Well let's look at the whole picture. There is a little more to look at then just housings. As for as the wastegate, external is going to be the best bet for holding boost, eliminating creep, and eliminating spike. However your goal is very capable with an internal gate. On a T3 or T4 you will elminate the choice of internal gate all together. Then you will have to either weld a flange on the manifold or the O2 housing for the wastegate. Or get a tubular O2 with the flange already welded. There are plenty of choices.

As for A.R. ratings you generally have three choices when it comes to the T3 .48, .63, .82. The smaller the number for the A.R, the quicker your spool is going to be. However this will be a restriction of airflow on the upper end. For a mitsu housing the A.R. varies depending on the make and turbo. For instance the 50trim. It can vary anywhere from .55 to .63 A.R.

Your goal however is very possible on, for example purposes, an internally gated Bastard 20g. Being internally gated this will come with a Mitsu housing. As I stated before internal gates can be tempermental when it comes to boost creep. You can control this however with going to a 34mm flapper. The idea behind this is simple air flow. The bigger the hole, the more flow. The idea behind boost creep is with the 31mm flapper it is not releasing enough air. Therefore it will continue to put "pressure" on the turbine. Continuing to spin it creating boost creep. With a 34mm flapper you will release this air and take the "pressure" off of the turbine. In theory then lessening the chance of boost creep. This will work perfectly with an O2 housing that is ported properly. Even if you go with a standard 20g the flapper on the internal gate is 38mm.

In my opinion, I would go with either the 20g or 50trim. Both of these turbos are capable of your goal. However the internal and external choice is up to you. I hope I provided you with enough information to help you in your decision.

I see that you have a good setup right now. The t3/t4 will flow more air than some mitsubishi housings (depending on the options and setup that you choose). However, there are better 20g's out now that could help your goal. Have you considered a 50 trim or better yet, a FP3052. I see that you have a nice modded head. I would probably recommend a turbo that would fully utilize your built head like a 50 trim, 52 trim, etc.

Yes, I have considered a 50 trim. I was looking at the SBR G50 and the PTE Ball Bearing 50 trim. I was also considering the Bastard 20g. I am just waiting on the dyno results in your testing thread. If it puts out excellent #'s, that may sway my decision.

No other opinions?

Both of those repsonses seem to throw a lot of info at you and both seemed real good but as a pratical guy going threw the same thing as you on a budget I can give you some advice. You have the pacesetter and the good breathing o2 housing stay with a bolt on housing turbo. If you get a t/3t4 turbo you will need a new exhauste manifold and a new down pipe or atleast an adapter which either will cost more moeny. I would strongly look into picking up a fp green(50 trim). It will give you consistant mid 11's especialy since your tuning with the link. DId i mention you will be running high 11's on pump gas alone with a good tune. You will also be able to get away with those 650's you have to so your only new mod would be the turbo where as if you go with something to big or something that isn't bolt on you will need to upgrade other parts just to run it safely. the fp green is not a cheap turbo but it is probably one of if not the best bolt on 50 trim around. I would also look into the gt10 from slowboy racing up to the gt12. Those turbo's aren't really as track and dyno proven as the green though but SHOULD be able to get you the power you need and still be bolt on housings and on top of that the sbr turbos are dual ball bearing turbos so boost respone will be even more streetable and come on a little quicker. WHich ever route you decide to go make sure that you look at everything you will need to run that turbo. Good luck

So I am getting the general consensus to go with a 50 trim of some type with my setup. Should I go with something ball bearing or will the standard cartridge hold up just as well?
I don't want to be replacing this thing in a year. Now, should I stay with a 50, or step it up to a 57 or 56? I know depending on the mods, the 50 will actually be a better fit and flow more for me than something bigger. But I have no experience with these bigger turbo's. I am still on the stock intake manifold and won't be able to afford a sheet metal intake for a while. Will the 56 or 57 react the same as the 50 with my setup? Then when I am able to upgrade the manifold that should unleash that extra power of the others?

anything but just to make it clear the trim doesn't designate the size of the turbo it's actualy a ratio. I will just assume you knew that and that you were just kinda talkin about bigger turbos because I to have made that mistake and known what I was talkin about but just refered to them as you did. You are right though the 50 trim is a lot more compliant with stock parts then a bigger turbo but to be honest supporting mods are there no matter what turbo you get. If you want consistant and good power you gota pay. People have gone fast with stock cams and stock intake manifold but when planing on what your car will have when it's done you have to assume the worse so that worse case scenario you over shoot your goal and you don't come up short and end up another "50 trim installed not as fast as it should be" threads.

Don't forget about the Bullseye performance turbos. I'm running the t04b v-trim. Bolts up to the stock manifold and o2 housing. Flows like a pig. And put down some decent numbers. Only problems and i learned after purchasing the turbo was it's was notorious for compressor surge. Go with the Bullseye 50 trim. I've had rave reviews on it.

TurboChrged93 said:

Don't forget about the Bullseye performance turbos. I'm running the t04b v-trim. Bolts up to the stock manifold and o2 housing. Flows like a pig. And put down some decent numbers. Only problems and i learned after purchasing the turbo was it's was notorious for compressor surge. Go with the Bullseye 50 trim. I've had rave reviews on it.

Click to expand...

So far from what I have read about the Bullseye has made me decide against it. Not only the compressor surge but overall it has put down lower numbers than most. Your setup is somewhat comparable and nowhere near my goals. What psi did you dyno at? I think I may need something bigger than the v-trim.

OK, I have pretty much decide on a PTE 50 Trim with the internal 38mm wastegate. The only thing I have not decided is....Ball Bearing OR 360* Thrust Standard Journal Bearings?
There is about 100$ difference. I do not want to have to replace this thing in a year. Will the standard bearings last just as long if timed and taken care of, or should I just spend the extra money now?

megadeth0 said:

OK, I have pretty much decide on a PTE 50 Trim with the internal 38mm wastegate. The only thing I have not decided is....Ball Bearing OR 360* Thrust Standard Journal Bearings?
There is about 100$ difference. I do not want to have to replace this thing in a year. Will the standard bearings last just as long if timed and taken care of, or should I just spend the extra money now?

Click to expand...

well the bullseye V and M trims internal gate retail around 625.00 Bolt on housing etc.. just another option since you were looking that way!

Mark
SBR