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Junior Member
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Discussion Starter #1
Hey guys, I'm the new guy here. I want to give a few details then go from here. I currently have a 2002 6 speed that I use for work, I've never weighed the truck its self but I have had it on a few 12k lifts that wouldn't budge it (it's heavy!) and I pull a trailer fairly often thats also heavy with the gvwr at 18k. Currently I have an edge juice w/attitude stacked with a smarty, 4" exhaust and a BHAF. My boost maxes out at about 25psi and I would like to try to get that up to around 32 or so if possible. I'm wanting to try blocking my wastegate to see if it really makes a difference, but I'm having trouble finding it. I found what I think is it, and pulled and plugged a hose that I thought was right, but no extra boost. So right now I'm thinking either I got the wrong line (put it back now) or I'm just not getting enough fuel.

The truck has shown low fuel pressure for the past 3 years. With a brand new fuel filter my attitude monitor will show about 7-8 psi at idle and 0-1 psi WOT. Thats been for about 3 years now and although I did have a lift pump die about 2 years ago, no problems since so I'm thinking my fuel gauge may not work correctly.

I know this will be a long post, but I'm posting this for some advice and hoping that maybe someone will be able to point me to exactly where the wastegate is and what I would need to plug so that I can be positive I had it right. My next step with my truck (I believe) is to add new injectors along with either a FASS or Air Dog, and I'm wondering if with my weight and that amount I pull if a new turbo should be in the list? I'm not looking for a race work truck but of course I would like to have as much power as I could without risking the engine or other parts. Thats where I need help. You guys are much smarter than me when it comes to trucks!
 

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Alaskan Assassin
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88 Posts
I think it's underneath the turbo. A buddy of mine got a Banks Big Head on his '98-1/2 and you can see it through the wheelwell.
 

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Junior Member
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43 Posts
Discussion Starter #3
Okay I'm kinda giving myself a crash course on things here. My turbo is an HX35W, right by the plate telling me the model and such is a little elbow (right where the line running from the intercooler to the turbo comes in) with a hose running from it to a round cylinder which I'm guessing is the actuator? I plugged the hose after the elbow and before the cylinder, is that correct? Or should I be trying to adjust my boost by shortening? the arm coming out of the actuator?

I'm not mechanically inclined at all (if you can't tell, lol) on the knowledge side of anything here but when I know whats going on I can get by. Am I heading in the right direction here or have I once again jumbled different things I've read into one thing?
 

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Formerly CursedtoFirst45
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1,225 Posts
Tray27 said:
Hey guys, I'm the new guy here. I want to give a few details then go from here. I currently have a 2002 6 speed that I use for work, I've never weighed the truck its self but I have had it on a few 12k lifts that wouldn't budge it (it's heavy!) and I pull a trailer fairly often thats also heavy with the gvwr at 18k. Currently I have an edge juice w/attitude stacked with a smarty, 4" exhaust and a BHAF. My boost maxes out at about 25psi and I would like to try to get that up to around 32 or so if possible. I'm wanting to try blocking my wastegate to see if it really makes a difference, but I'm having trouble finding it. I found what I think is it, and pulled and plugged a hose that I thought was right, but no extra boost. So right now I'm thinking either I got the wrong line (put it back now) or I'm just not getting enough fuel.

The truck has shown low fuel pressure for the past 3 years. With a brand new fuel filter my attitude monitor will show about 7-8 psi at idle and 0-1 psi WOT. Thats been for about 3 years now and although I did have a lift pump die about 2 years ago, no problems since so I'm thinking my fuel gauge may not work correctly.

I know this will be a long post, but I'm posting this for some advice and hoping that maybe someone will be able to point me to exactly where the wastegate is and what I would need to plug so that I can be positive I had it right. My next step with my truck (I believe) is to add new injectors along with either a FASS or Air Dog, and I'm wondering if with my weight and that amount I pull if a new turbo should be in the list? I'm not looking for a race work truck but of course I would like to have as much power as I could without risking the engine or other parts. Thats where I need help. You guys are much smarter than me when it comes to trucks!
On your truck, your turbo is an hx35, There is a rubber hose on our trucks coming from the wastegate actuator to the turbo housing with a little elbow at the turbo housing. (Our) trucks with the rubber hose can use a boost elbow which replaces the elbow in the turbo housing and can plug the wastegate with an allen screw in there for earlier peak boost. You can pick up a boost elbow online, ebay or rig one up yourself.

And as for your fuel pressure...:damnit. You always want your fuel at wop to be above 10. Where is your sending unit mounted for that gauge?? If its functioning, you need another new lift pump, b/c your ip is taking a beating, and your at extreme risk of losing it($1600 repair). Im actually amazed it has lasted this long at 1psi at wot
 

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Formerly CursedtoFirst45
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1,225 Posts
Tray27 said:
Okay I'm kinda giving myself a crash course on things here. My turbo is an HX35W, right by the plate telling me the model and such is a little elbow (right where the line running from the intercooler to the turbo comes in) with a hose running from it to a round cylinder which I'm guessing is the actuator? I plugged the hose after the elbow and before the cylinder, is that correct? Or should I be trying to adjust my boost by shortening? the arm coming out of the actuator?

I'm not mechanically inclined at all (if you can't tell, lol) on the knowledge side of anything here but when I know whats going on I can get by. Am I heading in the right direction here or have I once again jumbled different things I've read into one thing?
Yes this is the actuator. To adjust boost, most people replace that copper fitting in the turbo housing with something called a boost elbow(around $15) and then hook up the rubber hose as is. It is easily adjustable so that you can raise or lower your boost with just an allen wrench. If your truck is stock, you wont see a difference in boost by pluggin the wastegate. Fill out your sig so we know what you are running. Oh and btw, welcome to TDG.
 

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Junior Member
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43 Posts
Discussion Starter #6
cursedtofirst45 said:
Yes this is the actuator. To adjust boost, most people replace that copper fitting in the turbo housing with something called a boost elbow(around $15) and then hook up the rubber hose as is. It is easily adjustable so that you can raise or lower your boost with just an allen wrench. If your truck is stock, you wont see a difference in boost by pluggin the wastegate. Fill out your sig so we know what you are running. Oh and btw, welcome to TDG.
Hmm, thats odd. I have my sig filled out. It shows in the first post but not in the second. I figured that fitting was where a boost elbow would go, but figured if a boost elbow would work then plugging the end of that line would too. Maybe I'm just maxed out on fuel until I get a chance to get an airdog or FASS put in, or maybe I just didn't plug the line well enough. I just shoved a bolt in the end of the rubber line (fit tightly) and took it on the hwy for a few then changed everything back when I saw no increased boost. I guess I'll find out soon enough. I called the only local diesel performance shop to see if they might have a boost elbow and see about getting a FASS put in, but they told me to increase boost I had a change my turbo. That combined with the fact that they were going to order the edge evolution for me, saying he had a guy with an 01 that ran it with his edge and loved it, tells me to stay far far away from there considering as far as I can tell they don't make an evolution for my truck.

Thanks for the replies guys. One more question, if this was your truck, weighing what mine weighs and pulling an 18k trailer, what size of injectors would you feel comfortable with considering I already have the Juice and Smarty stacked? I'm thinking some 75hp or so should make an improvement and still be fine?
 

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Formerly CursedtoFirst45
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1,225 Posts
:Thumbup:
Tray27 said:
Hmm, thats odd. I have my sig filled out. It shows in the first post but not in the second. I figured that fitting was where a boost elbow would go, but figured if a boost elbow would work then plugging the end of that line would too. Maybe I'm just maxed out on fuel until I get a chance to get an airdog or FASS put in, or maybe I just didn't plug the line well enough. I just shoved a bolt in the end of the rubber line (fit tightly) and took it on the hwy for a few then changed everything back when I saw no increased boost. I guess I'll find out soon enough. I called the only local diesel performance shop to see if they might have a boost elbow and see about getting a FASS put in, but they told me to increase boost I had a change my turbo. That combined with the fact that they were going to order the edge evolution for me, saying he had a guy with an 01 that ran it with his edge and loved it, tells me to stay far far away from there considering as far as I can tell they don't make an evolution for my truck.

Thanks for the replies guys. One more question, if this was your truck, weighing what mine weighs and pulling an 18k trailer, what size of injectors would you feel comfortable with considering I already have the Juice and Smarty stacked? I'm thinking some 75hp or so should make an improvement and still be fine?
oh sorry i guess i didnt see the sig the first time. By plugging the end of the line, you are omitting the wastegate, while with a boost elbow you arent. Technically, this process isn't raising boost or increasing it, it is giving you boost sooner by blocking the wastegate from opening too soon. The only way to gain alot of boost is to add more fuel, a bigger turbo is something that can handle the extra boost that you are then producing whereas your stock turbo is only operating efficiently under 32-35lbs of boost. I think some rv275's are good injectors considering your combo. However, i wouldnt start giving your truck any more fuel until you fix this fuel pressure problem. Stacking an evolution and juice would be pointless. The attitude adjusts timing and fuel while the evolution does timing, therefore you wouldnt see any gains. I dont even think its stackable. Best of Luck.
eric
 

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Senior Member
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454 Posts
Tray27 said:
Hmm, thats odd. I have my sig filled out. It shows in the first post but not in the second. I figured that fitting was where a boost elbow would go, but figured if a boost elbow would work then plugging the end of that line would too. Maybe I'm just maxed out on fuel until I get a chance to get an airdog or FASS put in, or maybe I just didn't plug the line well enough. I just shoved a bolt in the end of the rubber line (fit tightly) and took it on the hwy for a few then changed everything back when I saw no increased boost. I guess I'll find out soon enough. I called the only local diesel performance shop to see if they might have a boost elbow and see about getting a FASS put in, but they told me to increase boost I had a change my turbo. That combined with the fact that they were going to order the edge evolution for me, saying he had a guy with an 01 that ran it with his edge and loved it, tells me to stay far far away from there considering as far as I can tell they don't make an evolution for my truck.

Thanks for the replies guys. One more question, if this was your truck, weighing what mine weighs and pulling an 18k trailer, what size of injectors would you feel comfortable with considering I already have the Juice and Smarty stacked? I'm thinking some 75hp or so should make an improvement and still be fine?

HA You better start saving for a FASS and a VP44 Inj. Pump before the **** hits the fan. :CHITFAN: Your on borrowed time my friend until the Inj. Pump ceases up from low fuel pressure. turn off your chips for now so you do have some better fuel pressure. VP44 is gonna run you $1,600 with all the upgrades and bosch factory warrantee. FASS is gonna run you around $500. I know "BEEN THERE, DONE BOTH"!!!!!!:bang :popcorn:
 

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Junior Member
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Discussion Starter #9
cursedtofirst45 said:
:Thumbup:

oh sorry i guess i didnt see the sig the first time. By plugging the end of the line, you are omitting the wastegate, while with a boost elbow you arent. Technically, this process isn't raising boost or increasing it, it is giving you boost sooner by blocking the wastegate from opening too soon. The only way to gain alot of boost is to add more fuel, a bigger turbo is something that can handle the extra boost that you are then producing whereas your stock turbo is only operating efficiently under 32-35lbs of boost. I think some rv275's are good injectors considering your combo. However, i wouldnt start giving your truck any more fuel until you fix this fuel pressure problem. Stacking an evolution and juice would be pointless. The attitude adjusts timing and fuel while the evolution does timing, therefore you wouldnt see any gains. I dont even think its stackable. Best of Luck.
eric

I'm not really trying to get a lot of boost, I'd just like to get max efficiency out of what I have. Right now 25-26 psi is max, and I figure considering from what I have read the HX35w is good for the 32-35 lbs I'd like to have it running around 32 lbs. If I'm thinking right, that should help keep my egt's lower plus give me a little more power? I'm really thinking I might need to check my gauge connections on the fuel pressure. Like I say those pressures have been like that for over 2 years, even after a new lift pump. My truck rolls tons of black smoke, which I would think means it's getting plenty of fuel? As far as the juice and evolution, I asked the guy at the diesel shop about it because I hear the ford guys are stacking them with great success.
 

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Junior Member
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Discussion Starter #10
Cumminsdude2001 said:
HA You better start saving for a FASS and a VP44 Inj. Pump before the **** hits the fan. :CHITFAN: Your on borrowed time my friend until the Inj. Pump ceases up from low fuel pressure. turn off your chips for now so you do have some better fuel pressure. VP44 is gonna run you $1,600 with all the upgrades and bosch factory warrantee. FASS is gonna run you around $500. I know "BEEN THERE, DONE BOTH"!!!!!!:bang :popcorn:
I appreciate your concern on the VP as I have been concerned about it myself for a while, however I get the old 'well it's still working after a couple of years" mentality and think the pressure my attitude shows either has to be incorrect, or that VP is one tough son of a gun. Considering I use my truck for work I really don't have the time to do anything about it right now, and if my VP does happen to die, well I can part with the $1600 or so and I won't have a choice but to make the time. After reading about FASS customer service I'm really leaning toward the airdog, which should happen within the next couple of months if I'm lucky and get a few days...
 

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Senior Member
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454 Posts
Tray27 said:
I appreciate your concern on the VP as I have been concerned about it myself for a while, however I get the old 'well it's still working after a couple of years" mentality and think the pressure my attitude shows either has to be incorrect, or that VP is one tough son of a gun. Considering I use my truck for work I really don't have the time to do anything about it right now, and if my VP does happen to die, well I can part with the $1600 or so and I won't have a choice but to make the time. After reading about FASS customer service I'm really leaning toward the airdog, which should happen within the next couple of months if I'm lucky and get a few days...


I have a FASS 95GPH and I am happy with it. Air Dog and FASS are very simalar, or pretty much the same. What ever one you choose you will be much happier than the factory lift pump so you can't lose. But.... When it comes time to do your injection pump I recomend you go with Blue Chip/ bluechipdiesel.com. I got my VP44 From there and thats all they deal with is VP44's. Comes with all the upgrades and a 1 Year warrenty direct from Bosch.
 

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Formerly CursedtoFirst45
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1,225 Posts
Tray27 said:
I'm not really trying to get a lot of boost, I'd just like to get max efficiency out of what I have. Right now 25-26 psi is max, and I figure considering from what I have read the HX35w is good for the 32-35 lbs I'd like to have it running around 32 lbs. If I'm thinking right, that should help keep my egt's lower plus give me a little more power? I'm really thinking I might need to check my gauge connections on the fuel pressure. Like I say those pressures have been like that for over 2 years, even after a new lift pump. My truck rolls tons of black smoke, which I would think means it's getting plenty of fuel? As far as the juice and evolution, I asked the guy at the diesel shop about it because I hear the ford guys are stacking them with great success.
A boost elbow will help you do this.

check out vulcan performance, they have speedy shipping and i think its like 15 from them. Yeah id probably check your fp connectors. Maybe theres a clog in the line or something?
 

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Junior Member
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43 Posts
Discussion Starter #13
I ordered a boost elbow today so when it arrives I'll know more, but sadly I'm thinking that it probably won't help. Isn't crimping the hose with vice grips basically accomplishing the same thing? I tried that today and although it seems like I might get up to 24-25psi sooner, it doesn't get over that. At this point I'm not sure if it's fuel or my wastegate :( I guess when I get the extra fuel I'll know for sure.
 

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Formerly CursedtoFirst45
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1,225 Posts
well, once your at higher rpm and your boost is that high, your lp may not be supplying enough fuel therefore its kinda cutting out imo. You can get your fuel pressure tested without an fp gauge. Most auto shops will have one if you dont want to buy one. As for plugging that rubber hose, i dont think that will help you get more boost because that pressure in that line is never making it to the housing, whereas with an elbow, itll get there but just take a little longer by creating a small boost leak.
 
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