Tuesday, April 7, 2009

SUBARU BAJA TURBO 5MT CLUTCH





Turns out my throwout bearing is making some noise so I've decided to

UPGRADE TO EXEDY STAGE 1 ORGANIC CLUTCH. Capable of 300 wtq.

I called Stevens Creek Subaru and the Parts Rep over there was kind enough to cross reference clutch #'s to make sure I ordered the right one.

From Feb 2005 to April 2006, we would use clutch kit 15802 from Exedy. Exedy does not show a listing for the 06 Baja Turbo, but it is the same as the 05. DO NOT ORDER LGT CLUTCH 15804.

I've purchased my: Clutch/Flywheel, STI VF43, STI TMIC, Walbro 255lph from the guys at

Sunday, July 20, 2008

"Chasis Bumpstop Measurements"



The picture above is a piece between the chasis and the rear upper control arm. Notice the "clean" area on the RUCA. I attempted to remove it but was unsuccesful. I am pretty sure it's bolted through on the top side of the chasis. Looks like I'd have to remove some bed panelling to gain access. I'm gonna try and pull some diagrams from Subaru to save me a bunch of time.

The hex area of the bumpstop is 75mm in diameter for all intensive purposes.
I also measured the maximum stroke on the Zeal damper ~ 3.5", this was the exposed shaft area. I am assuming the bumpstop is inside of the damper tube and hope it's not going to subtract from the measured stroke. I will call Endless to find out more information.

I then proceeded to measure how much stroke is lost when the suspension is loaded and i measured approx 60mm (2.36" ~ 2.4"). As a result leaving me with only 1" of stroke.

NTS: Find out relative costs to 1. U/M spacer adaptor. 2. Longer stroke Dampers for rear.
Ultimately a longer stroke damper or longer threaded tube would be ideal for what i want. 2-3" longer is perfect.

-RG

Saturday, July 19, 2008

Baja Dumped On Zeals with Enkei 17" RPF1



Mission Accomplished with a few minor adjustments to be made.
1. Modified the Zeals to work on the Baja, PnP now. - One offs baby!!!!
2. Custom Matte Black Enkei RPF1 17x8 +35 5x100 with Pirelli Pzero Nero M+S 235/55/17
Issues to be resolved:
1. Car sits too low in the rear. Need to produce a spacer for the uppermount ~ 2-3"
2. Need to possibly trim the "chasis" bumpstop.
3. Need to purchase adjustable rear lateral links. Camber is non-adjustable in rear.
Current Alignment Settings:
FL/FR: -2.2
Caster: +3.1, oem = +2.8
Toe = 0
RL: -1.9
RR: -2.2
Toe = 0
Ride Height:
Factory ~ 29.5" ground to center of front and rear fenders
Zeal MAX Height Front: ~29.0", LOW - scraping frame
Zeal MAX Height Rear ~ 27.0", LOW - TUCKING NICE.....
My end goal is to get up to 29" in the rear and i'll be a happy camper.
- RG

Friday, July 18, 2008

GD WRX Lateral links and End links selection



"Note the enormous angles and try to now envision the opposite end of the bar with a mirrored extreme of this. Then add a 24mm swaybar and 1g of cornering load to this equation and you can start to see what happens when its driven hard. " -Jim of WhiteLine AU

I'll be changing endlinks soon on the Foz and want to make sure I select a good compromise between something I can drive on the street, but feel confident enough to push it on a closed course when the opportunity presents itself. I will eventually upgrade the OEM lateral links (control arms) since I can run more/less rear camber if desired, not to mention set the car up for better rear traction when lowered.

There seems to be a lot of people buying more of what they don't need for their street cars. I see this in many car circles, it's not just a Subaru thing. While I'm all for tricked out race parts, there needs to be a happy medium for a car that is still driven primarily on the street. Running full "heim joint" anything on a street car usually sounds like a bad idea to me. That's just asking for too much NVH (Noise, Vibration, Hardness) and great way to make a new car feel old very quickly. With all the great polyurethane bushings available now days, why go through the head ache?

A good read on lateral links and endlinks, particularly what Jim from WhiteLine has to say on the subject. Read his responses on page 2: http://forums.nasioc.com/forums/showthread.php?t=453813&pp=25&highlight=spherical&page=2

Here is a decent install page I came across:
http://www.dirtyimpreza.com/forums/showthread.php?t=4567

I will be going with flexible bushings on both sides of the lateral arm since this is still a street car. I've seen a few control arms that have a flexible bushing at one end and a heim joint on the opposite end. That would still probably be acceptable, but still more than what I need.

-VL

Wednesday, July 16, 2008

BAJA vs. Legacy Dampers















http://homepage.mac.com/chris_stewart/PhotoAlbum20.html

BGT vs WRX 4P/2P Measured

So VL and I got together and took some quick "visual" measurements and discovered that

WRX 4Pot fronts PnP on BGT

WRX 2Pot rears however are not close at all.
2Pot distance between caliper bolts ~ 114mm,
BGT ~ 137mm

I need to get my hands on a 05LGT so i can measure their mounting points.

Also tried fitting impreza STB on BGT and it almost fit, but not quite.

I will be assembling my coilovers and doing an install in my next post along with the 4Pot fronts.

-RG

Final Drive Ratios/Tire Sizes






























BGT - 4.44
FXT - 4.44
2002 WRX - PENDING
STI - PENDING
I still need to get the Transmission Gear Ratios for each of these.
As you can see Subaru did compensate for the BGT and FXT larger tire diameters.
WRX - 205/55/16
FXT - 215/55/16
BGT - 225/60/16
Here's a great tire calculator:
http://www.miata.net/garage/tirecalc.html

Our recommendations for upgrading tire sizes:
WRX - 225/40/18
FXT - 225/45/18
BGT - 235/50/18, 245/45/18, 255/45/18
-RG

SUBARU SPRING RATES











Here's a link to Nasioc where they are listing various spring rates:

http://forums.nasioc.com/forums/showthread.php?t=695688

Our Baja and Forester aren't listed here so i will try to get that information shortly, along with these values:

1. Spring length
2. Coil Diameter
3. ID/OD top and bottom
4. Spring weight

Found curb weights to compare with also

BGT: 3610
LGT: 3365
STi: ~3300
06 WRX: 3192
FXT: 3310
Outback XT: 3500

- RG

More Rotor Research























Baja GT - 316mm Front and Rear
LGT Front
RB OE Caliper Rear Brakes with 2 Pot or LGT Caliper

If we wanted to do 4Pot WRX Fronts we would need to use

Front
2 Piece STI Rear Rotor Ring 316x20
http://www.racingbrake.com/STi_REAR_p/d205-01-311.htm
Then produce caliper bracket for 4 Pot and possibly use shims for the pads.

Rear
316x18
http://www.racingbrake.com/LEGACY_GT_REAR_05_08_p/2060-141-0.htm

Mel's Upgrade:
06WRX Upgrade - 316x20, 316x18
STI Hybrid Rears
RB OE LGT 2POT WRX Mod




Intro: Two somewhat similar Subies, two different routes

Whether choosing to build a pumped up daily driver, canyon carver, show queen, or full blown track car, Bajas and Foresters are generally not on the list. As far as the import enthusiast world is concerned, Subaru Bajas and Foresters are not the first choices one thinks of when selecting a Subaru AWD platform. Let's face it, they just don't fit the image of "cool" when they roll off the assembly line. What is very cool is the simple fact that both cars come available from the factory with a turbocharged 2.5 liter flat four, AWD, and most OEM along with after-market goodies for the WRX and STi will bolt right up to either one. When it comes right down to it, both these cars are wolves in sheep's clothing. Sleepers just don't get much better than this right out of the box(ERR)!

While RG and I (VincenzoL, Enzochan, fchoncho, and OldSchoolJunkY on some of my favorite forums) will both be modding our cars in many similar ways, they will still be quite different. Similar in the fact that they both can accept many of the same mods since Subaru cars are notorious for their interchangeability with OEM components. The Forester is based on an Impreza chassis while the Baja is built on a longer wheelbase Legacy chassis. With my '08 Foz I will be lowering it the proper way, using all OEM parts to give it the ride height and correct suspension geometry of a GD chassis WRX, while RG will be trying to improve his suspension handling and still retain his Baja's higher ground clearance. Two cars with interchangeable parts resulting in two very different results. One for outrigging, the other for corner carving.

- VL

Tuesday, July 15, 2008

Pics of WRX 4Pot/2Pot Brakes

Just thought I'd show you guys what we're hoping to put on our cars:

Introduction Junkyard Upgrades - Brakes & Coilovers



Enzochan and myself are going to begin documenting our OEM Junkyard experiments on this Blog site. We hope this will aid other suby owners in finding affordable mods at bargain prices. This blog site will not be open for comments, please feel free to send us an email and we'll be happy to incorporate your information with references.

I have a 2006 Baja GT, while Enzo has a 2008 Forester XT.

We did some bench testing on the internet and discovered this:

1. BGT - RimGuru has 294mm fronts, 290 rears. We know the 06+ WRX 4 pots fronts will bolt right up and now think the rears might also since it's the same rotor.

Baja GT has GD Impreza Front suspension, and BP Legacy Rear Suspension. This should be the same for all BH Chasis legacy as well.

2. FXT - Enzo has 294mm fronts, but only 266 rears. Therefore he will definitely need to buy some rotors for the rear.

I have some LGT Zeal coilovers on hand and am going to swap out the Front uppermount to make SUPER BOMB ASS COMFORTABLE ZEALS for my BAJA-RU.

Pics will come shortly along with measurements.

Peace, RG