Quick Answer

Quick Answer: What size turbo is on a 12 valve Cummins?

The stock specs for a 12-valve Holset HX35 will vary from year to year and whether the truck was a manual or auto, but the compressor inducer will be between 54 and 56mm. While popular upgrades for common rail trucks range between 64 and 67mm, a hot street 12-valve 5.9 needs to be a bit smaller.

What size is a stock Cummins turbo?

Stock turbochargers usually have large exhaust housings, large-diameter turbine wheels, and smaller compressor-side inducers. For instance, an HX35 turbo from a 5.9L Cummins measures somewhere around 54/69/14, which means it has a 54mm-inducer compressor wheel, a 69mm-inducer turbine wheel, and a 14cm2 exhaust housing.

What turbo is on a 5.9 Cummins?

5.9L Cummins Stealth Series 64mm Turbo.

What size is a HX35 turbo?

Holset HX35 Turbochargers

Holset HX35 Turbocharger Specs
DIMENSIONS:
Length (mm) 224
Width (mm) 250
Height (mm) 169

How much HP can a stock 12 valve Cummins handle?

The forged-steel connecting rods found in the 12-valve 5.9L (and ‘98.5-’02 24-valve engines) are of an I-beam design and capable of easily handling 800 rwhp in stock form.

How much horsepower does a stock 12 valve Cummins have?

The Cummins 5.9-liter 6BT 12 valve has 230 HP, 440 lb-ft of torque, and a P7100 inline injection pump right out of the box. The 12-valve is also a popular engine swap choice, powering a slew of Jeep, rat rod, muscle car, and dragster projects.

What liter is a 12-valve Cummins?

The 5.9L Cummins, also known as the “12-Valve” Cummins was the first member of the Cummins B-Series to be used in a light truck vehicle. The 6BT used Bosch fuel systems, injector, and VE rotary pump and P7100 inline injection pumps.

Will a bigger turbo make more smoke?

A large turbo can cause black smoke. But that’s usually a case of too large to spool on the low end. Then when it lights it should clear up some smoke or all.

What year 5.9 Cummins is best?

1994-1998 2500 &amp
3500

As far as performance potential goes, it doesn’t get any better than the mechanical P7100 equipped versions of the 12-valve 5.9L Cummins. They’re simple, rock-solid reliable, and can easily tick off a half a million miles if properly maintained.

Is 63mm a big turbo?

Description: Engineered Diesel builds custom turbochargers for mega-horsepower sled pullers and drag racers, so while the 63mm unit it submitted was the largest turbo in our test, it’s one of the smallest units it builds. The E.D. unit was also the most expensive turbo tested.

How big is a S475 turbo?

See all 19 photos The S475 was equipped with an 83mm turbine wheel and 1.0 AR turbine housing. See all 19 photos Run on the dyno with the Borg S475, the turbo 6.0L produced 878 hp and 804 lb-ft of torque at a peak boost pressure of 11.3 psi. See all 19 photos Next up was the larger Borg Warner S480.

How much HP can a 5.9 Cummins handle?

The 5.9L inline-six mill’s factory rotating assembly from ’89 to ’02 is capable of handling 800 hp (1,400 to 1,600 lb-ft of torque) without breaking a sweat, and is often pushed into four-digit territory before aftermarket rods become a consideration.

How much HP can a HX35 support?

HX35 is good to around 300-400 hp, i turned mine in to a hybrid and it still is not enough.

What is the difference between HX35 and HX40?

The HX35 and HX40 share a few of the same parts but differ in the size and weight of the turbine and compressor wheels, which is why there’s a lag issue with the HX40 if there’s not quite a bit of extra fuel added. There’s been shaft breakage reported but some folks spin’em up good with no damage.

How much boost does a HX35 make?

“The HX-35 and HY-35 turbochargers are rated for a maximum boost of 44 PSI.

How much boost does a stock 12-valve Cummins have?

Stock you won’t see much more than 25psi. Depending on the turbo you currently have you don’t want to run above 32-35psi.

How fast is a stock 12-valve Cummins?

Registered. Mine is about 120 mph.

How much power can a stock 12v handle?

While the factory 12-valve rods can handle 1,000 hp, Scheid Diesel does recommend upgraded rod bolts anytime you’re in the neighborhood of 800 hp. Scheid offers these heavy-duty 12-point rod bolts, made by ARP, which are 23% stronger than the stock fasteners.

Which year 12 valve Cummins is best?

1996-1998 has the best injection pumps (perhaps ignoring the 1989-1993 VE) and stronger automatics compared to earlier years. Look at the buyers guide section in the thread below. The 1998 12 valve trucks were only built in 1997.

Are 12 valve Cummins reliable?

The Cummins 12v/6BT is widely regarded as the best and most reliable diesel engine ever produced. These engines are extremely simplistic, operating with mostly mechanical components rather than complicated electronic ones. The simplicity allows for massive power potential in conjunction with ultimate reliability.

Is 12 valve or 24 valve Cummins better?

12v vs 24v Tuning &amp
Aftermarket Potential

When it comes to serious power and performance the 12v 5.9 Cummins takes the win. These engines are known to hold up better at extreme power levels when compared to the 24v engines. P7100 injection pumps on the 6BT are easier to mod and support the extra power.

What will 4k governor springs do for my 12v Cummins?

The Industrial Injection 4000 Governor Spring Kit is by far the best modification you will ever do to your 12 valve Cummins engine. The factory governor generally will slowly start to defuel the engine around 2300-2400 rpm and drastically decrease performance and pulling power.

How much HP does a 1999 Cummins make?

24V 5.9L Cummins Horsepower & Torque

Year Trans Horsepower
1998.5-1999 Auto 215 horsepower
2000-2002 Auto 235 horsepower
1998.5-2002 Manual 235 horsepower
2001-2002 High Output Models Manual 245 horsepower

What does a 12 valve Cummins need to run?

All 12-Valves are non-electronic injection pump engines and DO NOT require any electronics from the truck to run.

What happens if your turbo is too big?

A bigger turbo means more power: Not always. Most of the time, a turbo that’s too big will lead to all sorts of trouble, including the inability to spool up and less power than what you started with.

How do I make my turbo whistle louder?

How do I make my turbo whistle louder?

  1. Aftermarket Downpipe.
  2. Open Box Air Filter.
  3. Remove Engine Cover.
  4. Installing Cold Air Intake.
  5. ECU Tuning.
  6. Blow Off Valve.
  7. Turbo Exhaust Whistle.
  8. Recommendation: Which Should You Do.

Why is my turbo whistling?

What causes turbo whistle? Turbo whistle is the sound of the compressor inside the turbocharger speeding up (also known as ‘spooling up’, which is why it kicks in at the boost threshold (when the turbo starts to kick in) as you accelerate up the rev range.

When did they stop making 12v Cummins?

Cummins produced the 5.9L 12v Cummins for Ram pickup applications through the 1998 model year, where it was phased out in favor of a more emissions friendly 24 valve platform. The engine’s widespread applications include light and medium duty trucks, agricultural equipment, and construction machinery.

How many miles will a Cummins 5.9 last?

The Cummins brand is extremely reliable and prides itself on long-lasting engines. The 5.9-liter engine can expect to churn out 300,000 to 400,000 miles.

How can I get more horsepower out of my 5.9 Cummins?

TOP 5 UPGRADES FOR 5.9 CUMMINS