What about our 600tq 04.5 waste gates ?
08-20-2004, 05:35 PM
#16
Registered User
Join Date: Dec 2003
Location: Boise, Idaho
Posts: 5,540
Likes: 0
Received 0 Likes
on
0 Posts
Gypsyman,
You keep beating me to the punch! PLEASE keep me informed about you results with the B1-04. I am on the verge of doing this as well to cool my soon to be pressure stack with the VA CP3.2. I guess then I will find out what this tranny can hold...
You keep beating me to the punch! PLEASE keep me informed about you results with the B1-04. I am on the verge of doing this as well to cool my soon to be pressure stack with the VA CP3.2. I guess then I will find out what this tranny can hold...
08-23-2004, 11:13 AM
#18
Registered User
Thread Starter
Join Date: Aug 2004
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by John_C
With the wastegate line crimped off, cylinder temperatures will be lower as there is more air in the combustion chamber - like at idle, but not so dramatic.
Bigger issue is one of turbo life. You may be overspeeding the turbo at very high boost pressures (I don't have a map or I could tell you) , and it's even worse at altitude - 3%/1000' increase in turbo speed.
Turbo is accumulating fatigue everytime it is ramped up, and more fatigue with higher turbo speeds. I'd expect the compressor wheel to give up the ghost and break into 2-3 pieces (hub burst) at somepoint in your journey
With the wastegate line crimped off, cylinder temperatures will be lower as there is more air in the combustion chamber - like at idle, but not so dramatic.
Bigger issue is one of turbo life. You may be overspeeding the turbo at very high boost pressures (I don't have a map or I could tell you) , and it's even worse at altitude - 3%/1000' increase in turbo speed.
Turbo is accumulating fatigue everytime it is ramped up, and more fatigue with higher turbo speeds. I'd expect the compressor wheel to give up the ghost and break into 2-3 pieces (hub burst) at somepoint in your journey
08-23-2004, 11:31 AM
#19
Registered User
Originally posted by turboost
Wouldn't more boost without fuel create higher EGT's ? Or is that just true on gas engines?
Wouldn't more boost without fuel create higher EGT's ? Or is that just true on gas engines?
Rusty
08-23-2004, 03:26 PM
#20
Registered User
Join Date: May 2002
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
1Tony1
What EGT's are you seeing,and are they measured ahead of the turbo? Anything below 1300F ahead of the turbo is OK, over 1375 is uncharted territory for turbo life. Remember TIT (turbine inlet temperature) will increase with altitude.
Cummins/Dodge testing is carried out at 12K feet altitude at full load (hard to do)
to ensure the truck package is in the box relative to tubo speed and TIT.
If you had a way to measure turbo speed, I could comment vs. design max speeds. Magnitized impeller nut or blade counting are two feasible methods.
What EGT's are you seeing,and are they measured ahead of the turbo? Anything below 1300F ahead of the turbo is OK, over 1375 is uncharted territory for turbo life. Remember TIT (turbine inlet temperature) will increase with altitude.
Cummins/Dodge testing is carried out at 12K feet altitude at full load (hard to do)
to ensure the truck package is in the box relative to tubo speed and TIT.If you had a way to measure turbo speed, I could comment vs. design max speeds. Magnitized impeller nut or blade counting are two feasible methods.
08-24-2004, 05:06 PM
#21
Registered User
Thread Starter
Join Date: Aug 2004
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
With the ez set on the bottom position I could easily put it over 1400 towing up hill if not for throttle control. I was holding (with throttle) at 1350 with a relief down to 1200-1250 every little bit via throttle postion. I am seeing 50 to 100 less egt now running through the gears with the higher boost.
For some reason, on the toughest hills the boost would drop down to 26 and hold there....... if it would stay up around 30/32 where it should be, that would help the egt's. That is why I decided to try clamping the line. I have not had a chance to tow this way yet. Maybe an in cab bleed adjustable valve is what I need. A boost controller would be nice, but I don't want to spend the $$$
For some reason, on the toughest hills the boost would drop down to 26 and hold there....... if it would stay up around 30/32 where it should be, that would help the egt's. That is why I decided to try clamping the line. I have not had a chance to tow this way yet. Maybe an in cab bleed adjustable valve is what I need. A boost controller would be nice, but I don't want to spend the $$$
Thread
Thread Starter
Forum
Replies
Last Post
moparerrnocar
1st Gen. Ram - All Topics
3
05-18-2011 12:02 PM
Haulin_in_Dixie
Performance and Accessories 2nd gen only
7
03-09-2005 12:13 AM