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Old 08-03-2009, 08:30 AM   #1
ihadmail
Scooby Specialist
 
Member#: 159315
Join Date: Sep 2007
Chapter/Region: South East
Location: Chapin, SC
Vehicle:
2009 Cadillac CTS-V

Default Fuel Pump

I am adding a 255lph fuel pump to my 05 STi in preparation for larger injectors and turbo in the future. Will I see any real changes, or need to make any corrections due to JUST the fuel pump? I already planned to log it and try to see if anything changed, but I may not log the proper parameters without some guidance.

Current mods are:
-Perrin FMIC
-K&N Typhoon
-Cobb light pulley
-IXIZ A/O Sep
-Port/Polish/Ceramic stock elbows
-APS 3.5" turbo back


Thanks for any assistance, and I did read the tuning guide (quite a few times) and tried to search for my question to no avail.
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Old 08-03-2009, 11:34 AM   #2
the suicidal eggroll
Scooby Guru
 
Member#: 51961
Join Date: Jan 2004
Chapter/Region: RMIC
Location: Broomfield, CO
Vehicle:
2005 STi
2012 WRX

Default

No need to tune for a fuel pump unless you were previously dyno tuned and the tuner hacked the MAF scaling or target AFR to compensate for a weak fuel pump.
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Old 08-03-2009, 01:13 PM   #3
ihadmail
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Member#: 159315
Join Date: Sep 2007
Chapter/Region: South East
Location: Chapin, SC
Vehicle:
2009 Cadillac CTS-V

Default

Sweet, that's what I was thinking. I just wanted to confirm before something screwy started happening and I couldn't find where/why in my logs. Thanks for the straight answer.
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