FAQ

Frequently Asked Questions:

Question: What Transmission Options do we recommend for a Patrol with a 6BT? 

Answer: For touring cars we recommend the factory Nissan Gearbox with a set of Par Gearsets. These are very proven design that alot of people have used and abused. 

for Autos Yarra Valley Autos does a heavy duty RE4 with a triple disk lockup converter. He Upgrades the Clutch Drum and offers Billet Shafts.  

Question: What about 4L80E's for the 6BT?

Answer: While these may be ok for touring and closer to stock applications. These tend to not like the heat generated when locked up in 4th gear.  Opinion varies here based on who you talk to.  Good option for the stock to mildly modified touring 4bie. 

Question: Are the Weifu Pumps any good? 

Answer:  We have many motors with these pumps and had very few issues with them. Usually problems stem from high mileage, or dirty fuel. These and BYC are sold on new Cummins from the Dong Feng Cummins Engine Company (DCEC).  We have done lots of testing both on test equipment, and in the field and feel these are great value for money pumps that can accomodate most peoples builds out of the box. 

Question: What is BYC? 

Answer:  BYC is an OEM parts supplier for Bosch. You will often times find Bosch parts inside BYC Injection Pumps.  Things like Delivery Valves, Springs, and Keepers (valuable when upgrading the pumps for more HP!)

Question: What are your OEM long blocks?

A: These are from an engine supplier who use Genuine DCEC Raw Cast Blocks. They are machined and assembled with new parts of the highest quality. 

Each Long Block has a no load cold run test performed on them before they leave the factory. 

It is performed as follows:

Oil system is pressurised to 70PSI, then run on a dyno at 320RPMs for 10 minutes, and then 640RPMs for 10 minutes. This really helps in the break in process of your motor. 

Question:Do you warranty your OEM long blocks? 

Answer:  We offer a 12 month warranty on OEM long blocks. 

Question: What do the used DCEC engines come out of? 

Answer: These are generally fleet or truck engines.  They are never turned up, don't have aftermarket parts to make them faster.  typically have around 100-200ks on them.  Out of hundreds of engines sold we have found 95% of them have compression around 300-400PSI (New typically is around 450PSI)

We run, and compression test, and valve adjust every engine that goes out the door. so baring changing gaskets you have a ready to go engine. 

Question: How do I wire my Fuel Shutoff Solenoid (FSS)?

Answer: This page has the best diagram and explanation of what the FSS is and how it works.  FSS wiring example