hey guys i need help on which mods i should get first. i have an 03 wrx and i don't know if i should get the catback exhaust, coilovers, or turbo timer first? also wut would be the best catback, or coils for the suby. hopefully you guys can help me because i'm so used to modifying hondas cause i also have a teg. also, does the down and up pipe really help on the rex?
The link 9d2TSi gave seems to be alright, I've heard opposing arguments about some of the upgrades in that guide though. That guide says a turbo timer is a "MUST", but from everything I've read a turbo timer isn't really necessary, as the turbo is cooled after the engine is shut off by a passive cooling system, as well as the fact that the turbo, being inter cooled, generally doesn't reach temperatures high enough during daily driving to warrant a turbo timer, correct me if I'm wrong guys. Coil overs are a good way to go with suspension, but can make your ride more harsh, if you're not going to do any racing or autoX right away, you could save this mod for later, as the stock suspension takes a lot to max out on public roads, and if you're taking corner's fast enough on a public road to need a stiffer suspension, you might want to slow down a bit. Sway bars might be a better first choice, won't affect the ride as much, take away some of the body roll, and give you a more pleasant cornering experience. Cat back is 100% preference on what you want for sound, and looks. Theres tons of choices out there ranging from near stock sound to all out ear piercing fart cannons. Check out http://www.clubwrx.net/forums/showth...?t=58111&pp=20 for some sound clips on various exhausts. As for the up and down pipes, they help significantly on the 2.0's. You car has 3 factory cats on it, replacing the up and down pipes will eliminate all 3, unless you go with a catted downpipe. Most people estimate a downpipe and up pipe combo can net about 20 whp, possibly more with engine management. Cobb sells an ECU reflashing tool called an Accessport, www.cobbtuning.com, which they say with the accessport, and turbo back exhaust combo it can net 60 whp (known as Cobb stage 2).
Engine management should be the first mod. Flowed by down and up pipe, and TBE. I am running the Cobb AP with HKS up and down and a STI TBE. As for the coilovers, I run the HKS Hipermax, the are not to stiff on the street and handle my R rubber on the track. Also if you are still on the RE92 replace them, a good set of tires will make the car handle much better. The TT is joke on a car with oil and water cooled turbos, like ours.
The link 9d2TSi gave seems to be alright, I've heard opposing arguments about some of the upgrades in that guide though. That guide says a turbo timer is a "MUST", but from everything I've read a turbo timer isn't really necessary, as the turbo is cooled after the engine is shut off by a passive cooling system, as well as the fact that the turbo, being inter cooled, generally doesn't reach temperatures high enough during daily driving to warrant a turbo timer, correct me if I'm wrong guys.
I would advise it as one of your early upgrades, especially if you are new to turbo cars... Our turbos are water cooled and oil lubricated. They are cooled passively after the car shuts off but when the car shuts off, so does the oil pump which means your turbo is now spinning with no lubrication. I've seen some turbos keep spinning for up to 2 minutes after the car was given enough gas to make boost and then immediately shut off... Get a turbo timer... they are cheap and they can provide you with some layer of protection, unless you don't mind sitting in your car for a few minute or two before you turn it off.
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Patrick - 2007 STi Limited
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If you do get a turbo timer, check the laws in your state, in PA, it's illegal to have a car running without anyone in it in a public place. It's alright in your driveway, but if its on the street or a parking lot its not. Also, if a turbo spins for up to 2 minutes after throttle and immediate shut off, why don't you just not goose it before you shut it off?
I am also fairly new to owning a turbocharged car, which is my WRX. I found out that turbo timers are not necessary, because the turbos are watercooled. Plus, by the time your 'hard' drive is over, and you are cruising to your destination, the turbo has had a chance to cool down.
That's $150 you could put towards stainless steel brake lines and higher temp brake fluid to enhance your car's braking system.
I am also fairly new to owning a turbocharged car, which is my WRX. I found out that turbo timers are not necessary, because the turbos are watercooled. Plus, by the time your 'hard' drive is over, and you are cruising to your destination, the turbo has had a chance to cool down.
That's $150 you could put towards stainless steel brake lines and higher temp brake fluid to enhance your car's braking system.
Or you could not take your girlfriend out for dinner and instead, just rent a movie, and then look on the classifieds on various sites and get one for less than $50 and then go to Sport Compact Only and pick up the harness for like $8 and then you just spent $60ish dollars and you got a Turbo Timer, and got to "watch" a movie with your girlfriend.
And the $100 you would have spent on the TT you can save for the stainless steet brake lines and higher temp brake fluid... or maybe... beer!
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Patrick - 2007 STi Limited
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Uh, a turbo timer isn't going to keep the oil pump running after the car shuts down. So the turbo will still be spinning with no oil being pumped to it. Just do what speedogomer said, quit hitting the throttle after you park it.
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Uh, a turbo timer isn't going to keep the oil pump running after the car shuts down. So the turbo will still be spinning with no oil being pumped to it. Just do what speedogomer said, quit hitting the throttle after you park it.
Never said it would. All it will do is let the car idle while heat distributes after you are done driving it. This is especially nice for those of us who do not have time to sit there for a minute after driving to work or something like that. Never really understood the anti turbotimer people... it's not like there is any harm in getting one and you can find them used for cheap and in the scheme of things, if it makes my turbo last another 20k miles on top of what it was going to last then I'd say it was a pretty nice investment.
To each his own though... if you don't want one then fine, but they definitely aren't as useless as a lot of people on here make them out to be.
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Patrick - 2007 STi Limited
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