Turbo time!!

[markv]

Question and Answer time.....

Is it some what easy to get to the trbo of the new generation legacy gt's....

the reason is, because im thinking about puting in a blow off valve....(cuz u no know i need that pssssttsss sound when i down or upshift)......

so...is it easy or will it take a long time....or should i just let somoene else do it for me?

[Reason]

So are you asking how har is it to install a BOV?

[markv]

in a sense ...yess,...and is it hard to get to the turbo?

[subyguy522]

Well, my opinion is that it would all depend on how much you know about subaru engines. I parted out a wrx (2.0 turbo) and it took me less then an hour to take the turbo completely out. I would say that i could install a BOV in about 20 minutes as long as there is no welding involved. If its just a bolt on, it should be pretty straight forward, especially with all the instructions that i am sure are online or might come with the BOV.

[Reason]

Well what are you trying to do then? I'm not sure how the 06 Legacy is but most I seen are either installed on the intercooler or piping for a intercooler.

[markv]

yea no welding is needed, its a standard bolt on.....i was thinking that if tomorrow is warm enuff i would take the car out and get to the turbo..to see if its worth my trouble to do it...

[subyguy522]

you don't need to get to the turbo to put the BOV on...

[sheepdog]

Yea you don't. I'm unsure as to where exactly it mounts, but it will replace the stock recirc valve. On wrx's its right on the top mount intercooler.

[Huffer]

LGT BOV's are to the right and just below the IC. (drivers side)
Nowhere near the turbo, which is on the passenger side.

Methinks markv needs to read up on what a BOV is, what it does, and how it relates to the turbo.

[sheepdog]

yea, it's not even really necessary. Oh well

[markv]

well the reason i thought like this guyssss,,,

is cuz my manager at my job(auto parts store(bridge auto parts) told me that the blow off valve is put in a slot on the turbo..maybe they meant for other cars and not mine, but thats why I was thinking that way.....

anyway im probably just gonna read up on it anyway and get an idea of where to put it.....thanks for the comments

[StatGSR]

your manager doesnt know what hes talking about either... maybe he is thinking about an internal wastegate, but the bov is never in any slot on the turbo.

[sheepdog]

Yea he's thinking of an internal wastegate. A BOV is something completely different.

[importtund]

Say I had a T3/T4 turbo fall into my hands today, which included the wastegate and BOV... can someone run a quick list of what else I would need to install it in my wife's 99' 2.5 GT LTD?

[sheepdog]

It's quite an undertaking, you might want to make a new thread about it. You'd still have a significant part list to get it all to work, and you wouldn't really even be able to use the abilities of that turbo without blowing up the engine.

[importtund]

didn't want to start a new new thread for this but....

How much power do you guys think could be made off of rebuilting the ej25 just with cams, new internals and such...I'm estimating that it would cost around 2,000 to do so, but that would be the price I would pay for a new motor to be installed when this one goes, so....

[Huffer]

depends entirely on what EJ25 and whether or not it's boosted.

[GrassyKnoll]

depends entirely on what EJ25 and whether or not it's boosted.

im guessing boosted (see above posts)


you could probably get at least 900 whp out of it...

:roll:

no idea sorry :P

[importtund]

depends entirely on what EJ25 and whether or not it's boosted.

im guessing boosted (see above posts)


you could probably get at least 900 whp out of it...

:roll:

no idea sorry :P


That was merely a just "wonding post" it's N/A and really doesn't have anything done to it right now, I'm in that stage I guess where I'm really unclear about what the hell I wanna do with this thing.... just looking at all my options and trying to be open minded....

[sheepdog]

Basically, to rebuild that motor to a point where you could utilize that turbo, you'll need to either 1. get rid of that motor and swap a turbo motor in, or 2. rebuild the motor with a turbo block, and piece together the rest of a turbo kit.

A good starting point would be to look up a turbo kit made for an Impreza 2.5RS, and use the list of what comes in that kit to judge what else you need to turbo your current motor. Then, you can worry about rebuilding the bottom end of the motor, but as I said before, I'd recommend just going to either an EJ205 or EJ257 block (ie, wrx or STi block). You can get an STi block for 1600 bucks ish last I checked.

[Sarra]

Yeah, sell the block, ECU, transmission, axles, brakes, wheels, and tires, and then go get a new block, ECU, transmission, new axles, brakes, wheels, and tires. This way, you won't have to worry (as much) about having your transmission turn into a paste composed of metal and transmission fluid, you won't have to worry about having insufficient brakes, and you'll have traction to keep your ride shiney side up.

[sheepdog]

actually, your stock tranny will hold up just as well as a wrx one. brakes aren't a bad idea though.

[Sarra]

actually, your stock tranny will hold up just as well as a wrx one. brakes aren't a bad idea though.

Stock tranny + EJ257? I think not. A WRX motor would be okay on the stock gearbox, though, as you said.

[rougeben83]

actually, your stock tranny will hold up just as well as a wrx one. brakes aren't a bad idea though.

Stock tranny + EJ257? I think not. A WRX motor would be okay on the stock gearbox, though, as you said.

Tell that to the 300hp+ RS-T owners still using their RS trannies.

[Reason]

Yea if you drive the car normal you be ok. You start to lay the hammer I may not last as long as a WRX tranny. I don't see a RS tranny lasting as long as a STi tranny from excessive hard launches. In that case granny shifting FTW, ask ooberdoob about that. :grin:

[sheepdog]

You can screw up an STi tranny by doing launches just as easily.

You can get away with the stock gearbox. However, you can go to a built or STi tranny if you want, it's just more money, a lot more.

[Reason]

No kidding, but what I'm saying its easier to blow up a tranny built for less power than one built to handle it.

[Sarra]

actually, your stock tranny will hold up just as well as a wrx one. brakes aren't a bad idea though.

Stock tranny + EJ257? I think not. A WRX motor would be okay on the stock gearbox, though, as you said.

Tell that to the 300hp+ RS-T owners still using their RS trannies.

I've talked to people with stock 2002 WRX's that have no second gears anymore...

[scottzg]

i love threads like these

[importtund]

Ok, I'll make it easy for the sake of forum members, and say I'll just keep the same foundation I have and just put minor mods on it ;)
easy enough :lol:

[sheepdog]

haha. You wandered into another SWAP VS. TURBO N/A discussion! Kinda.

In terms of the trans, yea, you can break them with a stock motor. It all depends on how you drive the car. That's all I was trying to say. If you have straight cut gears, you can abuse the crap out of it all you want.

[Huffer]

Abuse is abuse. You'll still end up breakin' stuff no matter how you drive.

"I know a guy" who is running 320whp 2.0l WRX wagon that's still using the stock transmission.
Has done, for over 20,000miles on that same 320whp setup.

He never launches the car, and he's a slick shifter.

[rougeben83]

actually, your stock tranny will hold up just as well as a wrx one. brakes aren't a bad idea though.

Stock tranny + EJ257? I think not. A WRX motor would be okay on the stock gearbox, though, as you said.

Tell that to the 300hp+ RS-T owners still using their RS trannies.

I've talked to people with stock 2002 WRX's that have no second gears anymore...

And for every 1 person bitching about how they broke their 02 transmission, there's like 10 people running around in their stock WRX's doing perfectly fine ;).

Honestly, it's like what a bunch of people said, it's all how you drive it.

Anyway, asking for what you should do on forums is kind of stupid because everyone has their own answer and they'll defend it to the death. So yeah, pick the path you want to go with yourself and then ask as to how it can be done, but only when you're willing to do some work in looking stuff up yourself.

[Reason]

Anyway, asking for what you should do on forums is kind of stupid because everyone has their own answer and they'll defend it to the death. So yeah, pick the path you want to go with yourself and then ask as to how it can be done, but only when you're willing to do some work in looking stuff up yourself.

I agree 100%, do it yourself and let us know how it turns out for you. Theres a lot of misleading information on all forums IMO.

[Huffer]

^^^ for once, Shane and I agree. ;)

[Reason]

^^^ for once, Shane and I agree. ;)


Oh no...did hell freeze over?? :wink:

[Huffer]

:lol:

[Sarra]

Anyway, asking for what you should do on forums is kind of stupid because everyone has their own answer and they'll defend it to the death. So yeah, pick the path you want to go with yourself and then ask as to how it can be done, but only when you're willing to do some work in looking stuff up yourself.

I agree 100%, do it yourself and let us know how it turns out for you. Theres a lot of misleading information on all forums IMO.

Misquote. :p

Good luck, either way you go. ;)

[02LGT]

just delete the silencer. It will give you nice spooling sound and lil bit of pshhhhhht...u dont need BOV unless you go overboost.