What did you do to your Patrol today!

[Sprock]

I know under your bonnet is full hence why I made the 'safe' statement- HOWEVER I stick to my word so I have been monitoring your work on your vehicle - hence bringing it up from time to time 😜

[Sprock]

@mudski when I got the big Cummins tuned up in the truck , apart from the BIG hp difference the other thing I noticed straight away was the increased coolant temps & the Horton fan cutting in HEAPS more - as they say you can't get more hp without more heat .

[MB]

Had the privilege once over several hours of listening into diesel dark arts true gurus working away like Nissannewby, Old Mav & Bennyboy. As best I remember coldest air intake possible by whatever means (front mount IC’s and or water-meth injection etc...) and perfectly fueled/tuned pumps could create big HP/KW whilst efficiently keeping block/water temps at bay too I believed! And....the finer details I have forgotten now too :-)


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[mudski]

Had the privilege once over several hours of listening into diesel dark arts true gurus working away like Nissannewby, Old Mav & Bennyboy. As best I remember coldest air intake possible by whatever means (front mount IC’s and or water-meth injection etc...) and perfectly fueled/tuned pumps could create big HP/KW whilst efficiently keeping block/water temps at bay too I believed! And....the finer details I have forgotten now too :-)


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Yeah I think i need to get it retuned. As it wasn't retuned when the new squirters went in, it was pretty much just a before and after dyno run for comparison. I reckon a retune will show different results.

[MB]

Please do dyno run it with Andy at DieselTec. Andy and Mat legend via phone to QLD time sorted AB’s end tune finally to absolute perfect current usage needs personally witnessed now as track tail end behind charlie me always!


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[PeeBee]

@mudski when I got the big Cummins tuned up in the truck , apart from the BIG hp difference the other thing I noticed straight away was the increased coolant temps & the Horton fan cutting in HEAPS more - as they say you can't get more hp without more heat .

Correct, if you create more energy you create more heat, and it can only be transferred, not destroyed, as you have no doubt heard before, so the upshot is a rise in cooling temps, totally logicalin the same closed loop system. To maintain the same temps would require a larger/more efficient cooling system in order to transfer the heat to atmosphere without a temperature rise in the cooling liquid.

[mudski]

Please do dyno run it with Andy at DieselTec. Andy and Mat legend via phone to QLD time sorted AB’s end tune finally to absolute perfect current usage needs personally witnessed now as track tail end behind charlie me always!


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Yeah I'll call them I think. I doubt i'll have time before I go away on the 5th though.

[MB]

Correct, if you create more energy you create more heat, and it can only be transferred, not destroyed, as you have no doubt heard before, so the upshot is a rise in cooling temps, totally logicalin the same closed loop system. To maintain the same temps would require a larger/more efficient cooling system in order to transfer the heat to atmosphere without a temperature rise in the cooling liquid.

I really can’t remember the specific dark arts discussed mate but think the ‘transferring’ of heat may have something to do with it. Bigger runout exhausts and perfectly flowing custom intake manifolds also came into play with pressurised turbo over high flow too I think but unsure :-(


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[PeeBee]

Sure that will help, but simplistically, if you create a bigger bang, release more energy, it is contained within the cylinder and transfers some of that heat to the block, and rest gets evacuated. To escape no energy transfer increase to the block would be remarkable, and hence not have a rise in cooling temp the same. You might see this if you changed the block materials to an insulator, like a ceramic, but unsure if this is avail for the TD42? Anyway, thats getting close to my tap-out on the subject, so need some input from the diesel cycle gurus regards charge temps and air density and highflow manifolds etc I reckon.

[MB]

Cheers Philstar!
Some nigh nigh petrol rice burner heat releasing footage for us both. Just like counting sheep to sleep, enjoy :-) https://youtu.be/PWTs-dW73f4


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