Mrdeli Posted April 4, 2012 Share Posted April 4, 2012 Hi there, I tend to pretty much change up at around 4000rpm, even when I'm pushing on. The odd time I've revved out to around 6000rpm I've noticed that the engine gets a little harsh sounding - defo nothing to worry me about, but I was just interested to hear whether this is the character of the engine or are there any tips to improve this? My car is running 10w40 oil - is a different oil likely to make any difference? My car is 2005 with 79k. As I say it's not a big concern, but sometimes I compare it to my brothers 135i which is sliky smooth at all revs. Thanks mark. Quote Link to comment Share on other sites More sharing options...
adam1942 Posted April 4, 2012 Share Posted April 4, 2012 I assume your using 97ron + petrol? using 95 causes the knock sensor to be disabled after 5000(I think) rpm... Quote Link to comment Share on other sites More sharing options...
Neilp Posted April 4, 2012 Share Posted April 4, 2012 +1 on what fuel you are running? Mines is smooth to the rev limiter Quote Link to comment Share on other sites More sharing options...
Mrdeli Posted April 4, 2012 Author Share Posted April 4, 2012 I'm on tesco 99 so that's not it. Thanks though Quote Link to comment Share on other sites More sharing options...
Bakes100 Posted April 4, 2012 Share Posted April 4, 2012 I know what you mean. mine is the same. not awful just not what I would expect from a modern six cylinder engine. Quote Link to comment Share on other sites More sharing options...
Neilp Posted April 4, 2012 Share Posted April 4, 2012 Have you done any mods to your car? Exhausts, decats, filters etc? Quote Link to comment Share on other sites More sharing options...
Mrdeli Posted April 4, 2012 Author Share Posted April 4, 2012 No, all standard. Quote Link to comment Share on other sites More sharing options...
Neilp Posted April 4, 2012 Share Posted April 4, 2012 Hmm may just be the sound of your car. Mines gets its balls booted and always seems smooth. Is it possible to take a video inside the car while driving to allow people to hear the engine? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 4, 2012 Share Posted April 4, 2012 I think its a case of what your used to, i find mine a little harsh after 5,000 RPM, especially in comparison with my old Supra, but i am pretty sure thats the nature of the VQ35DE, seen it commented on so may times, apparently the HR is way smoother. Quote Link to comment Share on other sites More sharing options...
Dblock Posted April 4, 2012 Share Posted April 4, 2012 No, all standard. I personally find the 350 feels strained until it had an exhaust on it. I dont think it is strained but it sounds it. Quote Link to comment Share on other sites More sharing options...
Mrdeli Posted April 4, 2012 Author Share Posted April 4, 2012 I think its a case of what your used to, i find mine a little harsh after 5,000 RPM, especially in comparison with my old Supra, but i am pretty sure thats the nature of the VQ35DE, seen it commented on so may times, apparently the HR is way smoother. Yes on looking round it seems most pre 2006 are the same Better get used to It I guess!! Quote Link to comment Share on other sites More sharing options...
KyleR Posted April 5, 2012 Share Posted April 5, 2012 Not exactly sure I understand what you mean by "harsh". I just had my OEM exhaust fixed as I bought it with the flange to the back box broken and didn't know It used to sound great, now it sounds like a normal commuter, until I hit the 5000+ marker and I get 10% of that V6 growl back again. Quote Link to comment Share on other sites More sharing options...
Mrdeli Posted April 5, 2012 Author Share Posted April 5, 2012 By harsh I mean it feels like it would rather I changed up earlier rather than chasing the red line. It seems this was ironed out in the rev up facelift from what I read. Just thought I'd check there wasn't an easy 'fix' Quote Link to comment Share on other sites More sharing options...
Mrdeli Posted April 5, 2012 Author Share Posted April 5, 2012 Ps. I might try to get to the chirk meet so perhaps may be able to compare other cars there as I've never been in another 350 before. Quote Link to comment Share on other sites More sharing options...
Neilp Posted April 5, 2012 Share Posted April 5, 2012 By harsh I mean it feels like it would rather I changed up earlier rather than chasing the red line. It seems this was ironed out in the rev up facelift from what I read. Just thought I'd check there wasn't an easy 'fix' Ah that may be why mines feels smoother. I have a 2006 revup car Quote Link to comment Share on other sites More sharing options...
lrh Posted April 5, 2012 Share Posted April 5, 2012 I know what you mean. mine is the same. not awful just not what I would expect from a modern six cylinder engine. The pre-2006 DE engine dates back to 1994 and was never intended for high-revving sports cars... Torque drops like a stone above 5.5k rpm. Later engines are better but they can't hide the original design/purpose. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 5, 2012 Share Posted April 5, 2012 I know what you mean. mine is the same. not awful just not what I would expect from a modern six cylinder engine. The pre-2006 DE engine dates back to 1994 and was never intended for high-revving sports cars... Torque drops like a stone above 5.5k rpm. Later engines are better but they can't hide the original design/purpose. Actually the VQ35DE only dates back to 2000, but the basic design is carried on from the VQ20DE from 1994, but there are quite a few refinements, however thats no excuse, but your right most V motors are not designed for high RPM. Quote Link to comment Share on other sites More sharing options...
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