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#31
10-02-2008, 06:57 PM
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Exhaust water injection pre-turbine has been done successfully. The downside seems to be (in theory) that the water droplets will damage the turbine blades.
Quote:
__________________
 Gone to the dark side - Jeff 
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#32
10-23-2008, 01:51 AM
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Found this thread, and wanted to send some info your way about the direct injection of water
http://forums.tdiclub.com/showthread.php?t=202520 Also, the injection of water after the turbo has been used for PWC, and MSD makes a kit. It is a way of tuning exhaust.
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#33
10-23-2008, 03:41 AM
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The extra power comes from burning the alcohol, not steam expansion. Straight water adds no power at all except cooler intake temps.
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#34
10-25-2008, 02:11 AM
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Finished the machining and assembly tonight...took forever but it was worth it
 McMaster-Carr for parts, came out to around $80; then forever in the shop: cleaning the manifold tapping the manifold threading the injectors making the adapters assembling The temperature gauge is from a Ford Explorer(Had to stick something on the EGR plate, right? I'll be using a shurflo 150psi pump to power it. More later on......
__________________
$60 OM617 Blank Exhaust Flanges $110 OM606 Blank Exhaust Flanges No merc at the moment
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#35
10-25-2008, 05:01 AM
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Thats going to have uneven distribution. The last cylinder is going to be very rich compared to the rest.
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#36
10-25-2008, 07:40 AM
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How so? The other ports feed 2 cylinders so they are running 2gph each, wouldn't it be best to run 1gph for the last cylinder?
__________________
$60 OM617 Blank Exhaust Flanges $110 OM606 Blank Exhaust Flanges No merc at the moment
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#37
10-25-2008, 07:42 AM
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Unless the nozzles extend into the runners, the turbulent airflow in the manifold will blow the vapor around.
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#38
10-25-2008, 07:47 AM
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It looks great! Don't let the negativity get you down. I don't think you'll have cylinder imbalance problems. Keep us posted on further developments, and thanks for pushing the envelope a little further.
__________________
Bob D. Parrish, FL 1 SDL, 1 D, 1 TD, 1 Mog
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#39
10-25-2008, 07:51 AM
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Its not "negativity", its reality.
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#40
10-25-2008, 08:03 AM
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FI, what would you suggest to do differently? You know a lot more about the 617 than I do(I've only had her since April 08)
__________________
$60 OM617 Blank Exhaust Flanges $110 OM606 Blank Exhaust Flanges No merc at the moment
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#41
10-25-2008, 08:11 AM
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Port injection. (Since you clearly are not going to use the stock air cleaner) Instead of 3 at the top of the manifold, I'd put a 1gph nozzle at each port on the front (see the red dots). #1 would be somewhat tricky given the proximity to the turbo and the manifold mouth placement. Although a long nozzle or extension going through the EGR port pointing to the #1 runner could work.
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#42
10-25-2008, 07:46 PM
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What you have done is great for a initial step. Go ahead and try it out to gather data on your concept. tweak it a step at a time and once you have learned a bit more, share it with the rest of us and if you are still feeling inspired make a more refined unit.
__________________
Bob D. Parrish, FL 1 SDL, 1 D, 1 TD, 1 Mog
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#43
10-26-2008, 12:00 PM
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you could get a w115 intake and put your injectors in it.
__________________
'82 Euro MB 300 D Turbo Silver/Blue - Fixed Adding W115 Intake and Intercooler 1986 Chevy Camaro Cp 400HP For Sale Engineer Tuscaloosa, AL
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#45
01-12-2009, 11:06 PM
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I've blocked it off and am building a new manifold:
  My friend Nick did the welding.
__________________
$60 OM617 Blank Exhaust Flanges $110 OM606 Blank Exhaust Flanges No merc at the moment
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