To get a true HP increase and better mpg, propane injection is what you guys should be looking at.
Wayne has been doing this for years on JDM's with success.
I drove a friend's HDJ81 stock and then with propane injection switched on.
The difference is truly noticeable with a high increase in HP, cooler temps (EGT) and that particular rig was running 4-5 mpg better.
http://www.luxuryimports.ca/products/pr ... ection.php
What is Propane Injection?
Propane Injection is where Propane vapor is introduced into the intake of the diesel engine to help burn the wasted fuel. it acts like a catalyst with the diesel to help burn the fuel completely.
What are the advantages of Propane Injection?
Propane Injection (PI) helps to burn all the fuel thus you have a cleaner burning engine. a normal diesel engine only burns 75% of the fuel so there is a waste of fuel as well this is were most of the black smoke comes from, unburnt fuel. will this system get rid of all the black smoke? No. but it helps to reduce most of it. under full throttle you might still see a small amount of smoke. there are other factors that also come into play causing black smoke from a diesel. PI also drops the Exhaust Gas Temperatures by 50 F - 100 F. this also helps the longevity of the engine. PI also boosts the horse power of the engine by at least 25% but not at the risk of detrimental engine wear. the horse power increase is substantial making hill climbs a breeze and towing a reality and a pleasure. even around the city and on the highway you will notice a quieter more powerful engine. Because the engine runs cleaner you will also find a side benefit of a bit cleaner oil at oil changes. PI will also increase the fuel mileage of the engine by 1-3 mpg (or even more) depending on driving style.
Will Propane Injection hurt my engine?
No, as long as you leave the settings as they are at time of install. the PI injects 2 cfm of propane into the engine to help burn the unburned and wasted fuel. We are not trying to run the truck on Propane just introducing a very small quantity to help combustion.
How long does a tank of Propane last?
This depends on driving style. on the smaller 2.4L a green camping bottle should last 4 tanks of fuel. on the bigger 4L-4.2L a 20 lb bottle of propane should last 4 tanks of fuel.
How does this Propane Injection system compare to systems like that from Bully Dog and other manufacturers?
Variable Rate Propane Injection comes on smooth and is comfortable, effortless and safe. We get the kits designed to start injecting at 2 psi boost. this allows the engine to begin producing horse power and also allows the turbo to start spooling before the propane is injected. this makes for a very drivable unit. there is no sudden load introduced to the engine at any time so the load factor is minimized which will also give longer engine life.
Benefits of Propane Injection:
* Simplicity is the key to getting the performance you want out of your truck.
* Simple patent pending design means: No mixers, sensors, evaporators, or switches to hassle with or adjust.
* Easy installation and maintenance.
* Cleaner burning fuel.
* Better fuel economy.
* Increased torque and horsepower for towing
Applications:
* The Variable Rate Propane Injection Kit is the perfect addition for your turbo diesel engine to gain horsepower at an affordable price.
* The Variable Rate is boost pressure activated, injecting propane into the engine as the boost pressure of the engine increases producing a throttle control, that you will definitely feel behind the wheel.
* Safety features such as: Power switch inside the cab so driver has full control of turning the system on and off. Fuel lock off valve, stops the flow of propane unless the vehicle ignition and system is on.
* An adjustable orifice allows you to change flow rates from towing to performance effortlessly in minutes.
* Variable flow rate delivers smooth, steadily increasing power, proportionate to the boost pressure.