JB4 (N54/N55) Support Thread, South Africa

ed_z

New member
With regards to upgraded turbos same flow just more volume so at lower boost levels on RBs you will run much more power than stock and this on pump gas.

As the last few posts point out octane octane but also remembering Ron vs Mon are very different in making power. Meaning you can run 95 pump with a gazillion liters of toluene and some ethanol and have 120 Octane Ron but Mon levels are very low. Speak to Rennzport for a good street E85 mix.
 

bybyM3

Member
nice twinz.

Have a look at my logs when you get a chance, heres a pic of it

Dammit i cant put it, Jpeg. HMMMMMMMM

ok lemme try print screen

cant either
 

ed_z

New member
bybyM3 said:
whats mon?

HideExamples of octane ratings

The RON/MON values of n-heptane and iso-octane are exactly 0 and 100, respectively, by the definition of octane rating. The following table lists octane ratings for various other fuels.[5][6]

Fuel RON MON AKI
hexadecane < -30
n-octane -10
n-heptane (RON and MON 0 by definition) 0 0 0
diesel fuel 15–25
2-methylheptane 23 23.8
n-hexane 25 26.0 26
1-pentene 34
2-methylhexane 44 46.4
3-methylhexane 55.0
1-heptene 60
n-pentane 62 61.9
requirement for a typical two-stroke outboard engine[7] 69 65 67
Pertamina "Premium" gasoline in Indonesia 88
"Regular" gasoline in Japan (Japanese Industrial Standards) 90
n-butanol 92 71 83
Neopentane (dimethylpropane) 80.2
"regular" gasoline in Australia, New Zealand, Canada and the US 91–92 82–83 87
Pertamina "Pertamax" gasoline in Indonesia 92
Shell "Super" in Indonesia 92
n-butane 94[8] 90.1
Isopentane (methylbutane) 90.3
Pertamina "Pertamax Plus" gasoline in Indonesia 95
Shell "Super Extra" in Indonesia 95
Shell "FuelSave " in Malaysia 95
"EuroSuper" or "EuroPremium" or "Regular unleaded" in Europe, "SP95" in France 95 85–86 90–91
"Premium" or "Super unleaded" gasoline in US (10% ethanol blend) 97 87-88 92-93
Shell "V-Power 97" in Malaysia 97
Shell "V-Power 98", Caltex "Platinum 98 with Techron", Esso Mobil "Synergy 8000" and SPC "LEVO 98" in Singapore 98 89–90 93–94
Great Britain, Slovenia and Spain, "SP98" in France 98 89–90 93–94
"SuperPlus" in Germany 98 88
Tesco "Momentum^99"[9] in UK 99 87
"Premium" gasoline in Japan (Japanese Industrial Standards) 100
Pertamina "Pertamax Racing" in Indonesia 100
Shell V-Power in Italy and Germany 100 88
Eni(or Agip) Blu Super +(or Tech) in Italy 100 87 94
IP Plus 100 in Italy 100
Tamoil WR 100 in Italy 100
San Marco Petroli F-101 in Italy(northern Italy only, just a few gas stations) 101
Petro-Canada "Ultra 94" in Canada [10] 101.5 88 94
Aral Super 95 in Germany 95 85
Aral Super 95 E10 (10% Ethanol) in Germany 95 85
Aral SuperPlus 98 in Germany 98 88
Aral Ultimate 102 in Germany 102 88
IES 98 Plus in Italy 98
2,2-dimethylbutane 93.4
2,3-dimethylbutane 94.4
ExxonMobil Avgas 100[11] 99.5 (min)
Shell "V-Power Racing" in Australia - discontinued July 2008 [12] 100
"isooctane" (RON and MON 100 by definition) 100 100 100
benzene 101
i-butane 102[13] 97.6
"BP Ultimate 102 - now discontinued"[14] 102 93–94 97–98
t-butanol 103 91 97
2,3,3-trimethylpentane 106.1[15] 99.4[15] 103
ethane 108
2,2,3-trimethylpentane 109.6[15] 99.9[15] 105
toluene 111 95 103
E85 gasoline 102-105 85-87 94-96[16]
propane 112 97
2,2,3-trimethylbutane 112.1[15] 101.3[15] 106
xylene 117
isopropanol 118 98 108
methanol 108.7[17] 88.6[17] 98.65
ethanol 108.6[17] 89.7[17] 99.15
2,5-Dimethylfuran 119
methane 120 120 120
hydrogen > 130
Close this section
Check out the Wikipedia site on search for Ron vs Mon.
 

ed_z

New member
bybyM3 said:
whats mon?

Lol sorry he did ask buddy! :) I forgot to do the quote post reply thing! Sorry:)


Lol ok but it's relative because it is what JB4 G5 iso allows that very few tunes do now and so much better than ever before. I bought 210 liters of E95 and enjoying not having fuel codes at all!!! I'm mixing 20 liters E95 and the rest pump gss now the weekend and testing octane as we go, helps having a Bio chemistry fuel engineer at Sasol as your buddy.
 

ed_z

New member
E95 per weight and as per combustibility will burn way more gas than normal according to my friend Dave. So was not seeing things:)


Oh and the fact that JB4 makes my wagon do warp speed I have to really concentrate keeping the rear in check:)
 

Turbo 1

New member
Finally I can also join the JB4 G5 club.
Big :thumbs: to outlaw335 for coming all the way to my house and help with the install :ty:.
Everything went flawless. All was done except for the water meth connections in approx 30min! I still need to fit the Meth tank and pump in boot, run the lines to engine compartment and fit the new forged DV`s and charge pipe.

After installation of the JB4 it was time to see if she would start...she did not disappoint. Purred like a kitten. outlaw335 gave me a quick run down of how the controls on steering wheel work.

Luckily I had some 95+octane boost in tank so went straight to map 5. Remember my car have some software on and I was very happy with it,really had my doubts if the JB4 would be stronger.
With the current software I got max 1.0bar boost peak and would fade away shortly after 5000RPM.

Lets test the JB4 now.... floor the pedal and I immediately see 1.1 bar on my boost gauge! And to top it all of it holds 1.0bar boost till 6000RPM. Car is smooth with no problems what so ever and definitely stronger than the software I had.
Good thing is that my old software is still active in Map 0-0.
This weekend it is fitting of charge pipe, Dv`s and water/meth system.
Also got a drum of some E95 :rollsmile:
 

quick1

New member
Thanks for this thread, been very helpfull. By the way, were can i get info on routing the jb4 usb cable to the glovebox on an N55 335i?

I have looked at Burger tuning website but it was very vague i thought.:thumbs::thumbs::thumbs::thumbs:

I do apologise if this has been covered before. :thumbs:
 
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