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01-06-2012, 01:12 PM
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#1 | ||||
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I grad-u-ated frum Claudes skool of tpying....
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How much boost for an H1C?
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The Work Rigs '10 Ford F-550 6.4 p/s 19' flatbed/'08 Ford F-550 6.0 p/s Wrecker 86' Chevy C-30,360 w/sidewinder heart transplant from the death machine Quote:
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They call me Joe Dirt |
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01-06-2012, 09:26 PM
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#2 |
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I think if your making that much with it unmodified your at risk of over spinning it.
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1993 250 single cab 4x4, "Big Red", Phatshaft 62 Turbo, 4" exaust, NV4500, Southbend 13'' clutch, Industrial Injection performance pump, 5x.014 sticks, Raptor 100 fuel pump w/ Donaldson prefilter, 4" skyjacker and 37" Goodyear Wranglers on 16.5 old school chrome wheels. 361hp and 787 ft lbs on 4/13/2013 1991 Toyota P/U w/ 4bt, th350, coil spring dana 70 rear and 60 front (welded) w/ 5.87 gears and 44x19.5 Boggers. |
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01-06-2012, 09:50 PM
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#3 |
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I can make close to 45 with mine I never had a problem.
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Bill 91.5 D350 regular cab dually 3.54, Built 518,Goerend convertor,potentiometer, isspro tach, 60psi boost gauge, pyrometer, trans temp gauge, fuel pressure gauge, 4" de exhaust, bd killer b 63/68/14, arp studs, ported and polished head, 3 piece manifold, 366 spring, DennyT II, Half turn from runaway, dap 5x14's, grid heater delete, custom air box and bhaf. Fass and 1/2" fuel lines . 208,000 mi. Kdp killed. |
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01-06-2012, 10:25 PM
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#4 |
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Registered User
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I hit like 36psi with mine...I think having a large exhaust housing helps...
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1989 D250 2wd Scheid 14mm H/R and 5x25's, 3200 spring, Goerend converter, J&H Performance 47RH trans, AirDog II, BHAF, 4-inch downpipe and exhaust, DennyT fuel pin, ported, o-ringed and ARP studded head, external wastegate, 62/65/14 S300 w/internal gate, two stage NX nitrous, big timing, 487 on fuel, 972 on two guns. |
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01-06-2012, 11:07 PM
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#5 |
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Unless it's untaxed, then it's red.
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I've never been past 33. Head gasket is ready to let go at 40. Careful there bud.
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4" straight pipe, M & H timing spacer, DNR POT kit, DNR intake, S&B filter, gloss black frame, deep/vented trans pan, KDP killed, 1 ton shoes with 1 1/8" wheel cylinders |
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01-06-2012, 11:38 PM
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#6 |
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Administrator
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I was getting 56 PSI on mine until I bumped the timing 1/8" and that dropped it to just off the end of my gauge on a hard jump on the freeway, but I also have the HTT upgrade.
Jim
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1991 D-350 LE dually, 727 auto, ps, pb, cloth interior, 6BT, banks exhaust, RAM AIR, Leece Neville 160-amp alt, triple batteries, relay controlled Silver Star headlamps, LED marker lamps, ICC headlamp "flash" switch, grover air horn, full gauges, RED UH-1 cockpit light, 1,000,000 CP unity spotlight, 3000 watt inverter, First Aid crash kit, military style pintle hitch. Lot’s of pictures in my gallery. "Truck Of the Month" for August, 2005 |
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01-08-2012, 01:04 PM
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#7 |
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I grad-u-ated frum Claudes skool of tpying....
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ok that helps as to what im looking at doing next....maybe a he357?
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01-08-2012, 01:07 PM
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#8 |
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Registered User
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he351 you mean.
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Derek B. 91.5 W250, getrag, DD org. valair, HE351CW, PS IC, C-tubz, Alcans, Bilsteins, GV OD, airbags, DennyT1, pump turned up. |
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01-08-2012, 01:18 PM
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#9 |
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I grad-u-ated frum Claudes skool of tpying....
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yep that one theres also a he 351ve right
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01-08-2012, 01:20 PM
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#10 |
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Registered User
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Yes there are two different ones, he351CW and he351VE
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01-08-2012, 10:24 PM
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#11 |
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Registered User
Join Date: Mar 2008
Location: Orange County, California
Posts: 3,719
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I remember Pulltilbroke telling me some time ago that he hit 55psi with the baby (50mm) h1c. I can bet that only happened at time or two before he upgraded. Anymore than 35psi for something in that size-range is just blowing hot, inefficient air.
My hybrid, Super 40/35 pushes no more than 37-38psi at WOT with the wastegate disconnected. At that point, drive pressure must be opening the wastegate for me, which is good!  It pushed about the same with the set of 4x.014s I ran before the 5x.012s I have now. I can't recall how high I pushed my baby h1c, maybe into the low 30s, as I had very little mods done while running it and honestly didn't really turn up the pump until early last year.
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"My name is Jim, but most people call me.... Jim" - Blazing Saddles - - '90 D350 "Rust Bucket Hunter" - - Giles' 12mm VE - Airdog II 165 - XDP sump - Bradley's Diesel 5x.013s (68-70lpm) - Powerstroke I/C - Fluidampr - HTT Super 40/35 'gated 14cm - 4" exh. - '01 NV5600 - SB Con OFE Clutch - D70 3.54 - 263HP / 610ft. lbs. (Aug. '10: prior to Giles VE, AirDog, XDP sump, 5x.012s and Powerstroke I/C) Updated numbers: TBD Up and Cummins - Paint - |
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01-08-2012, 10:25 PM
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#12 |
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Registered User
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I'm running an H1C/HTT stage IV upgrade and I get a lot of needle bounce on anything above 38 pounds. I have seen 42 pounds max in an empty truck with a little help from the liquor cabinet.(H20/meth)
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1992 W350 LE reg. cab,Bullydog fuel pin slightly modified,3200 rpm ,tweaked pump, added timing, 4 inch exhaust from turbo out behind rear wheels, no muffler, BHAF, H1C/16cm with HTT Stage IV upgrade, bigger injectors,Piston LP,DTT Torque converter w/ shift kit,3:54 open axles,1999 club cab seats,reg.cab. My truck is also an alcoholic! July 2006 VA Chapter Truck of the month265hp/558 foot pounds and still looking. |
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01-09-2012, 12:48 AM
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#13 |
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hello
Yes there are two different ones, he351CW and he351VEis what is the difference? Is it in the waste gate or the compressor 14mm vs 16mm ? |
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01-09-2012, 11:39 AM
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#14 | |
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Registered User
Join Date: Mar 2008
Location: Orange County, California
Posts: 3,719
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Quote:
The sizes you're thinking about are typical sizes of the turbine housing scroll only rather than millimeters, it's measured in square centimeters cm2. |
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01-09-2012, 06:30 PM
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#15 |
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Registered User
Join Date: Sep 2004
Location: Tijeras, New Mexico, 7,000ft up
Posts: 3,276
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I can hit 40 PSI (which is a lot for this altitude) with my Stage IV H1C, but I think my head gasket is blowing snot bubbles at 40.
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MARK '93 W250, HTT Stage IV/16cm, POD's, cut AFC pin, Pump advanced, Pyro, Boost, Fuel Pressure Gauges all non functional, burned wiring, 3/8” fuel line, BHAF on custom intake, 3,200 Spring, ARP Studs, New Head at 392K, Detroit Locker, NV4500, other stuff… |
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01-09-2012, 06:30 PM
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