55 amg performance + mpg gain possible?
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55 amg performance + mpg gain possible?
Hi
As title indicates, what performance mods have you done to your car and did you notice a gain or reduction in mpg?
Some of you will probably say this is a stupid question and I should buy a prius or something. Well, dont bother.
So I thought why not try to improve both hp and mpg.
* Tune?
* Headers? Makes sense to increase mpg in daily driving due to less resistance?
* SC pulley or crank pulley?
Or any other performance mod you noticed an mpg gain from?
thanks
and yes, I live in a country with ridiculously high gas prices.
As title indicates, what performance mods have you done to your car and did you notice a gain or reduction in mpg?
Some of you will probably say this is a stupid question and I should buy a prius or something. Well, dont bother.
So I thought why not try to improve both hp and mpg.
* Tune?
* Headers? Makes sense to increase mpg in daily driving due to less resistance?
* SC pulley or crank pulley?
Or any other performance mod you noticed an mpg gain from?
thanks
and yes, I live in a country with ridiculously high gas prices.
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From: OC, CA
2006 E55
Done SCP, TB, HE, IC Pump, LTH no cats, 550 injectors, & tune. Saw MPG gain on Freeway driving 18-23 mpg pending on trip miles cruising at 80-85 mph. 10 miles trips I see 18, 100 miles I see 21-23 mpg. City sucks unless you baby the pedal 10-15 mpg.
Before mods, mpg was 17 if I’m lucky
Before mods, mpg was 17 if I’m lucky
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Done SCP, TB, HE, IC Pump, LTH no cats, 550 injectors, & tune. Saw MPG gain on Freeway driving 18-23 mpg pending on trip miles cruising at 80-85 mph. 10 miles trips I see 18, 100 miles I see 21-23 mpg. City sucks unless you baby the pedal 10-15 mpg.
Before mods, mpg was 17 if I’m lucky
Before mods, mpg was 17 if I’m lucky
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2015 E400 Sedan
This is difficult as to make more HP you need to burn more fuel (as that is where the energy comes from) so less MPG.
Option is to make engine more efficient at burning fuel which is very very difficult since the engine internals are mainly responisble for that.
Most Hp mods are designed to get more air into engine which means more fuel....
Or tunes which give it more fuel
OR exhaust which lets engine exhale better allowing more air in easier..
Option is to make engine more efficient at burning fuel which is very very difficult since the engine internals are mainly responisble for that.
Most Hp mods are designed to get more air into engine which means more fuel....
Or tunes which give it more fuel
OR exhaust which lets engine exhale better allowing more air in easier..
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Joined: Oct 2018
Posts: 699
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From: OC, CA
2006 E55
Just finished a 70 mile trip on fast trak sometimes going over 100, cruising 85 and still got 19 plus overall for the trip. Above photo was from a trip to San Diego.
Last edited by MSG 55G; Feb 6, 2019 at 04:30 PM.
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Thanks for reply. I was thinking maybe to do long tube headers and a tune and keep the rest stock for now if that makes sense. To get a little more power, and better engine sound and hopefully a little better mpg. Maybe also sc pulley, but after reading a few horror stories about failures I am a bit sceptical as I dont want to risk big $$$ to repair after failure. However, I would assume the sc pulley quality has gotten better after failure reports? 🤔
Super Member
Joined: Oct 2018
Posts: 699
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From: OC, CA
2006 E55
Thanks for reply. I was thinking maybe to do long tube headers and a tune and keep the rest stock for now if that makes sense. To get a little more power, and better engine sound and hopefully a little better mpg. Maybe also sc pulley, but after reading a few horror stories about failures I am a bit sceptical as I dont want to risk big $$$ to repair after failure. However, I would assume the sc pulley quality has gotten better after failure reports? 🤔
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FWIW.... My 2004 E-500 with the naturally aspirated five liter got 26 on the freeway every tank... Average speeds from starting cold to turning it off 104 miles later of 70-80. That car had the seven speed... Wonder how different ratios are? Wonder how impossible it is to get one to live behind the force fed bent eight in an E-55? Electronics for that automagique? I really liked that box. Closer ratios then the five speed. If failing memory serves 2000 at 70mph in seventh.
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if I can redo, I would do SCP, cooling, injectors and LTH with tune. TB I didn’t really notice power gain much. Definitely noticed night n day when LTH installed. However, after LTH installed, I’m getting primary O2 sensors code after installating new sensors as well...a bit frustrating but I cleared em and monitor. Maybe my sensor is getting dripped with rear main seal leaks. 🤬
FWIW.... My 2004 E-500 with the naturally aspirated five liter got 26 on the freeway every tank... Average speeds from starting cold to turning it off 104 miles later of 70-80. That car had the seven speed... Wonder how different ratios are? Wonder how impossible it is to get one to live behind the force fed bent eight in an E-55? Electronics for that automagique? I really liked that box. Closer ratios then the five speed. If failing memory serves 2000 at 70mph in seventh.
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