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Tommo



Member Since: 19 Dec 2013
Location: Leicestershire
Posts: 830

United Kingdom 2006 Defender 90 Td5 Black LE Java Black
hard acceleration
I have only had one defender and under hard acceleration it seems to bottle out and feel rough just before I change gear so are they all like this (unmodified ones)??
cheers Tommo
Post #548540 13th Jul 2016 7:24pm
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bm52



Member Since: 04 Apr 2010
Location: Kent
Posts: 2189

United Kingdom 2014 Defender 110 Puma 2.2 XS CSW Havana
I've only had 3 but I would say No.
Time for some diagnostics I'd say. But first check the obvious re dirty filters, weak or damaged turbo hoses,oil in ECU loom etc.
Post #548546 13th Jul 2016 7:35pm
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Tommo



Member Since: 19 Dec 2013
Location: Leicestershire
Posts: 830

United Kingdom 2006 Defender 90 Td5 Black LE Java Black
Thanks for reply bm52...filters (all) are changed every year with genuine filters!
No oil in loom last time I checked but have not looked at turbo hoses so will do that.
Post #548562 13th Jul 2016 8:03pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1766

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
Depends when you're changing gear, there's nothing to be gained by revving a stock td5 right to the limiter!
Post #548585 13th Jul 2016 9:18pm
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Grenadier



Member Since: 23 Jul 2014
Location: The foot of Mont Blanc...
Posts: 5859

France 2011 Defender 110 Puma 2.4 DCPU Corris Grey
^^^ I'm with Miker. Sounds like you're going too high up thr rev range and entering the point at which the power curve tapers. Td5s should be driven much like a local cab driver conserving fuel. i.e. shifting relatively quickly with the revs per gear kept nice a low. It's certainly no highly tuned, high revving 10,000rpm Ariel Atom engine the Td5. Thumbs Up Monsieur Le Grenadier

I've not been everywhere, but it's on my list.....

2011 Puma 110DC - Corris Grey
Post #548656 14th Jul 2016 8:44am
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Tommo



Member Since: 19 Dec 2013
Location: Leicestershire
Posts: 830

United Kingdom 2006 Defender 90 Td5 Black LE Java Black
Maybe I should back off a bit on the hard driving and acceleration Embarassed
Otherwise it drives well but I have had previous vehicles that didn't do this and had a smoother response.
Post #548801 14th Jul 2016 6:16pm
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bm52



Member Since: 04 Apr 2010
Location: Kent
Posts: 2189

United Kingdom 2014 Defender 110 Puma 2.2 XS CSW Havana
I misread.
As said....use the torque not the revs ☺
Post #548805 14th Jul 2016 6:24pm
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defender9



Member Since: 12 Mar 2016
Location: Fylde Coast
Posts: 1629

United Kingdom 2015 Defender 90 Puma 2.2 SW Keswick Green
if you want hard driving and acceleration, buy a Porsche Rolling with laughter
Post #548811 14th Jul 2016 6:49pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1766

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
Most people think that they still like to be wrung out a bit to keep them healthy, but the power tails off quite low. It's one of the reasons I want a rev counter on mine!
Post #548818 14th Jul 2016 7:28pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2879

United Kingdom 
I've got a rev counter on my TD5.
The engine will rev past 4,000 and is still smooth.
But there's not really any point. As already said it's not really that kind of vehicle.
Better to change gear at lower RPM. The torque peak is at under 2,000 rpm on the TD5.
I'll try it out today and see what the speeds are in gears at 4,000 rpm.
Post #548919 15th Jul 2016 7:27am
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Tommo



Member Since: 19 Dec 2013
Location: Leicestershire
Posts: 830

United Kingdom 2006 Defender 90 Td5 Black LE Java Black
I also get some vibration through the accelerator pedal when booting it Shocked
Post #549049 15th Jul 2016 8:27pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1766

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
The whole trick vibrates whether I'm booting it or not, it's a standard feature Laughing
Post #549050 15th Jul 2016 8:28pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2879

United Kingdom 
Mine was a lot smoother after l had the ECU reset by my local Land Rover dealer.
It cost £125 but was well worth it. They installed the last software update applicable to the TD5, probably issued in late 2006?
Before the ECU reset it was rough when revved up, with vibration through the gear lever. Although the actual performance was alright.
This procedure will also remove any remap, so if yours has one you would need to get it re-installed afterwards.
Post #549075 15th Jul 2016 11:30pm
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rustandoil



Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 755

England 2005 Defender 110 Td5 XS DCPU Bonatti Grey
4000 RPM!? Blimey ☺
Post #553108 2nd Aug 2016 1:46pm
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adseybear



Member Since: 08 Oct 2009
Location: Vancouver, Canada
Posts: 260

Canada 
Peak power on a td5 isn't until 4200rpm and rev limiter at 4800 rpm.

Certainly should rev smoothly and cleanly easily to 4k, td5's like to be revved to get the most out of them. It low down torque where they lack, in standard form anyway Wink 2003 Defender 90 Td5 CSW Belize Green - "Betty"
1958 Series IIA 109 Station Wagon - "Randolph" - Awaiting Restoration
2019 Jeep Wrangler JL Rubicon - SOLD
2006 Volvo V70 D5 - Ocean Race Edition, SOLD
2003 VW Passat Estate 1.9TDI - SOLD
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2001 Defender 90 Td5 Hard Top - SOLD
Post #553358 3rd Aug 2016 10:31am
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