RJ MFG New Oil Pump Gears (Rev to 9k!!!)
 

Hey Guys, I have been off and on the phone today with the guys over at RJ MFG! They have some good news! Finally, an upgrade to the factory oil pump to allow us to run higher RPMs! Below is the simulated oil pump upgrade.

https://scontent-iad3-1.xx.fbcdn.net...60720918_o.png

I just confirmed that their oil pump gears passed the bench testing by within 3% of the simulation model all the way to 10k RPMs and held 90 psi of oil pressure for 5 hours while being put through a torture test to simulate the strains of shifting and over-revving! Safe to say your oil pump will no longer be the weak point in making Hi RPM runs!

RJ MFG is now a vendor on here and have told me that they will be offering a introductory special of $699 shipped for the first 10 buyers! the retail on these will be $749 MSRP...

Once I have the bench test results I will post them up.

Note:

Factory gear is sintered metal construction with a tensile strength of ~6,000psi
RJ MFG gear is harder Chromoly steel with a tensile strength of ~140,000.

The issue with the powder metal units is micro-welding to the crank. The new design should effectively eliminate that issue and a 10k 5 hour torture test would have seized a factor gear within seconds!

So who is interested?:driving:

First 10!
1. Bullitt5897
2. Zeliminator
3. Juicinjake
4. Juicinjake - 2
5.
6.
7.
8.
9.
10.

First 10!
1. Bullitt5897
2. Zeliminator
3. Juicinjake
4. Juicinjake - 2
5.
6.
7.
8.
9.
10.

This should be interesting. I can't wait for the results for this.

I will have one of the first units on my new motor.

I talked to RJM at length at ZDayZ about this. I'm interested but don't have the cash now right. Just got done remodeling the kitchen. With what I spent on that. I could have out done bullitt.

I wouldn't account you running these gears as a good tester ( no disrespect) but you have enough money in that motor to buy 20 370z's. I think alot of people will buy these gears and blow up alot of motors thinking this is the solution to rev to the moon ( reason behind that is they will not get the additional support mods for the application, we all know there will be a handful that will do this). Sasha already proved that the oem crank can with stand 9k but not for sustain period as micro tears will form 9 but he did run a dry sump). So my question, are there any road racers or race teams going to hop in this group buy, to test these gears in real world situations. I hope these gears do hold up to the abuse of raising the redline.

I am building a 3.7L block... But again I like you said will be investing in the parts to make a true 9k machine. That means sunny Bryant billet crankshaft to go with the billet gears. I am going fully forged internals (rods,pistons) and I have a built set of heads which if all goes as planned will have the new jwt cams.

Like I mentioned earlier this just eliminates the first major hurdle which was the oil pump. The world challenge guys did this prior to 2012 in their racecars because dry sump wasn't homologous for the series. As far as race teams picking this up most will go dry sump but for privateers and the rest of us this is a tried and true solution for a 9k oil pump.

So you're building 2 cars now? Well looks like you're going to beat me to my idea. I'm going the same route minus the bottom end build. Are you going with the stage 1 jwt cams?

So can you throw these on a stock motor and rev away??

:facepalm:

Z eliminator is in for the oil pump.

Z

Doubt it, The stock internals can only withstand so much abuse. I.E. stock crank.. Might have to swap out for a better one...

Can someone confirm this??

See post 7.


See post 9 for a laugh.

And I just replaced the stock oil pump yesterday. Damn. Well, my shop did. I didn't.

The Stage 2 cams... due to be here in 60 days...

Also, only building 1 car... selling my 4.5L short block too much torque for a High HP Build... We are already @ 800ft/lbs by 4000rpm if we kept going the car could have made north of 1100+ft/lbs at the same rpm level now imagine trying to get that to hook!:driving:

So are you representing RJ Manufacturing? If not, who is running the group buy?


9K RPMs = :yum: :driving:

So whats the major difference between this and the nismo oil pump? If I remember correctly the gears were billet aluminum and these gears are made of steel?

If your referring to the Nismo oil pump as the stock oil pump, they are the same oil pump that comes with the VQ, there is no difference between the Nismo model and the base model when it comes to the stock oil pump.

I'm assuming he means the Nismo oil pump. It's about $1200 and does not come with the Nismo.

Oh ok, thanks..

What's wrong with post 9? Rev away sounds good to me!!

I am just putting together a list for them. They are a vendor here and will be taking all payments directly.

Because you need supporting mods to be able to do it. Without them you will have issues such as a broken crank or valve float. Stock motor = No go.

also the Nismo RC oil pump is just a higher grade set of powder gears. This concept has worked in the World challenge series for several years. After talking with the guys at JWT they have not seen anyone break hardened billet gears.

Going to 8400 or even 8500 is fine on the stock motor for limited duration but you run a higher risk of breaking something. 1slow370 has been running 8700rpm on a stock crank for thousands of miles but he is also dry sump.

Yes I was referring to the nismo RC oil pump. Thanks for the calrification

Thanx for this. 9k is crazy cool but I'm not looking to break stuff. Wanting to shoot for 8200 with the stage 1 JWT cam and was planning on the nismo pump but now we have a real alternative.

Yeah the gear really gets us past the first barrier. I would highly recommend this if you want to run north of 8k rpm on your car. For the price it cant be beat!!!

I Thought he was running 8250 rpms? unless he up'd the rpms sometime after he sold the car?

8200 on my motor and the oil pump let go
car shut off
expensive tow to get home
z

Yes they have been tested... They have been physically tested and torture tested for 5hours straight. All gears come with documentation. Oem gears have broken on multiple cars even Zeliminator has broken them as stated in his post after running 8200rpm

Think Megan370 broke his too. :( When I was talking to RJM at ZDayZ. He had a set there, and the OEM's too. You could see the difference between the 2 sets.

Something to do with the two contacts points, rjm being reinforced and thicker

What you end up with on the stock units is a 1mm contact point that gets really hot and the gears can micro weld to themselves to the crank. So as the car is ran really high and hard you get these micro welds once the car is turned off and everything cools down. Then when you go to push the clutch in to start the car it shatters... This is how it happens everytime. The tensile strength of the oem Sintered gears is about 6,000 psi and the new billet Chromoly steel is over 140,000 and it's a harder material which will be stronger and more resistant to micro welding.

That

He is only running 8,300 rpm on a stock crank with bmw m5 con rod bolts. Bottom end is oem besides those con bolts.

I guess he dropped it back down since I last rode in the car... It was retarded either way! The gears felt like they never ended... EVER!!!:driving:

The other issue with the oil pump is the backing plate. Are they going to address that as well? Also curious about the bench test, were these placed in an engine and ran or just spun with an bench top motor?

Hi Everybody,

I would like to thank Mike aka "Bullitt5897" for stepping in and helping us get this new product launch started. After several conversations we have decided to bring Mike aka "Bullitt5897" into the team to help assist the community through sales and technical support. Going forward the RJ MFG account will be taking over this thread and presenting new and future product announcements. Mike aka "Bullitt5897" will not be taking questions on his personal account but will be piloting our vendor account here on the forums. So please direct all your questions to our account going forward.

Thank You,

The RJ MFG Team.

What have you seen as an issue with the backing plate? We are still awaiting the files from the bench test results. As soon as those files are available we will put together a view for the community. AS far as the bench test methodology. We used a third party testing facility that specializes in testing these parts this is not an inexpensive process but given that this is such a crucial part that our motors rely on we wanted to ensure that the parts we would be using would support well beyond the goals of the community. Please note that these gears were installed into a factory oil pump and the bench test simulates real world environment that the oil pump will go through. All of the shock, heat and rpms you can throw at this oil pump was done and even past the extremes of application. Rest assured that this is a product that will live up to its advertisement. :tup: