Ford Powerstroke 94-98 7.3L Discussion of 94-98 7.3 Liter Ford Powerstroke Turbo Diesels

which turbo?

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  #1  
Old 01-17-2011, 10:06 AM
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Old 01-17-2011, 10:32 AM
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Better?

It depends on what you will do with the truck.
There are no pictures of the compressor wheel in the ad for the 1.0 A/R turbine turbocharger.

However, the compressor wheel in the .84 A/R housing is what you want. The drawback to the smaller turbine housing on that turbo is that you WILL feel a huge DECREASE in power at high RPM. It is far too restrictive to flow well at high RPM and will cost you power and will cause higher EGT. If you have an intercooler, it would work ok for spool-up times, but would still feel constipated at high RPM.

I would recommend going with the 1.0 housing turbocharger if you must.
 
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Old 01-17-2011, 10:53 AM
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Originally Posted by PHPDiesel
Better?

It depends on what you will do with the truck.
There are no pictures of the compressor wheel in the ad for the 1.0 A/R turbine turbocharger.

However, the compressor wheel in the .84 A/R housing is what you want. The drawback to the smaller turbine housing on that turbo is that you WILL feel a huge DECREASE in power at high RPM. It is far too restrictive to flow well at high RPM and will cost you power and will cause higher EGT. If you have an intercooler, it would work ok for spool-up times, but would still feel constipated at high RPM.

I would recommend going with the 1.0 housing turbocharger if you must.
I did this .84 upgrade over 15k miles ago and all summer pulling my 30ft camp trailer I never once saw egt's over 1350*. I used to hit 1500* daily with the 1.15. And the hills in Utah are 8% and steeper.
 
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Old 01-17-2011, 11:13 AM
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Old 01-17-2011, 11:30 AM
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yeah its all about cash.... im not really looking to go to big just need something that works and is pretty good.

---AutoMerged DoublePost---

is there any difference in mileage between them? i plan on buying a down pipe this week since it would be easier with the turbo out.
 

Last edited by [[ChRiS]]; 01-17-2011 at 11:30 AM. Reason: Automerged Doublepost
  #6  
Old 01-17-2011, 11:31 AM
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Cash...

Then that Flebay link for the one with the 1.00 housing...

No smaller then a 1.00 housing.
 
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Old 01-17-2011, 01:35 PM
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What is the problem with the .84??? I have a video clip at 130mph pulling up a moderate hill and @ 1300* egt and 28psi boost with a 4" ex. intake and chip otherwise stock and trust me i was pushing the hell out of it
 
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Old 01-17-2011, 04:37 PM
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Originally Posted by strokin'
What is the problem with the .84??? I have a video clip at 130mph pulling up a moderate hill and @ 1300* egt and 28psi boost with a 4" ex. intake and chip otherwise stock and trust me i was pushing the hell out of it
130mph... Really??? Because I call bullshit on that one.

The problem with the .84 housing is its too small, your drive pressures would be in the 70-80psi range...
 
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Old 01-17-2011, 05:15 PM
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I tore the turbo out of a 97 last week and replaced it due to a .84 A/R turbine housing. The insane drive pressure caused the thrust bushing and sleeve to disintegrate and ruin the compressor wheel and housing. Super Duty turbos suffer the same fate due to the smaller turbine housing.

---AutoMerged DoublePost---

Originally Posted by CSIPSD
130mph... Really??? Because I call bullshit on that one.

Stock tires with 4.10 gears would put the RPM at about 4200. Not happening.

3.55 gears would be 3571 RPM. Feasible, but likely not enough power on stock sticks to overcome wind resistance.
[color=grey][size=-2]
 

Last edited by PHPDiesel; 01-17-2011 at 05:15 PM. Reason: Automerged Doublepost
  #10  
Old 01-17-2011, 05:25 PM
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Unless the speedo was off due to diff sized tires and not correcting the speedometer, greater the speed the greater it's off


So it may of said 130, but I say bs, not that he's trying to lie
 


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