Thread: Performance chips> Are they worth the money???

hi there brett

thanks for that reply, is there any chance you could direct me to that post? ihave heard this commercial model, was it the 8 speed on offer?

thanks in advance....

Bill

Originally Posted by discotwinturbo

Bill,

Maybe the uk forum is the best place for this question, as they have had the commercial model with the lower output for a few years. It's only been here a few weeks.
Gordon from GOE has mentioned some differences on another post.

Software would play a part, but it will be more to it then that.

Brett...

thanks Brett, I've been looking for where I had read it but could not remember - your info reminded me.

Bill this info, as scant as it is, comes from a very knowledgeable forum member:

http://www.aulro.com/afvb/d3-d4-rrs/...ml#post1833440

There are at least differences in the firmware in the ECU's, so a simple remap won't give identical outputs. I've been told the actual ECU chip is different, but I haven't confirmed that. The differences in physical mechanical components I'm also not sure about.

Cheers,

Gordon

Thanks Gordon and Sean for the redirect of forums

control modules? does that mean the chips that limit engine output in the name off engine safety ???? or are you referring to an extension of the ecu related to accessories ???? as for firmware of ecu a chip , a chip would bypass that because it comes after the computer.... so a this point I still have my doubts!!! truth be told i'm still unsure....

ill keep searching, the consensus on reviews is that its a detuned engine... having limited inside knowledge ill refrain from passing verdict.... ill have to wait and see....

BTW : LOVE THIS FORUM, thanks to all my new fellow members for assisting me in getting more confused!!!! ha ha only kidding

cheers

Bill

Hi Bill,
The higher output 3.0Lt is a gem.
Its the first 4WD I have owned that I havent chipped or upgraded the power in any way (except for a slight exhaust mod to help keep EGT down).
Unfortunately, I had to sell the D4 recently and have already done a power upgrade on its replacement.....even though they have the same size diesel engine.
The low down torque that you get from the high output 3.0Lt is awesome.

Cheers, Craig

Originally Posted by bilbobaggins

ill keep searching, the consensus on reviews is that its a detuned engine... having limited inside knowledge ill refrain from passing verdict.... ill have to wait and see....

BTW : LOVE THIS FORUM, thanks to all my new fellow members for assisting me in getting more confused!!!! ha ha only kidding

cheers

Bill

The fuel injectors are definitely different - different part numbers. The lower-powered engine's injectors have different flow characteristics.

Land Rover describe the ECU and "several other control modules" as being calibrated differently and that it is "... not possible to to re*configure a lower power output engine to the higher output specification".

Of course, an aftermarket remap will go some way to making up the difference!

Cheers,

Gordon

now your talking Gordon

different injectors, sure i believe that, just wandering where your getting you info from... you see the reason i ask is that i want to chip the d4 so it can hopefully have similar grunt to the more powerful option.... it might therefore require a different tune specifically for that model... the more precise info i have the better equipped i will be to get it chipped correctly

any chance you can give me the part numbers/or at least where i can look up this info? if you can it will be greatly appreciated....is there a part catalogue i might be able to look up?

cheers Gordon

So far everything you've said is wanting to Chip the engine but keep talking of "downstream" add on boxes.

These boxes are Not the way to get an engine running right!

The remap experts - and I mean this - cannot get the same grunt.
The "commercial" engine (lower spec one) is limited in its upgrade capability.

If it was able to be mapped to full output then the LR specialist tuners would be doing it for certain!