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Default Octane booster + 91 + E85 - 08-28-2014, 08:58 PM

Anyone use MMT octane boosters with E85 and 91 to bump the octane up?

I have been using a half bottle of the Lucas octane booster with about E35 + 91 for the last few weeks.

Anyone have experience or suggestions?
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Default 08-28-2014, 09:08 PM

Yeah it works what are you trying to accomplish?


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Default 08-28-2014, 09:13 PM

Quote:
Originally Posted by Spxxx
Anyone have experience or suggestions?
I do have a suggestion, get an upgraded LPFP and Back end flash and run E60, you will get insane octane rating and don’t need to waste your money of “octane boosters ” bottles


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Default 08-28-2014, 09:22 PM

Being able to hit E50-is timing targets with my custom flash map while not overworking my lpfp as I'm lazy and haven't installed my inline upgrade yet.

This octane booster stuff works pretty damn well.

Saw some independent company test a similar booster which bumped ****ty CA 91 up to nearly 99 octane. The bottles are only $4ea on Amazon too if you buy in bulk.
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Default 08-28-2014, 09:25 PM

Quote:
Originally Posted by CHECKERED
I do have a suggestion, get an upgraded LPFP and Back end flash and run E60, you will get insane octane rating and don’t need to waste your money of “octane boosters ” bottles
That is the plan. Just nice to use a little booster in the time being with my custom flash and E35 to help with the heat over summer so I pull less timing.

Will be running E50 soon but even then, it's nice to have a spare bottle of booster in the trunk in case you're stuck somewhere without e85 and want to keep your e85 flash running halfway decent (ex. Long trips, etc)
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Miller335 Miller335 is offline
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Default 08-28-2014, 09:48 PM

I'm no expert but pretty much every octane booster hardly boosts thr overall octane rating.

I could be wrong but torco is the only stuff that's the real deal.
Wedge was playing around with torco for a bit and he let me borrow some and it actually held map7. That's the only stuff I would use in a pinch.

Last edited by Miller335; 08-28-2014 at 10:08 PM..
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Default 08-28-2014, 09:52 PM

Research MMT, boosters containing this ingredient boost octane quite substantially

I have some logs comparing before and after, the Lucas one I have smooths out timing especially during these hot days.
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FC4 FC4 is offline
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Default 08-28-2014, 10:01 PM

I personally wouldn't waste time with octane boosters. Just mix in or run straight 100 octane and don't worry about it.
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Default 08-28-2014, 10:06 PM

Quote:
Originally Posted by FC4
I personally wouldn't waste time with octane boosters. Just mix in or run straight 100 octane and don't worry about it.
why? having the flexibility to run just a little booster when your E85 mix is off or the weather is hot. Having some booster is super valuable for those who run custom backend flashes and need to fine tune the octane levels.

btw, no one runs 100 these days (at least on these forums) E85 blending makes so much more sense especially with DI (added cooling, price, easy access, more power)


I'm simply looking for people with experience running blends of E85 + pump + booster with backend flashes. negative or positive... thanks!
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Default 08-28-2014, 10:06 PM

I bought a 5 gal can of Torco. Leaves a nasty rust color on your plugs as well as exhaust if you use it a lot. Great option if you're road tripping and need to bump the octane on some crap fuel.
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Default 08-28-2014, 10:08 PM

Quote:
Originally Posted by Wedge1967
I bought a 5 gal can of Torco. Leaves a nasty rust color on your plugs as well as exhaust if you use it a lot. Great option if you're road tripping and need to bump the octane on some crap fuel.
Exactly my concern on this trip up north this weekend.... not as far north as you though Ken lol

I was scared when I first saw that gnarly rust color fowling of my plugs haha, oh well.
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Default 08-28-2014, 10:09 PM

glad to hear I'm not the only one using booster to fine tune octane level on road trips. Beats carrying a 5gal tank of E85 in your trunk (I considered this....) lol
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Default 08-29-2014, 07:30 AM

Yeah, I'm not a fan of the rust color, but hey, if it works... Only issue is your fueling will be off a bit, but shouldn't hurt anything. Reality is if you're not WOT, it doesn't matter much, so if you get into a spot where you only have low octane fuel, just keep your foot out of the turbo...

Have a safe trip...

Quote:
Originally Posted by Spxxx
Exactly my concern on this trip up north this weekend.... not as far north as you though Ken lol

I was scared when I first saw that gnarly rust color fowling of my plugs haha, oh well.
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Default 08-29-2014, 07:33 AM

Yeah, with my pesky k-line I don't want to have to flash a new map with limited scalar for pump gas whenever I go on a trip and can't find E85. Mapping out E85 stations on my route now haha.
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Default 08-29-2014, 09:34 AM

Good luck with that. I find most of the E85 maps are worthless as most of the stations that offered it have shut down. We only have two stations in Portland. Its a 22 miles round trip for me to fill up, so I take cans with me so I only have to visit once a month. I've dropped back to an E50 mix with 92 oct kicker. If I had the space, I would probably buy a 55 gal drum of E98... or my own distillery.

Quote:
Originally Posted by Spxxx
Yeah, with my pesky k-line I don't want to have to flash a new map with limited scalar for pump gas whenever I go on a trip and can't find E85. Mapping out E85 stations on my route now haha.
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Default 08-29-2014, 09:39 AM

Quote:
Originally Posted by Wedge1967
Good luck with that. I find most of the E85 maps are worthless as most of the stations that offered it have shut down. We only have two stations in Portland. Its a 22 miles round trip for me to fill up, so I take cans with me so I only have to visit once a month. I've dropped back to an E50 mix with 92 oct kicker. If I had the space, I would probably buy a 55 gal drum of E98... or my own distillery.
Oh gosh, I'm sorry!

I have 3 stations within 5 miles of me here in the SF area. $3.10/gallon too.

Funny thing, I actually ran into another N54tech / BimmerBoost member with an E93 335i at my local station, it was pretty awesome.

I keep a 5 gal container of E85 at my house just in case I want to fine tune a map of mine plus I have the MMT booster for trips. It's pretty easy to find E85 here in CA.

I was actually considering running a race gas map and just using a bottle of the booster every fill-up as it's only $4/bottle and can supposedly bump you up to around 98-99 octane. I love the MPG with pump, I hate filling up every ~250 miles with E40.... mostly my fault for driving with a heavy right foot
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Default 08-29-2014, 09:52 AM

My wife complains about my fuel consumption. 12 mpg My average speed is like 25 mph so 95% of my driving is just around town picking the kids up and dropping them off to activities. I have a heavy foot and my kids love riding in my car going from 0-40 in 2 sec... Love my LSD Best mod so far. At least my tire wear will be more even. hahaha

Quote:
Originally Posted by Spxxx
Oh gosh, I'm sorry!

I have 3 stations within 5 miles of me here in the SF area. $3.10/gallon too.

Funny thing, I actually ran into another N54tech / BimmerBoost member with an E93 335i at my local station, it was pretty awesome.

I keep a 5 gal container of E85 at my house just in case I want to fine tune a map of mine plus I have the MMT booster for trips. It's pretty easy to find E85 here in CA.

I was actually considering running a race gas map and just using a bottle of the booster every fill-up as it's only $4/bottle and can supposedly bump you up to around 98-99 octane. I love the MPG with pump, I hate filling up every ~250 miles with E40.... mostly my fault for driving with a heavy right foot
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Default 08-29-2014, 10:02 AM

Ugh, I want an LSD so bad.

I'm tracking her next month once I have the subframe bushings upgraded and my M3 arms installed. If the cornering isn't up to par, I might bite the bullet and look into an LSD, waiting to hear more about the Mfactory LSD after some miles are put on it. They seem legit thus far.

I hate spending this much on a car with 100k miles until I'm on an on ramp doing a 2nd - 4th gear pull up to 140mph with a smile ear to ear...

I really want to trade it in soon for a 6AT as the 6MT loses so much power at each shift.... even though I just replaced turbos, starter, VCG, OFH, oil cooler, 550i clutch,PSS, and other stuff $$$$$$$$ thank god for my 3rd party warranty
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Default 11-18-2018, 11:29 AM

Quote:
Originally Posted by Spxxx
Being able to hit E50-is timing targets with my custom flash map while not overworking my lpfp as I'm lazy and haven't installed my inline upgrade yet.

This octane booster stuff works pretty damn well.

Saw some independent company test a similar booster which bumped ****ty CA 91 up to nearly 99 octane. The bottles are only $4ea on Amazon too if you buy in bulk.
Which octane booster was it?


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Default 11-18-2018, 12:25 PM

Torco is by far the best one


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Default 11-18-2018, 12:45 PM

4 year old thread bump.


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Ron Vogel Ron Vogel is offline
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Default 11-18-2018, 06:27 PM

I gave up on octane boosters (including Torco) back in the late 80's. Clogs up things over time (including fuel filters). Leaves residue on plugs that leads to early fouling. Mind you I have not tried it on an N54, but it's been my experience that it's best to blend race gas over trying to mess with octane boosters.
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Default 11-21-2018, 10:54 AM

The number of bottles required to obtain a 99 Octane rating on a full tank of gas gets silly. It might be viable on a 1/4 tank for the odd track run...

Ultimately, one must go with Ethanol, Methanol or some scalable solution.


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