S65 boost guage and tires
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S65 boost guage and tires
Hey guys
So I was thinking yesterday that I would really like to get a small boost guage for my S65 just to see how much and when the boost comes on. I do not want it to really obvious and ugly just for my eyes only. Anyone have and suggestions on this?
I also was thinking about putting slightly wider tires in the rear and just want to make sure I don't open up a can of worms doing this. Any help would be greatly appreciated.
Thank You
Johan
So I was thinking yesterday that I would really like to get a small boost guage for my S65 just to see how much and when the boost comes on. I do not want it to really obvious and ugly just for my eyes only. Anyone have and suggestions on this?
I also was thinking about putting slightly wider tires in the rear and just want to make sure I don't open up a can of worms doing this. Any help would be greatly appreciated.
Thank You
Johan
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Joined: Nov 2014
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From: Chicago burbs
2015 S550
Hey guys
So I was thinking yesterday that I would really like to get a small boost guage for my S65 just to see how much and when the boost comes on. I do not want it to really obvious and ugly just for my eyes only. Anyone have and suggestions on this?
I also was thinking about putting slightly wider tires in the rear and just want to make sure I don't open up a can of worms doing this. Any help would be greatly appreciated.
Thank You
Johan
So I was thinking yesterday that I would really like to get a small boost guage for my S65 just to see how much and when the boost comes on. I do not want it to really obvious and ugly just for my eyes only. Anyone have and suggestions on this?
I also was thinking about putting slightly wider tires in the rear and just want to make sure I don't open up a can of worms doing this. Any help would be greatly appreciated.
Thank You
Johan
Try buying a Torque Mini OBD2 reader....and download the app to your phone. It will give you instant boost readings, as well as a host of other items. You can also read and clear trouble codes. The OBD2 reader is only around $8 shipped on Ebay.
For tires on the stock rims, I believe you can go to a 285/35/R20 that should fit fine on your stock wheels and give nearly the same ride height. They will be almost 1/2 inch wider.
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From: Maryland
Depends on the weather
I am going to add an inline boost gauge from under the hood. Boost from the OBD2 port is limited I think to 1.5bar and won't give anything past that. Do you know what your stock boost is? The stock S600 is 1 bar and I am thinking the S65 is 1.5 bar, hence the extra power.
Make sure you cut off or hammer in the metal tab inside the fender or you will get rubbing. It is where the bumper meets the quarter panel, you will see or feel it. I had to do that with my 285/35's.
Make sure you cut off or hammer in the metal tab inside the fender or you will get rubbing. It is where the bumper meets the quarter panel, you will see or feel it. I had to do that with my 285/35's.
Last edited by WHPH28; Jul 9, 2015 at 01:49 PM.
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From: Chicago burbs
2015 S550
I am going to add an inline boost gauge from under the hood. Boost from the OBD2 port is limited I think to 1.5bar and won't give anything past that. Do you know what your stock boost is? The stock S600 is 1 bar and I am thinking the S65 is 1.5 bar, hence the extra power.
Make sure you cut off or hammer in the metal tab inside the fender or you will get rubbing. It is where the bumper meets the quarter panel, you will see or feel it. I had to do that with my 285/35's.
Make sure you cut off or hammer in the metal tab inside the fender or you will get rubbing. It is where the bumper meets the quarter panel, you will see or feel it. I had to do that with my 285/35's.
No need to bend or cut any tabs with the stock wheels. 285's will fit in there just fine.
My torque app reads vacuum pressure perfectly from the OBD2 port. Max boost seems to be right at 16 psi under full throttle....with -23 at idle. Most tuners will push max boost to 18-19 psi and remap the fuel and air ratios to get those big HP gains in the S600.
Torque is a very cheap and effective way to monitor tons of different features in our cars....with lots of customizations available specific to our cars on the web. There's no need to buy any gauges or do anything else.
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From: Maryland
Depends on the weather
No need to bend or cut any tabs with the stock wheels. 285's will fit in there just fine.
My torque app reads vacuum pressure perfectly from the OBD2 port. Max boost seems to be right at 16 psi under full throttle....with -23 at idle. Most tuners will push max boost to 18-19 psi and remap the fuel and air ratios to get those big HP gains in the S600.
Torque is a very cheap and effective way to monitor tons of different features in our cars....with lots of customizations available specific to our cars on the web. There's no need to buy any gauges or do anything else.
My torque app reads vacuum pressure perfectly from the OBD2 port. Max boost seems to be right at 16 psi under full throttle....with -23 at idle. Most tuners will push max boost to 18-19 psi and remap the fuel and air ratios to get those big HP gains in the S600.
Torque is a very cheap and effective way to monitor tons of different features in our cars....with lots of customizations available specific to our cars on the web. There's no need to buy any gauges or do anything else.
I am going to have to pick up one of those!
Last edited by WHPH28; Jul 9, 2015 at 03:34 PM.
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From: Maryland
Depends on the weather
Are you sure that is an accurate#? Stock boost from these turbos is 1 bar...14.5psi. Tuned puts it between 18-19 safely with some going to 21.
S65 stock boost is 1.5 bar.
S65 stock boost is 1.5 bar.
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2015 S550
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Senior Member
Joined: Aug 2002
Posts: 372
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From: Honolulu, HI
06' E500 Estate, '08 S65, '05 S430
Hey fellow S65'ers. So, I'm kind of curious, what's the big deal on the gauge? Is it to ensure you're S65 is properly boosted?
There was a time when my S65 was somewhat low on power but one time it was an intermittent ignition coil and the other was resolved by a fuel injector power flush
Jeff
There was a time when my S65 was somewhat low on power but one time it was an intermittent ignition coil and the other was resolved by a fuel injector power flush
Jeff
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2007 Mercedes S320
http://www.ebay.co.uk/itm/2618648923...313%26_rdc%3D1
Did I buy the wrong one ? You any idea which blue tooth reader reliably works with W221 to give this data?
Thanks
MBWorld Fanatic!
Joined: Nov 2014
Posts: 1,560
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From: Maryland
Depends on the weather
Hey fellow S65'ers. So, I'm kind of curious, what's the big deal on the gauge? Is it to ensure you're S65 is properly boosted?
There was a time when my S65 was somewhat low on power but one time it was an intermittent ignition coil and the other was resolved by a fuel injector power flush
Jeff
There was a time when my S65 was somewhat low on power but one time it was an intermittent ignition coil and the other was resolved by a fuel injector power flush
Jeff
It's not a big deal...more just to know that you're turbos are working properly or if you are tuned, you can monitor, etc. Many things can contribute to low boost, but if you can monitor it and you see it's low, you know there is a problem somewhere...no biggie to have one, I doubt most people do.
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Joined: Nov 2014
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From: Chicago burbs
2015 S550
Hi Mate. I purchased an Mini Elm327 Bluetooth OBD2 for approx $10 from ebay for my 2007 W221 but it could not read the ECU, paired fine with phone and with Torque App but just no comms with ECU hence no readouts.
http://www.ebay.co.uk/itm/2618648923...313%26_rdc%3D1
Did I buy the wrong one ? You any idea which blue tooth reader reliably works with W221 to give this data?
Thanks
http://www.ebay.co.uk/itm/2618648923...313%26_rdc%3D1
Did I buy the wrong one ? You any idea which blue tooth reader reliably works with W221 to give this data?
Thanks
Member
Joined: Jun 2011
Posts: 93
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2007 Mercedes S320
That's the one I have and it works perfectly. Make sure it's seated properly. The red light on the device will be lit when it is. Your car must be turned on for it to work. After you start the torque app, you will need to wait for all of the blue symbols to stop blinking before it's ready. If none of that helps, you might need to make sure it's paired correctly. Finally, invest the $5 in the Torque Pro app.
Senior Member
Joined: Aug 2002
Posts: 372
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From: Honolulu, HI
06' E500 Estate, '08 S65, '05 S430
It's not a big deal...more just to know that you're turbos are working properly or if you are tuned, you can monitor, etc. Many things can contribute to low boost, but if you can monitor it and you see it's low, you know there is a problem somewhere...no biggie to have one, I doubt most people do.
BTW, do you have an LSD on your S65? Mine is quite traction limited with only one rear driven wheel
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From: Maryland
Depends on the weather
http://www.renntechmercedes.com/inde...376-400-detail
MBWorld Fanatic!
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From: Chicago burbs
2015 S550
I hit 17.5 psi of boost today. At least that's what my Torque Pro was reading. Been using Sams 93 Octane gas since I bought the car....which I know is not top tier gas like Costco, Shell, Mobil, etc. But I wonder if the 93 octane will push more boost than the guys stuck with 91?
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W221 S600, W220 S55 AMG Kompressor, W124 300E, W140 S320, W210 E3204M W164 ML320 Bluetec
93 should theoretically support more boost pressure than 91 octane fuel, because as the engine begins to knock, it starts retarding the timing and lowering the boost (ideally). There is a setting in Star Diagnosis in the ME2.7.2 to actually set the ECU to expect
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only the sl65 has lsd.
the rest of the v12tts are awesome one-wheel burnout machines interrupted only by the rear brake applied frantically by the esp to the spinning wheel in an effort to spin the other clueless wheel....
why the s/cl65 cars have no lsd- is a mystery to me
the rest of the v12tts are awesome one-wheel burnout machines interrupted only by the rear brake applied frantically by the esp to the spinning wheel in an effort to spin the other clueless wheel....
why the s/cl65 cars have no lsd- is a mystery to me
