Mad MPGs with AA Headers

SDemetris · 03-07-2016, 10:58 PM

So I went on my first long road trip since getting my headers. I went from Pittsburgh, PA to Murrell's Inlet, SC today and got 33mpg... Last long trip I made was from Peoria, IL to Pittsburgh and got like 26mpg.... I had a little bit more stuff in my car during the Peoria trip, but that shouldnt make a difference on a mostly highway trip.

Not sure if this will affect anyone's choice to buy them or not, but that's what I've experienced so far.

Also, i79 in West Virginia is so much fun. Highly recommend. No cops, all on-camber turns, no traffic... had a great time

Eagle1oh7 · 03-07-2016, 11:12 PM

I'm doing them later this year, California emissions be damned!

hassmaschine · 03-08-2016, 12:27 AM

how many miles per trip? I routinely get well over 30mpg on long trips in my 330i which is basically stock. too bad most of my driving is shorter trips..

SDemetris · 03-08-2016, 03:11 AM

Quote:

Originally Posted by hassmaschine

how many miles per trip? I routinely get well over 30mpg on long trips in my 330i which is basically stock. too bad most of my driving is shorter trips..

today it was roughly 600 miles. I suppose it was net downhill since I went to the ocean, but I cant imagine it made a huge difference over such a distance

Three_thirty_I · 03-08-2016, 08:23 AM

What sort of cruising speed? My 330i is definitely not as light on fuel on the open road as I would like, mostly drops to around 9.1 l/100 km (25.85mpg), but that's cruising at max 130 km/h, a few hills and a pass, maybe some slower bits along the way. I suppose if I really try, I can get it below 9 l/100 km and if I select a slightly lower cruising speed. But this car is definitely not as economical on the open road as the E46 330i 6MT that I have.

SDemetris · 03-08-2016, 10:48 AM

Quote:

Originally Posted by Three_thirty_I

What sort of cruising speed? My 330i is definitely not as light on fuel on the open road as I would like, mostly drops to around 9.1 l/100 km (25.85mpg), but that's cruising at max 130 km/h, a few hills and a pass, maybe some slower bits along the way. I suppose if I really try, I can get it below 9 l/100 km and if I select a slightly lower cruising speed. But this car is definitely not as economical on the open road as the E46 330i 6MT that I have.

So it depended on state. Virginia I stayed the speed limit which was 60 most of the time, but ranged from 55-70mpg. Earlier I probably averaged around 80 and probably 45 to 55 for the last 60 miles or so

Three_thirty_I · 03-08-2016, 11:24 AM

Those are some really good mpg figures for the various speeds. I somehow doubt my 330i will be able to match this though.

SDemetris · 03-08-2016, 11:44 AM

Yeah I reall y don't know how it happened, especially with xi

Volasko · 03-08-2016, 12:07 PM

Quote:

Originally Posted by SDemetris

Yeah I reall y don't know how it happened, especially with xi

I'm guessing the slope to the ocean plus a tail wind had something to do with it.

Eagle1oh7 · 03-08-2016, 08:56 PM

I get about 23-24 on open road.

supergoat · 03-09-2016, 08:52 PM

Quote:

Originally Posted by SDemetris

So I went on my first long road trip since getting my headers. I went from Pittsburgh, PA to Murrell's Inlet, SC today and got 33mpg... Last long trip I made was from Peoria, IL to Pittsburgh and got like 26mpg.... I had a little bit more stuff in my car during the Peoria trip, but that shouldnt make a difference on a mostly highway trip.

Not sure if this will affect anyone's choice to buy them or not, but that's what I've experienced so far.

Also, i79 in West Virginia is so much fun. Highly recommend. No cops, all on-camber turns, no traffic... had a great time

I have nothing to add other than to say welcome to the great state of South Carolina. Enjoy your stay! And let's go Penguins!

StealYourFace · 03-10-2016, 01:28 PM

That is definitely an added benefit, though not surprising - with the cruise set at 78 (indicated) with 3.38's my car has never done better than 29 on a road trip. Backing off to like 74 makes a big difference, but fuck it I want to get there!

SDemetris · 03-12-2016, 10:41 AM

So after the trip home I ended at 29.4mpg.. Gonna say the difference was 2 things:
1: Slope uphill on the way home

2: on the way down I drove mountains in the day and flat in the night. Way home I did flat parts during the day and mountains in the night so I used my brakes a lot more going downhill since I was tired and it was dark

03-07-2016, 10:58 PM	#1
SDemetris FSAE Dude 62 Rep 759 Posts Drives: E90 328xi Join Date: Jul 2012 Location: Pittsburgh, PA iTrader: (0)	Mad MPGs with AA Headers So I went on my first long road trip since getting my headers. I went from Pittsburgh, PA to Murrell's Inlet, SC today and got 33mpg... Last long trip I made was from Peoria, IL to Pittsburgh and got like 26mpg.... I had a little bit more stuff in my car during the Peoria trip, but that shouldnt make a difference on a mostly highway trip. Not sure if this will affect anyone's choice to buy them or not, but that's what I've experienced so far. Also, i79 in West Virginia is so much fun. Highly recommend. No cops, all on-camber turns, no traffic... had a great time __________________ 2007 TiAg 328xi: AA Tune, AFE intake, Full exhaust, 335xi Brakes, H&R RSB, UUC FSB, H&R Sports, Billy Sports...BBS SR 17x8 1985 Gazelle Beige 325e: Poly everything, e24 3.25 LSD, 225 lb weight reduction, Corbeau FX1, Shifter machined by me, roll bar, harness, all the other goodies. My "Racecar"...15x7 BBS RA
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03-07-2016, 11:12 PM	#2
Eagle1oh7 Lieutenant Colonel 287 Rep 1,710 Posts Drives: '11 328i Sedan Join Date: Oct 2012 Location: Chula Vista CA iTrader: (0)	I'm doing them later this year, California emissions be damned! __________________ DONE: Seibon CF Hood, M3 Rep, MSport rear w/DD CF Diffuser, M3 Rep Skirts, Seibon CSL trunklid, Forgestar F14 18s w/Michelin PSS, Eisenmann catback, AA Headers, BPC Stage 2, Charcoal Delete+revMotor+AFE Drop In filter FUTURE MODS: LED headlights, CF rooftop, M3 Suspension Conversion, Dinan CAI Mod
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03-08-2016, 12:27 AM	#3
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	how many miles per trip? I routinely get well over 30mpg on long trips in my 330i which is basically stock. too bad most of my driving is shorter trips..
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03-08-2016, 08:23 AM	#5
Three_thirty_I Lieutenant Colonel 200 Rep 1,834 Posts Drives: '05 E90 330i Manual Join Date: Aug 2010 Location: Cape Town, South Africa iTrader: (0) Garage List 2005 BMW E90 330i [0.00]	What sort of cruising speed? My 330i is definitely not as light on fuel on the open road as I would like, mostly drops to around 9.1 l/100 km (25.85mpg), but that's cruising at max 130 km/h, a few hills and a pass, maybe some slower bits along the way. I suppose if I really try, I can get it below 9 l/100 km and if I select a slightly lower cruising speed. But this car is definitely not as economical on the open road as the E46 330i 6MT that I have. __________________ BMW E90 330i (M) '05 (His) \| (Hers) BMW E46 320i f/l (M) '03
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03-08-2016, 11:24 AM	#7
Three_thirty_I Lieutenant Colonel 200 Rep 1,834 Posts Drives: '05 E90 330i Manual Join Date: Aug 2010 Location: Cape Town, South Africa iTrader: (0) Garage List 2005 BMW E90 330i [0.00]	Those are some really good mpg figures for the various speeds. I somehow doubt my 330i will be able to match this though. __________________ BMW E90 330i (M) '05 (His) \| (Hers) BMW E46 320i f/l (M) '03
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03-08-2016, 11:44 AM	#8
SDemetris FSAE Dude 62 Rep 759 Posts Drives: E90 328xi Join Date: Jul 2012 Location: Pittsburgh, PA iTrader: (0)	Yeah I reall y don't know how it happened, especially with xi
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03-08-2016, 08:56 PM	#10
Eagle1oh7 Lieutenant Colonel 287 Rep 1,710 Posts Drives: '11 328i Sedan Join Date: Oct 2012 Location: Chula Vista CA iTrader: (0)	I get about 23-24 on open road. __________________ DONE: Seibon CF Hood, M3 Rep, MSport rear w/DD CF Diffuser, M3 Rep Skirts, Seibon CSL trunklid, Forgestar F14 18s w/Michelin PSS, Eisenmann catback, AA Headers, BPC Stage 2, Charcoal Delete+revMotor+AFE Drop In filter FUTURE MODS: LED headlights, CF rooftop, M3 Suspension Conversion, Dinan CAI Mod
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03-10-2016, 01:28 PM	#12
StealYourFace Lieutenant Colonel 261 Rep 1,794 Posts Drives: F30 328i M 6mt, E36 M3 Join Date: Jul 2009 Location: Shakedown Street, Buffalo NY iTrader: (1)	That is definitely an added benefit, though not surprising - with the cruise set at 78 (indicated) with 3.38's my car has never done better than 29 on a road trip. Backing off to like 74 makes a big difference, but fuck it I want to get there! __________________
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03-12-2016, 10:41 AM	#13
SDemetris FSAE Dude 62 Rep 759 Posts Drives: E90 328xi Join Date: Jul 2012 Location: Pittsburgh, PA iTrader: (0)	So after the trip home I ended at 29.4mpg.. Gonna say the difference was 2 things: 1: Slope uphill on the way home 2: on the way down I drove mountains in the day and flat in the night. Way home I did flat parts during the day and mountains in the night so I used my brakes a lot more going downhill since I was tired and it was dark
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