D2a Td5 stock performance - am I expecting too much

**ozscott** · 25th October 2018, 04:47 PM

Originally Posted by DutchyDownUnder

I had a similar problem with my 2003 Td5 and it turned out a couple of studs on the exhaust manifold had broken, causing the manifold to warp and exhaust gases to escape rather than spooling the turbo. My local Landy expert removed studs and threaded new ones in, and now she's like new again! I can usually out accelerate other vehicles at the traffic lights, so the one you drove perhaps suffered the same problem.

What other vehicles? The td5 takes 23 seconds to hit 100kph...

Cheers

**ozscott** · 25th October 2018, 04:50 PM

10-11 seconds for a 4.6 V8 and only slightly more for the 4.0.

Cheers

**shack** · 25th October 2018, 05:46 PM

Originally Posted by ozscott

What other vehicles? The td5 takes 23 seconds to hit 100kph...

Cheers

It should be quicker than that

Land Rover - Discovery II - 2.5 TDi (136 Hp) - Technical specifications, Fuel economy (consumption)

Although I'm yet to see a stock one that is a quick as that says

**discorevy** · 25th October 2018, 09:31 PM

Originally Posted by ozscott

What other vehicles? The td5 takes 23 seconds to hit 100kph...

Cheers

while towing a V8 D2 to the fuel station after it ran out....again ( yes I know you're fishing

)

Originally Posted by ozscott

10-11 seconds for a 4.6 V8 and only slightly more for the 4.0.

Cheers

10.3 for my td5 with 32's , but 0-100 times are not the primary reason for modification ,although fun ...... a more beneficial and relevant reason is 80 - 120 times ( 6.8 seconds )

**rapserv** · 26th October 2018, 12:56 AM

one relatively simple thing to check is the small black rubber hose coming from a small hosetail on the metal pipe section between turbo out and the intercooler (hidden below power steering pump) and is connected to the wastegate controller. It's hard to see normally but just slide your hand down the metal section and you will feel it. The rubber tends to perish over time and then splits causing the wastegate controller to not work correctly and as a consequence there is a lack of performance. Simply replace with new length of rubber hose and performance is restored.
Not saying that this is your problem though. Anyone with a TD5 ... this is worth checking.

**RobMichelle** · 26th October 2018, 02:00 PM

Taken on board thanks Dave

D2a Td5 stock performance - am I expecting too much

Wash · 30th October 2018, 05:23 PM

Okay, I bought a 95 Disco AUTO with 300TDi motor many moons back when I was planning on doing a fairly extensive outback trip. Had wanted a manual diesel but oh so hard to acquire and ended up with the auto. 11 years of driving it I rarely regretted having an auto as this was my daily drive as well and so much time spent in slow moving traffic. I digress a bit.

First serious bit of 4wd was finding a campsite off the Strzelecki Track at Strzelecki Crossing. First time in low range, gutless as a blowfly in a gale. And then it picked up and did its job extremely well.

It wasn't until several months later during a 4wd Training Course that I learnt to use my left foot on the brake while revving the vehicle before take-off during "stall-starts" on hills.

After a few attempts at Trials where the Disco stopped and so ended my "run" through the gates, I listened to someone mentioning the acceleration lag affecting the autos during Trials.

I tried the next run not taking my foot off the accelerator, only using the brake to adjust my speed (sometimes very low in low-range) but found I had no acceleration lag when I took my foot off the brake. I later experimented with this technique on the road at traffic lights and found that there was no lag.

Just something to consider. If not, how about getting the injectors done and maybe getting it re-chipped.

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