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To all the members who advised and supported me , I sincerely apologize , I am going to be selling out soon !!!!! ........ I'll keep you posted .

 

No way dude! Your twin setup was so inspirational! Selling out? Not going V8 are you?

 

sorry to hear that. i was very interested in seeing your setup come to life and see how it performed. so what happened?

 

but you are still waiting on your 2 piece crank!

 

dam sorry to hear that

 

LOL just playing with you guys !!!!!!!.........After I "sell out" the twin turbos , which I am having a HARD time doing , I'll be going to a big single ! I am NOT parting with my baby or its motor !! I know I may have let down a few of you out there , but I am having too much of a hard time getting rid of the twins ! .....I honestly thought that with soo many Sti's , evos and SR's out there , that the turbos would have been gone a long time ago! to date I still have one along with the pair of waste gates !
I am not willing to go through this again ! its both frustrating and expensive ! because face it .. its an experiment , things could go wrong again and I'll be caught doing the same **** all over again , I want to be done with it and start enjoying my car ! I was going to get a pair of GT3040's , but a lot of people seemed against the choice , and I am thinking that the Gt 3076 is too small ......... this whole thing is just too confusing.
After working along with a friend of mine who went with a GT45 and seeing how streetable it actually is , I have decided to go this route too but with a GT4718 (4788)R instead ! keep you posted .

 

gt 47 is ******* huge!!!! i want pics of it mounted in the car!!

 

You'll be much happier with a single. I have a small single (apex rx-6) and yet I am sooo much happier because I have had ZERO boost problems since the install, whereas before I was constantly troubleshooting vac hoses.

 

Uhhhh.....I don't think he's talking about the stock twins. They're a tiny bit larger than the stockers....

CJ

 

I wasn't referring to the size of the turbo, I was talking about losing the turbo control system-although I guess he could have been planning to run his bigger twins non-seq. I don't know what the norm is: seq or non-seq when people run bigger twins.

 

they were going to be no seq. do you have any idea of how much more of a pain in the *** it would be to make those things seq?

 

What GT-45 does your friend have? You'll be surpised to the amount of different combinations of this turbo that's out there. A lot of the so called knock off GT-45's out there are known for quick spool up and low power outputs also. How much power was this friend making?
To reap the benefits of true GT-45 you better be running at least 40 psi plus to be better off than any turbo that's smaller. I know a lot of people that have removed the GT-50/47's in favor of the 45's because the benefits that were shown on paper(dyno)were not worth the losses in the real world where it matters anyway.

 

when he says tiny bit larger...he really meant tiny bit larger

 

yeah I do, cause the stocker's are a pain in the *** to maintain seq.

 

I always thought with the stock turbos running non-seq that the lag was so bad that it was not really worth it. I would think that with these tiny bit larger turbos that the lag would be tremendous.

 

whose car is this? where is the intake plumbed? got any more pics?

 

this is the OP car...intake appears to be plumbed to the passenger side oil cooler duct.

IIRC, this twin set-up was reported seeing 20psi under 4k.

 

Im guessing here....... OP means opposite rite ?............ in that case, yes my car is a JDM , RHD the intakes were to be plumed under the right head light , but there wasn't enough room fot the filter and the oil ooler.

 

^good guess, but no...OP = Original Poster (first time I used it...saw it somewhere thought it was the norm )

 

GT4788, thats supra status. ******* use that turbo to push out over 1400hp...

Great for a 3 rotor, but I agree with dubulup, the GT45r would be the way to go, I think the 47 is too much of a beast for a 2 rotor

 

With the smaller twins, if your exhaust side is too small, you're going to run into a lot of surge. A buddy of mine had this problem on his twin setup, had to upgrade the exhaust side to eliminate the surging problems. It would start surging like a **** over 6psi.

 

alrighty then.

 

One guy (the one running the HBP) recently purchased an original GARRETT unit , he doesnt have any HP nymbers yet , another has a "45 equivalent" , he made 504 at 20psi on a sp.
I plan on running 25 to 30 psi boost , dont know if I'll go any higher yet , the 45R looks soo good on paper ! is the spool the problem ,what "losses " were they experiencing ?

 

i guess if i were in a Bugs Bunny cartoon, this would be when they drew the jackass head on my body, eh?

anyway, glad to hear that you're still in the game.

seriously though, i would tend to agree with dhahlen on this. even with a semi-peripheral, i would think the GT47 might be a bit much. great for a top end dyno number, but probably not very responsive until you've already lost the race. what turbine A/R's are they available with? if you're hell-bent on it, then this is one of the few times when i think a small A/R might be better. good luck ... you bastard!.

 

LoL .. serves you guys right for not posting in my GT47 thread! anyway, I am "drawn" to the 47 because it has a nice BIG turbine wheel , which I think would be a great benefit to my porting style . Because the turbine wheel is soo big the smaller a/r's still outflows the comparable versions of the 42 and a 45 , I am thinking of getting a 1.0 or 1.23 , this along with the BB and my porting should offer great response and enough power while keeping the backpressure down.
This all reminds me of the thread posted some years ago when Magnus (I think) introduced the GT42R kit for the 13B , and everyone said that its wayyy TOO huge for the street , now a 42 is considered just right and even too small by some ! All things considereed , I just want to make sure that I make the best possible purchase I can ( the 45 and both versions of the 47 are all the same price !) , because I really don't want to have to do this again.