Top end on the new WRX's

[fatninja19]

my friend has a 2002 subaru wrx 5 speed. according to him, he accelerates quick up to around 80 mph and then the power isn't there anymore. he says this is caused by the AWD system. i refuse to believe this, but someone please tell me if this is true. also, what is the 1/4 mile time for a stock wrx?

[chebbiesux]

i test drove a wrx, they go like a bat out of hell and than they probably resemble your minivan after 145 kph.
they say they are 14 second rides but i don't think it would have taken my dart and i ran a 15.8 with it

[Tuarus SHO]

Over on cluwrx.org Many people complain about the lack of top end. And I raced one on the freeway, and can vouch for that.:o

[NB8CT]

Get a intake, turbo back 3" exhaust, and a vishnu up-pipe (www.vishnuperformance.com) to replace the cat that leads into the turbo (yes there is a cat pre turbo on the WRX!!)

Do that and it will breath, it'll pul to redline no problem then; in all gears!

Your freind is just making reasons why his shit aint fast!!

[Polygon]

Personally it just seems to me that the WRX has short gearing, thus why it can go 0-60 in 5.4 seconds with only 227 horses at the flywheel to work with. I had suspected that it would have no top end.

[Gonthrax]

Originally posted by NB8CT
Get a intake, turbo back 3" exhaust, and a vishnu up-pipe (www.vishnuperformance.com) to replace the cat that leads into the turbo (yes there is a cat pre turbo on the WRX!!)

Do that and it will breath, it'll pul to redline no problem then; in all gears!

Your freind is just making reasons why his shit aint fast!!

Whaaaat What exactialy does the pre-turbo cat do? Unless I've been lied to for a very long time a cat cleans exhaust gasses and there arn't any exhaust gasses in the intake stage


Any how, yes the WRX's are rather gutless off boost and at above 80-90mph. But they are rally bred and it shows. Thats alright though, as long as you realize this and realize that there are ways around it.

[NB8CT]

Its there to cut down on startup emissions. The cat is just before the turbo inlet on the exhaust housing. The cat warms up quick 'cuz its so close to the exhaust ports of the engine; hence lower startup emissions. It also cuts a hella lot of air from getting to the turbo. Its a big bottle neck on the WRX. If you check out vishnu's site (link above) they have a "stage 0" that replaces the pre-turbo cat, and supplies a uni-chip. That alone gave a 41whp gain!!! Thats not even with a cat-back!

[Super Spec V]

I have no idea where all you people who think the wrx is slow on the top end get your facts from. Maybe if you own the car and drive it you will be able to post an opignion, but untill then nobody who has.nt driven it should talk.

I own a T REX and and just put a customer 3" cat back exhaust with high flow muffler, and let me tell you it will blow away half of the junk on the market right now. my 5th gear keeps pullin and pulling and pulling and pulling right past your ass.

So for all you non belivers, whenever you wanna try to prove your opignions correct. call me up and well hop on the highway, and then we wil see whos slow.

[Gonthrax]

Originally posted by Super Spec V
I have no idea where all you people who think the wrx is slow on the top end get your facts from. Maybe if you own the car and drive it you will be able to post an opignion, but untill then nobody who has.nt driven it should talk.

I own a T REX and and just put a customer 3" cat back exhaust with high flow muffler, and let me tell you it will blow away half of the junk on the market right now. my 5th gear keeps pullin and pulling and pulling and pulling right past your ass.

So for all you non belivers, whenever you wanna try to prove your opignions correct. call me up and well hop on the highway, and then we wil see whos slow.

I have driven the car, quite a bit actually. Yes it's quick, yes it's quicker then most normal cars in all parts of the spectrum, but compaired to other performance cars it's gutless once you get above 80-90mph. Even most people who own them say this!

[Super Spec V]

SURE WHATEVER. BRING IT ON.
THE NEW SCOBBY T REX IS NOT SLUGGISH. I GUESS THE PEOPLE WHO OWN ONE OR THE ONE YOU'VE DRIVIN ARE LEMONS.

[Gonthrax]

Originally posted by Super Spec V
SURE WHATEVER. BRING IT ON.
THE NEW SCOBBY T REX IS NOT SLUGGISH. I GUESS THE PEOPLE WHO OWN ONE OR THE ONE YOU'VE DRIVIN ARE LEMONS.

Ok, apparently you arn't understanding what I'm saying... Lemme break it down for ya.


What I'm (Me, the poster, GonthraX) saying is this. I like ( as apposed to dislike) the WRX. It is a quick (not slow, not blisteringly fast) car. Because of it's rally (races raced on a dirt, asphalt, or snow track were car's do not race neck and neck, they simply run the course and times are compaired) bred design it accells in 0-80mph performance. It goes like stink (Quickly) up untill 80-90, after that (once you have reached these speeds) the rate at which it accelerates begins to deminish. This is due in part to the small turbo (Dropoff of high RPM power) and it's gearing. I'm not saying the "NEW SCOBBY T REX" is sluggish, it is anything but sluggish (on boost anyway ). What I am saying (and have been saying for a while now) is that in comparison with other performance cars the Impreza WRX will not accelerate as quickly as once above 80-90 mph!!!

[Super Spec V]

IM GLAD THERE IS A MUTUAL UNDERSTANDING.

I JUST WANTED TO KNOW WICH CARS ARE YOU COMPARING THE REX TOO. IN 80MPH AND ON ACCELERATION?

[Gonthrax]

Originally posted by Super Spec V
IM GLAD THERE IS A MUTUAL UNDERSTANDING.

I JUST WANTED TO KNOW WICH CARS ARE YOU COMPARING THE REX TOO. IN 80MPH AND ON ACCELERATION?

I wasn't really compairing it to anything. Just that someone who went from zero, or low speeds, to top end would notice that it pulls significantly harder up to 80 or so and then weakens a bit from then on.

[chebbiesux]

and let me tell you it will blow away half of the junk on the market right now. my 5th gear keeps pullin and pulling and pulling and pulling right past your ass.

that's funny, because i have a talon that's ten years older than your car and i am pretty sure you wouldn't be able to see the talon's ass end anymore by the time i got into 5th gear.

and another thing, i did drive a wrx. for a car that runs 0-60 in 5.4 seconds it sure doesn't run the 60-100 like it should. but now that i know about that precat turbo, that would seem like a pretty wicked way to kill power for insurance and such. it would spool up much faster, and it would help the power up at the high rpms

[Gonthrax]

Originally posted by chebbiesux


that's funny, because i have a talon that's ten years older than your car and i am pretty sure you wouldn't be able to see the talon's ass end anymore by the time i got into 5th gear.

and another thing, i did drive a wrx. for a car that runs 0-60 in 5.4 seconds it sure doesn't run the 60-100 like it should. but now that i know about that precat turbo, that would seem like a pretty wicked way to kill power for insurance and such. it would spool up much faster, and it would help the power up at the high rpms

I'd like to see someone put a nice big hybrid turbo on one. Highflowed, 50 a/r or so. Get the head ported and polished, other little things to reduce lag. But major power in the high RPMs. Perhaps a new box, 6 speed would be nice

*Edit*
To thread starter, the part about lack of high end being because of 4wd. There is a larger loss of HP and Torque because of the 4 wheel drivetrain, but it's lost across the board, speed doesn't matter. I'm not sure what the actual number lost is, but I'll dig around.