PPE GT40R LB7 Testing Results - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 32 (permalink) Old 01-25-2007, 01:53 AM Thread Starter
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PPE GT40R LB7 Testing Results

I would have to say that the PPE GT40R kit has really worked out. I have been testing it in different conditions for months. This is definetly not a girlie charger, and is definetly comperable to the aurora 2000 and 3000 and one step ahead of the BD kit. Max boost with the dual fueler kit on it was 45 psi.
On a 5% grade, I was going 80 MPH, towing a 13k pound trailer and was at about 1150 egt max. The turbo definetly smokes a lot. Pat was not the first person to get the GT40R, I was the first customer, way back in august. I am waiting on the prototype intake tubes, and some dyno numbers, and 1/4 mile times without the lift kit to complete the testing. It is a good towing charger, especiall ypaired with the dual fueler. The housing is smaller than the one casper ran, for towing. 1/4 mile results with the lift kit and a 30 MPH headwind, and no duramaximizer are [email protected]

I will post dyno results after this saturday, and that will be an inital dyno.
The nickname is the tow and go charger.

2001 Chevy SB/CC Duramax LB7

Garrett GT4088R from PPE, PPE Duel fuelers, PPE Tuning, PPE stage 4 transmission w/suncoast 1056 converter, PPE Lift pump, Fabtech tie rods, Black Eagle alloys.
Engine is apart and in the garage
Goal is to have it done by the end of this summer.
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post #2 of 32 (permalink) Old 01-26-2007, 01:37 PM
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I'd love to see what COT was at 45 psi...

edit, Compressor Outlet/Discharge Temperature

Michael
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post #3 of 32 (permalink) Old 01-26-2007, 03:00 PM Thread Starter
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If you are talking about egts, about 1500* at peak boost.

2001 Chevy SB/CC Duramax LB7

Garrett GT4088R from PPE, PPE Duel fuelers, PPE Tuning, PPE stage 4 transmission w/suncoast 1056 converter, PPE Lift pump, Fabtech tie rods, Black Eagle alloys.
Engine is apart and in the garage
Goal is to have it done by the end of this summer.
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post #4 of 32 (permalink) Old 01-26-2007, 03:10 PM
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I am referring to efficiency. The temp of the compressor discharge. i edited the post above.

This is a really big factor in being able to sustain a grade in the summer under extreme load. It is the most important number for the towing operator. And I expect it is a whole lot better that the GT37 at those boost levels

IMO

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post #5 of 32 (permalink) Old 01-29-2007, 07:31 AM
 
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Dieselson

I wonder how much testing "your" doing when you make these statments? I think that it's great you have an interest in diesel trucks but when I was introduced to you at the Redline Dyno day I was shocked to find out you were only 11 years old. So the name is truely Diesel son and you dad's truck was nice.
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post #6 of 32 (permalink) Old 02-06-2007, 03:11 AM
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:Thumbup: To you son, Even if it is your pa's truck obviously you are getting a good education and getting involved in something to keep you out of trouble.

1979 f350 4x4 6.9 Diesel,Everything new or better than.

Mechanically injected cause chips are for dippin
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post #7 of 32 (permalink) Old 02-06-2007, 03:19 AM
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I'd imagine his father is also posting under this name.

The fact that he wants to learn so much about DMaxs is a good thing, Steve.
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post #8 of 32 (permalink) Old 02-06-2007, 04:00 AM
 
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Quote:
Originally Posted by Diesel Tech
Dieselson

I wonder how much testing "your" doing when you make these statments? I think that it's great you have an interest in diesel trucks but when I was introduced to you at the Redline Dyno day I was shocked to find out you were only 11 years old. So the name is truely Diesel son and you dad's truck was nice.
You have said a large single is useless for towing, and that you've tested them all.

I've seen Dieselson's family truck, and it tows a pretty hefty trailer with no problems. It is tuned specifically for towing heavy IIRC.

Sounds like he's done more testing on singles than you.

Not sure what his age has to do with anything. Didn't know there were age requirements for hotrodding.
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post #9 of 32 (permalink) Old 02-06-2007, 11:15 AM
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I had to remove a few posts that had nothing to do with this topic, and edit one for content. Please keep the conversation to the PPE charger testing.
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post #10 of 32 (permalink) Old 02-06-2007, 12:34 PM
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Quote:
Originally Posted by McRat
You have said a large single is useless for towing, and that you've tested them all.
How about something that is 80% efficient at 30 psi, 50+ lb/minute?

I am still waiting for a swappable VVT with larger compressor, and some nice big CAC pipes.

If only someone could design a better VGT that does not encounter so much drive pressure.

Hell, I would be happy if someone would just market a downpipe (and new heat shield) with 50% more flow area. It is hard to suggest a new exhaust to anyone with that restrictive downpipe.

Michael
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