5.9 Cummins with 3LM466 Turbo July 26, 2019 03:55AM
Our class rules require the use of a "box stock" 3LM466 on our 5.9 Cummins with a rotary pump at 3000RPM. We are having a hard time spinning the turbo to get off the line and at the end of the run we go under the turbo. We also are running high exhaust temperatures. It is my belief that this turbo is not a good match for this class and I do not believe my competitors are actually using this turbo.

Any comments on the use of the 3LM466 turbo in this application?

Thanks
Rich
Reply Quote

Re: 5.9 Cummins with 3LM466 Turbo July 26, 2019 06:30AM
Get with your class Tech. official to see if you can run a smaller exhaust housing ,
Reply Quote

Re: 5.9 Cummins with 3LM466 Turbo July 26, 2019 06:40AM
I am going to push for limits based on inlet and exhaust outlet size, not stuck to one turbo.

Rich
Reply Quote

turbo troubles July 26, 2019 11:18AM
Im on the outside looking in..................... your statement "you dont think your competitors are using this turbo" hmmmmmmm heres my take others PROBABLY have more cubic in thus that turbo DOES in fact work for them as is. You however are behind on cubes therefore the housing is too big = slow turbo speed = high exhaust temps= no lug falling under the charger at the end.
Reply Quote

Re: turbo troubles July 26, 2019 11:56AM
Unless they are specifically requiring that you must use a particular Borg Warner part number, you can buy "Out of the Box" 3lm turbos with different part numbers for different applications that will outperform other "Out of the Box" turbos with different part numbers. I know this to be true because we have 3 different untouched 3lms that perform at 3 different levels. All depends on the application. They have different 3lms for many different applications. So if they dont list a specific part number, do a little research or talk to your local Borg Warner dealer to help you choose one that is right for your cubic inches and application. Good luck!
Reply Quote

Re: turbo troubles July 26, 2019 04:13PM
By class rules, maximum displacement is 360 Cu In.
Reply Quote

Re: 5.9 Cummins with 3LM466 Turbo July 26, 2019 12:11PM
Which exhaust housing do you have? If it’s the 241, you could drop to a 231 but it may require machining
Reply Quote

Re: 5.9 Cummins with 3LM466 Turbo July 26, 2019 01:02PM
What are you considering high exhaust temps? If you are allowed water inj. you should run some water to help with temps and to drive the turbo harder. Which will help you and make more power. Just a suggestion not knowing more details.
Reply Quote

Re: 5.9 Cummins with 3LM466 Turbo July 26, 2019 04:14PM
Water injection, intercoolers etc are not allowed.
Reply Quote

Re: 5.9 Cummins with 3LM466 Turbo July 27, 2019 03:49AM
Have any videos of the tractor pulling?
Reply Quote

Newer Topic Older Topic

Author:

Your Email:


Subject:
Spam prevention:
Please, enter the code that you see below in the input field. This is for blocking bots that try to post this form automatically. If the code is hard to read, then just try to guess it right. If you enter the wrong code, a new image is created and you get another chance to enter it right.
Message:
Website Statistics
Global: Topics: 38,580, Posts: 229,613, Members: 3,320.
This forum: Topics: 37,058, Posts: 225,861.

Our newest member Fechtner Racing