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Competition Diesel racing, sleds, dynos, power tuning and max performance.

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Old 06-03-2012, 07:38 PM
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1973dieselhighboy 1973dieselhighboy is offline
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max boost on head studs alone

i have a question i am wondering what the max boost that the factory headgaskets or aftermarket head gaskets will handle with just head studs. engine is a 96 7.3di all mods are in sig, at what pressure would i need to o ring the heads, have read alot on this and dont want to fire ring have heard alot of issues with sealing when cold, and i like the idea of o-ring cause it just seals the factory fire ring in the head gasket tighter. the reason i am asking is i am thinking of building a compound turbo setup for my truck cause my current turbo is maxed out when running up to the 3800rpm mark and running around 40psi boost, i have set down and done a rough mapping on the compressor map and i am way off in the choke side of the map at the 3800 mark but at same boost and a lower rpm say 3000 i am starting to get on the border of the choke side, so i want to add a low pressure turbo to feed this so i am able to build power all the way to red line.
1973 f-250 highboy, 96 powerstroke engine, 5spd, td 6 position chip, 99intercooler, airdog ondemand 2, 3 dp to 4inch stack bw s300sx3 turbo, home made t4 uppipe and flange, sd intake plenum, valair clutch, t500 hpop, sureflow 230cc/100% future 74 crew cab long bed on 88-97 frame. wheeling rig 1987 ford ranger, 88 ford idi, c6 trans, twin stick np205, 2.5ton rockwell front and rear, pinion brakes, hydralic steering, internal 10point cage, dove tail front and rear
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Old 06-08-2012, 06:24 PM
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with what i've seen, head studs are required if your at or above 40psi. i think with the studs, and maybe some nice gaskets you should be good if you're staying around 40 psi.
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Old 01-22-2013, 08:23 PM
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S468 turbo,stock head gaskets, arp head studs,comp 910 springs w/30ths shims---hitting 50 psi boost..
Joey PAA 115
2003 F250 LARIAT 7.3PSD,RHN Member,Fresh Forged Rod Motor,BTS trans,6.0 Trans cooler,DP F6 LIVE TUNED ,FF 300/200 Hybrid injectors,Snow Tow Max water/meth,Hi V/F IDM,BW S468 Turbo w/T4 mount,Terminator DUAL HPOP,AFE Stage 2 XP Pro 5R Intake,ISSPRO ev2 Guages,AirDog 150 w/sump,Walbro fuel pump,SD Regulated Return,XRF front end,Red Head steering box,4.56 Yukon gears,6" BDS lift,37" Toyo tires,Armed with Infinity,& on&on&on
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Old 01-22-2013, 08:23 PM

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