bankz5152 wrote:

Chicken Drumstick wrote:

tbh, tuning hasn't really changed at all. It is still the same things that work and that don't work. And the Td5 is no mystery box running on pixie dust. It works the same as any other diesel engine out there.

I also don't think the advice as ever been "just map it".

All the normal things that help any engine out work exactly the same on the Td5. More air in and more air out, with the right amount of fuel = more power.

Colder air is more dense, so a bigger intercooler can make a big difference. A free flow exhaust will help lower egt's and get the gases out of the engine faster. While more efficient intake setups allow more air in.

A custom rolling road map will nearly always produce the best results. As it can be tailored to your mods and vehicle.

Sorry but yes it has. Dramatically.

A not that long ago 300hp was laughable and unheard of, now it's attainable and reliable.

It used done by injector duration. Now it's done via afr and smoke map.

Td5 tuning has changed, the likes of Dynachip flash and dash have fallen away and true bespoke tuning has taking hold. No one TD5 is the same as another, especially now given their age.

Just adding a bigger intercooler without adjusting the mapping won't do much, exhausts do make a difference but generally only noticeable on the higher end.


Most diesels will smoke a bit when changing gear etc.. because they are off boost. Lower air flow, more smoke. However a properly mapped this can be reduced and depending on circumstances almost totally removed.

Chat to Gareth at Empire and you will get exactly what you want. I would always suggest a bigger intercooler from Britpart (shockingly actually fairly good if not running high boost), Serck, Allisport, Darkside (I have a darkside in mine which is holding with 2.5bar for the last year)

Just because more people are doing things now doesn't mean it is new

Tuning is tuning, people have been doing it for over 100 years.....

But like all things, bounds get pushed and people like to beat other people. Hence the fact that high numbers are reached. But the essence behind it all hasn't really changed all that much.

Basic tuning, which is what 90% of people go for is likely almost the same now as it was a decade ago.

Mo Murphy wrote:

Even with a stage 1 tune it shouldn't smoke. So you either have poor tune or a restriction in your inlet set up.
Neither will be particularly good for your engine.
Mo

110Matty wrote:

Thanks for the reply.

I feared I might have to travel further afield to get a rolling road one done I guess, but i can't imagine everyone out there has done it that way, nor fitted different intercoolers and exhausts. Are modest stage 1 flash maps not really up to it in your opinion then? The one I already have is ok, but as i said, i don't like the smoke when i pull away and hoped it could be avoided.

The 'Just Map It' isn't "advice" it's a new hardware / software offering from Empire Tuning (flash connector / cable + custom remap - without requiring a Nanocom), just one of many options. I was hoping for positive feedback from these type of offerings I guess.

I know you get what you pay for and shouldn't shy away from a bit of effort and time, but there doesn't seem to be anything local to me, so will probably have to go out of county.

Maybe my question should have been much simpler - do all stage 1 remaps come with black smoke, whether remote flash or rolling road?

Cheers.

Chicken Drumstick wrote:

Mo Murphy wrote:

Even with a stage 1 tune it shouldn't smoke. So you either have poor tune or a restriction in your inlet set up.
Neither will be particularly good for your engine.
Mo

It should smoke a bit, nature of tuning diesels.

Also depends what was changed and why. More fuel (at least to some extent) will help off boost performance, which might be desirable, but will generate boost. And using a stock turbo you will have limitations of the stock boost threshold.

Chicken Drumstick wrote:

... It should smoke a bit, nature of tuning diesels. ...

Mo Murphy wrote:

Chicken Drumstick wrote:

Mo Murphy wrote:

Even with a stage 1 tune it shouldn't smoke. So you either have poor tune or a restriction in your inlet set up.
Neither will be particularly good for your engine.
Mo

It should smoke a bit, nature of tuning diesels.

Also depends what was changed and why. More fuel (at least to some extent) will help off boost performance, which might be desirable, but will generate boost. And using a stock turbo you will have limitations of the stock boost threshold.

M57, stage one 250bhp, standard turbo, 2.5" exhaust, no smoke. 😉
Mo

blackwolf wrote:

Chicken Drumstick wrote:

... It should smoke a bit, nature of tuning diesels. ...

Surely not, although many do.

Smoke indicates that more fuel is being injected than can be fully burned with the available oxygen, and that extra fuel is not generating power, it is just being wasted and only partially burned. A good remap will be clean and avoid exceeding the maximum fuel load for the available oxygen.

My BAS map doesn't smoke, and even the relatively unsophisticated "tuning box" I have on my Disco2 doesn't smoke.

Just as with a steam railway locomotive, with a diesel engine all that smoke indicates is that fuel is being wasted.