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Tsmith42 Tsmith42 is offline
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Default n63tu not hitting target boost - 05-14-2020, 05:30 PM

i just installed my JB4 and seem to be way under what the target boost is on maps 1, 2, and 5. is there a way to fix this or is it always like that?
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Default 05-15-2020, 10:27 AM

Post a JB4 log if you need tuning advice.

Make sure MAF sensors are unplugged and if you really need to drive boost up to target BCM connections installed.


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Default log - 05-15-2020, 11:09 AM

Here is a log on map 1. i have the MAF Sensors unplugged but i dont have the BCM connections installed.
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File Type: csv 200514_12571.csv (4.7 KB, 49 views)

Last edited by Tsmith42; 05-15-2020 at 11:19 AM..
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Default log - 05-15-2020, 11:17 AM

this is map 0
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File Type: csv 200514_1256.csv (8.9 KB, 47 views)
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Default 05-16-2020, 12:43 PM

On map0 I see a lot of throttle movement, boost is read pre-throttle, so the odd spikes make sense. It smooths out on map1. You can log map2 next for comparison but adding in BCM I think will be next step after that performance wise.


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default log - 05-16-2020, 04:00 PM

This one is for map 2. Are there instructions for installing the BCM i looked online and couldnt find them for the N63TU engine.
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File Type: csv 200515_1409 map 2.csv (8.4 KB, 46 views)
File Type: csv 200515_1411 map 2.csv (7.2 KB, 48 views)
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Default 05-16-2020, 06:50 PM

Looks a lot better on map2.

For N63TU BCM unfortunately we don't have good directions, it's basically the same as the S63TU JB4 BCM connections on our website.


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default Map 6 - 05-19-2020, 09:33 PM

How would I go about getting a custom map 6 I donít know what to change or what settings do what I have an upgraded intake and ******* down ***** as well as the 3.5 tmap sensors
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