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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old July 18th, 2017, 15:33   #31
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Well that post sums it up.

I knew the cummins was at an angle with an offset bowel. Looking at the two motors it would appear to work. However measuring reveals two different angles. 6 degrees is very significant when it comes to spray patterns. If it cant go all the way across the bowl atomized to burn the best you could hope from it...then it will hit the piston and pool into a drip. Sounds like a whole lot of smoke waiting to happen. I am too old for that anymore. It's unburnt fuel and wasted power! That's where the giggle factor is! lol

So in my reason for the post... a search for a truly high quality nozzle, who really has a great nozzle for a driver and 250 hp? And what backs up that opinion beyond the marketing hype?
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Old July 18th, 2017, 15:36   #32
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I've wondered lately about replacing the transfer pump with something belt driven, like a power steering pump.
The timing advance is entirely independent of case pressure (so long as there is case pressure above inlet pressure) unlike on mechanically governed pumps where the pressure curve sets the timing curve. Figure you could run 500-1000 PSI of case pressure and get much better element filling. Pressure'd likely stiffen the pump body somewhat as well if it didn't crack it.

You can make that work. The pump can be modified to as low as a pressure as you like. I had one modified to be the recirculation pump for an air to water intercooler on a VR6.
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Old July 19th, 2017, 13:15   #33
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You can make that work. The pump can be modified to as low as a pressure as you like. I had one modified to be the recirculation pump for an air to water intercooler on a VR6.
I've got a PS pump doing the pressure lube on my metal shaper, at 10 psi.

You running coolant through one? Seems kinda odd, but if it lives, who's to say...
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Thanks for the link.

The issue with running an inlet pressure higher than 13 or so psi is that, at least in Cummins VE pumps, it will blow out the input shaft seal.
Maybe some machine work could allow for a retaining ring or plate of some sort?

Sent from my mobile look-at device
Not 1500 psi inlet pressure, but case pressure. "Inlet pressure" in this hypothetical pump could just be a return line to the tank.

Last edited by [486]; July 19th, 2017 at 13:18.
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