100 octane question

Andrew126 · 11-08-2011, 10:10 PM

i have a 07 bmw 335i e90 with intake, secondary cats/muffler/resonator delete, and a JB4.... I am wondering if I can run 100 octane and use map 7 on the JB4 to get more power without damaging anything in terms of the engine? ALso another question if i change it from map 2 to 7 do i have to let the car get used to the map or just swap and good to go... If it all works out im hoping to do the 1/8 on thursday with 100 octane on map 7... PS this is California 100 octane (true i think)

Q4P · 11-08-2011, 10:12 PM

Running a higher octane gas is safer for the car; it reduces chances of knock.

Andrew126 · 11-08-2011, 10:17 PM

ok so 100 octane wont hurt the car.. now what about the other questions?

Q4P · 11-08-2011, 10:23 PM

Quote:

Originally Posted by Andrew126

ok so 100 octane wont hurt the car.. now what about the other questions?

I personally run a Procede so I am not too familiar with the JB maps and what they require but I am sure someone will chime in soon.

Haus_07 · 11-09-2011, 01:44 AM

Quote:

Originally Posted by Andrew126

i have a 07 bmw 335i e90 with intake, secondary cats/muffler/resonator delete, and a JB4.... I am wondering if I can run 100 octane and use map 7 on the JB4 to get more power without damaging anything in terms of the engine? ALso another question if i change it from map 2 to 7 do i have to let the car get used to the map or just swap and good to go... If it all works out im hoping to do the 1/8 on thursday with 100 octane on map 7... PS this is California 100 octane (true i think)

Log a few WOT pulls in 3rd/4th gear on map 7 with 100 in you tank, and check for any major timing drops (ign adv tab). My guess is you'll be fine, but it's better to know what's going on with the car before you hit the track IMO. GOOD LUCK!!!

dlbrooks18 · 11-09-2011, 01:54 AM

You should be fine, enjoy!

enrita · 11-09-2011, 02:08 AM

i would not run map 7 on stock dps. Too much boost which will create more backpressure and heat and put strain on the turbos. FBO only.

5soko · 11-09-2011, 08:39 AM

Should be good to go.. Try to get a log, and probably need 1-2 WOT runs to get it adapt 100%

Mike@N54Tuning.com · 11-09-2011, 09:09 AM

Shoot over a log. The JB4 has absolute boost targeting so there is virtually no adaptation period (1 WOT run should do it). Fill her up a and log a few runs so we can see how your car likes the setup.

Mike

secretsquirrel · 11-09-2011, 10:17 AM

Quote:

Originally Posted by Mike@N54Tuning.com

Shoot over a log. The JB4 has absolute boost targeting so there is virtually no adaptation period (1 WOT run should do it).
Mike

Ahh. I didn't know that. I've always wondered why the JB3 & JB4 had so many maps. Now it makes sense.

11-08-2011, 10:10 PM	#1
Andrew126 New Member 0 Rep 27 Posts Drives: 07 BMW 335i E90 Join Date: Sep 2011 Location: Anaheim iTrader: (0)	100 octane question i have a 07 bmw 335i e90 with intake, secondary cats/muffler/resonator delete, and a JB4.... I am wondering if I can run 100 octane and use map 7 on the JB4 to get more power without damaging anything in terms of the engine? ALso another question if i change it from map 2 to 7 do i have to let the car get used to the map or just swap and good to go... If it all works out im hoping to do the 1/8 on thursday with 100 octane on map 7... PS this is California 100 octane (true i think)
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11-08-2011, 10:12 PM	#2
Q4P Colonel 83 Rep 2,291 Posts Drives: Too Much Join Date: Apr 2011 Location: World iTrader: (0)	Running a higher octane gas is safer for the car; it reduces chances of knock. __________________ 2jZ + RB26 + 4G63 + LS9 + N54 =
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11-08-2011, 10:17 PM	#3
Andrew126 New Member 0 Rep 27 Posts Drives: 07 BMW 335i E90 Join Date: Sep 2011 Location: Anaheim iTrader: (0)	ok so 100 octane wont hurt the car.. now what about the other questions?
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11-09-2011, 01:54 AM	#6
dlbrooks18 Brigadier General 161 Rep 3,736 Posts Drives: e90 335i Join Date: Nov 2008 Location: Los Angeles iTrader: (2)	You should be fine, enjoy! __________________ 2008 E90 335
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11-09-2011, 02:08 AM	#7
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	i would not run map 7 on stock dps. Too much boost which will create more backpressure and heat and put strain on the turbos. FBO only. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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11-09-2011, 08:39 AM	#8
5soko Brigadier General 336 Rep 4,633 Posts Drives: M5 Join Date: Aug 2007 Location: Brooklyn, NY iTrader: (4)	Should be good to go.. Try to get a log, and probably need 1-2 WOT runs to get it adapt 100%
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11-09-2011, 09:09 AM	#9
Mike@N54Tuning.com Joint Chiefs of Staff 4927 Rep 116,006 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Shoot over a log. The JB4 has absolute boost targeting so there is virtually no adaptation period (1 WOT run should do it). Fill her up a and log a few runs so we can see how your car likes the setup. Mike
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