Exposing the Myths on Fuel Pump Compensators (Aneroid) added to After Market Turbo Systems
The addition of Fuel Pump Compensators to enhance power with After Market Turbo Systems:
There is quite a debate raging about Diesel Fuel Pump Modifications as people strive for more power than is standard from their After Market Turbo Charged 4WD! One of the main reasons driving this topic though is misinformation from diesel pump shops promising a large increase in power in addition to the gain obtained from the turbo! I have put our views below in point form.
- An Aneroid is a $1000 to $1800 addition to the existing injection pump. It is solely classified by the component manufacturer as a ‘Pollution Control Device’ fitted to factory turbo diesels.
- Contrary to this it is promoted by Diesel Injection shops as a performance device for after market turbo installations! What people don’t understand is that the same heavy fuel loadings obtainable with an Aneroid installed to a Diesel Injection Pump can also be obtained easily at no cost without it!!
- A correctly set up diesel injection system in conjunction with an After Market Turbo installation will perform nearly as well as the equivalent Factory Turbo vehicle. This is the way the After Market Turbo System has been developed and it should stay that way. The Turbo System should perform ’Stand Alone’ with no additions like large exhausts and fuel pump modifications.
- An Aneroid fitted to the injection pump of an After Market Turbo diesel makes it magically outperform a factory turbo equivalent safely. The reason for this is obvious- ‘Over fuelling above the recommended levels UNSAFELY!’
- Over fuelling outside the Aftermarket Turbo System Manufacturers Specs may mean more power but this is unsafe for the engine.
- The addition of an Aneroid to a fuel pump is not accepted by most aftermarket turbo manufacturers as it promotes over fuelling which in turn can create a huge reliability cloud over their product!
- All After Market Turbo System Warranties become Void if a pump is modified outside the said After Market Manufactures specs! Just remember this if you have New Vehicle Warranty being covered by the After Market Turbo Manufacturer like DynamicTurboSystems does. You will lose your coverage!
- The usual argument by the pump shop trying to sell an Aneroid as an addition to a turbo installation is that the engine will run smoother and produce better efficiency. As we say it has no relation to smoothness and the efficiency phrase is a catch!
- The biggest concern is, “What specification is the Aneroid set to?” Again the usual story given to a potential customer by the diesel pump shop is that it is set to factory fuel specs. For starters there are NO factory fuel specs for After Market Turbo installations supplied by either the Original Vehicle Manufacturer or the After Market Turbo Manufacturer. Secondly the fuel spec that the diesel pump shop usually is talking about is the Genuine Factory turbo specs for fuel loadings. This is a real worry as the Factory turbo is usually a completely different combustion system with much more durable pistons to cope with heavy fuel loadings. To set up an After Market Turbo to match these fuel loadings would lead to an obvious eventual outcome! A damaged engine. Unfortunately this damage is not short term. It happens over time and usually rears its ugly head gradually.
- The only Specifications supplied by Turbo System manufacturers are Boost Pressure, Air/Fuel ratios and Exhaust Temperatures (No engine output figures are ever supplied)! These were obviously not developed with a Fuel Pump Aneroid and so could not accurately be used with one!
- At the end of the day it is a fact that if the fuel loadings are kept within the After Market Turbo Manufacturers specifications via Boost and Exhaust readings you will not only keep your warranty (which will most likely become Void if an Aneroid is fitted) you will have your diesel engine for the long term!!
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