Vehicle & Technical > Defender
TD5 power upgrades
L90TD5:
--- Quote from: "Redlinemike" ---
now, what i would like to see is an ecu reflash that can take an EGT input,also an ecu reflash that allows alternative maps that are driver changable to suit conditions & also what you are doing....
Can a reflash do the above? :roll:
--- End quote ---
I wasnt aware that a TD5 was able to measure its own Exhaust Gas Temperatures and record them in the ECU? How does the box do this on the TD5?
To measure egt a sensor has to be fitted into the path of the EG somewhere.
Im still confused on the EGT though :) Does an additional sensor have to be purchased and linked up to the box?
Can you elaborate? Cheers,
T
Porny:
--- Quote from: "Jake" ---
--- Quote from: "Porny" --- however I do have one problem with it, along with all the people who offer plug in boxes!!! :shock: ...
Regardless of the fact that most of the people who are retailers for plug in boxes have absolutely no technical know how... i.e. Muppets!!!.... Who simply sell plug in boxes without really knowing what they are selling!
--- End quote ---
Ian.
Are you implying that Devon 4x4 are muppets without any technical knowhow?
Thats a bold claim and very wrong statement
:roll:
--- End quote ---
Jake as pointed out, I only said most....
Devon 4x4 are an exception to this rule (as per other similar companies) - I was hinting more at the Land Rover parts suppliers that don't actually know what they are selling... or how it works. And I'm not naming names.
Ian
Porny:
--- Quote from: "L90TD5" ---
--- Quote from: "Redlinemike" ---
now, what i would like to see is an ecu reflash that can take an EGT input,also an ecu reflash that allows alternative maps that are driver changable to suit conditions & also what you are doing....
Can a reflash do the above? :roll:
--- End quote ---
I wasnt aware that a TD5 was able to measure its own Exhaust Gas Temperatures and record them in the ECU? How does the box do this on the TD5?
To measure egt a sensor has to be fitted into the path of the EG somewhere.
Im still confused on the EGT though :) Does an additional sensor have to be purchased and linked up to the box?
Can you elaborate? Cheers,
T
--- End quote ---
Interestingly a Defender Td5 can measure (in theory) the CAT temperature (in the down pipe - so could be classed at EGT at a push, with a squint - but too far from the manifold to actually be useful) but is not a function of the engine ECU, and is in fact of function of the 10AS alarm unit, that is built in with a CAT over temp dector, but is not used in any market to my knowledge.
Mike, in all honesty as I've said before the Dastek unit is the best of the bunch when it comes to plug in units... but a plug in unit will never be a pefect match for an remapped engine ECU.
Some of the interactions mentioned don't apply to Td5's (which this thread is about)....
But at least with the Datek (Td5) units you actually plug into both the engine and the dashboard loom so will see all the of inputs/outputs the engine ECU will see.
Ian
thermidorthelobster:
I spent a lot of time researching upgrades for the Disco TD5 and I came to some conclusions.
1) Some of the upgrade people talk a lot of rubbish about what their stuff does. They'll talk the talk on the phone, and give you stuff about turbo boost pressures, injector timings, fuel mappings etc, but when you actually drill down to what their particular piece of hardware is doing, it's pretty unexciting and often involves extending the injector pulse length.
2) Upgrading the ECU programming gives a lot more control over the upgrade than some of the external boxes.
3) The dynamo graphs many of the developers produce are basically flawed, and often inconsistent with their own data. Some of the "before" curves show more power/torque than some of the other "after" curves, and nearly all of them show a fundamental mathematical impossibility with the relationship between power and torque at low revs.
4) One of the more "extreme" upgrades seems to almost invariably result in warping exhaust manifolds, so much so that when people post about warped exhaust manifolds, so far I have a 100% success rate in predicting the type and manufacturer of the engine upgrade they have installed.
After trialling 3 upgrades I went for the Autologic remap. It's not perfect, but it's better than the others I tried. After a while you might as well just get a V8 and gas it.
Jake:
--- Quote from: "Porny" ---Devon 4x4 are an exception to this rule
--- End quote ---
Thank you for clearing that up :D
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