12 Valve Cummins, Class Build Help - Competition Diesel.Com

BUCKHNTR · 10-20-2015, 08:15 AM

Hey Everyone,

Personally I am a Duramax and LS Performance guy. I know little or very little about 12 Valve Performance. In Ontario, the pulling club I run my 6.0L LS Powered Sled Pulling Class also allows 12 Valve Cummins to pull. However, after a rule change this year I need some assistance.

They have now changed the rules to give these limiting factors to 12 Valve trucks.

- 62mm Charger Maximum, No Bushings
- Open Injectors and Internals
- Cast Iron Cylinder Head
- No Water Injection
- Air to Air Intercoolers

Assuming you could build any truck you wanted, but with those rules as a limiting factor, I am starting to think that they could certainly build some serious horsepower. What does everyone think would be the maximum amount of HP/TQ that could be created with these rules from a 12 Valve?

Thanks for any help

*EricStaab* · 10-22-2015, 08:25 AM

I would say you could get 700hp. But that wouldn't be skimping on anything.

mfsuper90 · 11-25-2015, 02:32 PM

Keeping egts in check would be a limiting factor with no water/meth and no A/W.
But I agree with Eric, around 700.
That's assuming

isn't allowed lol

10-20-2015, 08:15 AM	#1
BUCKHNTR Name: BUCKHNTR Title: Rookie Status: Not Here Join Date: Aug 2015 Member`s Gallery Posts: 14	12 Valve Cummins, Class Build Help Hey Everyone, Personally I am a Duramax and LS Performance guy. I know little or very little about 12 Valve Performance. In Ontario, the pulling club I run my 6.0L LS Powered Sled Pulling Class also allows 12 Valve Cummins to pull. However, after a rule change this year I need some assistance. They have now changed the rules to give these limiting factors to 12 Valve trucks. - 62mm Charger Maximum, No Bushings - Open Injectors and Internals - Cast Iron Cylinder Head - No Water Injection - Air to Air Intercoolers Assuming you could build any truck you wanted, but with those rules as a limiting factor, I am starting to think that they could certainly build some serious horsepower. What does everyone think would be the maximum amount of HP/TQ that could be created with these rules from a 12 Valve? Thanks for any help

10-22-2015, 08:25 AM	#2
EricStaab Name: EricStaab Title: Sponsor Status: Not Here Join Date: Sep 2012 Location: WI Member`s Gallery Posts: 255	I would say you could get 700hp. But that wouldn't be skimping on anything. __________________ No Limt MFG, Manufacturer of diesel performance engine parts: Billet camshafts, rods, valvetrain components, cylinder heads. We take on the hard and unusual jobs no one else is willing to do. Website: NoLimitMfG Facebook: Nolimitmfg Phone:715-384-4422 Last edited by EricStaab; 10-22-2015 at 08:27 AM.

11-25-2015, 02:32 PM	#3
mfsuper90 Name: mfsuper90 Title: 300ft is all I need Status: Not Here Join Date: Feb 2013 Location: Southeast ohio Member`s Gallery Posts: 769	Keeping egts in check would be a limiting factor with no water/meth and no A/W. But I agree with Eric, around 700. That's assuming isn't allowed lol __________________ ’82 300D benz Bosch MW turned up, HX30, W/A Intercooler MF Super 90 various odds and ends done. Farm stocker MF 98 3-71 screaming jimmy. Needs N90's. Another farm stock '14 Ram Anarchy EFI, G56