24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
Sponsored by Trailer Plus

Pinched Off Wastegate Hose, How Much Boost Should I See?

Thread Tools
 
Search this Thread
 
  #1  
Old 06-14-2008, 10:04 PM
brianell's Avatar
Diesel Fan
Thread Starter
Join Date: May 2008
Posts: 51
Likes: 0
Received 0 Likes on 0 Posts
Default Pinched Off Wastegate Hose, How Much Boost Should I See?

Im getting to 22-23 with the wastegate hose pinched off.

2 questions really, Ive been told the factory comp defuels at ~22psi. So with that in mind I dont think I would be able to go over 22 ish?

But, Im also told I should be able to hit 30 psi on this truck with the wastegate disabled regardless.

Fueling issue is what one guy tells me, the other says it defuels, therefore cant get over 22psi.

Hopefully someone knows for sure? Id really not want the vp to be toast, but Id rather know to expect it, and get $$ together, than have a surprise 700 miles from home.
 
  #2  
Old 06-14-2008, 10:10 PM
Join Date: Mar 2007
Location: Western NC
Posts: 14,546
Received 843 Likes on 695 Posts
Default

U would need to boost fooler to keep the truck from De-Fueling.
 
  #3  
Old 06-15-2008, 05:17 AM
DB Admin's Avatar
Banned
Join Date: Mar 2007
Location: Perry Co. Ohio
Posts: 29,849
Received 3,297 Likes on 1,640 Posts
Default

Cut the line and stick a bolt in it with a hose clamp youll be fine to 35 Psi , if you do sticks and get your boost up over 35PSi you can drop it down by changing the exhaust housing , or get a new turbo , Personally I dropped Drive Pressures 10 PSI with the ATS intake and Exhaust Manifolds .

A Boost gauge is not a proper reading of turbo performance , your only seeing Pressure.

FWIW i have had over 50 PSI on my stock head 100+ times , it dont sound like a turbo anymore more like a vacuum cleaner
 
  #4  
Old 06-15-2008, 10:01 AM
Uncle Bubba's Avatar
BOMBARDIER
Join Date: Mar 2007
Location: Illinois?
Posts: 12,854
Received 1,112 Likes on 700 Posts
Default

Originally Posted by DieselMinded
Cut the line and stick a bolt in it with a hose clamp youll be fine to 35 Psi , if you do sticks and get your boost up over 35PSi you can drop it down by changing the exhaust housing , or get a new turbo , Personally I dropped Drive Pressures 10 PSI with the ATS intake and Exhaust Manifolds .

A Boost gauge is not a proper reading of turbo performance , your only seeing Pressure.

FWIW i have had over 50 PSI on my stock head 100+ times , it dont sound like a turbo anymore more like a vacuum cleaner
I wasn't gonna say anything because I just thought it was my imagination at work again, but since you brought it up. Now that I have the silicone boots, the 3pc exhaust manifold installed and all the boost leaks fixed my truck doesn't make near the pressures it used to. I know it still works cause I can hit 30 plus psi when I want to but I have to really be on it. In even normal hot roddin around town it's hard to hit 15psi anymore when I used to shoot right up to 30 just leavin a stop light. I have to assume it's just usin the psi more efficiantly now and doesn't need as much which is a good thing since more boost equals more fuel used.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stewart.william.c
24 Valve 2nd Gen Dodge Cummins 98.5-02
0
02-11-2015 01:39 AM
jrsavoie
Chevy/GMC 6.2L and 6.5L
1
02-06-2015 09:44 PM
chaoticape
Ford Powerstroke 03-07 6.0L
2
01-04-2015 05:35 PM
ash23k
Ford Powerstroke 03-07 6.0L
1
12-30-2014 08:31 PM
Tsgbk9
5.9 Liter CR Dodge Cummins 03-07
6
12-23-2014 11:54 AM



Quick Reply: Pinched Off Wastegate Hose, How Much Boost Should I See?



All times are GMT -5. The time now is 06:19 PM.