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Which turbo for my DB4 build guys ???

bigchevy89 said:
Ive been running the hx-40 nock off with the t3 flange on my 93 for 10 months now with no problems. it was well worth the money to me.after i finally build my engine i will continue to use it. it spools just as fast as my old gm-3 and keeps pullin. the waste gate comes pre set at 18 psi. my engine with 220,000 miles on it has no prablem building boost with the turbo.
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Pics of the install ??
 
bigchevy89 said:
Ive been running the hx-40 nock off with the t3 flange on my 93 for 10 months now with no problems. it was well worth the money to me.after i finally build my engine i will continue to use it. it spools just as fast as my old gm-3 and keeps pullin. the waste gate comes pre set at 18 psi. my engine with 220,000 miles on it has no prablem building boost with the turbo.
Click to expand...


and there we have the proof that these turbos work... which one did you buy? EUMSAII?(i think that is how it is spelled) does it have a serial number? how much did you pay? i have seen these turbos go down to around $225 + shipping.... how does it spool up? do you have lower EGT's than the gm-x turbos? i would just like to say thanks for sharing.... for around $400 , it makes these turbos a very attractive choice...
 
robzombie4551 said:
Damn, I was just informed that it was an incomplete project and needs further refinement.:mad2::mad2:

However I'm confident that our guru might be able to figure something out someday.:agreed:
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look on u-tube, there are lots of guys working on electronics for the vgt.... IMO thats all the electronic 6.5l needs is more electronics....
 
i will get some pics up shortley. camera was inop when i did the install.it was the emusa turbo.cant remember the exact price. it starts to spool just a hair faster the the gm-3. my egts are alot cooler even when i get on it the temperature even builds slower. iam going to install a charge air cooler soon.
 
bigchevy89 said:
i will get some pics up shortley. camera was inop when i did the install.it was the emusa turbo.cant remember the exact price. it starts to spool just a hair faster the the gm-3. my egts are alot cooler even when i get on it the temperature even builds slower. iam going to install a charge air cooler soon.
Click to expand...

What kind of exhaust drive pressure are you seeing with corresponding intake pressure PSI? What kind of intake air temps at different PSI? Would be nice to know whether you are getting high IAT temps and high drive pressures or they are better than the other turbos or the VGT turbo. Lots of info that would be nice to know, to see how well the turbo performs. IS there a turbo map out there for the turbo or any other comparison data?
 
turbonator said:
and there we have the proof that these turbos work... which one did you buy? EUMSAII?(i think that is how it is spelled) does it have a serial number? how much did you pay? i have seen these turbos go down to around $225 + shipping.... how does it spool up? do you have lower EGT's than the gm-x turbos? i would just like to say thanks for sharing.... for around $400 , it makes these turbos a very attractive choice...
Click to expand...

and there we have the proof that these turbos work... which one did you buy? EUMSAII?(i think that is how it is spelled) does it have a serial number? how much did you pay? i have seen these turbos go down to around $225 + shipping.... how does it spool up? do you have lower EGT's than the gm-x turbos? i would just like to say thanks for sharing.... for around $400 , it makes these turbos a very attractive choice...

I hope nobody is offended but these were the questions that were asked of me to substantiate my claims that the turbo i suggested was a viable option. So I guess they are valid here.

What kind of exhaust drive pressure are you seeing with corresponding intake pressure PSI? What kind of intake air temps at different PSI? Would be nice to know whether you are getting high IAT temps and high drive pressures or they are better than the other turbos or the VGT turbo. Lots of info that would be nice to know, to see how well the turbo performs. IS there a turbo map out there for the turbo or any other comparison data?
 
Our hope here is that no one is ever offended with the sharing of good info. The questions asked about the turbo are extremely valid and important.

We have full intentions of being able to measure charge air temp, the exhaust back pressure as well as the basic boost and egts (possibly both sides). My brother is continuing to collect different turbos that we will be able to swap and do other than "seat of the pants " comparisons....:agreed:

We are relative "newbies" to the diesel game, with the base of our info coming from studying the development of the ATT. Slim and T.D. shared loads of valuable info during the testing of the ATeam Turbo...... thanks again guys....
 
Not everyone is set up to get that info but I would realy like to know that info too.

Dodge guys say they are some of the best low $ turbos and are great for towing. I have a buddy with a 500HP 24V running a knock off T3 HX40 + a smaller turbo, has ~1000 miles on it and hits 65psi.
 
I have been thinking about buying an HX40WII off Amazon, they arent always on Ebay anymore. It is the T3 mount 14 cubic centimeter housing, with 3" V-band exhaust outlet. It makes it about as easy an install after the ATT. When I recommend turbos its the ATT or this HX40WII for the bargain conscious shoppers that may not have all the fabrication capabilities.

The T4 HX40s have 16 cubic centimeter housings, so will flow easier for good high RPM power, but will lag a little more. They also have 4" V-band exhaust outlet so would need to come down to 3" or cram a 4" elbow and downpipe on. The ATT gives you the T4 housing and bolt on installation for the most part.
 
sorry i dont have a way to test drive pressures and abient temp it would be good to see apples to apples. i know as far as higher rpms my truck pulls alot stronger in the high rpm range than the gm-3.
 
I'm a bit confused though...The HX40 AFAIK was for the 8.3(pretty sure my 8.3 had one) so why is the chinese knockoff a T3 when the real one is a T4 ? Was this basically made thise way to use on other apps ??
 
Acesneights1 said:
I'm a bit confused though...The HX40 AFAIK was for the 8.3(pretty sure my 8.3 had one) so why is the chinese knockoff a T3 when the real one is a T4 ? Was this basically made thise way to use on other apps ??
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yes. the hx40 came in a few different combos from holset but i think there all t4. the chinese just made t3 and put a smaller turbine in some cases
 
T3 hx40 is a pretty much bolt on mod for 5.9 12 and 24 valves. ALOT of dodge guys that build towing/dd rigs use the HX40 knock off. I helped out at the local cummins performace shop to pass time and learn from fellow diesel junkies. They get theirs off of Ebay
 
The T3 versions of the HX40 are not all over the place, not as many as T4 options available. the T3 version can have the same large turbine, but in a smaller housing, 14cm2 vs 16cm2 when making the A/R calculation, which is kind of a ambiguous value, but smaller means spools a little faster. Its still bigger than our GM turbos. There are variants of turbine wheel sizes, and for flow and high RPM power the larger 76mm inducer turbine is nice, like 10mm larger than the GM turbo. It has a 64mm exducer vs the 55mm on the GM turbo so it helps flow through the 14cm2 housing vice like 12cm2 on the GM.

There are also variants of the compressor. There is an 81mm exducer compressor, but for some reason it uses a 48mm inducer. This compressor with small inducer and large exducer is essentially designed for spooling more than top end flow, has a low trim value. Ideally I would like something with a 55-60mm inducer and the 81mm exducer. I dont think anyone is going to have any trouble with the 57mm inducer 76mm exducer compressor wheel, because its about the same as the GM turbo, slightly larger trim for better flow through a bit larger housing.

So in comparison
T3 GM8
12cm2 exhaust housing
turbine exd: 55mm ind: ~64mm
6-blade compressor exd: 75mm ind: 53mm

T3 HX40WII, there are other wheel variants, these are for better flow
14cm2 exhaust housing w/ 3" V-band outlet
turbine exd: 64mm ind: 76mm
8-blade compressor exd: 75mm ind: 57mm
internal wastegate, with 20psi actuator, but might be able to hook up the vacuum setup.
compressor housing has 3" V-band outlet and 4" inlet

So the T3 HX40 is not a huge turbo, but its better for exhaust flow than the GMx if you get the wheels above.

If going for a T4 HX40 with 16cm2 housing, you might get decent spool and hold some boost using the compressor wheel with 48mm inducer and 81mm exducer. There is also the smaller turbine wheel which can help spool, that is a 60mm exducer with 70mm inducer. this smaller turbine is still larger than the GM turbo, and in a much larger housing, however the larger turbine will help make it more efficient with lower backpressure without the wastegate open at all. These spooling wheels are also available on the smaller T3 HX40W-II.
 
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The turbo I had on my 6.2 was a hx 55 ,thought it was a 52. I'm going to try a real pro 52 on the 6.5. It is off of a friends p pumped 24 valve and made well over 60 psi. I have a genuine hx 40 with a t3 flange,but it has a broken shaft.
 
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