Stock Twins to single gt28R??

Salman

New Member
Jan 10, 2010
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Karachi
Hi all,

It might sound some thing to laugh at, but I am NOOb with turbo sizing,

I was told to use .6* A/r to have fun drive and drag racing with 1jzgte,
My plan was to install HX-35 with with BEP .55 a/r HOusing for drag racing, through taking advantage of higher rev point. instead of making high WHPS at dyno only,

Through my search I found this GT28R

Specs
T25 flenged
.60 a/r compressor. 54mm compressor wheel (aprox)
.64 a/r turbine housing, wheel is aprox 50mm (part no: 449010-1)
Internally wastegated,
the part no. is missing!!

Scenario

My stock twins are smoking big time, but there is no sign of oil in charge pipe!!.

iF i take this turbo as a replacement to my stock twins is it worth the effort??

how much whp will I be getting with this turbo??
I failed to Find any one using this turbo as a single on 1JZ,

kindly guide me!!

thanks
 

supra90turbo

shaeff is FTMFW!
Mar 30, 2005
6,152
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MA, 01440
If he was running two, wouldn't you think that one is not quite enough?

GT28r is FAR too small to run as the only turbo on a 1JZ. Look into the GT35r.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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I come from a land down under
Salman;1502050 said:
^^^ I read his complete thread, But he was running twin gt28r, I am asking to install only ONE!!!

So one would be half the flow and Randy wasn't that happy with the output of 2....

Great turbo on a mild 2.0L engine if you want something really drivable.

One of the medium>large gt30r's would be a better choice.
 

Salman

New Member
Jan 10, 2010
10
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0
Karachi
Dylan JZ;1502594 said:
GT3076R and be done with it.. otherwise go up to a 35R which still isn't bad at all.

GT30R and GT35R both available, Both have 1.06 a/r turbine housing!!:3d_frown:

Are they YEs or No..

If Yes which one to PICK??
 

ganesht

Pupil
Jan 30, 2010
27
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sd,CA
86_sports_1jz;1502347 said:
if you want something with really quick spool i would looking into a gt30 or a 57mm turbo

how quickly would that be? im looking for a single that i can swap my smoking 12a's for... not looking to make anymore power, just something similar to the stockers.
 

Salman

New Member
Jan 10, 2010
10
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0
Karachi
ganesht;1504093 said:
how quickly would that be? im looking for a single that i can swap my smoking 12a's for... not looking to make anymore power, just something similar to the stockers.

I think the Pro have to answer that!!!
 

86_sports_1jz

slow 700hp build...
Aug 27, 2006
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ganesht;1504093 said:
how quickly would that be? im looking for a single that i can swap my smoking 12a's for... not looking to make anymore power, just something similar to the stockers.

i don't know how quick its gonna be but i'm sure it will be close to the stock twins, if you are not looking for any more power and the same spool as the twins then why not just get them rebuilt?
 

ganesht

Pupil
Jan 30, 2010
27
0
0
sd,CA
86_sports_1jz;1504435 said:
if you are not looking for any more power and the same spool as the twins then why not just get them rebuilt?

the best price ive found was 350 each for a full rebuild with balancing.. most of the places ive worked with in the past only deal with mhi tubros (im a 1jz noob)

ive got a new set of td04hl-19t's im thinking of just finding someone to build me custom headers... i have another set on my vr4 and im happy with the spool vs power output, but im not sure how much the lag would increase going from 3.1l to 2.5
 

Nalleywhacker

Formerly gnarkill87
Oct 2, 2006
643
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chattanooga,TN
ganesht;1504650 said:
the best price ive found was 350 each for a full rebuild with balancing.. most of the places ive worked with in the past only deal with mhi tubros (im a 1jz noob)

ive got a new set of td04hl-19t's im thinking of just finding someone to build me custom headers... i have another set on my vr4 and im happy with the spool vs power output, but im not sure how much the lag would increase going from 3.1l to 2.5

700 bucks to rebuild the twins will be cheaper than doing any single swap. trust me. iam going single right now and well ive got well over 2000 invested in it so far. and its nothing spectacular eighter.

if you can get the twins rebuilt for 700 then id just do that.
 

Nalleywhacker

Formerly gnarkill87
Oct 2, 2006
643
0
16
chattanooga,TN
Salman;1504597 said:
Ok ill ask the again!!
Whats the best exhaust side housing A/R. For 1jzgte!!

There is no best a/r, it all depends on what your wanting to do! your not going to have a turbo that spools like the twins and make 500+hp.
 

Salman

New Member
Jan 10, 2010
10
0
0
Karachi
Nalleywhacker;1504692 said:
There is no best a/r, it all depends on what your wanting to do! your not going to have a turbo that spools like the twins and make 500+hp.

Agreed, But still for 500 Hps, which one is the best suited to have fast spool..