Quick Answer

Quick Answer: Can you put a tune on a 12v Cummins?

12V dont have dynamic timing, but the VP tune is single event and has dynamic timing. As far as custom tuning goes, you can drive around on a VP tune. Your truck will sound just like a VP motor too.

How much HP can a stock 12v 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 12 valve Cummins put out?

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.

How do I get more boost out of my 12v Cummins?

With your stock fueling you can push the turbo to more than 20psi. If you interupt the signal to the wastegate diaphram you should be able to get another 5-10 psi out of it. once you get there, then, yes the addition of fuel will result in more boost and more power.

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 does a 12 valve tune do?

The 12v tune only eliminates the pilot injection the truck still runs multiple shots after TDC this really has nothing to do with emmisions I mean the Detroit Series 60 has used it since it was conceived in 80s it more just a major advantage of a common rail electronic injector, or in the case of a Series 60 an EUI.

How much is a 12V Cummins worth?

How Much Does A 12V Cummins Swap Cost? Diesel Cummins conversions can vary widely, often reaching $5,000-$10,500 each.

Why are 12V Cummins so good?

What made the Cummins so popular was the fact that its peak power and torque was insanely usable—in fact, the redline is only at 3,000 RPM! The 12-valve was able to get respectable fuel economy while producing torque figures never-before seen in an ordinary pickup truck.

How fast is a stock 12 valve Cummins?

Registered. Mine is about 120 mph.

Is 24v better than 12v Cummins?

In summary, those looking to keep things stock or modest the 24v is the better street engine. If you’re looking for extreme power and performance the older 12v Cummins engine is likely the better choice.

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.

Is 12 valve or 24 valve Cummins better?

The 12 Valve engine is hands down more reliable than the 24 Valve. Even guys who have spent the money to get an aftermarket lift pump (a must with a 24 Valve, along with a fuel pressure gauge) have gone through multiple pumps.

How much boost can a 12 valve Cummins hold?

Yes, the rule of thumb is 40-50 psi of boost, but that’s more because of the increased drive pressures associated with more boost.

How much boost should a 5.9 Cummins make?

On 1998.5-2004 5.9L Cummins you will need to physically modify your wastegate to gain more turbo boost. Doing this without the Boost Fooler will result in check engine lights and codes set into the computer. Stock 98-04 trucks should generate 18-23psi of boost pressure stock (depending on year model).

How can I make my 5.9 Cummins faster?


What Turbo is on a 1st gen Cummins?

Holset Fixed Geometry Turbocharger

1st Gen 5.9L Cummins Years: 1989-1993
Compression Ratio: 17.0:1
Firing Order: 1-5-3-6-2-4
Fuel Injection: Bosch VE44 Mechanical injection pump, mechanical injectors, direct-chamber fuel injection
Turbocharger: Holset Fixed Geometry Turbocharger (VGT)

What is a 12v Cummins?

The 12-valve Cummins, officially the Cummins 6BT, is the engine at the bottom of the family tree of diesel engines (at least in pickup trucks). Its simple, straightforward design is a symbol of reliability, solid engineering and tractor-style torque.

What size turbo is on a 5.9 Cummins?

The turbo features a custom profile, 64mm (actual measurement 63.5mm) billet wheel perfectly mapped to a modified compressor cover and 65mm, 10-blade turbine inside the HE531’s 9cm housing. The Cummins Stealth 64 is one of the quickest spooling turbo’s we have tested for the 5.9L Cummins.

What is Smarty UDC tuning?

UDC stands for User Defined CaTCHER. The Smarty UDC tuning software (PC based) is an ADDITION to the already existing Smarty tuners. This means that the tuning software can be used with any Smarty product, both already sold or new. The concept.

What Cummins Engine is best for swap?

Those looking to perform a Cummins diesel conversion often stick with the 5.9 L Cummins motor found in trucks from 1989-2007 as they feature reliability, power, fuel economy, and simplicity. Arguably, they have been proven to be the best diesel motor to swap into most any application.

What was the last year of the 12V Cummins?

1994-1998 12V Cummins (12 Valve) Features

These additions help reduce emissions output compared to the previous generation.

Can you put a Cummins in a Chevy 1500?

Chevrolets are made with Duramax/Allison engines, a staple of the General Motors brand. It is uncommon to put a Cummins into a Chevy, but it can be done with enough determination. Swapping your gasoline engine out for diesel is going to extend the life of your truck, and the Cummins engine may even outlast the truck!

How reliable is a 12v Cummins?

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.

How much HP does a 7.3 diesel have?

7.3L Power Stroke Specs

Engine: 7.3L Power Stroke diesel V-8
Peak Horsepower: • 210 hp @ 3,000 rpm (intro horsepower rating, 1994 MY) • 275 hp @ 2,800 rpm (peak horsepower rating, 2003 MY)
Peak Torque: • 425 lb-ft @ 2,000 rpm (intro torque rating, 1994 MY) • 525 lb-ft @ 1,600 rpm (peak torque rating, 2003 MY)

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 horsepower can you get out of a 5.9 Cummins?

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.