grumpy old know it all says no O-rings

[Teen wolf]

The five or so posts above confirm my Theory... thanks for the info guys

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06 black mega 4x Billet auto shiftenhansed D preditor tuff 5" 37's B special fooler riderites custom airbag muff delete redline catylist, Commander , AR-15..etc...."True Outlaws can survive"

[BigDodge59]

i have tq'ed mine to 155lbs in 5lbs sets from 65lbs. i have now retq'ed 5 times at 155lbs. i ran 7 passes on it wedesday night(70psi) and no leaks.

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96 12v 2500 215hp pump,DV's,4k spring, SB66,suncoast con.
95 24v 1500 13mm p-pump,PH71, DDP's comps, HTS full billet tranny.
Southern Diesel Performance (205)533-0453

[NM12VALVE]

This is great news, Im gonna start designing my twin setup SOON then Cant wait. I think Ill start torqueing now so Ill be all ready for the twins

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98 RAM2500 AUTO 4X4 12 VALVE!!!!!BHAF, FUEL PLATE AND AFC FORWARD, HOME GROUND 100, BOOST ELBOW, A-METER BOOST PYRO AND TRANS, 5" INTO 6" MITRE CUT STACK, SILENCE RING GONE ATS CONVERTER AND BUILT TRANS KDP tabbed-timing 16 deg-3GSK, stage 2 injectors

[UrbanCummin]

Originally Posted by plvaulter06

Ok so i just talked to a grumpy old guy, who says he has been building 5.9 12v's and 8.3's for sled puller's in the mid west since the early 90's and before.

I actually called him to ask his shop to O-ring my head. He said that is a waste of time, and that the only way to do it is to o-ring the block.

Then he told me that I was just damaging my pump having a zero plate and stock "pop it valves" (Delivery Valves) because because the valves can't flow enough and it just builds tons of pressure in the pump cylinder and it can't get out. And also said that I wasn't running nearly enough timing.

He claims to have a 96 that runs 11. something 1/4 don't remember exact, on 85 lbs of boost and a stock head gasket and stock head bolts. He said that the stock will hold as long as you have the truck set up right aka pump set up right, right DV's, right timing for your setup.

what do you think????? He was really knowledgeable, seemed to know everything i do, and a lot more, so i don't really have any reason to not believe him.

You'd be surpirsed at what some of these old mechanics know. I mostly agree with what he told you.

The service manager in my shop has been doing pumps for 25+ years and he has seen a lot of pumps that have been cranked up to far and tried to push to much fuel through stock injectors resulting in hammered out camshafts. Really if you think about it a stock pump with put "B" amount of fuel through "C" sized injectors. You turn up your pump and your trying to put double "B" through the same sized injector. It is a lot easier on the pump to go with bigger injectors and go easier on the pump mods.

I have heard that if your block and head are machined very flat and with a really good finish that they can hold 100psi +, but most machine shops are capable of being nearly that accurate.

That being said there are a lot of old guys out there that are frightened by modifications and anything that isn't stock (or very close too) is stupid and a waste of time in they're opinion.

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1999 Dodge 2500 ext cab, short box, 4x4, Edge comp, Built auto, AFE stg 2, 4" straight pipe, lots more soon to come. 53 block

[mattpopp]

The only advantage i see using studs over bolts, is that you have to torque bolts higher to get the the desired torque at the threads. You lose torque on a bolt through it wanting to twist. A stud wont twist as you are just tightening the Nut. So if you torque a Stud and a Bolt to the same ftlbs you will have a bit less torque at the threads on the Bolt. And more you torque a bolt the more you fatigue it through the twisting of it. Thats my argument.

I dont know if yall use competition diesel forum but Moose(one of the founders of the site). He has a Ford that Joe Hellmen did the CTD swap on it for him. the cummins in it is putting out around a 1000hp. He is using studs with the factory head gasket. He was telling me he will not use fire ring or oring head. He wanted the head gasket to be the weakest leak. He had a good point, If something fails because of pressure or boost the head gasket is the cheapest fix.

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07.5 6.7l 2500 MegaCab 6sp Auto, 4x4 Inferno Red, Tough Country front Replacement,Browns Rear Replacement NFab crappie 6 steps, 20" Black Rockstars, 33" Nitto Terra, Bilsten 5100, B & W Hitch,5" TBE, AFE Mega C., MP8 & PMT
96' 2500 4wd, 47RE, Ext Cab, Stock, 134k ANTI-
If he brings you to it, He will see you through it

[plvaulter06]

for those of you that have done a head job, or studs... how long will it take me for the first time to replace my head bolts with a set of new bolts from cummins? I called em the other day and it was just over $100 for all 26 of them or whatever it is and i figgure im probably better off with a set of new ones

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'94,2500 4X4, 5 sp, leveled, 35" M/T's, DDP II sticks, K&N, Single stack, #0 plate, disabled wastegate, 4K GSK, HD 60# valve springs, Valair ceramic 600 HP single disk clutch, Water/Meth, DIY propane, WMO blend,