Kool

So in your opinion based on links 18 psi should be no risk. I realize all of this is ball park stuff. But I hope that I am on the right track.

And my compressor housing is B how much does that effect the graph as it references E.

blown 944

how do you know for sure it is a "B" housing?? The b uses 3 separate retaining flats on the back of the comp housing and the "e" uses 2 with 3 bolt holes.

either way the wheel is up to the task IMO

Kool

It is a B 2.75" inlet and the 3 2 bolt plates.

Now if I ever want to change anything say ball bearing or anything can I do that in the current body by swapping components or is my only option replacing the entire turbo?

blown 944

well the hotside may be able to be used and you may be able to get away with your compressor cover "if" the DBB replacement cartridge is a 54 trim using the same turbine wheel as your current unit.

This would be highly unlikely and actually not very desirable compared to what is available in DBB, the newer compressor wheel designs, as well as turbine wheel designs.

Not worth looking at IMO. By the time you are done with this turbo the DBB's may have come down a bit in price anyway.

Kool

That is what I thought.

seattle951

I replaced my Lindsey Racing Super 75/8 Stage V (Dry) with Garrett 3076R, double ballbearing with .63 housing an 10 blade turbine wheel.

I picked up 5 RWHP, 8 RWTQ with peak TQ coming on at 4500 rpms opposed to 4250 rpms. The GT spools much more quickly and makes 60 additional ft-lbs of TQ at 3500 rpms compared to the LR75. The LR75 also peaked at 6250 rpms and was declining. The GT remained solid at 6250 rpms.

The LR75 would lag and then hit like a Mack truck at 4000 rpms. The GT provides power earlier and much more gradually. The turbo change has completely transformed the car.

I am making 316 RWHP at 17 psi boost on a Mustang Dyno on 92 octane pump gas.

I would recommend this upgrade to everyone.

TurboTommy

Don't you mean you think it might be too big; or more accurately, the compressor is too big for a mis-matched (too small) hotside.
Besides, do you know if you're going to make full boost by 3,250 rpm?

INURGRL951

I think your looking at the map for the wrong reason here.

1. You need to think what you want your car to do more reaction time (road courses) a mid size turbo
2. A big turbo for a dyno qween but slightly slower in a race.

When looking at the compressor maps you need to have in mind what you are planing on doing and getting it to the closes you can to a turbo that has the most efficiency in that general area.

Im thinking this turbo is going to be to big for what you are trying to do cause the efficiency of the turbo is to the right of what you maped out.

spoolin51

Now what did I tell you about this whole "thinking"

SID....Dude your car looks sweeet!

INURGRL951

Damn dude i'n sorry you told me about that ....but sometime THINKING can work !

Oh yeah what about props on my ride <----- just had too spoolin SO are you spoolin yet

spoolin51

I'll give you your props if you gimmie those sweet wheels!!!
lets take this OT

Rogue_Ant

This turbo (if it is a 54trim) is definitely not too big. In fact it is one of the smaller T4 compressors availible. Max flow is ~45lbs/min, which is close to the same as a K27 7200 compressor. I would compare this turbo to the LR Sport turbo.

IMO, that turbo will perform quite well for the boost you want to run, and coupled with a matching turbine side should be really responsive as well.


-Rogue

blown 944

I think it should be clarified as to which turbo is being spoken of.

The turbo in the first post is not what he has, that was a mistake. Also looking at the map it would be assumed that that turbo is too big but in reality it is just too inefficient. This is the turbo he has at 18 psi and should work well.
http://www.squirrelpf.com/turbocalc/...&product_id=59

Kool

It was a SFR Stage 1. I think that he has since gone to a T57 as his stage 1 turbo. So your comparison to a LR Sport is probably on the money.

Sid is right.

I had screwed up initially what compressor I thought that I had. I will run this one for now.

Maybe at a later date I will see what I will move to.