Thread: The VF48 thread
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Old 12-06-2012, 05:51 AM   #322
FCmaniac
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Member#: 142029
Join Date: Feb 2007
Chapter/Region: Tri-State
Location: Lehigh Valley, PA
Vehicle:
2013 Forester
2004 STi, 1991 Miata BRG

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Quote:
Originally Posted by saundc2 View Post
I have an 02 wrx 2.0L and just bought a vf48. I'm trying to decide what to do for a tune. It looks like a Cobb access port runs $600 new and a Cobb Pro-tune is $400 so I'd be looking at $1000 to do it right. That seems like a lot to pay especially considering the $400 for a tune is only going to last me until I decide to mod further. My friend has a Tactrix cable that I can borrow and he knows someone he claims can tune the car for me. Does anyone here have experience with street tuning through a Tactrix and if so what words of wisdom do you have about going this route vs getting a dyno tune? I was also wondering if anyone has a similar set-up to me and wouldn't mind sending me their map so I have something to start off with. My mod's are as follows:

stock 2.0L block
vf48
05 STI TMIC with y-pipe
07 STI injectors (I believe they are 565cc, same as pinks)
SPT Intake
STI catless uppipe
3" catless TBE
Grimmspeed 3 port ECBS
Walbro 255lph FP

From reading this thread it sounds like I maybe should have gone with DW 650cc injectors. Somebody mentioned the 06 wrx injectors (560cc?) will be running at 97% IDC with this turbo. I plan on getting a wideband O2 sensor so I can monitor my AFR that way if I do toast the injectors I can shut it down before I run lean and kill the turbo. Any feedback on Tactrix cable tuning would be appreciated, and as I mentioned before if someone has a map I can base my tune off of I'd appreciate that as well

Thanks
1. There is nothing wrong with getting a road tune or tuning opensource (as opposed to using a Cobb AP). The key is finding a good tuner. I wouldn't trust some guy just because a friend knows him. I'd try to do as much research as possible to find the best tuners in your area.

2. You don't need to worry about the turbo being killed from a lean AFR. You need to worry about the motor being killed. As long as the tune is safe and within the limits of your fuel, you should be fine.
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