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Old 10-05-2008, 04:29 PM   #141
S204 Racer
Feedback Score: 8 reviews
 
Location: Allentown, PA
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Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin header coated!)

Quote:
Originally Posted by amg destroyer View Post
Very nice. Those headers are definitely on my to-do list. Any videos with them on?
None yet..haven't installed them. The can says to wait 7 days for the coating to cure. I did try to put them on anyway, but I can't fit my ratchet on the 02 sensor socket and fit it without sheetmetal getting in the way. I need to schedule an appointment at AREA1320 to get it done.
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Old 10-12-2008, 12:26 PM   #142
S204 Racer
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Location: Allentown, PA
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Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin header coated!)

Thanks to matt, I got and installed the kartboy pitch stop mount today. Makes a nice difference in smoothing out the shifts during momentum changes. very easy to install too, took me 20 minutes to pop off the intercooler, swap mounts, and swap the intercooler back on thanks to helping matt out with his.
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Old 10-14-2008, 05:48 PM   #143
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Car: 09 wrx
Location: ny
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Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin header coated!)

looking good
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Old 10-20-2008, 05:47 AM   #144
S204 Racer
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Location: Allentown, PA
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Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin header coated!)

So after talking with Ryan and Drake last night about my power goals and what I use the car for, they've convinced me that a 20g is the way for me to go with my car. That way I give up basically nothing for spool and get the topend I'd like without it dying off like my 39 does.

Ryan and Drake took my car for a spin on the DD settings that I tinkered with on my T2's and the comments from them had to make me feel great about this entire build so far. Ryan said the handling was insane and the car is a handling monster. Some concern over the twitchiness of the setup with the big front swaybar.

Drake came back and asked who tuned the car because it was the hardest hitting VF39 he's driven. The handling was beyond what he could do on the street and said the steering was really twitchy too.
haha, so I thought about it and I think I know why it's so twitchy to them:

X-Brace, 500/400 spring rates, ALK, RCA, and the Vorshlag plates. My caster is 6.3 degrees as well. Plus, the STi comes with a quicker rack than the WRX did too. Maybe that all conspired to make the car overly reactive to their steering inputs beyond what they're used to. (Here I am considering a Q-Rack so I was a bit surprised when they both said that).

The wideband showed my car hitting 14.6-14.7:1 under part throttle, dipping down to 13.6:1 under partial boost, and going from 10.6:1-10.8:1 to 11.2:1 under WOT. So the AFRs are very healthy. A retune could clean it up some I suppose and with timing and AVCS work, could probably get more power out of it, but I'm happy with it as is.

The car torque steers to the left under WOT, which makes me giggle.

The header coating smells better than the turbo wrap I put on the car a long time ago. Still smells. The Cobb heatshield rattles ( I really should replace it with a Cusco).

After talking about my car use and goals, Ryan and Drake both felt a 20g was the way to go for me. I trust Ryan with my car. Therefore, 20g it is. I plan on the following:

-Spearco TMIC
-Blouch TD06 8cm 20g
-EWG
-TGV deletes
-DW 850cc injectors
-APS 70mm CAI

Still unsure of what up-pipe to run for the EWG with so many cracking, having bad EWG designs, or having a flex section. I'll have to run that by Ryan.

Oh...about the Perrin header. Sound-wise it's a radical departure from the boxer rumble. There is a lot less bass from my exhaust system which I actually like since it was overpowering at times. Ryan says the car sounds like a cross between a 2 liter and an EVO. It sounds pissed off! I kind of like it, but I will miss the burble. ah well. Power-wise, its no contest. It feels like a cork was popped off, very smooth midrange delivery now. When I romp on it, the car accelerates in the midrange a lot quicker than before. I'm going to need better tires to keep this power down at the track.

Well worth it.
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Old 11-11-2008, 06:51 AM   #145
S204 Racer
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Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin header installed!)

Small update and change of mod plans:

Bought a Perrin Stealth TMIC due to the Veteran's Day deal they're running today. It may not be as good as the Spearco, but it'll handle the 20g just as well and cost me half as much. Plus, it'll look a lot better under the hood

Also picked up a GMS up-pipe with Thermo-Tec wrap. I decided to skip the EWG since it is just a 20g and the 8cm exhaust housing will be fine for it. This keeps the setup a little bit more simple and I won't run into fitment issues with my Helix catted downpipe. Oh, and it's also a bit cheaper too.

Next up to buy are the 740cc injectors, an APS 70mm CAI, and the Blouch 20g. Then it'll be time for the tune!
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Old 11-13-2008, 11:06 AM   #146
S204 Racer
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Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin TMIC and GMS Up-pipe Ordere

Another small change in plans, haha. I spoke with Blouch today over the phone and I'm now going to skip the 20g and go with the 2.5R turbo. 47lbs/min and ball-bearing with comparable spool to the 20g. Blouch says it outspools the 20g and will make more power on race fuel if I ever want to do that. Here's a very comparable setup to what I'll be running:

2005 STi - 360whp/362wtq

I'm hoping my Perrin headers help the car outspool those Gruppe-S headers by a few hundred rpms due to the inefficiency of UEL. Plus, those temps that that car were tuned in are hell for a TMIC, I'm sure.

I wonder if I could crack 360-380whp with the TMIC in some PA weather?
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Old 11-13-2008, 04:42 PM   #147
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Car: AW 08 STI
Fav Mod: torque
Location: LV, PA
Posts: 2,170
IWSTI Addict since: Aug 2008
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Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin header installed!)

Quote:
Originally Posted by twiSTies View Post
Small update and change of mod plans:

Bought a Perrin Stealth TMIC due to the Veteran's Day deal they're running today. It may not be as good as the Spearco, but it'll handle the 20g just as well and cost me half as much. Plus, it'll look a lot better under the hood
Same dude, just ordered mine today but get this, I told Mr. Ray TTT about this and he said "just order it from me for the same price" lol. So I did!

Also picked up a bunch of other goodies that'll be coming in over the next week or so
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Old 11-14-2008, 09:50 AM   #148
S204 Racer
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Location: Allentown, PA
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Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin header installed!)

Quote:
Originally Posted by sysfailur View Post
Same dude, just ordered mine today but get this, I told Mr. Ray TTT about this and he said "just order it from me for the same price" lol. So I did!

Also picked up a bunch of other goodies that'll be coming in over the next week or so
Sweet! That's pretty cool of Ray to do that for you
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Old 11-14-2008, 04:50 PM   #149
S204 Racer
Feedback Score: 8 reviews
 
Location: Allentown, PA
Posts: 3,625
IWSTI Addict since: Oct 2005
Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin TMIC and GMS Up-pipe Ordere

I got the GMS Up-Pipe in today thanks to the extra quick shipping of Josh at Import Image!

Here are some pics:

Everything you get in the package.

Quality welds:



Flat flanges (something some companies struggle with!!)




Studs fit perfectly:

Money shot:
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Old 11-14-2008, 05:39 PM   #150
Spec C Club
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Car: AW 08 STI
Fav Mod: torque
Location: LV, PA
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Send a message via AIM to sysfailur
Default Re: My RaceComp Engineered 2005 STi (Updated pg. 5 Perrin TMIC and GMS Up-pipe Ordere

Btw I'll be interested in hearing how your car sounds with those EL headers. I haven't heard one in person. Might even have to bring the vid camera for the meet
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