I have a 2000 12.7 with DCS 3 stage tune
470-550-600hp.
I still have the stock turbo and am wanting to upgrade.
I am considering 171702 171701 or k31
I haul locally, 104k loaded, 32k empty.
I usually use the 550 setting. Sometimes 470 when empty.
Thoughts on which would be best?
Detroit 12.7 turbo upgrade
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Idaho379, May 28, 2022.
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Borg Warner turbo upgrade ??Idaho379 and Big Road Skateboard Thank this. -
I've tried multiple turbos on my 60. The K31 with wastegate plugged outperformed all others in every way.
Quicker throttle response, much more boost PSI, and decent fuel mileage. -
I have two identical trucks, one with k31 and one with 702. 702 has more pulling power up top, but k31 has way less lag, spools much faster.
I personally prefer k31 and I think it would be better in your situation since you are local. 702 is for people who like to fly up the hill doing 70mphjamespmack, Big Road Skateboard, Idaho379 and 1 other person Thank this. -
Thanks for the input guy’s!
sounds like the K31 might be best.
What psi does the waste gate open?
Where has the best price on these?
Prices seem all over the place.. don’t want to end up with a Chinese knockoffBean Jr. Thanks this. -
Do you have a tune? -
With my tuned 11.1 and a K31, i was pulling near 50 psi.
I would think your engine would have came with a K31. Why do you think you need to change?
I buy all of mine from River City Turbo in Little Rock. Think they're 750-800$ now.
Where are you located? -
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Mine is a Garrett. Seems pretty small and restrictive.
I’m in Idaho. -
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