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M235 and octane boosters
11-10-2015, 12:38 PM
Post: #21
M235 and octane boosters
(11-09-2015 11:54 AM)Daneman Wrote:  I did some research today, and found the following interesting fact, is they claim that Shell V power has a RON rating of 96.7, which is effectively 96.7 Octane, which would explain the better fuel consumption, what I achieved with the Racing fuel concentrate(NF Ultra) haven't been able to find anything regarding the other fuels.

See Comparative below

[Image: fast_fours_results-graph_7640653192.gif]

I saw this and decided to use V power for one tank and it did make a slight difference. Maybe it was just because my girl was cold but I got the full 240kw out of my m235i which is a first cause usually they only push about 215kw here in jozi.


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13-10-2015, 10:12 AM (This post was last modified: 13-10-2015 10:13 AM by 002FTW.)
Post: #22
RE: M235 and octane boosters
I use 10% ethanol and it gives you a LITTLE bit more power...stay away from octane boosters.

Also on the fuel cap mine says you can use E10 which is 10% ethanol mix with no need for remapping. Also grades off fuel in SA compared to Europe is miles apart. You get 98 at the pumps.

Can anyone tell me what octane will pump 95 + 10% ethanol (96% Eth) take you to?
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11-12-2015, 10:21 PM
Post: #23
RE: M235 and octane boosters
Ethanol ron rating of 114.. So just work out ron rating per % volume of fuel and ethanol. I did 12 liters ethanol and 48 liters 95 on the gti. Was running close to 101 octane.

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11-12-2015, 11:56 PM
Post: #24
M235 and octane boosters


Your calculating octance and not eth content, it doesn't work like the calculation above...



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12-12-2015, 09:03 AM
Post: #25
RE: M235 and octane boosters
My car likes Sasol and Shell.. Interesting graph above, Shell feels like it gives my car a bit more, but I won't know for sure. On a stock car, running octane boosters is probably not worth it IMHO.

Eth with mods yes that is the way to go. CoolShake

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15-06-2019, 04:41 PM
Post: #26
M235 and octane boosters
I've been using NF Ultra 1 litre to a tank for 30 000km without any issues. 24/7 Race Additive is a better alternative though, as is 10% ethanol mixed with NF Ultra (1 litre Ultra per 25 litre ethanol, then 5 litre of this mix on a tank).

Based on logging.


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BMWFanaticscoza, Twinz
24-06-2019, 10:06 AM
Post: #27
RE: M235 and octane boosters
(15-06-2019 04:41 PM)AudiDriver Wrote:  I've been using NF Ultra 1 litre to a tank for 30 000km without any issues. 24/7 Race Additive is a better alternative though, as is 10% ethanol mixed with NF Ultra (1 litre Ultra per 25 litre ethanol, then 5 litre of this mix on a tank).

Based on logging.


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Is your car stock?

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25-06-2019, 07:48 AM
Post: #28
M235 and octane boosters
Nope...stage 2, DP, FMIC, WMI.


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25-06-2019, 09:00 AM
Post: #29
RE: M235 and octane boosters
(25-06-2019 07:48 AM)AudiDriver Wrote:  Nope...stage 2, DP, FMIC, WMI.


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Thumbs
Any idea what the power output difference is with the additives?
I'm currently on Stage 2 with DP.

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25-06-2019, 07:19 PM
Post: #30
M235 and octane boosters
I have never dynoed with vs without, but on T2 setting and pump fuel the ecu retards between 4 and 5 deg of timing in mid range. Using the mix there is no timing retard. The difference can be felt in the seat.


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26-06-2019, 02:18 PM
Post: #31
RE: M235 and octane boosters
Cool, looking forward to trying it out sometime soon smile bounce

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26-06-2019, 05:11 PM
Post: #32
RE: M235 and octane boosters
(15-06-2019 04:41 PM)AudiDriver Wrote:  I've been using NF Ultra 1 litre to a tank for 30 000km without any issues. 24/7 Race Additive is a better alternative though, as is 10% ethanol mixed with NF Ultra (1 litre Ultra per 25 litre ethanol, then 5 litre of this mix on a tank).

I use NF ultra in my mixes too...as long as the concentration per liter of fuel is not too strong. There has been stories about fouling plugs due to a too strong mixture. 1 liter NF ultra mixed with 25 - 35 liters of fuel is a good drag mix. Thumbs

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26-06-2019, 05:23 PM
Post: #33
RE: M235 and octane boosters
(26-06-2019 05:11 PM)Twinz Wrote:  
(15-06-2019 04:41 PM)AudiDriver Wrote:  I've been using NF Ultra 1 litre to a tank for 30 000km without any issues. 24/7 Race Additive is a better alternative though, as is 10% ethanol mixed with NF Ultra (1 litre Ultra per 25 litre ethanol, then 5 litre of this mix on a tank).

I use NF ultra in my mixes too...as long as the concentration per liter of fuel is not too strong. There has been stories about fouling plugs due to a too strong mixture. 1 liter NF ultra mixed with 25 - 35 liters of fuel is a good drag mix. Thumbs

Must be an expensive exercise Skit

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26-06-2019, 09:11 PM
Post: #34
RE: M235 and octane boosters
(26-06-2019 05:11 PM)Twinz Wrote:  
(15-06-2019 04:41 PM)AudiDriver Wrote:  I've been using NF Ultra 1 litre to a tank for 30 000km without any issues. 24/7 Race Additive is a better alternative though, as is 10% ethanol mixed with NF Ultra (1 litre Ultra per 25 litre ethanol, then 5 litre of this mix on a tank).

I use NF ultra in my mixes too...as long as the concentration per liter of fuel is not too strong. There has been stories about fouling plugs due to a too strong mixture. 1 liter NF ultra mixed with 25 - 35 liters of fuel is a good drag mix. Thumbs

What sort of mix would you need to run map 7 with JB4? Or should you just leave the car in map 5?

Also, if one has to run ethanol, how would you mix that to a tank of fuel?

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27-06-2019, 05:33 AM
Post: #35
M235 and octane boosters
10% ethanol (about 5 litres to a tank) is safe. You can run up to 15% - it makes a big difference on stock M2 / M3 for example.


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27-06-2019, 12:20 PM
Post: #36
RE: M235 and octane boosters
If i'm not mistaken, with the JB4 you can run up to an e30 mix? Depending on how well your fuel pumps can handle it. How would you determine the ratios?

Current:
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2015 335i M Sport - 264kw 534nm
2018 VW Polo Vivo

EX:
2014 320i M Sport
2013 320d M Sport
2006 Subaru Impreza STI - 12.5s / 257kw 508nm
2013 435i M Sport - 221kw 400nm
2011 Golf 6 GTI DSG - 12.9s / 214kw 465nm
2012 VW Jetta 6 1.4TSi
2011 Audi 2.0T Sportback
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02-08-2019, 05:21 PM
Post: #37
RE: M235 and octane boosters
on a stock car Id go 10% or a octane booster which ive used and got good results from is Boost Juice from The357

on something with software and downpipe a 30% Eth mix is a winner on a stock lpfp

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