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Fishingjts Fishingjts is offline
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Question 2021 PowerBoost - 09-05-2021, 07:47 PM

New here and new to the JB4. Truly amazed how well the JB4 works and the results!

So here my question. The Ford calibration brings the boost on very slowly more like a centrifugal supercharger instead of a turbo. Max boost is like 5000 RPM. Is this something that Map 6 might be able to help with? Add a bit more boost in the lower RPMS? I’ve attached the log file from Friday’s Test and Tune ��
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File Type: csv P47_M3_R1_210903_1839.csv (22.0 KB, 37 views)

Last edited by Fishingjts; 09-06-2021 at 05:55 AM..
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Default 09-07-2021, 07:56 AM

Log looks clean, boost and fueling good, timing solid with minimal corrections.

In terms of improving spool speed for this platform we have a few ideas but haven't fully tested them yet. But we hope to improve that in future JB4 firmware updates.
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Burger Motorsports
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Smile 09-07-2021, 09:12 AM

Thanks, Terry!

So my previous experience with Ecoboosts have been that the stock calibration prevents boost from coming on early. I had a graph somewhere showing a before and after with tune. Basically stock max boost was close to 5000 RPM while with a tune it was hitting max boost down around 3000 RPM. Taking with some Ford calibration guys the idea was to have a smooth power delivery so it felt more like a small V8 instead of a turbo car.

So I wasn’t sure if building a map 6 would help that…

Btw so best run of the weekend was on map 5. 13.53@104.76 MPH. I can see in the logs where I ran into the torque nannies and speed limiter! The trap speed is amazing!
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Default 09-07-2021, 11:08 AM

Spool up is pretty good for the EcoBoost platform overall since it's designed for towing. Not much can be done to further improve but we'll keep on trying there.


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 09-07-2021, 12:33 PM

Thanks again!!!

One last favor. Could you take a look at my Map 5 - E30 log? Looked good ok to me but would love a professional opinion!
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File Type: csv P47_M5_R3_210903_2052.csv (34.8 KB, 32 views)
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Default 09-07-2021, 01:59 PM

Looks good to me.
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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 09-07-2021, 02:05 PM

Thank you!!!
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