What kind of pressures can you push through a factory first gen turbo before it gets to stressful on the turbo? -

CumminsPowerOrNoPower's Sig:

1998 Dodge 24 Valve Cummins, leveled, Edge EZ, muffler eliminated, silencer ring is MIA, 5 inch exhaust, autometer gauges, 5 speed, FASS fuel, American Racing Rims with 33's. Quadzilla Adrenaline on the way and building some ladder bars.
1993 Dodge 12 valve cummins, custom 4 in. exhaust, pump mildly turned up, in need of some gauges and a tranny.

Well, they say 18 - 24 psi for the old H1C. I might be crazy, but i get to almost 30 psi with mine if i get on it. -

muskrat's Sig:

93 Dodge W250 CTD
Auto Tranny
Tweeked IP
366 Spring
M&H M4 Fuel Pin
H1C/60mm Wheel/14cm Exhaust Housing
4" Exhaust Out 5" Stack

ive seen 32 turbo screaming oh gotta love that sound -

hotcummins's Sig:

12v 5x18s injectors 191 delivery valves 3k springs aroura5000 single i built the all billet tranny and ats 5 disc converter #100 fuel plate fire ringed arp head studs timing 22.0 degrees tabbed kdp quick spool cam and exhaust manifold 5 inch turbo back exhaust w/ 6 inch tip afe intake k&n cold air water meth injection airdog2 165








http://www.dieseldawgs.com/

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im at 25 now....wonder what the new 5x.014's will do to her? -

TTipsword's Sig:

1992 3/4 4x4 cummins, pump maxed, custom exhaust, intake, Denny T II, Cooler Tubz.
http://www.freewebs.com/alexglennie/quagmire.png

before the intercooler and the 60mm upgrade wheel i could just get 30, after the 60mm upgrade wheel i was pushen 45, now with the intercooler all i can get is 37, but the truck runs a heck of a lot better at 37 with the intercooler then 45 without it -

seandonato73's Sig:

1990 Dodge W250, custom intercooler, 4" turbo back exhaust,DDRP fass pump, 3200rpm gov spring, injection pump maxed out, 80hp DDP injectors, upgraded intake housing and compressor wheel,auto meter pyro,boost, fuel pres,and oilpres guages
comming soon: m&h fuel pin set(m2-m5) ,Air dog II fuel pump

1993 F150 264,000 miles on the 302, 6" lift 35x14.50 thornbirds,and still pullen jeeps out of the mud!!
1987 f250 6.9 IDI c6 auto, 2wd beater
1973 F250 hi boy 4x4, 360FE 37" TSL's no lift

That's some intense boost pressures through a first gen. how far can you crank the full power screw in before you approach runaway? -

Different on every pump. Some bottom it out, some get only a couple turns. Go 1/2 a turn at a time, make sure your turbo inlet is un covered, and have a buddy stand by with a 2x6. After every 1/2 turn, snap the throttle to wide open and if it starts to run away get the 2.6 over the turbo inlet. -

RSWORDS's Sig:

That's what i did the first time. Had the air cleaner tube off with a 2x8 ready to slap over it, but i only went about 1/2 a turn because all the places that i looked said it would runaway if you went much more than that. -

Mine is not fully bottomed out. It is all the way in then backed out 5/8ths a turn. I have hit 27lbs before aswell. -

jmono33's Sig:

1990 Dodge D250 R/C, Non I/C Cummins, 727 auto, autometer gauges, ground fuel pin, pump tweaks, straight pipe *waitin for 366 spring to be installed*

what's the trick to backing down the idle, i made a specialty tool to break the jam nut loose on the full power screw, but i cant quite get to the idle adjusting screw and jam nut. -

idle screw jam nut can be loosened with a hammer and screwdriver.. and a little finesse -

Budgreen's Sig:

1993 W350 club cab 4x4 5spd dually.
Homemade custom fuel pin, star wheel and smoke screw cranked. 366 spring, HX35 in a few weeks possibly

i see, and how exactly is this achieved? -

ive hit 38ish with the h1c bit i wouldnt recomend it cause its gonna eventually blow at that kindof rpm!!!!
iv heard 30 is about topps for the safe zone!! -

CumminsPowerorNoPower I believe you have an auto truck. If so take the TPS bracket off the ve pump and it will give you alittle bit more clearance. Then you can use the screwdriver and hammer to knock the nut loose hitting the edge towards the ve. The use a pair of needle nose pliers to adjust it towards the back of the engine, it might take a while. Is your timing bumped? -

921stgen's Sig:

91.5 W250 rusty P.O.S., pods, no afc, pull cable, AM electric FP gauge, Isspro boost, pyro, 366 spring, 91 W350 parts truck, sold-92 W250, 4" lift, 5" AEM intake, 4" exhaust 5" stack, Bully Dog Fuel Pin, pull cable, 366 spring, AM electric FP gauge, Isspro boost, pyro, tach