I tested my 617 turbo and found it was only making 8 psi of boost max.

I built a manual boost controller, see: The"D.I.Y."Manual Boost Control and installed it on long hoses so I could adjust in in the cabin while driving.

I set it to 13 -13.5 psi max boost at 4000 rpm. Is that too much boost?

I then adjusted the ALDA top screw (the tamper seal was already broken) out another 1/3rd turn, so the screw was all the way CCW, and stopped. This adjustment made an obvious improvement in power.

It doesn't make any black smoke, so I could shim the ALDA and readjust the top screw for even more power.

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1st MBz: 1982 300SD
2nd MBz: 1987 300SDL
3rd MBz: 1995 S420
4th MBz: 1987 190DT
5th MBz: 1984 300SD w/1983 300DT engine
6th MBz: 1999 C230k I'm 3rd owner, got it w/57,235 miles.
and manages Mom's 2007 R320 CDI

I think that is about what it should have.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

If the set screw is all the way CCW, are you confident that there are any more ALDA-related gains to be had? My impression (I could be mistaken) is that having the set screw all the way CCW has the same as having no ALDA.

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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

Some People remove the ALDA.

As you noted the extra Boost is no good withoug extra Fuel. If you keep adding both it is a good Idea to install a Pyrometer so you can monitor your Exhaust Gas Temps. After X Exhaust Gas Temp it gets hard on the Engine.

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84 300D, 82 Volvo 244Gl Diesel

hell I hit over 22psi all the time,been doing it 3 years,no problems.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

Thank you for the advice. I'm not looking for ultimate performance.

I think I will keep it as it is for now. It runs good and accelerates much better than before. I'll wait to see how the mpg has changed before doing more.

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.
1st MBz: 1982 300SD
2nd MBz: 1987 300SDL
3rd MBz: 1995 S420
4th MBz: 1987 190DT
5th MBz: 1984 300SD w/1983 300DT engine
6th MBz: 1999 C230k I'm 3rd owner, got it w/57,235 miles.
and manages Mom's 2007 R320 CDI

What kind of EGT's are on that? Is that absolute or relative?

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http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I only hit 20 while my slush box flares into gear. My KKK k26 normally sees 14-15... I need to crank her down to 12.5 though... I can smell my EGT's.

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1981 300TD 4 speed manual
Euro bumpers, zender valance and skirts, H&R springs, billy HD's, leveled sls, real AMG Pentas 16x8 et11, vdo boost/egt gauges intergrated into ash tray, eurolights, led 3rd brake light

No its real boost,but I try and hold pedal to 14 which is a safe psi.When I propane injection to provide more fuel,i'll run higher.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran