Help a damsel distressed with '99 300TD - Page 11 - PeachParts Mercedes-Benz Forum

aklim · #**151** 02-05-2009, 01:38 PM

Quote:

Originally Posted by TMAllison

I suppose it is possible it is chipped, but don't think so personally as I ought to have been able to get some smoke out of it at WOT and it should have pulled harder IMO as well. But, I have never driven a chipped E300 so I suppose it remains a posibility.

Mine was done at SpeedtuningUSA and on hard acceleration, you can blow some black smoke. They told me that it could be "fixed" by setting a higher pressure for the turbo wastegate but that is a different story. It does pull harder than stock because at stock level, the wife was not thrilled with it. Now she is a little more satisfied.

Anthony Cerami · #**152** 02-07-2009, 09:40 AM

TMAllison,
I recently installed a Borla exhaust system on my car ..... The old system was badly deteriorated ..... After cutting the pipes and muffler open I found that the baffles inside had collapsed. ....This certainly would contribute to poor mileage. As for the pipe .... The inside of the pipe and the old muffler for that matter had no excessive buildup of soot.....
Aklim,
The folks at SpeedtuningUSA (Oliver) are great! My 99 VW jetta is chipped and it gets 53 miles to the gallon and runs like ten men going to a fire!
The increase in horsepower and torque actually increases economy!
I believe it went from 90 to 115 HP
The same rules apply to our 606 Diesels. If you look at the torque and horsepower curves, where they intersect is peak performance and best economy. No doubt you will benifit from a chip or a power box. Since I average around 36 MPG I suspect you could get 40 with no problem.
I commute over 200 miles to work every day and drive at 65 MPH

aklim · #**153** 02-07-2009, 11:41 AM

Quote:

Originally Posted by Anthony Cerami

Since I average around 36 MPG I suspect you could get 40 with no problem. I commute over 200 miles to work every day and drive at 65 MPH

I was THEORETICALLY getting 33 mpg at 85 mph if you don't romp on it too often. OTOH, because of the increased power I tend to ROMP on it now and then, oh what the hell, I cruise now and then. I never exceed the speed limit. Not that I would admit to anyways. And if you believe that, I have this bridge in NY to sell you.

hobbitss · #**154** 02-07-2009, 11:57 AM

Quote:

Originally Posted by aklim

I was THEORETICALLY getting 33 mpg at 85 mph if you don't romp on it too often. OTOH, because of the increased power I tend to ROMP on it now and then, oh what the hell, I cruise now and then. I never exceed the speed limit. Not that I would admit to anyways. And if you believe that, I have this bridge in NY to sell you.

So getting a Chip upgrade will improve performance and efficiency???

aklim · #**155** 02-07-2009, 12:56 PM

Quote:

Originally Posted by hobbitss

So getting a Chip upgrade will improve performance and efficiency???

Yes it will. However, there are many factors that will affect mpg. I could go 600 miles on a full tank easy. Usually 650. OTOH, using fuel from a certain station, I could only go high 500s. Change fuel and mpg improves. Change back and mpg drops. Another thing that affects mpg is your right foot. Keep romping on it and mpg goes down. Chip will help IF you can drive like you have an egg between your right foot and the pedal

Anthony Cerami · #**156** 02-07-2009, 01:45 PM

hobbitss,
Yes Joe ....The way that the chip works ...It "adjusts" the signal from the MAF sensor together with advancing the injector timing waste gate and .....
Ughhh UGhhh Ughhh MORE POWER!!
I believe SpeedtuningUSA offers two versions for our cars...One is a Hang on power box...the other is modifying the PCM. The chip is permanently reprogrammed. The chip Mod yields more power...

aklim,
As you said ..the right foot is the big one "drive like you have an egg between your right foot and the pedal "

Tire pressure 35 to 40 PSI some newer tires have increased pressures up to 51 PSI Max. (Rolling drag)
Clean filters (No difference with a K&N Filter)
Diesel Purge (LM) Optional (Clean Injectors)
Larger exhaust ...(Less restrictive)
Belts (friction)
Oil change (friction)
Alignment (drag / tire wear )
Brakes (drag)
All these factors equal a little extra MPG
Tire pressure rotation and alignment Equal ...
Just a side note:
I just replaced my Michilin Energy MXV4 with 104,000 miles on them ...

aklim · #**157** 02-07-2009, 01:56 PM

Quote:

Originally Posted by Anthony Cerami

I believe SpeedtuningUSA offers two versions for our cars...One is a Hang on power box...the other is modifying the PCM. The chip is permanently reprogrammed. The chip Mod yields more power...

Tire pressure 35 to 40 PSI some newer tires have increased pressures up to 51 PSI Max. (Rolling drag)

Diesel Purge (LM) Optional (Clean Injectors)

Larger exhaust ...(Less restrictive)

I just replaced my Michilin Energy MXV4 with 104,000 miles on them ...

If there are two versions and one of them is more powerful, which do you think I got?

48 on the rear cold.

I cleaned and tested the injectors and had them set to 145 bar every 100K. I don't use any other additives or cleaner. Never believed in them. At 200K I changed over to Bosio nozzles. Cold acceleration gives me 2 whines. A Turbo while and another whine since the injectors came in.

Thinking of having the cat cut off. Also used some aftermarket exhaust.

Mine were done at 80K

nhdoc · #**158** 02-07-2009, 03:05 PM

Timely subject...I just sent my ECU to speedtuning for their stage 2 chip upgrade which is supposed to boost HP by up to 60 and torque by up to 100 NM. I can say that the powerchip in my C43 increases both power and economy so I am hoping the same result will come from chipping the E300...even if it is just an increase in power it will be OK though

I find after driving the C43 the E300 is just too lazy...

I also have a full set of brand new injectors I will install after I do the chip upgrade...but I want to change one at a time to see what effect each has.

hobbitss · #**159** 02-07-2009, 08:22 PM

Quote:

Originally Posted by aklim

Yes it will. However, there are many factors that will affect mpg. I could go 600 miles on a full tank easy. Usually 650. OTOH, using fuel from a certain station, I could only go high 500s. Change fuel and mpg improves. Change back and mpg drops. Another thing that affects mpg is your right foot. Keep romping on it and mpg goes down. Chip will help IF you can drive like you have an egg between your right foot and the pedal

Excellent... Another thing to put on the list of future Mod's... We'll have to wait for Marty to give a report on the differences between stage one and stage two Chips...
I already drive with a Scangauge II and watch my real time economy etc., tires are kept in the high 30s to low 40s and I cleaned out the intake manifold last spring when I had to remove the IM to replace a fuel line.. During the summer I've been getting in the low 600s per tank and this time of year I'm getting in the high 500s sometimes making the 600 mark... Mixed highway and city / stop & go commuter crawl...
Occasionally I stomp on it to mix with traffic and get to see a little bit of light grey smoke... Waiting for the Digital EGR Delete Kits...

hobbitss · #**160** 02-09-2009, 09:00 AM

Did we loose PinDoc1???
Wondering what the latest results are...

KarTek · #**161** 02-09-2009, 09:22 AM

Yeah, you guys should discussing chipping in the Performance Diesel section...

nhdoc · #**162** 02-10-2009, 03:00 PM

Quote:

Originally Posted by hobbitss

Excellent... Another thing to put on the list of future Mod's... We'll have to wait for Marty to give a report on the differences between stage one and stage two Chips...
I already drive with a Scangauge II and watch my real time economy etc., tires are kept in the high 30s to low 40s and I cleaned out the intake manifold last spring when I had to remove the IM to replace a fuel line.. During the summer I've been getting in the low 600s per tank and this time of year I'm getting in the high 500s sometimes making the 600 mark... Mixed highway and city / stop & go commuter crawl...
Occasionally I stomp on it to mix with traffic and get to see a little bit of light grey smoke... Waiting for the Digital EGR Delete Kits...

I am reporting a preliminary level of success and pleasure with the chip upgrade. Oliver at Speedtuning returned my ECU and I installed it this morning. I just returned from about 40 miles of driving. The tank was about 1/4 when I left and so I took the opportunity to fillup and drive around about an hour. The prior tank registered an average of 26 MPG over about 425 miles of driving and all but about 5-10 miles of that was prior to installing the modded chip.

After filling I reset the scangauge and drove for about an hour in mostly suburban stop and go driving returning home after driving just over 30 miles since filling up. The scangauge showed an impressive 30.4 MPG on this tank so far. I will temper this with the fact that it is possible the scangauge's accuracy was affected by the reprogramming of the ECU and I won't know whether that is the actual mileage or not until I refuel again. But assuming it is correct I would say there is a definite improvement in fuel economy since I have not seen near 30 MPG since the cold weather set-in and even in the warmer weather 30 MPG in city driving was a stretch for me.

Now, enough with the boring MPG stats...the car is much peppier with the chip mods. On dry pavement, I can nail the pedal and by the time the tach hits 2500 RPM the traction control has to keep the rear wheels from spinning. That's something this car never did before. It pushes you back in your seat. I didn't try shutting off the traction control but I am guessing if I did I could literally burn rubber with it. It's also a much more pleasant car to merge onto the highway with, especially on the shorter on-ramps we have around here. Not that it was particularly slow before, it just took WOT to bring it up to merging speed in the past and now you can just push it about halfway and really feel it pull. I did all of these tests before I filled the tank so the 30.4 MPG was based more upon a normal driving style than the lead-footed testing which probably would have resulted in some lower stats.

All in all I am pleased so far with the results. I opted for the stage 2 power chip plus some an additional tweak that raised the price another $50 so the total cost with return shipping was about $400. But the smile it puts on your face is priceless.

I'm taking a 600 mile road trip this weekend and will report back on highway mileage then and then next week will install my new set of injectors and test again. Like I said, so far so good!

aklim · #**163** 02-10-2009, 03:49 PM

I guess I told you so, Marty. With the chip, I can actually hear the turbo whine. My mechanic with the same car and without the chip runs silently. With the Bosio injectors I can even hear a 2nd whine.

hobbitss · #**164** 02-12-2009, 09:37 AM

Very encouraging preliminary report Marty!!!!
Looking forward to your road trip results...

Did we lose PinDoc1??

pindoc1 · #**165** 02-17-2009, 10:46 PM

I dropped off from the constant MPG worry for a bit but I'm back. I have taken your suggestion Terry and NOT taken it to the truck mechanic. I need to re-read the last posts on the "chips" , not a clue

what they are at this point.

Do they have that shop you mentioned out here? Is it a performance shop? I'm really not into getting more power (must be a guy thing) but I would like to get the kind of MPG's you all are talking about.

I did find a new tire shop and will take it in and get the tires rotated & nitrogen pumped.

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