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akayya akayya is offline
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Default Billet intake or in-box filter, which one ? - 04-30-2022, 05:08 PM

Hello there,

I own a BMW f30 with a b48 engine.(330i xdrive) engine code B48B20. I have been using jb4 for about 5 months and I am very satisfied. I mounted jb4,intake kit and ngk spark plug that I bought from bms at the same time. I have the pgear meter and after every change to the car I always check the 0-100 ,100-200.0-200 values ​​of the car in the same place and under the same conditions (full tank, two people and about same slope). Every time I used the car on map1, 2, 3 or map4, sometimes I felt the pull at full throttle at the advance values ​​of the car and I thought that this might be due to the low octane of the gasoline.



Since the weather started to get warm around here that I live , I saw an increase in IAT values ​​and I wanted to replace the open filter with the original in-box filter and observe the changes in the values. After the in-box filter, the car started to go better. I measured 0-200 value to understand the difference in the car. The result was the best value I've ever measured. Also, at full throttle, I didn't feel any pull in ignition value and the 0-200 value was 3 seconds better as you can see in the pictures (100-200 value = 0-200 minus 0-100 value).

25,17-6,5=18,67(100-200 value with billet intake)
21,6-5,93=15,67 (100-200 value with in-box filter.. also I installed my old paper filter that I used about 15000 km. )

Then I analyzed the log values ​​at home. In particular, the advance values ​​became more consistent with the in-box filter.

I am sending you the logs of the billet intake and the original in-box filter values, which I took the 0-100 and 0-200 values ​​of the vehicle, and the times I measured.

Measured with bms intake kit after line 1079 in log values.

There are many articles and videos about cold air intake on the internet. But I seriously couldn't believe the difference in performance.

I have already seen what I feel by measuring it.

I'm very curious about your thoughts on what I should do now.

I wrote a little long, but I wanted to explain the situation in detail.

Thank you.
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File Type: csv P58_M4_R45_220430_2205.csv (316.7 KB, 46 views)
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akayya akayya is offline
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Default 05-04-2022, 10:48 PM

Didn't the topic interest you?
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akayya akayya is offline
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Default 05-09-2022, 10:47 PM

????
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akayya akayya is offline
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Default 05-11-2022, 03:15 PM

???
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akayya akayya is offline
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Default 05-11-2022, 03:16 PM

Is there something in my writing that is not understood?
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Default 06-06-2022, 12:27 PM

We need real logs from the JB4, not pictures from a meter.

Just from experience, open intakes work fine as long as the car is moving and theres air passing through the engine bay. They tend to heat soak when stopped and idling. Thats not as much of an issue with a boxed filter, but you're giving up maximum flow. I prefer drop-ins for city cars that sit in traffic, and open conicals for country and race cars that don't stop for any length of time to heat up. Plus the conicals sound so much better.


Mike Levy
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akayya akayya is offline
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Default 06-11-2022, 07:49 AM

Quote:
Originally Posted by Mike_L
We need real logs from the JB4, not pictures from a meter.

Are you sure ?


Quote:
Originally Posted by akayya
I am sending you the logs of the billet intake and the original in-box filter values, which I took the 0-100 and 0-200 values ​​of the vehicle, and the times I measured.

Measured with bms intake kit after line 1079 in log values.
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Default 06-11-2022, 01:32 PM

Yes, I’m sure, because Terry and Steve generally don’t even look at the kind of “logs” you’re providing. They look at the CSV logs from the JB4.


Mike Levy
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shills shills is offline
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Default 06-12-2022, 09:37 AM

Well to me it looks like akayya has attached a JB4 CSV log file in his original post, look right at the bottom below all the graphs - just saying
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Default 06-12-2022, 12:09 PM

Quote:
Originally Posted by shills
Well to me it looks like akayya has attached a JB4 CSV log file in his original post, look right at the bottom below all the graphs - just saying
Its very possible they missed that. I did. Its engulfed in the other crap.


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akayya akayya is offline
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Default 06-14-2022, 07:45 AM

hey @Terry
I have a log file in the first message.. maybe you missed it.
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akayya akayya is offline
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Default 06-14-2022, 07:47 AM

Quote:
Originally Posted by Mike_L
Its very possible they missed that. I did. Its engulfed in the other crap.
also I wonder it ,why the other stuff is crapped ??
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Tips000 Tips000 is offline
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Default 06-14-2022, 08:53 AM

I have noticed that after I put the box back on my injen intake the car runs much better too.

Logs with the jb4 show significant improvement in IAT.
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Default 06-14-2022, 11:21 AM

Quote:
Originally Posted by akayya
also I wonder it ,why the other stuff is crapped ??
Its pretty much useless information. It doesn't tell what the engine is doing. Thats why logging through the JB4 is imperative. It has all the data on what the engine is doing, what the air fuel is doing, etc. Acceleration graphs don't tell us any of that.


Mike Levy
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