.42/.48 vs. .60/.63 t3 comparison pics?
also do you think i will have to retune if i use to run a 42/48 t3 and now going to run a .60/.63
thanks

 

you are definitely going to need a retune

 

i figued i had to. anyone know were i can get some comparison pics and
comp maps for both turbos?
thansk

 

Here'S the most common 0.45 a/r t3:



and here'S the 60 trim:



Physically, both turbos look the same because they are made from the same basic housings. The a/r difference doesn'T show externally.
turbine wheel is same size on both, backplate also the same. Compressor wheel is 6 mm larger.

Why not doing the hybrid: 0.48/0.60 ?? THat's a nice turbo that kicks in real hard.

 

reading comp maps confuses me. so what's the max effeciancy of both turbos?
thanks

 

THey both have a peak efficiency of 74% Which is common of T series compressors.
(GT turbos have efficiencies of 78-80%.)

but as the charts show, a turbo performs at it's PEak efficiency only for a certain HP and boost range. For every compressor, power kicks in at different HP and efficiency drops past a certain HP.

Now with that in mind, the difference between the two is that the t3 60 trim can sustain this 74% efficiency all the way to 250 HP, which is 90 HP more than the 45 trim !!

I came to consider that it'S better to use a turbo at 70% eff. at least.

With that in mind, at around 15 psi:
the 45 trim is a 200HP turbo
the 60 trim is a 280HP turbo

 

thanks blaast, the turbo is getting run on a mazda 1.8 dohc bp motor rated at 127hp stock.
thanks again.

 

yeah a .48/.60 t3 60 trim will be ideal on an engine like yours (around 130 hp)
a 45 or 50 trim compressor will work but you're almost sure to max it out at 8 psi so yes it's reliability is affected, will boost hot air in your engine and give you a poor top end.

for example the t3 .48/.60 turbo is also perfect for similar flow engines: focus zetec 2.0 and integra b18B. oh, and watercooling is a most everytime you use the stage 1 0.48 turbine.

 

im going to use the .60/.63 t3 of a nissan not water cooled, i don't mind some lag time,
my mazda bp motor redlines a 7k,also i have the nissan turbo with the 7 bolt wastegate and 4 bolt downpipe.
i want to port the wastegate, but how do i get the flapper door off the wastegate housing?
also breaking free the bolts is a bitch,have and tips or special wrenches to get in the tight arears,
have you ever used kroil oil(penatrating oil) for lossen them?
kroil oil claims it creeps, penetrates to 1 millionth inch spaces, ever head of it or used to?
here is a link
http://www.jdheritage.net/DeerelyDep...Items/4001.asp

 

anyone else? that has run these turbo could you reply to what kinda numbers your making.
thanks