New to the Sti crowd!
Shaggin' Wagon IV
Joined: Jan 2004
Posts: 1,390
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ECUTek, TBE and fuel pump. You'll be in the 310-320 WHP range, same goes for the torque figures. That's 70+ WHP/TRQ for under $2k! You STi guys definatley have an advantage when modding compared to WRX owners.
ASM FTW!
Joined: May 2003
Posts: 1,487
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Originally Posted by Zate
i have yet to see anyone gain 65hp from purely a FMIC swap on a stock STi ..if they did.. that'd be everyones first mod... mostly you get the HP from being able to run higher boost with better cooling efficiency.. but you generally offset that with a bit more pressure drop and more lag ..
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95 Supra Turbo 6 speed
11 SWP STI sedan
95 Supra Turbo 6 speed
11 SWP STI sedan
Doughnut Grease
Joined: Dec 2004
Posts: 374
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Originally Posted by 722ish
I was wondering if someone would say something, because i saw that 65 hp figure and i was a little surprised... im not so sure you get anywhere near 65 hp out of just an intercooler with an otherwise stock or close to it setup, and as cool as a front mount may look, its pointless until actually necessary
Shakotan/Hippari life.
Joined: Dec 2003
Posts: 12,739
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ok, let me put my 2 cents in. i have never owned a subaru,although when i get back from basic i plan to by a wrx. but, the stock top mount is great as long as you dont:
A) turn up the boost
B) drive hard for an extended period of time
because the stock turbo suffers from that little thing called HEAT SOAK!!! i recomend going with the Easy Street Motorsports top mount intercooler for now. with the stock turbo, a new TBE, K&N Sti intake, and the ESX top mount, TSX RFL BOV ( turbo xs blow off valve ) you will have an awesome car. ( of course, add more mods as u wish...lol ) you should also get short shifter, ditch the stock seats-the side bolsters suck for serious driving and they arent good for harnesses( if you have plans for those), and look at a good suspension setup. i also like the look of the charge speed body kit,that is if u are into looks as well as performance. there are so many mods to make to this car, and mostly it depends on how u plan to drive it, your budget, and your taste. good luck with your car!
A) turn up the boost
B) drive hard for an extended period of time
because the stock turbo suffers from that little thing called HEAT SOAK!!! i recomend going with the Easy Street Motorsports top mount intercooler for now. with the stock turbo, a new TBE, K&N Sti intake, and the ESX top mount, TSX RFL BOV ( turbo xs blow off valve ) you will have an awesome car. ( of course, add more mods as u wish...lol ) you should also get short shifter, ditch the stock seats-the side bolsters suck for serious driving and they arent good for harnesses( if you have plans for those), and look at a good suspension setup. i also like the look of the charge speed body kit,that is if u are into looks as well as performance. there are so many mods to make to this car, and mostly it depends on how u plan to drive it, your budget, and your taste. good luck with your car!
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Determined to be famous, destined to be infamous.
-'03 GSX-R 750
Determined to be famous, destined to be infamous.
-'03 GSX-R 750
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yeah and its a STi not a WRX.. already has a TMIC thats much better than the stock WRX one.
Heatsoak is just what happens when you cant move the heat away from the IC .. an IC is just like the heatsink in a computer..it absorbs heat.. with the water sprayer on a stock TIMC it is ALOT more effective than the WRX intercooler.. the STi has a much larger scoop aswell.. better airflow to move the heat out of the IC .. if the IC has absorbed all the heat that it can.. and its not having any removed then it wont be able to absorb anymore from the air passing through it..
this should help you understand how an intercooler works.. and let you make more informed choices. --> http://www.gnttype.org/techarea/turbo/intercooler.html
Heatsoak is just what happens when you cant move the heat away from the IC .. an IC is just like the heatsink in a computer..it absorbs heat.. with the water sprayer on a stock TIMC it is ALOT more effective than the WRX intercooler.. the STi has a much larger scoop aswell.. better airflow to move the heat out of the IC .. if the IC has absorbed all the heat that it can.. and its not having any removed then it wont be able to absorb anymore from the air passing through it..
this should help you understand how an intercooler works.. and let you make more informed choices. --> http://www.gnttype.org/techarea/turbo/intercooler.html
Doughnut Grease
Joined: Dec 2004
Posts: 374
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Originally Posted by Zate
TBE and Ecutek would be my first mods..
i have yet to see anyone gain 65hp from purely a FMIC swap on a stock STi ..if they did.. that'd be everyones first mod... mostly you get the HP from being able to run higher boost with better cooling efficiency.. but you generally offset that with a bit more pressure drop and more lag ..
putting a FMIC on a stock car could result in a small loss in power as the pressure drop means yer getting less psi into the turbo .. ie it might drop from 13 to 12.5 psi .. (just an example) .. i'd love to see some dyno gaphs of a car with just a FMIC added to prove me wrong..i am far from being an expert in this field.
i have yet to see anyone gain 65hp from purely a FMIC swap on a stock STi ..if they did.. that'd be everyones first mod... mostly you get the HP from being able to run higher boost with better cooling efficiency.. but you generally offset that with a bit more pressure drop and more lag ..
putting a FMIC on a stock car could result in a small loss in power as the pressure drop means yer getting less psi into the turbo .. ie it might drop from 13 to 12.5 psi .. (just an example) .. i'd love to see some dyno gaphs of a car with just a FMIC added to prove me wrong..i am far from being an expert in this field.
Your boost will go up with a FMIC not down. After I swapped mine out and before the tune my boost pressure went up from the stock 10psi up to 15 1st thru 3rd gear and 18psi fro 4th thru 6th. You have more air with the FMIC so you're giving more air to the turbo which the turbo can now produce more boost pressure. I've seen it with my own eyes...
After the tune and my boost was set to 20psi on the stock STi turbo.
Guest
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Air in the intercooler never touches the turbo. Air passes through the turbo then into the intercooler, it has nothing to do with controlling boost. The only reason you might see differences with a FMIC like Zate explained is because you now have alot bigger intercooler core to fill as well as the extra piping to fill, all before anything gets to the engine. That's why you can experience a greater pressure drop with a larger intercooler.
Doughnut Grease
Joined: Dec 2004
Posts: 374
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Originally Posted by Billy
Air in the intercooler never touches the turbo. Air passes through the turbo then into the intercooler, it has nothing to do with controlling boost. The only reason you might see differences with a FMIC like Zate explained is because you now have alot bigger intercooler core to fill as well as the extra piping to fill, all before anything gets to the engine. That's why you can experience a greater pressure drop with a larger intercooler.
Guest
Posts: n/a
Ok, here is a quick run down. I also grabbed some pictures from How Stuff Works.
Here goes...
Here is the article: LINK
It's a good read and will get you started on understanding the basics of your car.
Here goes...
- Air enters intake/airfilter
- travels through intake piping and through turbo
- air exits turbo and moves to the intercooler
- charge air exits intercooler and goes to the throttle body/intake manifold
- combustion occurs and exhaust gases are released by the exhaust valves
- exhaust travels through header/manifold and up pipe
- exhaust enters the turbo and spins the turbine, which turns the compressor wheel
- the exhaust gases exit the turbo or the wastegate and continue out through the exhaust
Here is the article: LINK
It's a good read and will get you started on understanding the basics of your car.
