Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

Just like the topic header says....Will this turbo be to laggy for my b20....the turbo is a stage1 turbine...i only plan to run 10-12 pounds
post up your opinions....thanks

Les

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

The problem i you'll be using that turbo way out of it effeciency range. B20 don't like boost in stock form. That turbo is designed for more HP then what you can handle stock.

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

I agree, with that big of a turbo you will tear a part a stock internal b20. It will eat up those thin cylinder walls like french toast on a saturday morning.

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

i know the b20 block isnt that strong and im not worried about that.....cause proper tuning should be essential....all i was wondering is if this will lag....the compressor map for this turbo....non of points are gonna be plotted outside its efficiency range.....so yeah how is that inefficient....fill me in

Les

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

im just gonna try it...

any more opinions....i have gotten a couple i opinions just want more....
to be specific the set-up is:

JDM b20b (dont know if it is different from a USDM one)
Skunk2 Intake manifold
Stage 1 Crower Cams
2.5 inch charge piping
2.5 DP with DMH performance E-cutout
CC-Fab log manifold (havent gotten it yet)
Garrett T3/To4e 60 Trim Stage one .63 turb .70 comp (from Blaast...thanks Guillaume)
Greddy Profec B Spec 2
Tial Style Wastegate (8 PSI Spring) dumping into atmo
ARC Type NS BOV
Greddy Style Intercooler (28"x6"x2.5")
ARP Headstuds
New oem headgasket
Chipped P28 on Uberdata

So yeah please let me know how well this turbo will perform on this set up....specifically spool time...i want to be full spooling by 4500rpm or less....thanks a bunch

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

Bump added full setup....

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

Not sure about your specific setup, but I am runnign a .60/.80 GT28 on my stock b18, and it hits full boost at 4k, in 2nd.
Everyone told me the .80 wouldnt spool up till the redline, it starts to build boost at 3k. I'd tell you it depends on the quality of the rest of your build, but mine is so shitty it cant explain it away. Your ---- will probably work out ok.

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

isnt a GT28 ball bearing though....so wouldnt that spool up faster than any t3/t4 hybrid???

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

bump....

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

bump need more opinions

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

stage 1 T3 turbine wheels don't belong on T3/T4 turbo's

You probably have a stage 3 or 5 wheel. If you have a stage 3 wheel, then just run it. It will make good power up top. If you want something that spools quicker, try to get that wth a 0.48 A/R turbine housing instead of the 0.63 A/R.

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

What? Stage 1 simply means it's not a stg 2 or 3 etc...It's just a normal .63 A/R. What are you talking about?

Yes, the GT28 is a ball bearing and it will spool alot faster.

I think that turbo is a good match for your setup. They are a little laggy on a B18 but since you have that extra .2L displacement I bet it will start spooling around 3500-4K. As for your poor liitle B20, I don't think it's going to live very long with that kind of load on it. There's just not alot of meat in those sleeves on that thing. Hope it works well for you, it'll run like a bat for as long as it lives. (Tuning = reliability)

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

When referring to T3 turbine wheels, the stage# indicates mostly the size of the wheel. It really refers to the trim. Stage also does not refer to the A/R of the turbine housing. T3/T4 turbos normally come with with the stage 3 wheel. A stage 1 wheel is way to small to be useful and is too restrictive. Stage 1 and 2 wheels are OEM types, 3,4,5 are the aftermarket stuff.

Also the GT28RS will spool faster simply because it is a smaller turbo.

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

i got it from blaast performance...it is a stage one.....will it still make ok power even though the wheel isnt that big

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

^Word, and my gt28 is a journal bearing rareity.

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

a T3 .48 stage 3 turbine is 1 step (one stage) larger than a stage 1 .63 housing on a T3, approximatley. A .48 stage 1 is wayy too small for a T3/T4 but depending on your redline it might work fine. With higher revving engines with alot of power high in the revs, a stage 3 would be practically a must, but if youre staying around 7k or so its not as critical, depending on the power level, that is

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

There is a stage 2 wheel as well, so that is 2 steps. Again, the A/R has nothing to do with the "stage" of the wheel.

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

well the redline on a b20 isnt that high...its only 6800 or 7000 rpm....so hopefully this turbo will spool and make me decent power...i keep getting mixed answers saying its too big and wont spool....and other say its fine and that it might be a great turbo for the 2.0 litre set up....

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

hmmm... solid info. Where were you when i asked how much power my t3/t4 i just bought was capable of? its a .48 ar stage 3 with a .60 ar compressor housing! so its definatly good to 350hp?

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

should work on your b20... look at me i'm rocking a garrett/airesearch .63/.84(not to sure about the trim...) on my b18b... i barely hit full boost in first at 6k or 6500. but 2nd is at 5k ish. 3rd is like 4500. and my redline is at 7k, lol. i'd be ------- happy if i got this ---- to hit full boost by 5 in 1st, but trust me when it kicks in it KICKS. :y

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

I would strongly advise you to stay around 6-8 psi on a B20. I see you have some studs for the head, but its the walls that crack on the block on the B20's. GL.

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

depends on the setup but it should be good to around there. On my 2.0 A20 the .60/.63 worked good, fully boosted by 4k, big top end etc

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

yeah its been ------- 4 months and he still is making excuses...basically i got owned...

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

Yeah I feel you, i got owned too >:(

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

Log mani with 3" Down pipe, running 9psi and boost on the b20 starts at 3 and full boost is in right below 4k rpm. Sick setup surprises alot of unsuspecting individuals. this is with the t3/t4 60 trim. Garrett

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

I'm assuming that's with a 0.63 A/R on the turbine?

Re: Question: Will a t3/t04e 60 trim ar .63/.70 be to laggy on B20
 

I have a different engine, but it's the same displacement, it's a 2.0L. I now run a mitsu hybrid 50trim, but i used to run a full garrett t3/t04e 50 trim compressor wheel with a stage 3 .63AR exhaust. I'd hit full spool right around the 4k range up until redline at 7k. I wouldn't consider it too laggy in my book. Great street/strip turbo in my opinion.