[djbrown]

ok, what i have is ALOT of turbo surge, so im putting on the 1.0 BANKS turbine housing with the BANKS wheel. my question is can i run a 38psi banks wastgate. i have the 28psi banks big head wastgate on there now but i was in question about if i put a bigger turbine housing i would slow things down a bit,, but if i add more boost will this help get it back? ,,,,

i havent maped my turbo surge, yet.i need to find out what range im getting the surge at, the last i saw was 2200 rpm, pulling my 37' horse trailer

 

[444-4D]

What'chu talkin' 'bout, Willis

 

[aklim]

AFAIK, the ATS ported housing is the best thing for surge while the Wicked Wheel is 2nd best.

 

[PStroked444]

ATS You will never look back.:thumbsup:

 

[Slide5th]

Go with the ATS turbo housing,did the same thing your going to do,didn't get rid of the surge till i put the housing on,i tow heavy,21800 on the scale,had the same problem at the same rpm.

 

[Rockrunner86]

Dont waste your money on banks. Listen to the guys that have posted in the thread..

If you have the cash a gt38R would rock..

 

[djbrown]

so, when you put a bigger turbine housing on you lower the amount of exhaust presher on the turbine wheel. this inturns slows down the turbo wheel. thats why the turbo is a 1.0 and the turbine is .84 smaller turbine port causes more presher making the turbine wheel to spin faster.

ever asked the question: why does the turbo wheel have half the full size of full fins on aftermarket intake wheels? wouldnt this pull in less air?


ford says they used the wheel with full fins so it would be quiter. makes a nicer ride.

but what is surge? surge is like cavitation more coming in than going out...? why do we only get surge after we put on bigger exhaust?

Go with the ATS turbo housing: what will this help with? more air?

thanks for all the help.

 

[djbrown]

my real question was, can i use a 38psi big head?

 

[444-4D]

my real question was, can i use a 38psi big head?

Where would you buy one of those?

 

[djbrown]

Banks #24319 , i think this is a dodge part# but then i dont know if it comes with a banks kit.. somthing like a big hoss kit.

this is where all my thinking started from

eBay Motors: FORD POWERSTROKE 7.3 BANKS BIG-HEAD WASTEGATE ACTUATOR (item 230321818763 end time Jan-29-09 18:00:00 PST)=

 

[Rockrunner86]

my real question was, can i use a 38psi big head?

Two part answer.


Why would you want to the stock turbo gets unhappy above about 25 lbs of boost..

And there is no way you have enough fuel to get much over 30 lbs of boost..

 

[djbrown]

what does the meaning of stock turbo mean? if i put a wheel and turbine housing on it and a new rebuild, your saying that it wouldnt hold up? do to it not having bearings?

 

[Rockrunner86]

what does the meaning of stock turbo mean? if i put a wheel and turbine housing on it and a new rebuild, your saying that it wouldnt hold up? do to it not having bearings?

A stock turbo no matter the mods done to it will not hold up about about 25 lbs of boost. And no it has nothing to do with having bearings. Infact it has a journal bearing. The problem lies in the drive pressure being so high in a stock turbo in order to make more than 25 lbs of boost.


Drive pressure is the amount of restriction the turbo is causing to the exhaust gasses pre-turbo. When the ratio between drive pressure and boost pressure gets to high it caused premature bearing failure with in the turbo.

 

[aklim]

A stock turbo no matter the mods done to it will not hold up about about 25 lbs of boost. And no it has nothing to do with having bearings. Infact it has a journal bearing. The problem lies in the drive pressure being so high in a stock turbo in order to make more than 25 lbs of boost.


Drive pressure is the amount of restriction the turbo is causing to the exhaust gasses pre-turbo. When the ratio between drive pressure and boost pressure gets to high it caused premature bearing failure with in the turbo.

Someone said that the stock Van Turbo can hold up to more than 25 psi. Do you think that is going to be true?

 

[444-4D]

Banks #24319 , i think this is a dodge part# but then i dont know if it comes with a banks kit.. somthing like a big hoss kit.

this is where all my thinking started from

eBay Motors: FORD POWERSTROKE 7.3 BANKS BIG-HEAD WASTEGATE ACTUATOR (item 230321818763 end time Jan-29-09 18:00:00 PST)=

Ok, I see what you are looking at. That PSI rating is not a boost PSI rating, it is the pressure rating of the spring inside the actuator. Increasing the spring pressure won't increase the boost unless the one you are currently using is blowing open from exhaust pressure. If you are using a Banks actuator it isn't blowing open too soon. But yes if it will bolt on and adjust you can use it.

 

[444-4D]

do to it not having bearings?

That is sort of correct. The thrust bearing on a stock turbo is designed for max boost of 25 psi. On a ball bearing turbo the thrust is supported by the ball bearings and they are designed for a max boost of 40 psi.

 

[Rockrunner86]

Someone said that the stock Van Turbo can hold up to more than 25 psi. Do you think that is going to be true?

I don't know much about the van turbo, other than people saying it is more efficent. So it would make since that it could handle being at a little higher boost level.

The Banks wheel, ww etc (all the same exact thing) lower the efficency of the turbo. This eliminated or helps surge at a loss of efficency.

 

[444-4D]

Someone said that the stock Van Turbo can hold up to more than 25 psi. Do you think that is going to be true?

The van turbo and the pickup turbo use the same thrust bearing.

 

[djbrown]

The Banks wheel, ww etc (all the same exact thing) lower the efficency of the turbo. This eliminated or helps surge at a loss of efficency


so with being said is it better to leave the stock wheel on and change the turbo intake housing and lets say the turbine housing... really what is the best change to be maid and still get performanc out of the turbo..(with out buying the high doller turbo)

im getting to the point of being confused..and im a good wrench. theres so many diffrent opinions on this topic. i gess the one answer is "what works for me"

 

[Powerstroke660]

banks wheel

I have had a hard time believing too that a banks wheel is designed to lower the boost to help get rid of surge. But with my experience with these motors & the Cummins motors is that if you increase flow then your boost numbers will drop. Meaning if you have a current setup that you make 24 pounds of boost and you increase airflow then it will most likey drop 2-4 pounds of boost. I am talking flow between the turbo and cylinders (Not cold air intakes).

If you look at a banks wheel vs stock then the banks looks like it flows way better than a stocker. and I do believe that the wheel flows more than a stocker that will result in lose in boost due to not needing as much boost to do what it did before improvement.

I have seen these results on more than 1 or 2 trucks.

also I have seen turbos for $1300 for a performance turbo that is pretty much a GTP38R except its not a ball bearing and it requires a core charge. So why would they require a core charge if they werent using the same center housings? These turbos have 88mm wheels and come from rep. dealers? Whats different with those turbos?


just my 2 cents