coldsubycz

I'm in for this kit if it will work on an '05 LGT. I e-mailed Cobb last month and they replied a week later and basically said "no". But that was one customer service rep. I've been running e85 for 4 years now in MN summers and winters. Having flex fuel would simplify things. If you've never run e85, it's a transformation liquid, lots of fun. Code, I have an AVO380 and AVO FMIC with e85. Just to give you a power difference idea: my car stock on a very, very LOW reading dyno was 185whp and 205wtq. Tuned for e85 I get 335whp and 360wtq.

Turkeylord... holy cow! That was an awesome write up! I wish I would have had that when I did my install last year. Your craftsmanship is above and beyond! If you want to use the drawings I did a few posts up in your write up, go ahead. And if you are coming down by the Twin Cities I'd like you to redo my wiring because yours is so good . Again, thanks for the awesome write up!

Between taking care of the kids today and studying this thread here are some diagrams I drew. I not good with computer drawing programs. The first diagram is for someone just getting into this. The second is optional for someone like me that did the old way of wiring. The third diagram is my current install for comparison. Please review the first "2013 FPCM wiring" diagram to make sure I have it correct.

^ So do you think the NASIOC guys/gals would be laughing at this thread because for them this is "old hat" ?

Just so I can clear this up in my head: You used this MK3 fuse and installed that "plug-n-play" in the fuse box under the hood instead of cutting the wire up by the alternator and installing a diode? If my thinking is correct, which fuse did you replace in the fuse box? (I'm sure I can figure it out, just being lazy, but also want to verify! ) Thanks again for all this work!

I have the same pump that you do. My tuner said the same thing that yours did. My tuner said that my system was running fine, but it seemed that the pump was not "giving it's all". I did the upgraded wiring, albeit last years design and all my fueling issues on e85 went away.

The STI fpcm is "better" than the Legacy fpcm. If you just swap the Legacy fpcm to the STI fpcm there is a "slight" increase in voltage if everything is left stock. Upgrading the wiring and running power from the battery and either running it thru the new STI fpcm or direct to the pump is the only way to up the voltage. I upgraded all my wiring to 10g and used a new relay to run power thru the "new" STI fpcm. But that was soooooo last year . If I was running a larger pump than the DW65c I'd run the wiring like the guys are doing now. If I have time today I'm going to draw out the new wiring to compare with the way I did it.

I'm the guy from (Page 13, Post# 192). A lot has happened/been discussed over the past year since I've done the "original" mod. So like I've said been running my setup for 1 year now with a DW65c/STI FPCM with no problems. Mine is running full power THRU the FPCM. So after reading the rest of this thread I should change my setup to gain direct voltage to the pump AND prevent the FPCM from burning out? Is that correct? OR should I just leave it alone? I wouldn't need to retune after doing this, would I?

I've been running my 04 STI FPCM re-wire project now with e85 (e70 right now) for about 4 months and is working great. Granted I don't drive the car everyday. My tuner was really shocked that my car's fueling problems went away after this mod. So I'm very grateful for this thread! I'm running a DW65c so I'm not pulling the amps that some of the bigger fuel pumps would pull. So I don't think I'm over taxing the FPCM.

I too would like to know as I'm looking at the 5500. Your install looks really nice! You worked the gaps nicely. On a weird side note I'm also in MN and my tuner's name is Shane

^ I might as well say it first.... Any pictures?? Would love to see how well you matched everything up. So you didn't have to over drill any of the screw mounting holes?

Hope you don't mind me asking this in your build thread, but where did you pickup your Suretrac R160 and did it really come with the Spec.b aluminum dif member? Looks like you have installed Whiteline KDT903 rear dif inserts. Why not do the Whiteline KDT906 rear dif mount bushings since it's all out? (Pressing out the old and pressing in the new??) Now you need to install the front dif for the 5MT! I had that put in last year before winter. I'll tell you, one of my most favorite mods. Completely transformed the car. Regular driving, feels just like stock. Pushing it hard in the corners, thing feels like a true AWD car. It just pulls the front out of the corners and snaps everything back into alignment. It feels like it takes away all understeer and oversteer, truely amazing. And I still am on my OEM suspension!

How difficult would this be for someone who has never used this before? I used to make R/C airplanes many, many years ago and used Monocoat for the wings and body. I was okay using that, but not perfect. I like this 3M stuff that you used as it looks like it would hold up to scratches better than paint. Thanks for the link to the dark matte finish! Your install looks awesome!

Sorry to bring this back up.... But.... did you ever post up the brand and color code you used? I'm sure I can figure a color close to yours, but I really, really like the color you used! Plus it has just the right "flatness" to the shine. Not to shiny not to dull.

My 91pump tune was done before I did the STI FPCM mod. I use an APv2 so this will be the first time I will be running my 91pump tune with the newly installed STI FPCM. To clarify I will re-flash with my AP to my pump tune/map. I will not be putting 91 octane in my tank and running my e85 tune/map.