International Gt37 Turbo Upgrade - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 25 (permalink) Old 04-26-2006, 08:44 PM Thread Starter
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International Gt37 Turbo Upgrade

Howdy ya'll
Im new to this site but Tony Wildman said it was a good one to go too.

I'm running a 97 F350 Crewcab 4x4 5 Speed powerstroke. It pulls a 47 ft tripple tandom dually axel flatbed. This trailer by itself was 7700 lbs. My truck even with a 99 intercooler, banks level 4 big hoss chip, upgraded custom exhaust, the 1.0 housing, gutted ebpv, and open intake couldn't pull this trailer with combined weight of 26,000 over 63 mph at 6,000 feet of elevation with the pyro touching 1200 degrees post turbo. Something had to be done

Over on "thedieselstop" they said that the turbo offered on the 230hp 94-97 international T444E wouldn't work on our pickups. It is a Gt37 none variable vain turbo but is the same compressor housing on the newer 6.0Ls. It directly bolts on with their pedistal and uppipes but a custom downpipe must be made and a intercooler or custom intake to engine must be present.

With this newer turbo with still only stock injectors i can now pull 37,000 lbs with no more than 850 degrees in 5th with the ac on at 75 to 80 mph. I did upgrade to Tony's chip but everything else was left alone. I do have pics but will be up later. The Turbine housing is 1.11 ar and a 3.5" exit. The turbo only builds 20psi but it has 12 at 1700 rpms. I think I don't have enough exhaust pressure to really make this turbo shine. I'm upgrading my injectors to 180cc with the upgraded nozzels to see what happens.

Has anyone else made this upgrade? It bairly fit under my firewall but its in there. But my opinion it makes my truck pull just as good as the new 6.0L but I get better MPG. Even Tony W. got to drive it when I picked up my chip from him in his home town. He said "that it was a one of the fastest spooling turbo's he's seen on a 7.3."

Thanks and I'll try to get the pics up
Let me know if anyone else has done this.
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post #2 of 25 (permalink) Old 04-26-2006, 09:58 PM
 
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Hey, I'm just down the road from you in Cheyenne.:Thumbup:

I would say most of your gains came from the chip that Tony burned for you.

Are you saying you used the turbo for a 99-2003 Super Duty?
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post #3 of 25 (permalink) Old 04-27-2006, 01:54 AM
 
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got any pictures?
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post #4 of 25 (permalink) Old 04-27-2006, 03:35 AM
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umm with turbos u dont need back pressure its actually bad for it... turboed motors want alot of air in and faster out...look at all ur professional drag racin and pullin diesels stack strait out the hood
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post #5 of 25 (permalink) Old 04-27-2006, 04:13 AM
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Quote:
Originally Posted by moose99ps
umm with turbos u dont need back pressure its actually bad for it... turboed motors want alot of air in and faster out...look at all ur professional drag racin and pullin diesels stack strait out the hood


I would have to disagree, the turbo needs some back pressure to operate.

2012 Z-71 Duramax

1987 379 Peterbilt 425 Cat, RTX 15715, 390 rear ends.

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Also drive anything that is overloaded and fast!!



CAN YOU KEEP UP!?!?!?!?
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post #6 of 25 (permalink) Old 04-27-2006, 06:42 PM Thread Starter
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Hey LocoMotioin,
Im in cheyenne everyday for college. You'll have to see it. No it is not a 99 up turbo. It is a 94-97 international turbo. But I don't think it will fit in the newer trucks because of the firewall. Let me know if ya want to see it. Oh and the performance was with the banks chip. I didn't have the Wildman chip till after the turbo had 3000 miles on it.
LocoMotion go to our International Dealership on 1st street and talk to Glen, Ed, or Mike and ask them to let you look at their 97 Parts Book and look at the T444E 230hp and 210 high torque turbo setup. The setup cost me about 2300 dollars including the 200 dollar core price. It took me about 8 hours to complete.
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post #7 of 25 (permalink) Old 04-28-2006, 01:48 AM
 
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wow for that price you coulda had an h2e.
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post #8 of 25 (permalink) Old 04-28-2006, 02:06 AM
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yeah but the H2E is a slug unless you have some fuel and even then they don't spool up quick.
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post #9 of 25 (permalink) Old 04-28-2006, 03:18 AM
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How does that this sound? Just for curiosity

Kyle
Early 99 F-250SD 7.3 PSD 4x4. Auto, tymar type intake, straight pipe, Six inch stacks, Tony Wildman Four position chip, Street race, 80 Tow, 80 Econo, Extreme. Let the smoke roll. Upgraded torque converter. Autometer Ultralights on the Pillar. Running Cooper Discover STT's.
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post #10 of 25 (permalink) Old 04-28-2006, 04:25 AM
 
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Quote:
Originally Posted by lukecline
wow for that price you coulda had an h2e.

I would have just put a H2E on it. Dont they have smaller exhaust housings that can be put on it for better spool?:shrug:
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