JPSR20DET

I just recive a to4e turbo But I did not know what trim and what exhaust wheel(stage) does this turbo have .. here are some pics maybe you can help me.
(its supose to be a 60 trim with a stage 3 wheel...) it came with a t3 twin scroll 0.85 back housing .. I also have a 1.00 ,1,15 and 0.78 t3 housings laying around I will test them on a dyno so see the diffs...
Here its goes...














Thanks for the help

RoadSpike

iTrader: (5)

Well that is a turbo from a navistar diesel engine to the best i could find. There is a part number on the back of that compressor housing shown in your last picture what are the numbers on it?

Turbo number 466772-0004

I can't find one bloody compressor map for this turbo though judging by its size i'm estimating its going to be like a 3071 by garrett. Maybe the part number on the back of the compressor housing will be telling :P.

JPSR20DET

Thanks very much man... I was thinking about the same.(3071 size).. the number is t04e-13 1811671691 r/t
Another number is m9.....
Cheers

RoadSpike

iTrader: (5)

this number 1811671691 actually is 1811671C91 or should be to match up to navistar no one else i could find had that designation.

Can you measure the wheels turbine and compressor inducer and exducer. Using those we can calculate the actual trim.

Calculations:
compressor trim = (inducer ^2 / exducer^2) x 100
turbine trim = (exducer^2 / inducer^2) x 100

Here's a helpfull image so you know what to measure:

JPSR20DET

Hi.. the exducer is 74mm an the inducer its 58mm comp side
back side 75mm exducer 65 inducer
Thanks for your time.
Cheers

RoadSpike

iTrader: (5)

Well with those number I'm getting 61 trim so 60 trim on the compressor side
and 130 trim on the turbine.

That means this is a t04e 60trim meaning its going to flow 50lbs/min of air putting it just under the power output of a 3071 gt series turbo. Should be a fun street turbo as long as that large .84 A/R turbine housing doesn't slow you down.

JPSR20DET

Thanks again... will let you know the diff in power between the diffs housings I got...
Cheers.