Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
New showcase items
New showcase comments
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Showcase
New items
New comments
Latest content
Latest reviews
Latest updates
Search showcase
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
West Point
The Library
7.3 Performance
Compound turbo problems
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
[QUOTE="6.0 Tech, post: 1558367, member: 23001"] What housing do you have on the 55 and what size turbine wheel? We have found in our 6.4 testing that it seems the low pressure is the restriction. Charlie has a good write up on it in the 6.4 section. We also found on a 7.3 we were testing compounds on that we gained some power by stepping the low pressure up from a 75 to an 80 and bumping the housing size on the low pressure which coincides with what we have seen on the 6.4. And I do agree with the hi pressure may be a tad on the large size. I found on my truck that by adding a low pressure turbo, spool slowed about 200-300 rpm, and this is with a vgt as a high pressure. On the 6.4 we have found the high pressure is basically for off the line help and then the low pressure does the majority of the work. On a 60-65psi overall boost pull, we are seeing around 38-40 out of the low pressure. I’m aware apples to watermelons comparison, but I think the concept still applies. Sent from my iPhone using Tapatalk [/QUOTE]
Insert quotes…
Verification
Post reply
Random media
Latest posts
Truck slipping into 4th
Latest: Sterling6.7
Friday at 7:18 PM
6.7 Tech
Do not recommend Choate Engineering
Latest: DEEZUZ
Wednesday at 10:22 PM
Newly Enlisted
A few turbo questions and a rant
Latest: ghohouston
Wednesday at 9:41 PM
7.3 Aftermarket
O
2011-2016 Radiator upgrade
Latest: OtisCreekConstruction
Wednesday at 6:17 PM
6.7 Tech
Performance shops
Latest: DEEZUZ
Tuesday at 8:42 AM
7.3 Performance
Members online
No members online now.
Forums
West Point
The Library
7.3 Performance
Compound turbo problems
Top