Cheap power increase

On our 2nd 300tdi in 6 years,de cat & non EGR .
Any sensible methods to add a few more bhp.
Recent belt change at 120k only 128k now,replace injectors would probably help?
Serviced every 6k.

Are TD5's real world faster, have driven two both seemed much smoother but not significantly quicker.Noticed the prices has reduced this year & may be tempted.

Official figures:
TD5 135bhp 98mph 0-60 14.2s
300tdi 111bhp 91mph 0-60 16.6s

Both the Td5's i test drove
1 had limited service records & the other the owner admited it had overheated in France towing a caravan...
I guess a well serviced TD5 with 100k would be a safer bet.

i loved my td5 but **** my self everytime i took it out theres wayyy to many electrics on them so i went back to my trusty old 200 tdi but theres only one thing i miss about the td5 and thats the sound

Ive had them all 200,300,td5,v8's and i can safely say that my current smoke makes me smile everytime i drive it the sound, the power is fantastic for a breeze bloke and thats my tdv6 manual,the sound takes me back to the days when i had capris and my sierra 4x4 2.8 v6.
Shes really good on fuel considering i floor it, 30mpg
I still run a 300tdi as a work / play thing.
The td5 was nice but fuel consumption was poor.
When i have some money i fancy having a remap done on the tdv6.i live with the electronic niggles,crappy epg squeels and non releasing tailgate.
Happy hunting for that extra power.

I have just had my ECU remapped on my Disco TD5, before the remap it was putting 71BHP to the wheels and after 101.2BHP so giving a nice 30% increase.
Flywheel stat's increased from 131BHP to 162BHP.

It makes a hell of a difference now with acceleration before I wouldn't dream of overtaking on B road's due to the slow take up speed, but now when you floor it power is straight there and your away.
cost me £300 including the rolling road tests which are required so you don't ask too much of the engine.

They told me unless I drive like an idiot fuel consumption should also be a lot better this is due to not having to accelerate as much to gain your required speed.
I can post the full before after stat's if anyone is interested.

I had my TD5 re-mapped about 2 months ago. It isn't a Ferrari (and never will be!) but the driveability is a lot better. The "get up and go" has improved (especially with the Sport button pressed on the auto gearbox) but the main improvement is when I'm towing the caravan - can now overtake with confidence! I've now been advised to also de egr it (will do next year) to get the full benefit. The re-map was £399 via Autologic - defo money well spent!

I fitted one of the better (but more pricey) power commanders and am very pleased with it. It has the advantage that, once set up/self-calibrated, it can be switched on or off from the dashboard...I only use it when I am towing with two horses in the trailer, a total of 2.5 tonnes and it makes a hell of a difference to the torque available from about 1500rpm up to about 2800rpm...without the trailer it really kicks the acceleration over that range but I am not interested in a TD5 Quattro so i don't have it on then.......unfortunately you can't flick it on when you want to overtake cos it has a 30 second period where it checks engine temperatures to prevent over-fuelling if the engine is stone cold...shame though

It is great on the motorways over here (France - lovely traffic free motorways) cos it makes the cruise control so much better (mine is an EX manual) and mpg is better than with it not on for a long steady run.

Benefits of de-erg are hit and miss, some people get a benefit, others say no difference, according to my mate who is an engineer there is no real reason why a properly functioning egr would take a noticeable amount of power from the wheels therefore the theory is that those that get a benefit had a problem with the erg in the first place, The message isn't don't do it but be warned it may not gain you anything.

Mogwyth said:

Benefits of de-erg are hit and miss, some people get a benefit, others say no difference, according to my mate who is an engineer there is no real reason why a properly functioning egr would take a noticeable amount of power from the wheels therefore the theory is that those that get a benefit had a problem with the erg in the first place, The message isn't don't do it but be warned it may not gain you anything.

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You are absolutely right in what you say; i used to design the combustion chambers in engines, gas turbines actually but the principles are all the same. There are many examples of engine combustion systems where using something less than pure, cold air produces more efficient combustion..and heavy fuel oil combustion is certainly one of them. The td5 with egr has been superbly engineered to get around what the layperson may intuitively think is a step back from the ideal combustion chemistry. However, it can't be designed to maintain that perfect combustion window over the full operating range...hence, yes, some people will see a genuine improvement...I am going to remove mine but only because I tow very heavy loads at speed AND i have a power commander, which takes the engine outside of the egr's design window under heavy engine load. If you use the td5 as your normal saloon car, as many do, you would need to have inherited the '****-gene' shared only by that plonker Clarkson to feel the difference

Hello

I'm having my EGR surgically removed when the bits come from Mr. E.Bay.
Nothing to do with performance benefits..... noticeable or otherwise. But I simply don't want the progressive build up of sludge,soot and carbon etc making it's way into the engine.
Besides, wasn't the EGR idea mainly to reduce exhaust pollutants to satisfy Californian legislation on the assumption that If it's good enough for CA the rest of the US would follow?
Tony.

teddykiller said:

I have just had my ECU remapped on my Disco TD5, before the remap it was putting 71BHP to the wheels and after 101.2BHP so giving a nice 30% increase.
Flywheel stat's increased from 131BHP to 162BHP.

It makes a hell of a difference now with acceleration before I wouldn't dream of overtaking on B road's due to the slow take up speed, but now when you floor it power is straight there and your away.
cost me £300 including the rolling road tests which are required so you don't ask too much of the engine.

They told me unless I drive like an idiot fuel consumption should also be a lot better this is due to not having to accelerate as much to gain your required speed.
I can post the full before after stat's if anyone is interested.

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Hi there TK, a power hike of 30bhp (at the wheels) is not a 30% increase it's just over 42% - 30/71 !!! So now wonder that you notice a difference in driveabilty.

The thing is that with a permanent all-wheel drive-train a large percentage of the std power output is used just to get over the frictional losses inherent in the drive-train - but you only need that once. After that any power increases you make, you will feel !!

I would be very interested to see your data.

Cheers
Dave

teddykiller said:

I have just had my ECU remapped on my Disco TD5, before the remap it was putting 71BHP to the wheels and after 101.2BHP so giving a nice 30% increase.
Flywheel stat's increased from 131BHP to 162BHP.

It makes a hell of a difference now with acceleration before I wouldn't dream of overtaking on B road's due to the slow take up speed, but now when you floor it power is straight there and your away.
cost me £300 including the rolling road tests which are required so you don't ask too much of the engine.

They told me unless I drive like an idiot fuel consumption should also be a lot better this is due to not having to accelerate as much to gain your required speed.
I can post the full before after stat's if anyone is interested.

Click to expand...

Hi, can I ask who did your re map and where the rolling road is?
Thanks,Will.

williamraff said:

Hi, can I ask who did your re map and where the rolling road is?
Thanks,Will.

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I'm interested in this too.
Thanks,
Phil