30psi good or bad
#18
Registered User
Join Date: Sep 2006
Location: Germany but my Heart is in Eastern Oregon
Posts: 477
Likes: 0
Received 0 Likes
on
0 Posts
Roger i think when i get a chance im gonna wounder outside check to see if i have one then if i dont im gonna order one. I cant image there all that hard to install?
#21
My wastegate is totally disabled, I put a brass plug in the port on the turbo so it can not open. As long as you don't have mods to the point that your truck will build more than 35PSI you should be fine. Mine will only build about 32-33PSI empty. It would probably build more if I were pulling something. I also have a 12Valve in a Freightliner with the wastegate disabled, same results about 35 PSI on it loaded or not and it weights 16K empty. The boost elbows don't work very well anyway.
#22
Registered User
Robins,
I linked a picture of the brass boost elbow you need for your turbo. It will let you create more boost and let you make power much longer (wider power band), but it's not really going to make much more horsepower than what your Quadzilla already makes, but the drivability difference is huge.
I linked a picture of the brass boost elbow you need for your turbo. It will let you create more boost and let you make power much longer (wider power band), but it's not really going to make much more horsepower than what your Quadzilla already makes, but the drivability difference is huge.
#25
Registered User
Thread Starter
#26
Registered User
Thread Starter
#27
Registered User
Join Date: Jan 2007
Location: Mount Juliet, TN
Posts: 693
Likes: 0
Received 0 Likes
on
0 Posts
Right, the 4510 is an air filter with a 4.5" inlet. Measure your tube first to be sure it will fit. That would be your best option. I try to stay away from oiled filters.
#28
The Guru
Join Date: Jan 2004
Location: Airdrie Canada
Posts: 6,589
Likes: 0
Received 0 Likes
on
0 Posts
To plug up you wastegate complete, just pull the hose off the wastegate actuator. Plug-up the brass fitting. You should be ok, if you pull more than 35 psi then go the reduced flow (orifice) brass elbow route. A visa grip would work to just pinch the rubber hose. You could also put in a pressure regulator set at any pressure you want to dump open your wastegate. Of course this would complete dump open your wastegate, which is good at 35 psi. I've pulled 37 psi out my old HY-35, lots and lots of times. If you have high egt's crank up your boost. If your not making anymore power from 27 psi vs. 30 psi, why play with it. The reasons I can see to increase your boost is egt's and smoke control (power). Installing the brass fitting may or may not fully open the wastegate at 35 psi, there is lots of variables like actuator condition and its length (this determine the holding force on the wastegate flapper). I had one actuator that was almost seized shut and took 40 psi to open vs the stock 20 psi.
Thread
Thread Starter
Forum
Replies
Last Post
Franklin
3rd Gen High Performance and Accessories (5.9L Only)
12
12-08-2008 10:50 AM
CrashCade
3rd Gen High Performance and Accessories (5.9L Only)
17
07-24-2008 10:31 AM
D.Wiggs
3rd Gen High Performance and Accessories (5.9L Only)
5
01-04-2007 04:24 PM
BigDan
3rd Gen High Performance and Accessories (5.9L Only)
3
11-07-2006 12:05 AM
jaypry
Performance and Accessories 2nd gen only
10
01-16-2006 11:36 AM