30lb of boost on 38R

[ChunderDownUnder]

leak test with turbo intact also, just to rule out o rings and housings.

shall do.
In regards to the dyno. Like I mentioned it was my first time and didnt really ask the questions I should of. Want to make sure I dont repeat that again. What do I need from my dyno. eg. a certain type. load etc.

 

[lincolnlocker]

what kind of dyno?

live life full throttle

 

[ChunderDownUnder]

what kind of dyno?

live life full throttle

theres different types, isnt there ???
or am I just looking for a "Load Dyno" ??

 

[Gearhead]

get a buddy to film the tailpipe and go flog it down the road to see what boost does in 3rd gear on up.

 

[ChunderDownUnder]

get a buddy to film the tailpipe and go flog it down the road to see what boost does in 3rd gear on up.

now that sounds like fun. Shall do Matt

 

[Charles]

If you want to make boost, go find a load cell. If you want to see how much power you make compared to others in a way that's immune to BULLsh*t.... then go find a Dynojet 248 inertia machine and make UNCORRECTED pulls in OD.

 

[ChunderDownUnder]

Just did a leak test through the intake with everything back in. It will leak down but it is very slow ??

 

[907DAVE]

Yup. The piston rings on the cylinders with the valves open will leak down.

 

[lincolnlocker]

can you hear it leak down? did you spray soapy water all over everything?

live life full throttle

 

[DocBar]

shall do.
In regards to the dyno. Like I mentioned it was my first time and didnt really ask the questions I should of. Want to make sure I dont repeat that again. What do I need from my dyno. eg. a certain type. load etc.

Did the same thing at Bill's shop last summer. won't do it again.

 

[ChunderDownUnder]

well im stuffed.
after doing all that and putting in the WWII Im struggling to hit 15lbs boost now and my EGT's are through the roof. Have checked everything and it looks right. I had to replace my Map Sensor as well. Cracked the original while doing all this.

 

[ChunderDownUnder]

charged the intake again and sprayed at will. No bubbles.
Superglued my old map sensor and blew some air and no bubbles, so i put it on and went for a spin. Still the same .10-15lbs of boost and I can hit 1200 Egts before it gets into 3rd. Weird thin tho, it aint blowing smoke.

 

[Chvyrkr]

How's fuel pressure?

 

[ChunderDownUnder]

How's fuel pressure?

60psi and steady

 

[lincolnlocker]

so you went from 30psi to 15psi?

 

[1ofakind79]

That seems like a big drop. Most people that installed the WW2 gained boost or atleast maintained the same amount they had before.

 

[lincolnlocker]

That seems like a big drop. Most people that installed the WW2 gained boost or atleast maintained the same amount they had before.

thats not even close to the problem here... something is way ***ed up.

 

[jngreen]

charged the intake again and sprayed at will. No bubbles.
Superglued my old map sensor and blew some air and no bubbles, so i put it on and went for a spin. Still the same .10-15lbs of boost and I can hit 1200 Egts before it gets into 3rd. Weird thin tho, it aint blowing smoke.

If its not blowing smoke, its not fueling like it should. I bet its the map sensor. I once had a crack in the line going to the map sensor, and itade it run exactly how you are describing.

 

[David N]

The clamp uppipes are 100% lined up and that clamp is tight? If so Im stumped.

 

[jngreen]

The clamp uppipes are 100% lined up and that clamp is tight? If so Im stumped.

It should be smoking quite badly if he had a drive pressure or boost pressure leak. It sounds like to me that the truck is not fueling to its full potential. I would start with sensor issues, pcm, injectors, tuning, etc.