^
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

 

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?

 

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

 

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??

 

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.

 

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

 

maybe they're using kangaroos to deliver them

 

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!

https://www.i-club.com/forums/used-aftermarket-car-parts-sale-99/sz55-plus-all-options-less-than-1000-miles-driven-149599/