Ok, moving along! In the middle of getting an o-ringed and ported head and a set of ARP studs. Got it fired up, everything torqued to 140 lb-ft, and tomorrow goes on the turbo and downpipe. Now it's time to hit it with two more stages of nitrous

Anybody push the limits of this type of setup on a 1st gen yet?? The other good news was that my deck on the block was super flat--less than .004 of an inch. (.006 is within factory specs).

http://blogs.dieselpowermag.com/6601...ate/index.html

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1989 D250 2wd New Era 6x16's, 3200 spring, Goerend converter, J&H Performance 727 trans, 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, three stage nitrous. New dyno numbers soon! Old numbers 448/842.

I dont know if you consider this pushing the limits or not. But ive got my orings and 12mm studs torqued to 138ft-lbs and it has held afew short burst of 80-85psi with the twins. And holds a steady 70psi when ever I mash the pedal on the weekly basis.

Do you know the wire diameter and protrusion you used?

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Josh

93 250 4x4 5spd....14mm pump, 6x16's, aeromotive supply, and S362/HT4B twins. 516hp/959ftlb tq on Dunbars at SDX 09. NEEDS TUNING!

I knew it yesterday when I got the info. I think it was something like .041 and .008 (??)

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1989 D250 2wd New Era 6x16's, 3200 spring, Goerend converter, J&H Performance 727 trans, 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, three stage nitrous. New dyno numbers soon! Old numbers 448/842.

JQ, it's not stated in your sig, but have you tweaked on your pump? if so, what kind of EGT's are you seeing running on fuel alone? are they staying cool with the htt stage VI upgraded compressor on the h1c? i've only got 4x.014's (nowhere near the 6x.016's you're running), but i've been told that even with a 60mm upgrade, the h1c won't be able to cool very well when i start tweaking the pump.

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"my name is jim, but most people call me.... jim"
- blazing saddles -

- '90 D350 LE Cab & Chassis -
159" WB - Custom 9' bed - Fuel pin turned - 1/2 Turn On Starwheel - 4x.014's - Piston LP - Banks Intercooler - 4" Turbo Back, Sans Muffler - 500K+ Miles (ODO Stuck @ 258K) - NV5600 - D70 3.54 LSD - Autometer Tach - VDO Boost - Autometer UltraLite II Pyro

Wish List: GDS 60mm, 3" Cooler Tubes, M3 Fuel Pin

With my hx35/40 (six blade) hybrid with the 18cm housing, 2nd gen intercooler and 3" piping running at 40-50psi with the pump as close to maxed as i can without it hangin, my egts get over 1400 pretty easily in 5th. Stock injectors.
I am now looking for a hx40 to cool stock non i/c injectors for towing...

I guess I should mention I also ran a 12cm wastegated at 42 with similar results egt wise...

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90 w350 DRW Getrag- 4 inch from the downpipe back, hx35/40 18cm, 2nd gen intercooler, 1/8 timing bump, m2 fuel pin, 3200 spring, smoke screw out, star wheel up, south bend con o.
17 mpg city, 22 highway to date. 3.54s
1994 dodge 2500. 47rh. Body swap candidate.
1984 k5. 6" lift, 38s.
1979 Camaro. 11.49@118 Street trim.

Fuel screw is turned in pretty far, but I don't have full travel yet on my linkage (kickdown doesn't have enough travel) still I see about 1500-1600 by the middle of 3rd gear on fuel only, 1400 with water, and 1300-1400 with nitrous and no water.

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1989 D250 2wd New Era 6x16's, 3200 spring, Goerend converter, J&H Performance 727 trans, 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, three stage nitrous. New dyno numbers soon! Old numbers 448/842.

140 lbft is getting pretty close to distortion on the standard ARP's.

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06 2500 mega cab 4x4, AT, 3.73's. The wife says I cant touch this one for at least two years. HAHAHA. That lasted one whole month. DiPricol EGT, Boost, and FP installed, straight piped, Smarty, Tank vent mod Leveled with 35x12.5x17 BFG MT's on black H2 rims.

97=SOLD

Gone buy not forgotten. 01.5 2500 HO QC SB 4x4 500+ RWHP

I like living on the edge....most companies will give you an 80% rating of what 80% of the bolts (or studs) are capable of.

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1989 D250 2wd New Era 6x16's, 3200 spring, Goerend converter, J&H Performance 727 trans, 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, three stage nitrous. New dyno numbers soon! Old numbers 448/842.

Just got my arp studs in, they say 75% of yield at 125 lb/ft. If my math is right, that puts the yield point at 167 lb/ft. I think I'm just going to stick with 125.

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1990 W250 rebuilt getrag 5spd, pump tweaked, 3200 spring, little timing bump, ground pin, no washer, piston LP, BHAF, 4" exhaust to 5" turnout stack, tach, pyro, boost, fuel psi gauges, 6" skyjacker lift, 315/75/16 pro comp mt's, rebuilt rear with 4.10's and a powr-lok, home made traction bars, GDS stage II, w/g 12cm housing w/ manual boost controller, ps ic.

All that for 306 hp, 649 torque

Those that have tested the ARP's have found that distortion starts around 150lbft.

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06 2500 mega cab 4x4, AT, 3.73's. The wife says I cant touch this one for at least two years. HAHAHA. That lasted one whole month. DiPricol EGT, Boost, and FP installed, straight piped, Smarty, Tank vent mod Leveled with 35x12.5x17 BFG MT's on black H2 rims.

97=SOLD

Gone buy not forgotten. 01.5 2500 HO QC SB 4x4 500+ RWHP

what about the A1 studs? anyone run those?

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91.0 W350 SRW LE. 727 3.54s, Dana 80 LSD, 265/75R16E, 366 spring, THIN pin, pump maxed, what starwheel? timing bumped, BHAF, 3.5" straight pipe, rear bagged, Isspro gauges, Hella H4s, Borgeson shaft....

96' Saturn SL1 base w/ AT AC CC

That's whats in mine for some years now. Now problems at 125ftlbs and 70psi.

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Bill Gilbert
89 W250 KTA 14mm VE Scheid 6x16's 1st gen IC 62/71 S400 twins Aeromotive A1000 fuel system 556hp

I have A1's at 130ftlbs and no problems so far. over 60psi of boost from twins.

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'97 2500 single stack,4k gsk, 19* timing, rack plug, DDP4's, big EZ custom TWINS, O-ring, studs, ported, valve job, 60lb springs, and a 1 jigawatt flux capacitor.
KDP killed 12-30-07 (#65 for Dave)

99 civic "Murdered out"
'02 Yamaha R1

MARYLAND DTR CHAPTER #33

To see a wrong and not expose it, is to become a silent partner to its constituance.

I can get a set for cheap, new ones. Are you guys fireringed too?

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91.0 W350 SRW LE. 727 3.54s, Dana 80 LSD, 265/75R16E, 366 spring, THIN pin, pump maxed, what starwheel? timing bumped, BHAF, 3.5" straight pipe, rear bagged, Isspro gauges, Hella H4s, Borgeson shaft....

96' Saturn SL1 base w/ AT AC CC