Turbo on a 2.5?
#106
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Car Info: 1997 Impreza, 2014 BRZ
I think someone brought up on a forum somewhere that they had some trouble fitting a downpipe from the AVO kit due to clearance with the automatic transmission. Maybe it was another kit, but it'd be good to check first, before you make any decisions.
#107
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Join Date: Jan 2005
Location: Vancouver, B.C., Canada
Posts: 11
Car Info: 2001 Subaru Impreza 2.5RS
yea..I wrote into rallitek and mentioned that my car's AT but he didn't make any notions about it. I sure hope it doesn't affect the kit (or any other for that matter).
hypothetically speaking, if I were to go with the avo kit and to prep for it, which headers and cat backs are recommended?
oh..this might be a dumb question, but are turbo backs systems both cat and exhaust directly bolted from the downpipe?
hypothetically speaking, if I were to go with the avo kit and to prep for it, which headers and cat backs are recommended?
oh..this might be a dumb question, but are turbo backs systems both cat and exhaust directly bolted from the downpipe?
#108
I am considering turboing my 2.5, and read up on the all the issues.
So the only thing I am wondering if anybody has intalled the AVO turbo and has there engine blow up?
Does this site allow to setup a Poll?
So the only thing I am wondering if anybody has intalled the AVO turbo and has there engine blow up?
Does this site allow to setup a Poll?
#109
Your engine is going to blow up from normal use...
But seeing as the turbo would be used for speed and nothing really else, it would be smart to get some new injectors and internals before you stick that bad boy turbo in your engine bay.
But seeing as the turbo would be used for speed and nothing really else, it would be smart to get some new injectors and internals before you stick that bad boy turbo in your engine bay.
#110
Turbo my RS?
People that want to turbo their RS should just buy a WRX because at the end you will have spent a ton of money and ended up with a car capable of producing less power. If you want to have a RS turbo just put a STi swap and call it a day. haha My two cents
#111
The only arguement on that one is if you want a more personally touch with your car, but as far as whats cheaper and more effective your completely correct. Tho I think what i'll be doing in the end (a few years away) is replace mine with a racing block, instead of a sti swap
#112
Quick story; Last year I used to fill my Corvette with 94 octane by sunoco. Recently, they did away with 94 octane. Turbo cars need to run on 91-93 octane. I would not rule out 93 octane dissapearing in the near future. My 2.5 runs great on 87 octane gas. Moral of the story is if you already own a 2.5i, forget the turbo and do every mod possible, intake, pulley, weight, to make the car perform well on cheap gas. Wouldn't it be great to have a car that can almost perform as well as a Wrx and save you a 50 bucks a week in gas in addition to being more reliable? If you still want a turbo, go buy a wrx.
#114
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Originally Posted by fastbackl48
Quick story; Last year I used to fill my Corvette with 94 octane by sunoco. Recently, they did away with 94 octane. Turbo cars need to run on 91-93 octane. I would not rule out 93 octane dissapearing in the near future. My 2.5 runs great on 87 octane gas. Moral of the story is if you already own a 2.5i, forget the turbo and do every mod possible, intake, pulley, weight, to make the car perform well on cheap gas. Wouldn't it be great to have a car that can almost perform as well as a Wrx and save you a 50 bucks a week in gas in addition to being more reliable?
Originally Posted by fastbackl48
If you still want a turbo, go buy a wrx.
#115
Registered User
Join Date: Jan 2007
Location: Southern Colorado
Posts: 156
Car Info: 07 impreza 2.5i
Originally Posted by BAN SUVS
Putting a turbo on an RS or 2.5i has nothing to do with money. It's smiles per gallon that people are after.
This is certainly the easy way, but some of us are hard headed!
This is certainly the easy way, but some of us are hard headed!
and the N/A's (RS/2.5i) have cheaper insurance rates compared to WRX/STi's :P
#117
On Rallitek's site it says the AVO Turbo is safe up to 6 PSI. Does this mean that the 2.5i's stock internals can only handle this turbo until 6 PSI?
If that's the case, it doesn't seem too difficult to reach more boost by doing some internal work, and maybe upgrading the clutch (on MT). Well, I guess you'd have to also get a fuel control system for delivery adjustments, boost controller, and turbo timer, then run an ECU adjustment/tuning (I'm guessing you could do this with the PP6), but I'm not sure what else.
How much power do you think the stock drivetain is good up until as well?
BTW, I'm specifically referring to the '07 2.5i.
If that's the case, it doesn't seem too difficult to reach more boost by doing some internal work, and maybe upgrading the clutch (on MT). Well, I guess you'd have to also get a fuel control system for delivery adjustments, boost controller, and turbo timer, then run an ECU adjustment/tuning (I'm guessing you could do this with the PP6), but I'm not sure what else.
How much power do you think the stock drivetain is good up until as well?
BTW, I'm specifically referring to the '07 2.5i.
#118
funny i love how people say putting a turbo on these cars requires a timer, fuel pump, etc etc etc...yet those with WRX's and STi's end up putting those on their car anyway when they upgrade the turbo...so all we did was save on insurance and cost of the car...just my $.02
but i had a question...if you were to build up the 2.5i engine...could you do the internal work needed but use DOHC heads? or will the 2.5i engine since it is SOHC only take SOHC heads?
but i had a question...if you were to build up the 2.5i engine...could you do the internal work needed but use DOHC heads? or will the 2.5i engine since it is SOHC only take SOHC heads?
#119
Snowdrift, I'm assumeing that you should be safe to ATLEAST the HP of the WRX since its the same tranny, tho the fudge factor after that i don't know.
Zavier, I'm curious about the same thing as well
Zavier, I'm curious about the same thing as well
#120
yea cause a semi closed vs open deck is not that big a deal if you aren't trying to pass 300hp...esp if you have all forged internals...but the DOHC heads are stronger then the SOHC heads we have...so...