Momentum Worx

75MM ULTRA Hybrid K31/GT42 Turbo Upgrade for Detroit 12.7L

Name: 75MM ULTRA Hybrid K31/GT42 Turbo Upgrade for Detroit 12.7L
Brand: Momentum Worx
SKU: MMWX.K31B
Price: 1100 USD
Availability: InStock
Rating: 5 (1 reviews)

(1 review) Write a Review

SKU:: MMWX.K31B
UPC:
MPN:: MMWX.K31B

$1,100.00

Current Stock:

Quantity:

Description

Description

The ULTRA Turbo upgrade for Detroit 12.7L engines takes the guess work out of finding the perfect turbo size for your stock or lightly upgraded 12.7L Detroit Series 60 engine.

This turbo takes advantage of a very efficient turbine and tighter exhaust housing to provide quick turbo spool up while having a large compressor wheel to still make tons of boost pressure and CFMs. While many folks want to upgrade to the famous "702" turbo, or BorgWarner 171702, the 12.7L Detroit engines often struggles to spool the 702 because of the larger turbine. The ULTRA turbo gives you a similar sized compressor wheel, mated with a smaller turbine wheel and housing that your Detroit 12.7L can actually light, giving you power right away instead of high EGTS and terrible turbo lag.

Specs

Compressor Wheel: 75MM/102MM (Billet 6+6)

Turbine Wheel: 82MM/75MM

Exhaust Housing: 1.15 A/R (Divided T6)

What makes the ULTRA different from a K31 or GT42?

The BorgWarner K31 (172732) is a very common replacement for the Garrett GT42, as it consolidates many GT42 turbos into one K31 part number.

While the BorgWarner replacement does feature an upgraded billet wheel, its only a 71MM inducer, opposed to the larger wheels available previously with the GT42. The K31 is also a much bulkier frame then the GT42 which can be an issue for tighter engine bays or any application with minimal fender/frame rail clearance.

The ULTRA Hybrid combines the best of everything from both the GT42 & K31:

-Compact Frame

-Billet Wheel

-Massive 75MM Inducer

-Efficient Turbine

Simply a FANTASTIC upgrade for your stock light modified 12.7L Detroit Series 60 Engine

Rest assured that we stand behind this turbo no matter what you do to it: as the ULTRA comes with the MOMENTUM WORX unlimited warranty, which means we will replace it one time for ANY REASON, no questions asked - within the first year.

If you have any questions at all - please feel free to call us at 215-237-9672 or email us at Info@momentumworx.com

Cross Reference Numbers for the stock turbo:

23522188	23526679	23523040	0R7575
23522189	23528052	23525462	0R7578
23522190	23528059	23525464	0R7579
23522312	23528062	23526682	0R7292
23525463	23528064	23526885
23526016	23528065	23528055
23526271	23528069	23528058
23526272	23529103

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1 Review

1 Review

5
Great customer service

Posted by Yvan Lacroix on 26th Feb 2024

This is a great turbo for a 12.7 l series 60. Great spool up, higher boost at lower RPM compared to original turbo. More importantly though is the amazing customer service. Second to none.