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Old 04-04-2006, 05:06 PM   #1
Scooby Specialist
Member#: 87043
Join Date: May 2005
Chapter/Region: NESIC
Location: ct
2006 sti

Default Protuning Questions


I am going to schedule a protune in the next couple of weeks (at XXtuning). I have 2 questions.

1. Do I need a bigger fuel pump? (If i starve on the dyno... i lose my tuning money)

2. I've seen posts that show benefits of 1 step colder plugs. If I put them in do I have to take them out in the winter? If so, what can happen if I don't take them out for winter?

Current Mods:
AP stage 2 (cobb catted dp, stock midpipe, prodrive axelback)
K&N typhoon
Perrin TMIC

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Old 04-05-2006, 01:00 PM   #2
Scooby Newbie
Member#: 28809
Join Date: Nov 2002
Location: Bay Area
2003 WRX Wagon
Platinum Silver Metallic


Don't need to do either with your mods
Jimbo is offline   Reply With Quote
Old 04-05-2006, 02:26 PM   #3
Scooby Newbie
Member#: 69071
Join Date: Aug 2004
Location: Edmonton
2002 Stg2-WRX Wagon
WRB & Dust


If for some reason you can max out the injectors with your mods which is unlikely, you won't lose your money, the tuner will tune for it. You may not get the same top end but you'll still be better off than you are before the tune. A fuel pump never hurts though, you'll probably be stuck with the mod bug like everyone else and need to put one in eventually, if you have the $ to spare, pick one up. Doesn't hurt. Same with colder plugs. One step should be fine, you'll know after you've run them a while if they are too cold. And for $15, what's the harm.. You should have new plugs either way.
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