I got my 2006 STi for about a year now and I am thinking about a turbo upgrade. Anybody know a good turbo setup for the 06 STi?

Thx Guys

For a daily driver with quick spool, many seem to like the 20G or the FP Green with bigger injectors, fuel pump, and pro tune with Cobb or Ecutek engine management.

recommending what turbo you should run is like recommending what music you should listen to;) How much mor edo you want to get? Are you looking for big turbo that will make alot of power on better gas or a smaller quick spooling turbo that will be ideal on pump gas?
I've had both (5 now actually:D) so I could throw you some advice, what else power wise have you done to your car already? If youve been dynoed what are you putting down?

if i had a sti? i would get a red..

I am looking for quick respond and a FMIC.

I want a good pump gas turbo (91 cali) for a 06 WRX

Super

recommending what turbo you should run is like recommending what music you should listen to;) How much mor edo you want to get? Are you looking for big turbo that will make alot of power on better gas or a smaller quick spooling turbo that will be ideal on pump gas?
I've had both (5 now actually:D) so I could throw you some advice, what else power wise have you done to your car already? If youve been dynoed what are you putting down?


hey krinkov,

don't know if you remember...i bought your volk gtp's a while back...??? can i take you up on the recommendations...???

i have an '04 STi, Borla Hush tbe, helix catless dp, and ecutek re-flash by Mike (formerly of...well...you know). got the ok from wifey, and i'm now ready for a turbo upgrade. looking for something bolt on and run the least amount of supporting mods (willing to go fmic and the like). my performance goals are 300-350 wtq/whp on pump gas. its a daily driver. i'll never see a track, will never use 100 oct, and i'm looking for low to mid range (rpm) performance...not too concerned about the top end. the FPGreen seems like a nice choice. what about the FPRed...? what does the "grape vine" have to say about this Helix RR500?

going through as many turbo's as youve gone through...you would know. any info would be a appreciated.

thx,

Na'im

I am looking for quick respond and a FMIC.

"quick response" and "FMIC" are usually at odds with each other, no matter what size turbo you run, an FMIC will have a noticable effect on spool and response. Running a smallish FMIC(hyperflow) on my stock turbo added too much lag for me, so this would only increase with a larger turbo. Try getting someone to let you drive a an STI with an FMIC on it, perferably with a stock or smallish turbo, to see if you can even live with an FMIC before you make any decisions, once you cut that bumper your pretty much committed:(

I want a good pump gas turbo (91 cali) for a 06 WRX

Super

This is why I love the 06, you already have(basically) the STI longblock, all you need is to find a VF39 and STI topmount (about $300 each nowadays) and get an accesspot and you have an STI! and yeah the VF39 is a really sweet 91 oct turbo, I hit 270whp/301wtq at gruppe-s with mine and just a turbo-back and headers(headers do wonders for the 2.5) and a good tune. On the Gruppe-s Mstang dyno STIs usually baseline around 220whp for reference. For you this option is so chap and fun I would suggest running that for a while, since once you go bigger you will also need injectors and a fuel pump. If you do want a bit more you can run what Im running right now, a 20G.

the VF39 runs great on 91oct but runs out of breathe and can only hold about 12pis out to redline, thats why you can never get the HP numbers up as high as the tq, the 39 is just maxed out on a 2.5 motor and you need a bigger turbo to hold the boost out longer, then you can get the hp numbers even with the tq. I head from alot of people the 20G could do this and spool like stock, but I held out on trying one for a long time since these mitsu turbos are all about 20 years old tech, still with sleave bearings, coming off all ball bearing turbos I really didnt want to take a step back, and didnt think it would respond as well as everyone says, but yeah it does. Almost, right now Im running a the smaller TD05 20G, last I put down was 296whp/305wtq on 91oct, and while not dead even on spool with the VF39, it was only about 200rpm behind, honestly though, the spool difference was small enough that if I didnt see it on the graph and try really hard to notice it before and after it would have been hard for me to tell the difference from before/after. Alot of guys with STIs automatically go for the bigger TD06 20G, but this adds quite a bit more noticeable lag and only about 5-10 more whp on 91oct, yeah it will make more of a difference on race gas than a TD05, but I dont think the additional lag is worth the extra 5-10whp on pump. For getting the most out of 91 oct on a 2.5 with almost no added lag of a VF39, the TD05 20G is hard to beat;)

Right now though Im about to switch out (again!:o) to a APS SR40. this tubo is about the size of an FP Green (which is based of the 20G but about one size bigger than the TD06 20G) but the SR40 is built using Garrett met GT series of twin ball bearing cartridges. Ive driven a couple of these in STIs and they spool almost dead even with my TD05 20G but make a good bit more power on 91oct, my buddy miguel hit 323whp/320wtp at Gruppe-s with one and stock top mount. The only problem with these are the price, look to pay about 1700-1800 new for one of these, the 20Gs can be had for about 1100-1200 new. Heres my SR40 next to a VF39, its aboutthe same size physically as my TD05 20G

http://img83.imageshack.us/img83/8694/picture725ps4.jpg
http://img86.imageshack.us/img86/9274/picture726fh5.jpg
http://img152.imageshack.us/img152/7977/picture727fb7.jpg

hey krinkov,

don't know if you remember...i bought your volk gtp's a while back...??? can i take you up on the recommendations...???

i have an '04 STi, Borla Hush tbe, helix catless dp, and ecutek re-flash by Mike (formerly of...well...you know). got the ok from wifey, and i'm now ready for a turbo upgrade. looking for something bolt on and run the least amount of supporting mods (willing to go fmic and the like). my performance goals are 300-350 wtq/whp on pump gas. its a daily driver. i'll never see a track, will never use 100 oct, and i'm looking for low to mid range (rpm) performance...not too concerned about the top end. the FPGreen seems like a nice choice. what about the FPRed...? what does the "grape vine" have to say about this Helix RR500?

going through as many turbo's as youve gone through...you would know. any info would be a appreciated.

thx,

Na'im

Hey Bro! Still my favorite wheels ever, though Ive had about 5-6 differnt sets since then :o

Yeah check out my post above, any of those turbos would be fine to run without a FMIC, and either of the 20Gs will get you at or really close to 300/300 on 91oct, especialy if you do my intercooler mod too(scroll down:D)
http://www.i-club.com/forums/showthread.php?t=147071&page=1&pp=20

problem with pushing over 300/300 is then you really need to start switching alot of other things. On top of the FMIC becoming a good idea, you will need a bigmaf, also the clutch is usually great out to 320wtq before it starts slipping, and once you start pushing alot over 300 on 91oct you really have to start worring about the cast stock pistons:( If you keep your goals around 300/300 you can avoid alot of extra cost and keep a good size quick spooling turbo and keep your car relatively reliable and worry free. hope that helps!

I want a good pump gas turbo (91 cali) for a 06 WRX

Super

i have a fp td06 20g for sale. pm me if you are interested.

Hey 209,

I do not even pick my car up until this weekend! So I am doing some research right now. My other WRX is leaving the garage this weekend which was a Stg 4 02. I wish that I had the money to pick up the 20G and let it sit while I collect all of the other required parts. Thanks for the offer!!

Later Super

Hey Bro! Still my favorite wheels ever, though Ive had about 5-6 differnt sets since then :o

Yeah check out my post above, any of those turbos would be fine to run without a FMIC, and either of the 20Gs will get you at or really close to 300/300 on 91oct, especialy if you do my intercooler mod too(scroll down:D)
http://www.i-club.com/forums/showthread.php?t=147071&page=1&pp=20

problem with pushing over 300/300 is then you really need to start switching alot of other things. On top of the FMIC becoming a good idea, you will need a bigmaf, also the clutch is usually great out to 320wtq before it starts slipping, and once you start pushing alot over 300 on 91oct you really have to start worring about the cast stock pistons:( If you keep your goals around 300/300 you can avoid alot of extra cost and keep a good size quick spooling turbo and keep your car relatively reliable and worry free. hope that helps!

great feedback!!! looks like a have a couple of weeks to decide anyway...

thx again!

Hey 209,

I do not even pick my car up until this weekend! So I am doing some research right now. My other WRX is leaving the garage this weekend which was a Stg 4 02. I wish that I had the money to pick up the 20G and let it sit while I collect all of the other required parts. Thanks for the offer!!

Later Super

hey, if youve been running around with a stage 4 03 you should know all this stuff!:D

Yeah Im done with big turbos, who cares if it will make 400whp on race gas?? I'll be swiping the lane in front of you on the freeway while your waiting to spool up :D

So what do you think about a VF-22?? They can be picked up really inexpensively and it is a bigger turbo than the VF-39

Super

So what do you think about a VF-22?? They can be picked up really inexpensively and it is a bigger turbo than the VF-39

Super

the VF22 puts out only a bit more CFM than a 39/34, and its notoriously laggy. A cheap price tag isnt a good enough reason to go with a 22, you can get into a 16G which puts out the same amount of air as a 22 but spools as fast or faster than a VF34 for only $699
http://linux.forcedperformance.net/merchant2/merchant.mv?Screen=PROD&Store_Code=FP&Product_Code=NTWRXFP16G5H&Category_Code=WRX
for $175 you can upgrade the 16G to an 18G which is still a sweet spooling turbo on a 2.5 and Cobb even has maps you can download to run an 18G on your stock 06 injectors if you have an Accessport. I know 22s are cheap but turbos the one part I dont cheap out on, if your going for a turbo upgrade its the one thing you should be putting your pennies toward, find somewhere else to save a few bucks, its like building a stereo sytem to run radioshack speakers :o

hey, if youve been running around with a stage 4 03 you should know all this stuff!:D

Yeah Im done with big turbos, who cares if it will make 400whp on race gas?? I'll be swiping the lane in front of you on the freeway while your waiting to spool up :D
^
Should know as hes had many many turbos

I would stick with a smaller turbo (16-18g on 2.0 and fpgreen/20g on 2.5) unless you got alota extra cash and plan a monster type build.


Just make sure you tune the car well to get the most out of that turbo ;)

http://img83.imageshack.us/img83/8694/picture725ps4.jpg[/img]
http://img86.imageshack.us/img86/9274/picture726fh5.jpg
http://img152.imageshack.us/img152/7977/picture727fb7.jpg
Tell the truth, your buying the SR40 cuz you like the color :P

Tell the truth, your buying the SR40 cuz you like the color :P

If he was buying it for the color, wouldn't it be pink? or purple?

Tell the truth, your buying the SR40 cuz you like the color :P



haha, actually Im bead blasting the compressor housing as soon as I get it apart, ****!:D

what would a sr56 compaare to?? how do you think it would run on the STi?
how about the twinscroll tsr70?? is there anything thats comparable to that? does anyone have any eperience with it?

thanx

what would a sr56 compaare to?? how do you think it would run on the STi?
how about the twinscroll tsr70?? is there anything thats comparable to that? does anyone have any eperience with it?

thanx

Im not too familiar with that SR56, but since its APS and they use Garret GT cartridges the specs have it coming out like as big GT30R with a large exhaust housing, (.96 turbine) I ran a GT30R with a .82 turbine, and that was rotated with a 4" inlet, this one is conventional and unless thats a 3" inlet Im not sur how well thats going to respond:( In any case, that is a pretty serious turbo thats not going to be much fun on pump gas, and for the price of around $2100-2200 I think I would just pony up the extra 400-500 to get the Perrin rotated GT30R kit. For the Extra $4-500 you get an up-pipe, down pipe, intake, and external WG(nice!), which you would want to get anyways, and then you get a turbo thats pointed in a better direction for response/efficientcy.

as for the tsr70, yeah thats their twin scroll rotated GT turbo. I dont know how much they are trying to sell that for, but you can get a twin scroll housing with any GT series Garret turbo you buy from ATP for no extra charge, http://www.atpturbo.com/ for example you can get a twin scroll GT35 from them for $1395. Think I would just V-band a regular down pipe and fit any set of EL header to it if I reall wanted to run that, think I could do that for another 1K over the price of the turbo, so unless the tsr70 isnt more than around $2500 I dont think I would waste my money on it.

EDIT: just looked it up, they want $3K for the tsr70 and doesnt even come with the headers/EG/Dp, just the same twin-scroll GT35 you can get from APS for half the price, wtf?? :confused:

EDIT: just looked it up, they want $3K for the tsr70 and doesnt even come with the headers/EG/Dp, just the same twin-scroll GT35 you can get from APS for half the price, wtf?? :confused:
Its APS

Its costs alot to ship such a big from the land down under. ;)

I just saw (and heard) an STI with 500 crank HP (420-something wheel) which used this turbo:

http://www.power-enterprise.co.jp/impreza_kit.html

PE1820; a very impressive and bomb-proof setup. They don't seem to be incredibly expensive, either.

I just saw (and heard) an STI with 500 crank HP (420-something wheel) which used this turbo:

http://www.power-enterprise.co.jp/impreza_kit.html

PE1820; a very impressive and bomb-proof setup. They don't seem to be incredibly expensive, either.


yeah, PE1820s have actually been around forever, they are just regular VF22s with the GM style 39 lb/min diesel compressor wheel fitted into them, if you already have a VF22(can be found for 500-600) Deadbolt will install that wheel into it for $299, so the price PE wants for them is actually a bit much compared to what you can get one made for. While laggy, these turbos are very efficent and can make good power, though I REALLY question the 420 whp claim. I would like to know what dyno/octane/mods they claim to have. All results of 1820s Ive seen have them making comparable power to the 20Gs, only with more lag and $200-300 more expensive, hence why you dont hear as much about them nowadays since they came out with Subaru mounting turbine housings for the mitsu turbos

Its APS

Its costs alot to ship such a big from the land down under. ;)


maybe they're using kangaroos to deliver them :D

what about vf34 on an 06 wrx... its slightly bigger than the 39 right? what kinda spool charicteristics should i expect? would this be faster than stock STi?

what about vf34 on an 06 wrx... its slightly bigger than the 39 right? what kinda spool charicteristics should i expect? would this be faster than stock STi?


the VF34 is almost identical to the VF39 other than having a larger turbine housing(P18 for the 34 and P17 for the 39) and a slightly larger compressor housing. when I first got my STI we threw a 34 on it and put it on the dyno just for the hell of it, sure enough the larger housings were good for a bit better top end, hit about 10whp over the 39 with just a turbo back, most likely from the 34 being able to hold 13psi out tot redline compared to the 39 which held about 12. there was a touch more lag, only a couple hundred rpm though in a small window, I have a dyno grph of the two I'll dig up but it was seriously a small enough difference in spool you would never tell the differnce without seeing it on the graph.

All in all, if you have the choice between the two for the same amount of money get the 34, but nowadays, when you can find them used, they are usually about $500 +/- and theres just not a good enough reason to spend the extra on a used 34 when you can get a brand new 18G that would blow them both away and run off your stock injectors/pump and still spool about even with the 34.

18g ... ill take that into account. thanks

(shameless plug)

FWIW, I'm selling my SZ55. Bang for the buck, my SZ55-fatboy with ceramic coated housing will be a nice upgrade for the STI. Lag is overrated and it was awesome around town. I made 360 at the wheels, which puts you on goal, with a very conservative tune on 91 octane. Mint condition, driven less than 1000 miles and comes with lifetime rebuilds from Deadbolt. I need to get this sold to pay for my next BIG setup!

http://www.i-club.com/forums/showthread.php?t=149599