New Turbo Set-Up...
07-22-2010, 05:43 PM
#76
My new new clamp is here now... I gotta put that on... and then we're gonna find this boost leak.
Then the shenanigans can begin.
Sounds like a plan.
I was just gonna have the wife watch the boost gauge. Its a Mechanical gauge... so it'll work with the motor off.
Then the shenanigans can begin.
I was just gonna have the wife watch the boost gauge. Its a Mechanical gauge... so it'll work with the motor off.
07-22-2010, 06:26 PM
#77
Premium Member
ya I meant wastgate I was distracted when I typed it.
07-23-2010, 04:03 AM
#79
Did a pressure check of the whole system... only found one leak. I'm pretty sure its one of my injectors seals... and I'm pretty sure I've had it for a while. Iono. I was using a small tank and could only get 10psi... but that's the only leak I heard. I wanna get it on a bigger compressor later on, if I can.
Didn't really play with the car too much after that. Fooling around, I managed to hit full boost at 4k in 4th earlier today. Iono what's up with the thing. I'm going to take off the Compressor Cover tomorrow and check the O-Ring. If I brake boost the thing at 3500... it'll build 10-15psi... and then shoot to 20 as soon as I let off the brake. I don't know what its deal is.
I'm gonna do a Compression Check on Monday. We'll see how that turns out.
Didn't really play with the car too much after that. Fooling around, I managed to hit full boost at 4k in 4th earlier today. Iono what's up with the thing. I'm going to take off the Compressor Cover tomorrow and check the O-Ring. If I brake boost the thing at 3500... it'll build 10-15psi... and then shoot to 20 as soon as I let off the brake. I don't know what its deal is.
I'm gonna do a Compression Check on Monday. We'll see how that turns out.
07-23-2010, 03:41 PM
#80
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easy way to find a vaccume leak.... get TB cleaner, start spraying it, and the engine will rev up when it gets in the system, then you know where the leak is 
07-26-2010, 02:44 AM
#89
Somewhere along the line... I fixed something. 3rd gear is hitting full boost at 4250... and 4th at 4000. That's still later than it should be hitting... but that's better than 5000 and 4600.
I've picked up a noticeable amount of HP in the last week with whatever it is that I fixed. Much harder to keep the power to the ground in 2nd... and the shifts are coming much faster in 3rd and 4th gears. Of course... I do all my testing at night. Turbo love the cool air.
- - - - -
There is still something not right though. The only difference in size between this turbo (Billet HP5557E - Ball Bearing) and my last one (SCM5031E - Journal Bearing)... is that the Compressor Inducer is 1mm larger (.047" larger) and the Exducer is 1mm smaller (.050" smaller). The turbines are basically the same size... but the 5557 has better Aerodynamics, iirc (same applies to the Compressor Wheel... better all around). Then factor in Ball Bearing + Billet wheel. Where's MY Profit?
The intercooler does have a bit more volume to fill:
-Old I/C: 18"x6"x3.5" (378 Cu/In)
-New I/C: 25" x 7" x 3" (525 Cu/In)
...for a difference of 147 Cu/In. But the new piping more than makes up for that.
-Old Cold-side Set-Up: 339.4 Cu/In
-New Cold-side Set-up: 203.8 Cu/In
-Old Hot-side Set-up: 304.5 Cu/In
-New Hot-Side Set-up: 265.2 Cu/In
Old Piping Set-Up Total: 643.9 Cu/In
New Piping Set-up Total: 469 Cu/In
Difference of 174.9 Cu/In...
Now, I'm no master at Flow Dynamics... or Quantum Theory/Leaping... or anything like that. I'm just doing simple math to find out the volume of the Cube (I/C) and the Cylinder (Piping). And those numbers, obviously, aren't 100% accurate. In real life... there isn't that much volume to the I/C... because its not a solid cube of volume for the air to pass through. But the piping volume is fairly accurate... as I measured out the length of my piping. I might need to double check... but I'm pretty sure my numbers were accurate.
I've picked up a noticeable amount of HP in the last week with whatever it is that I fixed. Much harder to keep the power to the ground in 2nd... and the shifts are coming much faster in 3rd and 4th gears. Of course... I do all my testing at night. Turbo love the cool air.
- - - - -
There is still something not right though. The only difference in size between this turbo (Billet HP5557E - Ball Bearing) and my last one (SCM5031E - Journal Bearing)... is that the Compressor Inducer is 1mm larger (.047" larger) and the Exducer is 1mm smaller (.050" smaller). The turbines are basically the same size... but the 5557 has better Aerodynamics, iirc (same applies to the Compressor Wheel... better all around). Then factor in Ball Bearing + Billet wheel. Where's MY Profit?
The intercooler does have a bit more volume to fill:
-Old I/C: 18"x6"x3.5" (378 Cu/In)
-New I/C: 25" x 7" x 3" (525 Cu/In)
...for a difference of 147 Cu/In. But the new piping more than makes up for that.
-Old Cold-side Set-Up: 339.4 Cu/In
-New Cold-side Set-up: 203.8 Cu/In
-Old Hot-side Set-up: 304.5 Cu/In
-New Hot-Side Set-up: 265.2 Cu/In
Old Piping Set-Up Total: 643.9 Cu/In
New Piping Set-up Total: 469 Cu/In
Difference of 174.9 Cu/In...
Now, I'm no master at Flow Dynamics... or Quantum Theory/Leaping... or anything like that. I'm just doing simple math to find out the volume of the Cube (I/C) and the Cylinder (Piping). And those numbers, obviously, aren't 100% accurate. In real life... there isn't that much volume to the I/C... because its not a solid cube of volume for the air to pass through. But the piping volume is fairly accurate... as I measured out the length of my piping. I might need to double check... but I'm pretty sure my numbers were accurate.
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