Thread: D3/D4 Power Upgrades up to 300hp on the tyres

Watching & waiting...

I spoke with roo systems a few days ago they have put the stock car on dyno and gotten 170hp at wheels, after remap and exhaust have safely achieved 245hp at the wheels and 2 litres per 100 k better fuel economy. All done within standard ecu safety, I asked about egt gauge port in exhaust he said I don't need it. If car gets hot the computer will limp you off the same as standard. And because they are custom mapped toy can choose say 220hp. I may go for 245hp personally because I hate cruisers love racing them and roo only take them to 220hp at wheels. I have not done a kW conversion sorry

i have to say, that high egt's usually have little or no impact on cooling system temps, unless they are stratospheric for quite some time, so relying on an ecu high engine temp limp feature to avoid turbo and engine damage is incorrect.


i'd definitely recommend fitting an egt gauge (upstream preferrably) with these torque and power increases, especially if towing.

jc

Originally Posted by josh.huber

All done within standard ecu safety, I asked about egt gauge port in exhaust he said I don't need it.

Run the other way. The only way to know EGT is safe is to measure EGT. Particularly when tuning beyond stock.

Originally Posted by josh.huber

I spoke with roo systems a few days ago they have put the stock car on dyno and gotten 170hp at wheels, after remap and exhaust have safely achieved 245hp at the wheels and 2 litres per 100 k better fuel economy. All done within standard ecu safety, I asked about egt gauge port in exhaust he said I don't need it. If car gets hot the computer will limp you off the same as standard. And because they are custom mapped toy can choose say 220hp. I may go for 245hp personally because I hate cruisers love racing them and roo only take them to 220hp at wheels. I have not done a kW conversion sorry

This for what vehicle, model, engine size??

I have noticed a few tuners saying an EGT gauge is not needed with a power upgrade, experience has told me otherwise, I would fit one anyway, just for peace of mind.

Baz.

Originally Posted by Redback

This for what vehicle, model, engine size??

I have noticed a few tuners saying an EGT gauge is not needed with a power upgrade, experience has told me otherwise, I would fit one anyway, just for peace of mind.

Baz.

Baz, it's the 3.0 litre 180Kw

Originally Posted by josh.huber

I spoke with roo systems a few days ago they have put the stock car on dyno and gotten 170hp at wheels, after remap and exhaust have safely achieved 245hp at the wheels and 2 litres per 100 k better fuel economy. All done within standard ecu safety, I asked about egt gauge port in exhaust he said I don't need it. If car gets hot the computer will limp you off the same as standard. And because they are custom mapped toy can choose say 220hp. I may go for 245hp personally because I hate cruisers love racing them and roo only take them to 220hp at wheels. I have not done a kW conversion sorry

Care to quantify the highlighted portions?

They say that the disco already has egt in its system. Uses it to fine tune for emissions reasons which makes sense because exhaust temp plays a huge role in modern diesels meeting the euro specs, low temps to much particulate high temps to much nox. I never said it would be incorporated into engine cooling system temperature. They also fit a larger exhaust which helps keep temps down as things flow. Dougal and tombie if you wish to know more instead of asking me maybe call the blokes that do the work. Send them an email invite them to post maybe. It would be in there interest. Also egt in a modern diesel is easily predicted by the ecu. Because the egt will not change at a given fuel rate, engine speed, boost pressure,ambient air temp, coolant temp. They know exactly what temps each situation will produce and alter fuelling to suit