Thread: TD5 EGT, How high does yours get!!!!!!

My Tdi never see's those numbers,it's never under 450 on the highway and usually 500 or above. Pat

Originally Posted by stig0000

DPF thats why they dont smoke??

and how much smoke do i see,, well alot cos i see it every day for a job uv never been behind a freelander 2 td4 then,, they pump out the smoke, same as the 4.4 tdv8,, my td5 smoke a lil bit,, me mums FL2 smokes, and me old mans d3 smokes, so dose every other desiel land rover iv worked on,, same as toyotas, nissans, transet,,, and my god,, u should see the smoke come out of a 3L GU

The particulate filter is to trap fine particulates, smoke and particulates are not the same thing.

The 4.4 tdv8 has only been out a few months, I haven't yet seen one. I've not seen any L322 rangerover with black smoke. I've seen two with blue.

As vehicles get older poor maintenance takes over and anything can smoke. Usually due to air supply problems (blocked filters, clogged intercoolers, turbos losing boost) But no diesel produces visible black smoke when new or running as it should.

I have three diesels here, two nissans and one Isuzu powered rover. The Isuzu is running very hot on the EGT (can show 900C) and still only smokes at altitude, the two nissans have never put out any black smoke.

Originally Posted by Dougal

As vehicles get older poor maintenance takes over and anything can smoke. Usually due to air supply problems (blocked filters, clogged intercoolers, turbos losing boost) But no diesel produces visible black smoke when new or running as it should.

Except chipped ones apparently.
I am chasing a (black)smoking issue on my D2 Td5 manual and i am only running a stage 1 Td5Alive tune.
Every change-mod-maintnance i make helps for a while,then smoke is back ,i guess i 'll have to live with it or go back stock map again
So far i
removed the egr
cleaned the intercooler
new intercooler hoses
new maf
carefull re-adjusting boost after every change
regulary checking that wastegate isn't stuck
experimented with mantec snorkel Mantec v Safari Snorkel
Next mod-pricey so not viable yet- fitment of a bigger intercooler and raising the boost up a little more(maybe and a booster box if needed-but retaining stage 1 tune) in order to give the motor some extra air to breathe,based on the theory is that black smoke is overfuel so i'll have to push more air also but correct me if i got this wrong,difficult times for throwing money ,so what's your suggestions?

Do these maps aim for a set air/fuel ratio? If they do then even if you can give it more air, it'll just give more fuel (there will be a limit somewhere). Within that more advanced can cause black smoke even if the air/fuel ratios aren't excessively rich.

Have you asked TD5alive?

Originally Posted by Dougal

Do these maps aim for a set air/fuel ratio? If they do then even if you can give it more air, it'll just give more fuel
Have you asked TD5alive?

Do you happen to know if this a part of the Td5 ECU strategy even with the original map or maps generaly are based around the air/fuel ratio parameter?
Rave isn't very specific on this.
Time to get a decent book for diesels,i guess..
Thanks.

No it isn't...

So everything is up to the tuner-man.
On my occasion,black smoke occurs on specific revs and/or throtle positions,so it can be fixed if it was a "generic" problem,it would generaly be a smokey disco..
I know the topic started for EGT's,i've read that too much fuel=too much smoke=too HOT AND DANGEROUS.. so i got worried..
I prefer to invest to a madman with sensors for boost pressure,egt's,cooling temps etc,cause nanocom reads form current sensors,i'd like a second opinion on readings , than to invest to a bigger intercooler that might be an overkill expence for a stage 1 tune with normal boost pressure,what everyone else thinks?
Thanks.

Originally Posted by Benny_IIA

I think your EGT temp prob could be there.

I would be getting a good mandrel bent system with the power upgrades you are running, the stock system is like trying to **** through a drinking straw.

Interesting, I suppose a bit better flow may help the EGT a little, sadly out here in Dubai we struggle trying to find someone decent to knock up a decent exhaust system. I would throw in a straight through section to replace the centre box if I could buy one off the shelf here, but they are not available without importing one from the UK.

The other option is to cut out the existing centre box and replace it with a straight section or something like a hot dog muffler, but I am not real keen on that for an experiment to bring the EGT down as the last thing I want is a loud and droning exhaust. 12 hours driving in the desert is fatiguing enough without out the added noise of no centre box.

Does anyone have experience of how much a free flow exhaust brings down the EGT and how loud a 110 is without a cat and centre box.