2007 STi (Planned Mod List)
#17
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Join Date: Feb 2007
Location: Fremont, CA
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Car Info: 93 Camry LE
Originally Posted by EQ Tuning
About the same on the torque gains. The most significant gains you'll see will be in overall response and smoothness of the powerband. That and of course the reliability aspect of taking out the stock pipe which could potentially crack under extreme use.
Thanks
Thanks
3-5 Whp, 3-5WTRQ and smoother power band AND reliability????
Up pipe is pen'ed in.
And Braille > Odyssey...
Braille has longer lasting and more powerful batteries of the same class in comparison.
Last edited by Daweism; 03-04-2007 at 05:39 PM.
#23
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Location: East Bay / Pomona
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Car Info: '02 PSM WRX
Originally Posted by Daweism
And Braille > Odyssey...
Braille has longer lasting and more powerful batteries of the same class in comparison.
#26
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Location: Palo Alto
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Car Info: GT35R, Meth
Originally Posted by Daweism
~~~ Aftermarket Mods ~~~
Performance:
- [Cobb] Stage 2 AccessPORT & Turbo Back Exhaust (304SS Catted) ~ $1825
- [Cobb] Turbo UpPipe (304SS w/ EGT) ~ $235
- [Cobb] Exhaust Hanger (Urethane x4) ~ $43
- [Cobb] Heat Shield (Stainless Steel) ~ $50
- [Cobb] Lightweight Main Pulley (Gold) ~ $135
- [Cobb] Shifter Bushings & Upgraded Tranny Mount ~ $110
- [Cobb] Stage 1 Suspension Pkg (Front & Rear Sway Bars, Rear Strut & Mounts{Std} ~ $525
- [Cobb] Swaybar Endlinks (Front & Rear) ~ $300
- [APS] Cold Air Intake (65mm) ~ $250
- [Cusco] Front Strut (Matching Cobb One) ~ $150???
- [JDM] STi Pinks Springs (Lowers front & rear by 1") ~ $200???
- [JDM] STi Front Bumper Support Beam (18Pds lighter than USDM) ~ $200???
- [Perrin] Header (321SS) ~ $800
- [Perrin] Radiator Shroud (Silver) ~ $70
- [Walbro] Fuel Pump (255LPH) ~ $130
- [Braille] All Season Battery (15Pds {33Pds stock}, CF) ~ $240
- [Braille] Oxygen Lightweight Racing Seat (16Pds {30Pds Stock?}) ~ $900each <-- Probably not due to price
- [Brand TBD] Colder Spark Plugs ~ $50???
- [Brand TBD] High Performance All Season 235/45/17 Tires ~ $500???
- [GST Motorsports] Protune (Hayward, CA) ~ $300???
Weight Reduction:
- Remove Spare Tire & Jack (-50PDS???)
- Light Weight Battery (-18PDS)
- JDM Front Bumper Beam (-18PDS???)
- Lightweight Racing Seats Passenger and Diver (-35PDS???)
- Hallowed Sway Bars
- Lighter Exhuast, UpPipe, Header, Main Pulley
--> [-150PDS Total???] <--
__________________________________________________ ____________________
Performance:
- [Cobb] Stage 2 AccessPORT & Turbo Back Exhaust (304SS Catted) ~ $1825
- [Cobb] Turbo UpPipe (304SS w/ EGT) ~ $235
- [Cobb] Exhaust Hanger (Urethane x4) ~ $43
- [Cobb] Heat Shield (Stainless Steel) ~ $50
- [Cobb] Lightweight Main Pulley (Gold) ~ $135
- [Cobb] Shifter Bushings & Upgraded Tranny Mount ~ $110
- [Cobb] Stage 1 Suspension Pkg (Front & Rear Sway Bars, Rear Strut & Mounts{Std} ~ $525
- [Cobb] Swaybar Endlinks (Front & Rear) ~ $300
- [APS] Cold Air Intake (65mm) ~ $250
- [Cusco] Front Strut (Matching Cobb One) ~ $150???
- [JDM] STi Pinks Springs (Lowers front & rear by 1") ~ $200???
- [JDM] STi Front Bumper Support Beam (18Pds lighter than USDM) ~ $200???
- [Perrin] Header (321SS) ~ $800
- [Perrin] Radiator Shroud (Silver) ~ $70
- [Walbro] Fuel Pump (255LPH) ~ $130
- [Braille] All Season Battery (15Pds {33Pds stock}, CF) ~ $240
- [Braille] Oxygen Lightweight Racing Seat (16Pds {30Pds Stock?}) ~ $900each <-- Probably not due to price
- [Brand TBD] Colder Spark Plugs ~ $50???
- [Brand TBD] High Performance All Season 235/45/17 Tires ~ $500???
- [GST Motorsports] Protune (Hayward, CA) ~ $300???
Weight Reduction:
- Remove Spare Tire & Jack (-50PDS???)
- Light Weight Battery (-18PDS)
- JDM Front Bumper Beam (-18PDS???)
- Lightweight Racing Seats Passenger and Diver (-35PDS???)
- Hallowed Sway Bars
- Lighter Exhuast, UpPipe, Header, Main Pulley
--> [-150PDS Total???] <--
__________________________________________________ ____________________
I'd like to kindly critique your list if you don't mind
Weight reduction
- you forgot about the front subframe, that is like 8 bolts to remove (after removing the underbody plastic) and saves ~25lbs (?)
- Seats cost about the same as a flywheel, the STI's take to LW flywheels well
- CF driveshaft. um I can't 100 percent confirm this but on inertial dynos cars seemed to have gained 20-30whp... there's a huge thread on www.iwsti.com under the drivetrain section.
- the above two depend on whether you go drag racing, lightening rotating mass creates some problems for launching but John Sheppard's Fastest-DSM-in-the-world has a CF driveshaft
Performance
- one of the things with the list you have is it comprises of a lot of "small things" that you will actually have to REMOVE LATER ON if you choose to upgrade further
- for example, the intake, the heat shield (which is not necessary - you should get some thermotec wrap instead, more effective than an aftermarket heatshield which pretty much does nothing the stock can't do - except some can accomodate bigger turbos, but you can just mod your stocker),
- If you go rotated mount (for 500+ hp) you'll get rid of the uppipe and downpipe you currently buy
another thing with the bunch of small things on the list is that realize you could have an 8cm 49lb/min bolton turbo for about 1100 bucks. You can basically bolt that on with your aftermarket exhaust and recommended inlet and TGV deletes (contact Crucial Racing)... and other supporting's, and run 500 horsepower on a pump 100 octane map. Cause Headers at 800 bucks are really expensive for what you get. (don't forget you can sell your stock vf39)
Trust me, the lag of a bigger turbo on a 2.5l is not bad. On the 2.0l wrx/EVO we might be debating whether we want to lose lowend, but it's not bad on a 2.5l
So you really have to ask yourself, do you want to hit the big hitters first or go marginally - because you've listed a lot of stuff that doesn't make THAT much difference in your performance section, and a LOT of wrx owners make that mistake of upgrading small stuff that adds up to getting small performance improvements where they could have gotten huge gains elsewhere
Just my .02
Last edited by verc; 03-05-2007 at 01:59 PM.
#27
I agree. That $800 would be way better spent towards a new turbo than to the perrin header.
Some other things I would consider:
- aftermarket struts/shocks
- Whiteline ALK or the Perrin equivalent
- steering rack bushings
- turbo inlet pipe
- summer tires over all-seasons (you have a beater anyway)
- kartboy short shifter / bushings
Some other things I would consider:
- aftermarket struts/shocks
- Whiteline ALK or the Perrin equivalent
- steering rack bushings
- turbo inlet pipe
- summer tires over all-seasons (you have a beater anyway)
- kartboy short shifter / bushings
#28
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It really depends on what he wants from the car. If he's looking for a relatively simple setup with tons of torque and unmatched response, his mod plans are very apropriate. Not everyone needs/wants a big turbo. This is especially true for pump gas cars that really won't see enough gains from most turbos to justify the response degredation. The stock turbo is really underrated IMO .
#30
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Location: Palo Alto
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Car Info: GT35R, Meth
Originally Posted by EQ Tuning
It really depends on what he wants from the car. If he's looking for a relatively simple setup with tons of torque and unmatched response, his mod plans are very apropriate. Not everyone needs/wants a big turbo. This is especially true for pump gas cars that really won't see enough gains from most turbos to justify the response degredation. The stock turbo is really underrated IMO .
No! He wants to bring the PAIN TRAIN, right Daweism?