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#31
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I cannot fathom how any chip can affect a mechanically injected engine's HP or torque... Above idle...
The 98/99 still uses a mechanically injected engine... Did the guy do anything to the injectors or pump timing?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#32
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It must be playing with the response curve of the IP rack actuator, inhibiting the operation of the EGR, and delaying opening the waste gate.
These are the only points that can influence the operation of this engine. The 606 turbo engine vacuum system is very simple, with two vacuum transducers, one for the EGR and one for the waste gate. No vacuum shutoff (it's electrical), and no transmission vacuum control (this is done by CAN bus to the electronic transmission controller).
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The OM 642/722.9 powered family Still going strong 2014 ML350 Bluetec (wife's DD) 2013 E350 Bluetec (my DD) both my kids cars went to junkyard in 2023 2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles) 2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles) 1998 E300DT sold to TimFreeh 1987 300TD sold to vstech |
#33
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No...all he did was replace two chips.
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles 06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#34
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so likely he shifted around the HP and Torque numbers by changing the defuel map and turbo wastegate dump... I can see that affecting the seat of pants meter...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#35
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I don't doubt HP gains which are relatively easily achieved by overriding the conservative boost management. The ECU must be able to influence the full load stop because otherwise swapping a pressure wastegate actuator for the devil's own vacuum actuator is half the battle.
Until there's better information, I'll assume the mpg projections are for their chips in general, not specific to this application. Sixto MB-less |
#36
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Quote:
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#37
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I am going to continue to monitor mileage for a couple of months, filling up at the same station. Then I will give him a call to ask some questions.
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles 06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#38
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I went through this discussion with a different chip maker (or two) years ago when they were claiming steep power gains on a 500E. I eventually got a guy who admitted their charts are based on "average gains for that type of motor" and that it was not accurate for the 500E specifically. I was shocked at the honesty, but also don't think they removed their listing/info for the 500E chip (can't remember - they may have). Quote:
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#39
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BTW if a customer is dissatisfied for any reason they'll do the next stage up for free.
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles 06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#40
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#41
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Why yes, in fact. There are Stages 1, 2, 3, 4, and 5! But, in order to benefit from higher stages, there would have to be hardware modifications (e.g. exhaust). So, I don't think I could realize any benefit from a Stage 3 tune. Rocketchip did make the point that Stage 2 is what most people typically do and what they would recommend if I didn't plan on other mods (which I don't).
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles 06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#42
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That is about the limit of what the stock 6mm elements can deliver. Exhaust, intercooler, and other mods will not increase power unless you have the IP modified at considerable expense (like, $2k plus the 5-6 hours labor to R&R the pump). If they are claiming bigger gains with just a chip and the stock pump, that is definitely out of line. |
#43
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BTW, those folks on VW boards are FANATICS....not normal folks like us MB owners. haha
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles 06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#44
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles 06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#45
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How many data points could he have collected in a month?
Sixto MB-less |
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