know. All I can say is its now running perfectly. I would know for sure If I switched the chokes back and the stumble returned. Because of the work involved and the fact my car is now sorted I will not do this at this time. Maybe someone who has a stumble they can’t get rid of might try using 35 mm chokes and report the effect? Thanks for all the helpful advice and discussion it has really helped to sort my car! 2 Quote Link to post Share on other sites
LOTUSMAN33 1,522 Posted Monday at 20:16 Report Share Posted Monday at 20:16 @Paul Colemanwas saying he had a stumble on his S1. Quote Do or do not, there is no try! Link to post Share on other sites
Lotusfab 3,312 Posted Monday at 20:23 Author Report Share Posted Monday at 20:23 Oh yes I’ll tell him. Quote Link to post Share on other sites
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