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guwakjai010 guwakjai010 is offline
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Default Log Review: Fuel issue - 09-22-2019, 11:04 PM

I have two logs. One with Map 6 and this went to Map 4 for low fuel pressure, second log in map 7 which mostly is fine. Recently was able to hands on e85 so needed to dial in on some settings. Was wondering if someone can confirm if the low fuel pressure is caused by LPFP, pump is 2 years old and this is one of the first time i ran e85 on this set up. Not sure if the PI is too aggressive in spraying or the LPFP can't keep up.
Fuel is half e85 and half 93

Relevant Mods:
Pure stage 2 DD
MMP PI
JB4 latest firmware
backend flash via MHD latest flash
Fuel It stage 2 inbucket pump
MMP aluminum inlets
VTT outlets
VRSF 7in Intercooler
VRSF **
N20 Map
Attached Files
File Type: csv 2019-08-30 00_10_43_Map-6.csv (8.0 KB, 55 views)
File Type: csv 2019-08-30 00_18_24_Map-7.csv (8.3 KB, 51 views)
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THE BEAST THE BEAST is offline
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Default 09-23-2019, 01:01 AM

I would run a stage 3 lpfp.
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Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 09-23-2019, 06:18 AM

Could upgrade LPFP or try lowering ethanol to e40


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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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guwakjai010 guwakjai010 is offline
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Default 09-25-2019, 04:02 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Could upgrade LPFP or try lowering ethanol to e40
found a crack on the sending unit of the gas tank. not sure how deep or close to the actual feed line portion. I'm hoping this might be the main contributor for low FP. even idle i see around 52PSI.
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Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 09-26-2019, 12:21 AM

Quote:
Originally Posted by guwakjai010
found a crack on the sending unit of the gas tank. not sure how deep or close to the actual feed line portion. I'm hoping this might be the main contributor for low FP. even idle i see around 52PSI.
Fingers crossed!


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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