 | Home > Puma (Tdci) > 2.4 Puma Performance |
 
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20382  
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When you mention the EGR...
Is it doing cleaning cycles on shutdown? |
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16th Dec 2014 6:25pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127 
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Yes, the "chugga chugga chugga sound" 80" 80" 86" 88" 90"
Wanted, Forward Control Anything considered. |
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16th Dec 2014 6:44pm |
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| Skeggy 90 Member Since: 07 Oct 2013 Location: Skeg Vegas Posts: 233  
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All standard Defenders are limited to 85 mph ish, if it goes faster than that it has definitely been played with.. 90 300 TDI SW (sold)
130 TD5 Utility (Foley SV) (sold) 110 TD5 Hardtop (sold) 110 TDCI Utility (sold) 1st Edition Range Rover Sport Supercharged Velar P380 HSE Discovery 1 V8 auto Puma 130 Double Cab (sold) R35 GTR Defender 110 300 TDI CSW (sold) 2010 110 XS Utility |
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16th Dec 2014 7:38pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127
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Ahhh didnt know that, it will do the wrong side of that without hesitation!!
I think that may answer my question, many thanks Ian 80" 80" 86" 88" 90" Wanted, Forward Control Anything considered. |
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16th Dec 2014 7:49pm |
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| Jonno Member Since: 06 Mar 2012 Location: Yorkshire Posts: 234 
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Interesting point about the dump valve sounds. As far as I know the Defender is a bit more sophisticated than to have one of those. I thought it had an electronically controlled variable geometry turbo, which reduces boost by adjusting its vane angle, or gas flow onto said vanes. If it's making dump valve sounds maybe it has been mapped and just has a ton of boost causing the sound effects. The turbo isn't really noticeable on my standard 2.4.
Jonno |
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16th Dec 2014 8:19pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127
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Thats whats been making me wonder!
As you said no dump valve on tdci.....but mine sounds just like one, the turbo really does whistle, when going through the gears and shutting off just sounds like a dump valve opening? all pipes are sound and in good condition, the engine is i good condition, and has been well looked after so i have no doubt its a mechanical fault with the turbo. Love the way it goes, previous owner was a lady, she said it seemed to go well too! 80" 80" 86" 88" 90" Wanted, Forward Control Anything considered. |
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16th Dec 2014 8:34pm |
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| Likeomg Member Since: 29 Jun 2012 Location: Lake District / Newcastle Posts: 2641 
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Does it sound like this?
http://www.defender2.net/forum/topic28411.html |
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16th Dec 2014 9:19pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127
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Yep, that's the one!!
Had a shock then, thought it was mine!!! Same colour. 80" 80" 86" 88" 90" Wanted, Forward Control Anything considered. |
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17th Dec 2014 7:00am |
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| DieselYoda Member Since: 09 Dec 2014 Location: Hunsruck Posts: 17 
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Hello,you have a Snap-On Modus.
Look in data-stream and tell me what the EGR Valve is doing during the driving range and what the fuel demand is when you do a full load accel. TDCi does not have a dump valve,what you are hearing is the turbo spooling down off it's curve. Regards DieselYoda |
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17th Dec 2014 12:16pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127
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Will do, it will have to be a weekend thing as i have not got the time to play in the evenings!!
What sort of readings should i be expecting with a standard tdci? Im a bit new to the Modus but will try and put the readings up on here when done Cheers Ian 80" 80" 86" 88" 90" Wanted, Forward Control Anything considered. |
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17th Dec 2014 6:16pm |
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| Regard Member Since: 08 Dec 2011 Location: RSA Posts: 251  
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Your turbo sound has got nothing to do with the remap.
That sound (as per video) is due to removal of the catalytic converter and the center cilencer box. Had this mod done on my previous 90 with the result being the exact sound as per this video. Makes me wonder if I should not do it again on the 110....... 
Ps...on your EGR readings: Remember that all these devices can only tell you what the ECU instructs the EGR to do. It can't actually tell you what the EGR is doing. Thus, if you have a blanked EGR which is still active, you will get normal EGR readings on your scanner. EGR readings are also dependant on Barometric Pressure, i.e. altitude above sea level. For instance, at the coast the EGR readings will be easily 40-70% open at most times (except during very hard acceleration) but at altitude (we live on the High Veld here in Pretoria/Johannesburg which is +_ 1700-1800m above sea level) we hardly ever see an open EGR at all with normal readings for us between 0-12% open on rare occasions but mosty 0%. So basicaly, if your readings are active, your EGR is not "shut off" by remap but you might still have a blanking plate. If your readings are 0% all the time then your EGR is disabled by remap. |
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18th Dec 2014 5:25am |
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| Roonstar Member Since: 18 May 2014 Location: Hampshire Posts: 59 
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I love the sound of that defender but not sure about the "turbo spooling down". If i remove the cat and center silencer box will the turbo make this noise? "Good advice is always certain to be ignored, but that's no reason not to give it." Agatha Christie
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19th Dec 2014 9:40pm |
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| Regard Member Since: 08 Dec 2011 Location: RSA Posts: 251
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100% yes.
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20th Dec 2014 4:29am |
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