The page at the Link is an info page from HTT, High Tech Turbo:
http://www.htturbo.com/Service.htm
I purchased [but haven't installed] their Stage II Upgrade for my Holset H1C on the Cummins 4BT engine. I went with a minor upgrade because at time of purchase it looked like I would be doing some extensive heavy towing, and didn't want monster EGT's to smoke the little spinning & pumping parts!
Now the towing issue doesn't apply, so I thought, Hey, maybe I need a big old honkin' compressor upgrade instead of that puny Stage II. After reading the info on their site I'm going to install what I have. [Good, 'cause I'm broke anyway hah!]
Living in a mountainous area and using an NV4500 in a full size Dodge I need power down on the bottom, in addition to an increase thruout the power range. Turns out the Stage II is still the correct choice for my application from what I see on HTT's site. Hopefully their info page [and they have other info] will help someone else make the right decision on compressor/turbine or turbo upgrades.
Some folks will want to check their 'Specials' page too. HTT has a very good reputation on several Dodge Cummins sites.
http://www.htturbo.com/Service.htm
I purchased [but haven't installed] their Stage II Upgrade for my Holset H1C on the Cummins 4BT engine. I went with a minor upgrade because at time of purchase it looked like I would be doing some extensive heavy towing, and didn't want monster EGT's to smoke the little spinning & pumping parts!
Now the towing issue doesn't apply, so I thought, Hey, maybe I need a big old honkin' compressor upgrade instead of that puny Stage II. After reading the info on their site I'm going to install what I have. [Good, 'cause I'm broke anyway hah!]
Living in a mountainous area and using an NV4500 in a full size Dodge I need power down on the bottom, in addition to an increase thruout the power range. Turns out the Stage II is still the correct choice for my application from what I see on HTT's site. Hopefully their info page [and they have other info] will help someone else make the right decision on compressor/turbine or turbo upgrades.
Some folks will want to check their 'Specials' page too. HTT has a very good reputation on several Dodge Cummins sites.