E85 tune for a Z4M

mousitch · 10-26-2010, 12:43 PM

Talked to Bren tuning. Says they have an E85 tune only for our car. Makes more power as E85 is similar to racing fuel(105 octane). Up to 30 hp compared to 20 on good 94 octane. Other than availbility can you see any harm in this. Hoses, fuel pumps? Will only run on e85 will not run on regular unleaded.

007MCoupe · 10-26-2010, 03:57 PM

here's the original thread from when a couple guys from the forum got it done:

http://www.zpost.com/forums/showthre...highlight=bren

mousitch · 10-26-2010, 04:48 PM

Quote:

Originally Posted by shift@red

I dont think its worth it.

I agree. Gonna stick with Bren's 93 tune. It's badass enough.

mfanatic325 · 10-26-2010, 06:17 PM

Yeah don't you have to modify the fuel-delivery hoses and stuff in order to run E85 gas? I remember doing an engineering report on E85 for automotive use several semesters ago and that was the case.

007MCoupe · 10-27-2010, 07:22 AM

oh man, i completely misread your first post. Thought you meant E85 as in roadster. HA! muh bad.

ShakyDog · 10-27-2010, 03:08 PM

I don't think our engines like all that corn do they?

Or does the mod change that requirement, something about no more than 10% or bad things happen?

Also from my experience with E85 fuel is it runs 5 to 7 MPG less than normal fuel.

Steve

Z4-VILLA · 10-27-2010, 06:56 PM

it doesnt seem worth the money....id rather do an ess tune. pluss where do u get flex fuel anyway?

mousitch · 10-28-2010, 08:41 AM

Quote:

Originally Posted by Z4-Villalona

it doesnt seem worth the money....id rather do an ess tune. pluss where do u get flex fuel anyway?

Bren also has the reg 93 program also with 20hp to rear wheel tune(dyno with RPI scoops)proven . I have had the ESS and the Powerchip. Not really blown away by either. Going with Bren this time.

STIHLBOLTS · 10-28-2010, 09:15 AM

Luckily I have a regular gas station in front of my business that does not carry any ethanol in their tanks. I don't know how much longer they can keep that up but hopefully somethings well get repealed and we won't have to keep shoving that crap down our gas tanks. I run two trucks for delivery every day with 35 gallon gas tanks. With ethanol additive my tank mileage goes from 480 down to around 400-425 max, thats a loss of 50 miles. At 2.75 per gallon on regular unleaded you can see it costs me money to run ethanol gas.

Best regards

krnnerdboy · 10-30-2010, 03:26 AM

so before dismissing this, do we have any facts? dyno of the e85 tune? This would be so much cheaper than paying 7.99 a gallon for 100 oct.

10-26-2010, 12:43 PM	#1
mousitch Dark Sider 129 Rep 1,779 Posts Drives: 2008 Space Gray Z4MC Join Date: Jan 2010 Location: Missouri iTrader: (11) Garage List 2008 Z4M Coupe [7.50]	E85 tune for a Z4M Talked to Bren tuning. Says they have an E85 tune only for our car. Makes more power as E85 is similar to racing fuel(105 octane). Up to 30 hp compared to 20 on good 94 octane. Other than availbility can you see any harm in this. Hoses, fuel pumps? Will only run on e85 will not run on regular unleaded. __________________ [URL=http://imageshack.us/photo/my-images/153/071jt.jpg/] 2008 Space Grey M Coupe-Euro headers-RPI Scoop-Gruppe M CAI-Eisenmann Race Cans-RE X-pipe-ECU Remap with O2 and EGT delete-H&R Sport springs-Zeck CDV delete-Stock Gloss black powder coated wheels-LED Tekarbon Angel Eyes Project-Michelin Super Sports-Hardwired Uniden R7-H&R front and rear spacers-Alarm module added-stereo amp recoded to vert spec settings Last edited by mousitch; 10-26-2010 at 12:57 PM..
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10-26-2010, 03:57 PM	#2
007MCoupe Lieutenant Colonel 94 Rep 1,546 Posts Drives: '18 Sakhir M3 ZCP Join Date: Jun 2010 Location: ( ///// ) iTrader: (5)	here's the original thread from when a couple guys from the forum got it done: http://www.zpost.com/forums/showthre...highlight=bren __________________ Become a ///Member!
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10-26-2010, 06:17 PM	#4
mfanatic325 ///M-fanatic 193 Rep 3,885 Posts Drives: '01 911 Turbo Join Date: Oct 2007 Location: Cupertino, CA. iTrader: (23)	Yeah don't you have to modify the fuel-delivery hoses and stuff in order to run E85 gas? I remember doing an engineering report on E85 for automotive use several semesters ago and that was the case.
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10-27-2010, 07:22 AM	#5
007MCoupe Lieutenant Colonel 94 Rep 1,546 Posts Drives: '18 Sakhir M3 ZCP Join Date: Jun 2010 Location: ( ///// ) iTrader: (5)	oh man, i completely misread your first post. Thought you meant E85 as in roadster. HA! muh bad. __________________ Become a ///Member!
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10-27-2010, 03:08 PM	#6
ShakyDog Captain 183 Rep 623 Posts Drives: 2007 Z4 3.0i Alpine White/Red Join Date: Mar 2010 Location: Missouri iTrader: (4)	I don't think our engines like all that corn do they? Or does the mod change that requirement, something about no more than 10% or bad things happen? Also from my experience with E85 fuel is it runs 5 to 7 MPG less than normal fuel. Steve
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10-27-2010, 06:56 PM	#7
Z4-VILLA Banned 111 Rep 2,460 Posts Drives: Z4M Hardtop Roadster Join Date: Feb 2009 Location: Classified iTrader: (0)	it doesnt seem worth the money....id rather do an ess tune. pluss where do u get flex fuel anyway?
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10-28-2010, 09:15 AM	#9
STIHLBOLTS Lieutenant 25 Rep 446 Posts Drives: 2013 335is Join Date: Nov 2009 Location: South Georgia iTrader: (0) Garage List 2020 Z4 M4.0i [5.00]	Luckily I have a regular gas station in front of my business that does not carry any ethanol in their tanks. I don't know how much longer they can keep that up but hopefully somethings well get repealed and we won't have to keep shoving that crap down our gas tanks. I run two trucks for delivery every day with 35 gallon gas tanks. With ethanol additive my tank mileage goes from 480 down to around 400-425 max, thats a loss of 50 miles. At 2.75 per gallon on regular unleaded you can see it costs me money to run ethanol gas. Best regards __________________ 2013 335is E93 2018 X5 35d BMWCCA / ZSCCA Member
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10-30-2010, 03:26 AM	#10
krnnerdboy Colonel 190 Rep 2,431 Posts Drives: v10 m6 Join Date: Nov 2008 Location: so cal iTrader: (10)	so before dismissing this, do we have any facts? dyno of the e85 tune? This would be so much cheaper than paying 7.99 a gallon for 100 oct. __________________ F80 m3, 997 gt3, 14 ram ctd, f15 x5, drz400sm Gone:z4m, boss 302, c6 z06, m6,z3m
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