Budget EA Turbo - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

luke111 · 05-01-2005, 00:49

Hi all,

Im only new around here. I bought an old EA falcon 5 speed MPI a few months ago as a cheap run-around car.
Ive been doing some reading and turbos seem pretty popular on these things.
I have so far built a twin turbo 253 in a VH commodore and I have turboed a GSXR1100.
I know how to do everything I am just after some advice.
I want to do this as cheap as possible. I have too many bills at the moment and can't afford to buy everything so Im going to try and make as much as I can myself.
Ive got a Holset turbo (I think it is a HX50) from a cummins 555 diesel.
Specs are:
holset
kit: 3803129rx
assy: 3504t56
serial: A du k 01

compressor 0.73 a/r
compressor wheel id - 60mm
compressor mouth - 103mm OD
compressor outlet - 55mm

turbine 0.84 a/r
turbine wheel - id - 72mm
turbine outlet id - 91mm

Im fairly sure it is too large but I got it for free so I may as well try it.
I only want to run about 6-7PSI with premium/optimax & water injection no intercooler.
I want to make a basic log-type exhaust manifold using steam pipe bends.
I would prefer to keep the stock injectors and I was thinking of using/building a jaycar digital fuel adjuster and possibly the stock fuel pump. I was thinking about using a 8:1 fmu or maybe a 5th injector wired through a hobbs switch and parallel with one of the other injectors.
I basically want to make a poormans BA xr6 turbo.
I would like boost to start at around 1500-2000rpm and I dont rev past 4500rpm.
What would be a good cheap turbo to use if the one I have is too big?
I am confident I can do everything for under $1000. Im a qualified mechanic and I have all the tools/welders to do the job.
Any advice that anyone could give me would be really appreciated.

Luke.

ebxr8240 · 05-01-2005, 04:21

What are the inducer and Exducer sizes?I'm using a 2.416 inducer 3.227 exducer wheel on comp side and hot side [turbine] 2.920 inducer 2.420 exducer wheel trim 76
AR. 63 as twins on a V8...
Sixws go well with high A.R's but Holset are usually big turbo's..It will go well on a six...Make sure you have 48mm wastegate ....
Good luck with using std enjectors..May as well us the cheaper Hawk ,ems Stinger,Microtec. for around $1k...
Std injectors are not realy up to it either...
In any case atleast a 984 Bosch fuel pump
I'd say 600 h.p plus

luke111 · 05-02-2005, 01:41

I have found out i have a HC3 Holset off a cummins 504 V8 diesel.
These engines are rated at 290HP at 2800rpm so if my 3.9 is 238 cubes and I divide 504/238=2.12*2800rpm = should be good for around 5900rpm on my 3.9.
This should work out well. I will take some pictures and post them tonight. this turbo is massive. ive worked out the compressor is roughly the same as a Garrett 60-1.
I have spent quite a few hours today (at work) reading through the "600rwhp ed topic" and most of my questions have been answered there.

ivanhoew · 03-10-2006, 08:59

luke , if you look at the 'v8owners' forum in the uk ,and go to the your cars section ,look at the heading 'my intro ' this tvr has a hc3 as its first stage turbo .id be interested to know how you got on with the project? as the tvr is mine .

ebxr8240 · 03-19-2006, 20:53

This dimensions helps also in specs...

JunkyardTurbos · 04-17-2006, 14:22

HX35's are cheap and quite available. Lot's of guys are dumping them from their Cummins trucks and upgrading.

rorycollett · 05-05-2009, 18:30

Quote:

Originally Posted by luke111

Hi all,

Im only new around here. I bought an old EA falcon 5 speed MPI a few months ago as a cheap run-around car.
Ive been doing some reading and turbos seem pretty popular on these things.
I have so far built a twin turbo 253 in a VH commodore and I have turboed a GSXR1100.
I know how to do everything I am just after some advice.
I want to do this as cheap as possible. I have too many bills at the moment and can't afford to buy everything so Im going to try and make as much as I can myself.
Ive got a Holset turbo (I think it is a HX50) from a cummins 555 diesel.
Specs are:
holset
kit: 3803129rx
assy: 3504t56
serial: A du k 01

compressor 0.73 a/r
compressor wheel id - 60mm
compressor mouth - 103mm OD
compressor outlet - 55mm

turbine 0.84 a/r
turbine wheel - id - 72mm
turbine outlet id - 91mm

Im fairly sure it is too large but I got it for free so I may as well try it.
I only want to run about 6-7PSI with premium/optimax & water injection no intercooler.
I want to make a basic log-type exhaust manifold using steam pipe bends.
I would prefer to keep the stock injectors and I was thinking of using/building a jaycar digital fuel adjuster and possibly the stock fuel pump. I was thinking about using a 8:1 fmu or maybe a 5th injector wired through a hobbs switch and parallel with one of the other injectors.
I basically want to make a poormans BA xr6 turbo.
I would like boost to start at around 1500-2000rpm and I dont rev past 4500rpm.
What would be a good cheap turbo to use if the one I have is too big?
I am confident I can do everything for under $1000. Im a qualified mechanic and I have all the tools/welders to do the job.
Any advice that anyone could give me would be really appreciated.

Luke.

a hx 50 will start to make boost at nearly 4000 rpm but can make 900 hp. ste standard injectors are good for fu c k all . if u ran this tirbo the standard injectors would be too small at even 4-5 psi cause of the huge amount of air from that turbo. wat u can do is get a cheap t3/t4 for the low rev range power u want and use 4psi as thats the max a standard ecu will handle befor it cant read boost, and use an adjustable fuel reg and a n o44 bosch pump and it will work, people have done itb4