i have efi but putting on turbo ?? - Chevy and GMC Duramax Diesel Forum

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post #1 of 37 (permalink) Old 02-18-2012, 10:26 AM Thread Starter
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i have efi but putting on turbo ??

im upgrading to gt4094 found one used i already tuned with efi so will it run fine or do i need to change tuning and if i do what needs changed ive been told tuning needs changed and been told no its fine

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post #2 of 37 (permalink) Old 02-18-2012, 11:02 AM
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I think the answer to the question "will it run?" is yes......but the issue will be that you won't be getting the most out of your setup until you have your EFI tunes/tables adjusted for the new turbo which will have a different mapping from the stock turbo.

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post #3 of 37 (permalink) Old 02-18-2012, 11:25 AM
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just to double check you are talking about the 4094vvt and not the 4094r correct??

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post #4 of 37 (permalink) Old 02-18-2012, 11:35 AM
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just to double check you are talking about the 4094vvt and not the 4094r correct??
Do you not like the gt 4094r?

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post #5 of 37 (permalink) Old 02-18-2012, 11:42 AM
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Do you not like the gt 4094r?
Basically two different turbos...one being a variable vein turbo and one being fixed geometry.


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post #6 of 37 (permalink) Old 02-18-2012, 11:49 AM
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Originally Posted by EvolveWelding View Post
Basically two different turbos...one being a variable vein turbo and one being fixed geometry.


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I know that. The way sick diesel said it seemed like he didn't like it. That's the turbo I plane on getting

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post #7 of 37 (permalink) Old 02-18-2012, 11:55 AM
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Quote:
Originally Posted by joegorby View Post
I know that. The way sick diesel said it seemed like he didn't like it. That's the turbo I plane on getting
I think he's answering the questions, tuning requirements change based on vvt or r.

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post #8 of 37 (permalink) Old 02-18-2012, 11:56 AM
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Quote:
Originally Posted by joegorby View Post
I know that. The way sick diesel said it seemed like he didn't like it. That's the turbo I plane on getting
I have a ppe 4094r kit being installed on my lmm right now and I had a 4094 on my Subaru which was disgustingly fast...I love that turbo. Although I've never been in a 4094vvt truck...I think ill still like a reg 4094 better personally.


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post #9 of 37 (permalink) Old 02-18-2012, 12:07 PM Thread Starter
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ya 4094vv guys

08 3500 ltz 4dr long bed 6 in lift deaver springs fox shock custom straight axle d60 fox coilovers. Smitty bumper warn 16.500 winch recon head lights royalty core grille protech headache rack 100 gal tank tool box. Mike l trans. S475 over stock 40 over nozzles airdog 150 and robs tuning
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post #10 of 37 (permalink) Old 02-18-2012, 06:36 PM Thread Starter
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nobody has exact info?

08 3500 ltz 4dr long bed 6 in lift deaver springs fox shock custom straight axle d60 fox coilovers. Smitty bumper warn 16.500 winch recon head lights royalty core grille protech headache rack 100 gal tank tool box. Mike l trans. S475 over stock 40 over nozzles airdog 150 and robs tuning
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