chris aka fonz Posted December 10, 2005 Share Posted December 10, 2005 I bought one a while back , do you guys use them ? I have since read that idleing your turbo's is bad for them and therefore tubby timers are a waste of time . Do you concur Quote Link to comment Share on other sites More sharing options...
Clarkey Posted December 10, 2005 Share Posted December 10, 2005 Hmmm ... I've always let my car idle before switching off. Giving the oil time to cool. I've got a Blitz and it's set to 2 minutes. That might be overkill .. just playing safe. Have you not been leaving idle time before switching the engine off ? Quote Link to comment Share on other sites More sharing options...
markrzs Posted December 10, 2005 Share Posted December 10, 2005 I have'nt fitted my timer yet, but I always leave to idle for a minute or so. Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted December 10, 2005 Share Posted December 10, 2005 i have a timer as part of my clifford, but just leave it to idle 30 seconds to a minute..depending how hard you drove in the last 5 minutes. Quote Link to comment Share on other sites More sharing options...
Scoboblio Posted December 10, 2005 Share Posted December 10, 2005 It's vitally important to cool the car down after driving it hard, as far as I know "idling" the turbos does absolutely no damage whatsoever because they're not even producing boost. Not letting the oil cool down before stopping it circulating is a receipe for disaster. Quote Link to comment Share on other sites More sharing options...
paul mac Posted December 10, 2005 Share Posted December 10, 2005 i have a turbo timer but since fitting an oil temp gauge and reading tuning books the best and really only way to cool your engine after a thrash is to cruise along sedately with air moving through the engine it is quite surprising how long the engine oil temp takes to come down, sometimes up to 20 minutes, IMHO a static car sat idling for 2 minutes on a timer is a total waste of time, if you dont believe me buy an oil temp gauge they're much more usefull Quote Link to comment Share on other sites More sharing options...
tobyg Posted December 10, 2005 Share Posted December 10, 2005 My UK says somewhere between 1 and 3 minutes. I think it's over 54 mph, warrants a full cooldown. along with up hill driving, pulling caravans, trailers etc. Quote Link to comment Share on other sites More sharing options...
chris aka fonz Posted December 10, 2005 Author Share Posted December 10, 2005 Hmmm ... I've always let my car idle before switching off. Giving the oil time to cool. I've got a Blitz and it's set to 2 minutes. That might be overkill .. just playing safe. Have you not been leaving idle time before switching the engine off ? Always leave it running mate as i thought you were supposed too however if you read JohnA site http://www.max-boost.co.uk/max-boost/ it has conflicting advice about it ! Some good info on there , well worth a read . Quote Link to comment Share on other sites More sharing options...
Ian R Posted December 10, 2005 Share Posted December 10, 2005 I use mine HKS it records driving style and RPM and switches the engine off Automatically. Sometimes 15 seconds up to around 5 mins Quote Link to comment Share on other sites More sharing options...
chris aka fonz Posted December 10, 2005 Author Share Posted December 10, 2005 I use mine HKS it records driving style and RPM and switches the engine off Automatically. Sometimes 15 seconds up to around 5 mins I have that one too ! Quote Link to comment Share on other sites More sharing options...
JohnA Posted December 11, 2005 Share Posted December 11, 2005 If you're boosting hard on the motorway and turn left for the services, then YES, if you do it very quickly you risk switching off before the vital cooling-off period. But in what other real case will you be tempted to switch off immediately right after a high-boost run? Won't you have to plod along a parking lot, residential area, etc? That would be more than 30 seconds of low-load operation, probably more than 1 minute as well. Don't forget that the water jacket in the turbos is there for this exact reason, to stop the bearing from getting too hot. Even with the water pump stopped, the heat-absorbing capacity of the coolant is *very* high before it bubbles up and vaporises. Even then, it's main function is to stop the *oil* from carbonising around the bearing --- which a good synthetic won't do if kept below 140C. If you've swapped for an air-cooled single then you might do with some more idling, especially if you don't change the synthetic often. You can't get any worse than an aircooled bike engine running an aircooled turbo on high boost (non-intercooled), and if you don't need a turbo timer there, why would you need anywhere else? Quote Link to comment Share on other sites More sharing options...
zap Posted December 11, 2005 Share Posted December 11, 2005 I was under the impression that the idea of idling was to keep the oil pump running whilst the turbo's spooled down to prevent oil starvation to the bearings. Quote Link to comment Share on other sites More sharing options...
JohnA Posted December 11, 2005 Share Posted December 11, 2005 not really, a turbo typically spools down to idle from full boost in a second or thereabouts. These 10-minute 'cooling' idling periods that people go through can do more harm than good. A guy here recently had his timer go nuts and it kept idling the car for many hours Quote Link to comment Share on other sites More sharing options...
hadyn Posted December 11, 2005 Share Posted December 11, 2005 I dont use a turbo timer, but I let my car idle for 1-3 mins depending on how hard its been driven. Quote Link to comment Share on other sites More sharing options...
JohnA Posted December 11, 2005 Share Posted December 11, 2005 fair enough, I do the same after hard runs, although I prefer driving off-boost, that shifts air through the rads and is better for the engine. I know of a guy who was obsessively idling his MitsiGTO for 5-10mins after reversing it out of the garage. *That* is wrong and definately not neccessary Quote Link to comment Share on other sites More sharing options...
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