fuel economy drop with turbo tuner.

FotiosF90M5 · 04-22-2007, 11:18 AM

Ive had it for like 5 days and the fuel aconomy has dipped fast.Granted I have been driving it hard but it went from 19.9 to 19.3 already.It seems like it might get worse.What is everyone else getting.Im curious as to what it will get driving like a civilized human being.Oh well, its very,very fun though.

CASHBY · 04-22-2007, 11:22 AM

well if your flooring it since you got it that is the reason...but .5 mile difference is nothing to be worried about... specially if you are really flooring it a lot.

Terry335 · 04-22-2007, 12:26 PM

On my car it was the same as stock when cruising, dropped a bit when flooring it a lot.

NPDAN · 04-22-2007, 12:28 PM

The harder you push it, the thirstier it gets...

hotrod182 · 04-22-2007, 01:19 PM

Takes fuel to make power. I am only getting 14.1mpg so far on my stock 335i in 1600 miles of driving.

zenmaster · 04-22-2007, 02:01 PM

Last tank of gas I drove my stock 2007 335i the exact same way as my 1995 540i (w/ dinan chip). The daily route I take is 15% city 85% hwy. So for over 300mi, I get exactly 1 extra mile per gallon 23mpg w/ 335i vs 22mpg w/ 540i. After some break-in time the fuel economy may improve slightly.

MacAttack · 04-22-2007, 02:05 PM

.3, .5, .8....alles machts nichts (doesn't matter). Just enjoy the ride.

FotiosF90M5 · 04-22-2007, 02:09 PM

Quote:

Originally Posted by MacAttack

.3, .5, .8....alles machts nichts (doesn't matter). Just enjoy the ride.

sounds good to me.

BoostedBMW · 04-22-2007, 05:35 PM

To run more boost, you need to use more fuel.

You can't have your cake and eat it too.

FotiosF90M5 · 04-22-2007, 05:41 PM

Quote:

Originally Posted by BoostedBMW

To run more boost, you need to use more fuel.

You can't have your cake and eat it too.

some proceed customers claimed they gained mpg.

jon@themshop · 04-22-2007, 06:02 PM

Quote:

Originally Posted by fotios330i

some proceed customers claimed they gained mpg.

It really depends on the load. Some Turbo Tuner customers have gotten better gas mileage as well and that's only obvious if they're not always doing WOT runs.

Same can be true with the piggyback units.

BoostedBMW · 04-22-2007, 06:43 PM

Quote:

Originally Posted by fotios330i

some proceed customers claimed they gained mpg.

That's while cruising, not WOT.

There is no extra boost when the car is in vac.

Terry335 · 04-22-2007, 06:47 PM

The TT shouldn't increase your gas mileage, it only takes effect under boost. The procede/xede can lean the car out during part throttle for slightly better gas mileage.

tek818 · 04-22-2007, 07:08 PM

I've had absolutely NO change in gas millage since getting the turbo tuner. 17.9 MPG and I drive it pretty hard

rolling18 · 04-23-2007, 02:42 AM

Quote:

Originally Posted by hotrod182

Takes fuel to make power. I am only getting 14.1mpg so far on my stock 335i in 1600 miles of driving.

the 335 6sp loaner i drove with 4500 miles at- 70 mph
basicly flat freeway got me 30.1 mpg!! slowed to 65 mph and got 31.2 mpg
(same distance) VERY impressed!!

my current 330 xi i have to granny drive to get up to 26 mpg average... 6000 miles on it

JockmyStylez · 04-23-2007, 03:13 AM

i dont see how customers can see they get better gas mileage with adding performance enhancers, should be eating more to make more hp

fueledbymetal · 04-23-2007, 07:49 AM

Quote:

Originally Posted by JockmyStylez

i dont see how customers can see they get better gas mileage with adding performance enhancers, should be eating more to make more hp

As stated above:
"The procede/xede can lean the car out during part throttle for slightly better gas mileage."

FI cars are usualy tuned rich form the factory for an extra margin of safety, so that's an easy place to look for performance. The fringe benefit is that this also improves fuel efficiency.

04-22-2007, 11:18 AM	#1
FotiosF90M5 ///M Specialist South Shore BMW 770 Rep 7,108 Posts Drives: 2021 M5 Comp BHG/Silverstone Join Date: Jan 2007 Location: South Shore, MA iTrader: (62)	fuel economy drop with turbo tuner. Ive had it for like 5 days and the fuel aconomy has dipped fast.Granted I have been driving it hard but it went from 19.9 to 19.3 already.It seems like it might get worse.What is everyone else getting.Im curious as to what it will get driving like a civilized human being.Oh well, its very,very fun though. __________________ 2021 M5 COMPETITION LCI Brands Hatch Gray on SIlverstone, carbon roof, comp wheels, Mperf splitter, carbon pro spoiler, carbon diffuser , carbon paddles, executive pkg. Dinan HAS, RaceChip, dinan spacers, FC stud kit, etc
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04-22-2007, 11:22 AM	#2
CASHBY 168 Rep 2,114 Posts Drives: E90 335 "done up" Join Date: Dec 2006 Location: GARAGE iTrader: (2)	well if your flooring it since you got it that is the reason...but .5 mile difference is nothing to be worried about... specially if you are really flooring it a lot.
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04-22-2007, 12:26 PM	#3
Terry335 Banned 96 Rep 2,587 Posts Drives: 335i Join Date: Jan 2007 Location: Socal iTrader: (0)	On my car it was the same as stock when cruising, dropped a bit when flooring it a lot.
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04-22-2007, 12:28 PM	#4
NPDAN Colonel 95 Rep 2,573 Posts Drives: AW DCT M3 Join Date: Feb 2007 Location: So.Cal iTrader: (7) Garage List 2008 E92 M3 [8.00] 07' E92 335i [0.00]	The harder you push it, the thirstier it gets... __________________
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04-22-2007, 01:19 PM	#5
hotrod182 . 812 Rep 3,974 Posts Drives: 2023 i4 M50 Join Date: Dec 2006 Location: California iTrader: (0)	Takes fuel to make power. I am only getting 14.1mpg so far on my stock 335i in 1600 miles of driving.
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04-22-2007, 02:01 PM	#6
zenmaster Brigadier General 1577 Rep 3,888 Posts Drives: '17 M2 Join Date: Mar 2007 Location: Atlanta iTrader: (1)	Last tank of gas I drove my stock 2007 335i the exact same way as my 1995 540i (w/ dinan chip). The daily route I take is 15% city 85% hwy. So for over 300mi, I get exactly 1 extra mile per gallon 23mpg w/ 335i vs 22mpg w/ 540i. After some break-in time the fuel economy may improve slightly.
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04-22-2007, 02:05 PM	#7
MacAttack Colonel 29 Rep 2,134 Posts Drives: fast enough Join Date: Nov 2006 Location: Afghanistan iTrader: (0) Garage List 2007 BMW [0.00]	.3, .5, .8....alles machts nichts (doesn't matter). Just enjoy the ride. __________________ 2007 E92 335i Coupe: Monaco Blue/Premium/Sports/Winter Package/Nav/CA/6MT/TT/Active Cruise/Active Steering/iPod/Rear Shade/Tint/Short Shifter/OEM Alum Pedals//
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04-22-2007, 05:35 PM	#9
BoostedBMW Moderator 132 Rep 6,775 Posts Drives: TiAg E92 335 Join Date: Oct 2006 Location: Raleigh, NC iTrader: (14) Garage List 2003 S2000 [0.00]	To run more boost, you need to use more fuel. You can't have your cake and eat it too. __________________ -Michael. Berlina Black S2000 CR is now in the garage l 19" Rial Daytona Race l KW V2 l Eisenhaus Race Exhaust l
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04-22-2007, 06:47 PM	#13
Terry335 Banned 96 Rep 2,587 Posts Drives: 335i Join Date: Jan 2007 Location: Socal iTrader: (0)	The TT shouldn't increase your gas mileage, it only takes effect under boost. The procede/xede can lean the car out during part throttle for slightly better gas mileage.
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04-22-2007, 07:08 PM	#14
tek818 Lieutenant Colonel 136 Rep 1,954 Posts Drives: 2020 X3M Competition Join Date: Mar 2007 Location: Los Angeles, CA iTrader: (2) Garage List 2018 M3 ZCP [9.50]	I've had absolutely NO change in gas millage since getting the turbo tuner. 17.9 MPG and I drive it pretty hard
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04-23-2007, 03:13 AM	#16
JockmyStylez Enlisted Member 4 Rep 38 Posts Drives: e90 Join Date: Apr 2007 Location: US iTrader: (0)	i dont see how customers can see they get better gas mileage with adding performance enhancers, should be eating more to make more hp
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