R800NER Posted May 22, 2009 Posted May 22, 2009 I just had a P3 service, MOT and EBC ultimax discs/redpads all round (CS supplied) on my Zed. First thing I noticed upon starting up outside the garage, is that the idle seemed to be lower, then dropped a wee bit more, then a wee bit more and settle at like 400/500rpm. This seems awfully low? What's your idle rpm? Could a full oil change have changed this idle rpm? Car seems more rev free and sounds noticeably different, like meaner and throatier...which is a good thing of course! Will give it beans once the brakes are fully bedded in and report back. Quote
Stew Posted May 22, 2009 Posted May 22, 2009 Cold idle is around 1250 & warm is aroun 750/800 +1. Quote
jerry3167 Posted May 22, 2009 Posted May 22, 2009 If you had 10w 40 OIL and change to 0w or 5w OIL it might be slightly freer revving. Quote
R800NER Posted May 22, 2009 Author Posted May 22, 2009 It was emptied and filled with 5w 40 synthetic Silkolene. Could this be why it was sitting at a low idle? Am I safe to say, it won't do any harm? Quote
Trev-the-Rev Posted May 22, 2009 Posted May 22, 2009 It was emptied and filled with 5w 40 synthetic Silkolene. Could this be why it was sitting at a low idle? Am I safe to say, it won't do any harm? It shouldn't do any harm but is certainly a tad low. I use 5W 30 and mine idles at around 750 rpm when warm. Quote
jerry3167 Posted May 22, 2009 Posted May 22, 2009 I just did my own oil change to SILKOLENE PRO-S, and seems to idle smoothly and around 700Rpm Quote
Chris`I Posted May 22, 2009 Posted May 22, 2009 Seems a bit low to me. Do you have the aircon on? It can idle lower and rougher with air con switched off Quote
R800NER Posted May 22, 2009 Author Posted May 22, 2009 Seems a bit low to me. Do you have the aircon on? It can idle lower and rougher with air con switched off Good man, I had air con off and windows down (still just enjoying the sound of the engine with the popcharger), this could be why.. Quote
choptop Posted May 23, 2009 Posted May 23, 2009 When I start mine up goes up to 2000 rpm, them 1250 rpm and when warm ides around 750 rpm. Hope this helps. Quote
Cragus Posted May 23, 2009 Posted May 23, 2009 Me car idles warm at 500rpm also and i find it a little bit rough especially when pulling away. Use 5W 30 and use a pop charger. Rarely have the air con running. Asked irfan on the site when i met him and he says he idles the same. Anyway of making rev a little higher at idle Quote
Chris`I Posted May 23, 2009 Posted May 23, 2009 Me car idles warm at 500rpm also and i find it a little bit rough especially when pulling away. Use 5W 30 and use a pop charger. Rarely have the air con running. Asked irfan on the site when i met him and he says he idles the same. Anyway of making rev a little higher at idle Keep the air con on at all times The car can decide when it really needs running I beleive so it isnt really on all the time, but it does iron out the rough idle. That or I beleive Nissan might be able to change it with Consult. They will probably take your eyes out for it though Quote
Cragus Posted May 23, 2009 Posted May 23, 2009 How does the air con effect the idle anyway.....am i missing something with all the going on.lol Excuse me for being a dumbass. In addition my car is still under warranty so if it needed raised slighty to idle properly i would take nissan to town and get them to do it. grrr Quote
Chris`I Posted May 23, 2009 Posted May 23, 2009 How does the air con effect the idle anyway.....am i missing something with all the going on.lol Excuse me for being a dumbass. In addition my car is still under warranty so if it needed raised slighty to idle properly i would take nissan to town and get them to do it. grrr No nothing hiding in the wink, its just its widely known that turning off the aircon causes lower and lumpy idle. Try a search, you will see loads of places its mentioned. As for getting Nissan to raise it (if possible), they will try telling you there is nothing wrong with the low idle, so you will have to pay as its within specs Quote
Cragus Posted May 23, 2009 Posted May 23, 2009 I will try the air con and see how it goes .....lol Better not change my petrol consumption badly though....the best i can get is 19.2mpg without it on Quote
Chris`I Posted May 23, 2009 Posted May 23, 2009 Well I've just been out and tested mine. With AC on, it sits steady at just above 750RPM. With AC off, its a lot lumpier and idles at about 600RPM, maybe a touch lower Quote
Cragus Posted May 23, 2009 Posted May 23, 2009 Going out for a run just now Chris because i need to heat the baby up before testing the oil. If it works I will be most pleased. I will let you know how i get on. As for testing the oil...man its a pain in the a$$ Quote
Cragus Posted May 23, 2009 Posted May 23, 2009 10 minutes later and yup Chris, air con on and it revs at a much smoother 800ish rpm. Quote
scottsoulby Posted May 23, 2009 Posted May 23, 2009 heres where mine idles, this was after fitting a kintetix plenum, a/c off Quote
Cragus Posted May 23, 2009 Posted May 23, 2009 Tried it with the air con on scott or are you happy with its current rev level. If you think it is a bit rough try it with the air con on......i just have and finding it much smoother (thanks to Chris for pointing it out). Quote
fatalus Posted May 23, 2009 Posted May 23, 2009 After the plenum spacer mine idles lower at around 550-600 rpm. No roughness and no problems at all though.. Quote
nixy Posted May 23, 2009 Posted May 23, 2009 mine is the same, quite low but not rough, and picks up with aircon on (but god knows why..........) Quote
R800NER Posted May 23, 2009 Author Posted May 23, 2009 Me car idles warm at 500rpm also and i find it a little bit rough especially when pulling away. Use 5W 30 and use a pop charger. Rarely have the air con running. Asked irfan on the site when i met him and he says he idles the same. Anyway of making rev a little higher at idle I am running a popcharger and the 5w 40 oil, turns out that AC off idles a bit rougher, turned it on and voila. Off topic - since having my brakes fitted and bedding them in, at low speed there is a slight clicking noise when parking up/turning, is this normal and will it go away? I don't think it's a clicky transmission, because it didn't do it before... Quote
srobrien Posted May 23, 2009 Posted May 23, 2009 I took off my throttle body and gave it a good clean out. After I had done it the idle was a lot more stable and went from around 700rpm to 1000rpm, plus acceleration was alot smoother. R Quote
Mathys Posted May 29, 2009 Posted May 29, 2009 Well I've just been out and tested mine. With AC on, it sits steady at just above 750RPM. With AC off, its a lot lumpier and idles at about 600RPM, maybe a touch lower Exactly the same here... Quote
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