Why would you want to rev the nuts off a diesel They're not designed for that. The TDV6 engine's peak torque band lies between 2200 and 2700 rpm. There's not a lot of point revving it beyond that. Sure, peak power (bhp) isn't reached until around 3200 rpm but it plummets after 3900rpm so there is definately no point in revving it beyond 3500.
I guess what I'm trying to say is that is doesn't need a red line because although the engine can probably be revved safely to 4000+, there is absolutely no point in doing it cos there's nothing there in terms of power.
My last car (also a diesel) didn't have a red line either.Now an ex-D3 owner after 7 happy years. Miss the car but not the big bills
8th Jun 2006 8:12 am
SN
Member Since: 03 Jan 2006
Location: Romiley
Posts: 13710
Albourneboy wrote:
The TDV6 engine's peak torque band lies between 2200 and 2700 rpm. There's not a lot of point revving it beyond that. Sure, peak power (bhp) isn't reached until around 3200 rpm
Thanks for that - I've never been quite sure where the purple patches areSteve N | 21MY Defender | 08MY Discovery 3 (history) | 06MY Discovery 3 (ancient history)
8th Jun 2006 8:41 am
DG Site Moderator
Member Since: 12 Dec 2005
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Re: RedLine
twizzle wrote:
what is the max rev limit?
Ooohh ..you'll know when...everthing will go quiet....you will see a stream of molten engine bits running towards the gutter accompanied by a little puff of smoke 21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
There is a rev limiter, AFAIR it comes in somewhere over 4000 rpmThe End
8th Jun 2006 8:53 am
DSL Keeper of the wheelie bin
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dickgriff wrote:
...........accompanied by a little puff of smoke
Saw that when a "white van man" in a Kangoo type van wanted to race my TD5 onto the M4. I just kept parallel with him up the slip road then he passed on the Mway. That was when he experienced a "little puff of smoke" and headed to the side! Boy was he upset! Couldn't resist a little wave!
Derek 8)
Last edited by DSL on 8th Jun 2006 8:57 am. Edited 2 times in total
8th Jun 2006 8:53 am
DSL Keeper of the wheelie bin
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Thanks for the response, it was the power band i was looking for,,, i have not revved it above 4k in normal driving.... although doing some late night private property offroading 7 up i did cane it a bit to get up a grass bank........
8th Jun 2006 11:48 am
Gareth Site Moderator
Member Since: 07 Dec 2004
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I am sure the D3 is electronically governed to a rev limit. Diesels of old had mechanical governers, and they could be adjusted to provide more revs,
Did you see the episode of Scrap Heap Challenge when one of the teams tried to tune up their lorry engine by unscrewing the governer? Well, the nut came off in his hand and the engine went into a runaway state, where it was revving its nuts off, and would not stop even with the fuel supply cut off! it was burning its own sump oil, and eventually blew up I think
8th Jun 2006 9:09 pm
DSL Keeper of the wheelie bin
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Don’t mess with the oily bits, even if you think you know what you are doing!
9th Jun 2006 6:40 am
simkna
Member Since: 21 Feb 2006
Location: Leicester
Posts: 806
Gareth wrote:
Did you see the episode of Scrap Heap Challenge when one of the teams tried to tune up their lorry engine by unscrewing the governer? Well, the nut came off in his hand and the engine went into a runaway state, where it was revving its nuts off, and would not stop even with the fuel supply cut off! it was burning its own sump oil, and eventually blew up I think
To be said with broad West Country Accent... "PROPER JOB!!"
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9th Jun 2006 9:22 am
Gareth Site Moderator
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Oooo Aaaaaarrr. "Oi caant read or write, but oi caan droive a twaaaaktor"
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They're not designed for that. The TDV6 engine's peak torque band lies between 2200 and 2700 rpm. There's not a lot of point revving it beyond that. Sure, peak power (bhp) isn't reached until around 3200 rpm but it plummets after 3900rpm so there is definately no point in revving it beyond 3500.
I just kept parallel with him up the slip road then he passed on the Mway. That was when he experienced a "little puff of smoke" and headed to the side! Boy was he upset! Couldn't resist a little wave! 
