It has me stumped, again...

What in the is going on with this thing? I thought I fixed it a while back, I had another thread going a few months back that sure helped with getting me straightened out. It seems like my truck is just not flowing water correctly. I was pulling up a pretty steep grade hauling about 12k on a gooseneck. Egt's sat around 1200-1300 as I backed out of it to keep them from getting out of control. Meanwhile while monitoring EGT's, the engine temp peaked out into the red light turned on. Ambient temp was around 95 degrees, but gimme a break, a big block chevy can outdo this thing the way it is acting.
-I run it on climbs w/ overdrive off.
-Checked water level of course. Head gasket is okay.
-New radiator, 180* thermostat from cummins, new water pump.
-No boost leaks( I don't think I checked this a while back, runs 30 psi WG capped).
-Installed royal purple coolant additive w/ fresh anti-freeze
-Defueled pump by sliding the plate some about 3/16'' (I think, been a while).
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Do I need to mess with the starwheel?
Slide the plate some more?(It bellows some smoke pretty good still at WOT)
Get another turbo? ( I know this will help, any suggestions?)

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1998 2500 Cummins Quad Cab 4X4, 12 Valve, KDP fixed, AFE Stage II, 1998 dodge Laramie SLT 3.55 gears, BD Automatic 3 disk lockup,Triple pillar guages-Auto Meter Pro Comp ultra lite Trans, Pyro, Boost, HX35, Bosch 7100 turned up w/#8 BD plate, 100hp bosch injectors, 3,000 rpm spring kit, PSC Steering, 05' wheels, 33''x12.50''-17 Big O X/T's, Leveling Kit, 5'' Exhaust, Gooseneck

with your plate and injectors, that HX is probably way to small, and with the wastegate capped, you are really choking that thing out, especially at higher rpm's, and a steady 1300 on the egt's will heat the coolant up rather fast, i would start with a better turbo, or maby hook your wastgate back up and get a boost elbow...

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98 12v 5spd,ddp 90's,twins 62/68/13 over 75mm s400,stage2 water/meth,16.5* timing,4gsk,"custom" plate & AFC,fass fuel,2095 plug,60# springs,afe stg.2, 5" turbo back,John Deere DV's(originally v10, converted w/94 doner) pensacola injectors in the trash can.

75 power wagon, 1st. gen, getrag, 3.2gsk,DDP 80's, twin turbos, stg.2 water/meth,custom intercooler and 3in piping,5" turbo back in to twin auzzie cuts,tweaked pump,arp studs,12in lift, rear triangulated 4 link w/big rig air bags

The temp guage is accurate too. Any suggestions?

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1998 2500 Cummins Quad Cab 4X4, 12 Valve, KDP fixed, AFE Stage II, 1998 dodge Laramie SLT 3.55 gears, BD Automatic 3 disk lockup,Triple pillar guages-Auto Meter Pro Comp ultra lite Trans, Pyro, Boost, HX35, Bosch 7100 turned up w/#8 BD plate, 100hp bosch injectors, 3,000 rpm spring kit, PSC Steering, 05' wheels, 33''x12.50''-17 Big O X/T's, Leveling Kit, 5'' Exhaust, Gooseneck

Okay, I was looking into maybe an s300. Is this a good upgrade for my mods? Eventually I would like to get more out of it like any other breathing person on this site, but first I want to fix the problem at hand. If its my turbo thats "choking" it out, I will yank it off and take the next step up.

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1998 2500 Cummins Quad Cab 4X4, 12 Valve, KDP fixed, AFE Stage II, 1998 dodge Laramie SLT 3.55 gears, BD Automatic 3 disk lockup,Triple pillar guages-Auto Meter Pro Comp ultra lite Trans, Pyro, Boost, HX35, Bosch 7100 turned up w/#8 BD plate, 100hp bosch injectors, 3,000 rpm spring kit, PSC Steering, 05' wheels, 33''x12.50''-17 Big O X/T's, Leveling Kit, 5'' Exhaust, Gooseneck

s300's are great but there are A LOT of different options for them, i would go with a 62mm compressor, and a 13 or 14 cm exhaust housing, and there are a lot of options for exhaust wheels, my favorite exh, is 68mm wheel and 13cm housing.

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98 12v 5spd,ddp 90's,twins 62/68/13 over 75mm s400,stage2 water/meth,16.5* timing,4gsk,"custom" plate & AFC,fass fuel,2095 plug,60# springs,afe stg.2, 5" turbo back,John Deere DV's(originally v10, converted w/94 doner) pensacola injectors in the trash can.

75 power wagon, 1st. gen, getrag, 3.2gsk,DDP 80's, twin turbos, stg.2 water/meth,custom intercooler and 3in piping,5" turbo back in to twin auzzie cuts,tweaked pump,arp studs,12in lift, rear triangulated 4 link w/big rig air bags

Okay, cool. I have been researching on and off at these and agree with the 62mm compressor for what I use it for. Whats your reason for the 68/13? What about wastegate? and how much boost does it pull?

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1998 2500 Cummins Quad Cab 4X4, 12 Valve, KDP fixed, AFE Stage II, 1998 dodge Laramie SLT 3.55 gears, BD Automatic 3 disk lockup,Triple pillar guages-Auto Meter Pro Comp ultra lite Trans, Pyro, Boost, HX35, Bosch 7100 turned up w/#8 BD plate, 100hp bosch injectors, 3,000 rpm spring kit, PSC Steering, 05' wheels, 33''x12.50''-17 Big O X/T's, Leveling Kit, 5'' Exhaust, Gooseneck

the spool up, i have tried a lot of different turbos, basicly the bigger the wheel and/or housing = slower spool, but more flow up top. i just saw your running an auto, so a 14cm would probably well for you also, just the initial spool may suffer a little, over all pressure will depend of fuel setup, but for a stock head, it should be set up for 40-45psi, if you have enough fuel to get it there.

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98 12v 5spd,ddp 90's,twins 62/68/13 over 75mm s400,stage2 water/meth,16.5* timing,4gsk,"custom" plate & AFC,fass fuel,2095 plug,60# springs,afe stg.2, 5" turbo back,John Deere DV's(originally v10, converted w/94 doner) pensacola injectors in the trash can.

75 power wagon, 1st. gen, getrag, 3.2gsk,DDP 80's, twin turbos, stg.2 water/meth,custom intercooler and 3in piping,5" turbo back in to twin auzzie cuts,tweaked pump,arp studs,12in lift, rear triangulated 4 link w/big rig air bags

Alright, so whats a decent price to look for on one of these? I have seen some for like $950 new but with smaller wheels. I will need a different down pipe too. Whats a decent price for that? I am just asking if you know off hand.

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1998 2500 Cummins Quad Cab 4X4, 12 Valve, KDP fixed, AFE Stage II, 1998 dodge Laramie SLT 3.55 gears, BD Automatic 3 disk lockup,Triple pillar guages-Auto Meter Pro Comp ultra lite Trans, Pyro, Boost, HX35, Bosch 7100 turned up w/#8 BD plate, 100hp bosch injectors, 3,000 rpm spring kit, PSC Steering, 05' wheels, 33''x12.50''-17 Big O X/T's, Leveling Kit, 5'' Exhaust, Gooseneck

i wouldn't pay anything over $1200 w/downpipe, but you should be able to find them cheaper than that

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98 12v 5spd,ddp 90's,twins 62/68/13 over 75mm s400,stage2 water/meth,16.5* timing,4gsk,"custom" plate & AFC,fass fuel,2095 plug,60# springs,afe stg.2, 5" turbo back,John Deere DV's(originally v10, converted w/94 doner) pensacola injectors in the trash can.

75 power wagon, 1st. gen, getrag, 3.2gsk,DDP 80's, twin turbos, stg.2 water/meth,custom intercooler and 3in piping,5" turbo back in to twin auzzie cuts,tweaked pump,arp studs,12in lift, rear triangulated 4 link w/big rig air bags

First thing, I was having that overheating problem and I was leaking coolant from the head gasket between #5 and 6 cylinder on the driver side, installed water pump and no help, then I found the leak. ( dont think thats ur problem, but it happend to me ). I had my 215 pump with 215 sticks, a K&N element ( air filter ) stock gov springs and a # 10 plate when I swapped from my hx35 to a 64/71/14 and I was very happy I skipped the s300 and that I didnt go with the 12cm housing. It was never to big, and since I have added the 90 horse injectors ( 370's made for our truck pretty much ) a 4k and no plate at all it is pretty much tapped out already. gated at 50 lbs and will hit it at 85mph if I mash the pedal. runs 45lbs before torque conv. lock up. Scheid diesel performance can give you alot of info and they are usually willing to talk for a bit. I had been driving with 45 lbs on my hx-35 for 3,000 miles. truck had 165,000, they say that is a typical spot for the gasket to pretty much rot out( not sure how true that is ). I would go straight to a 66/14 if I could do it again. good luck

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98 3500 4X4 QC
2 inch leveling, Bilistein Shocks, 215 pump, 90 HP injectors, AFE Filter W/ Pre-Filter, Gutted AFC, No Plate, 60 lb springs, 4K GSK, Super B Special ( 64/14/72 ), 4 inch 304 stainless exhaust ( Single Stack ), Pyro and Boost Pillar, Tranny:Suncoast TC and VB, Trans-Go Shift Kit, Race cluthches, drop pan ( 4 extra Quarts of amsoil ), steel pistons, heavy springs to shift later ( courtesy Tim Moye Transmission Lutz, Florida ) , Ran 440 HP and 1150 LBS torque. 200,000 miles

Thanks guys, it seems like there is a lot of variations with wheels and prices.
Between the 12 13 &14 I am probably gonna do the 14 w/ the auto.
But would a 64 be too big/laggy? The 64/71/14 is what model?(Stupid Question I am sure but I am pretty new to the turbo ball game)

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1998 2500 Cummins Quad Cab 4X4, 12 Valve, KDP fixed, AFE Stage II, 1998 dodge Laramie SLT 3.55 gears, BD Automatic 3 disk lockup,Triple pillar guages-Auto Meter Pro Comp ultra lite Trans, Pyro, Boost, HX35, Bosch 7100 turned up w/#8 BD plate, 100hp bosch injectors, 3,000 rpm spring kit, PSC Steering, 05' wheels, 33''x12.50''-17 Big O X/T's, Leveling Kit, 5'' Exhaust, Gooseneck

Mine is a Super B special ( special is the important part cuz there is a normal super B ) its made by BD and I chose it because it had a 1 year warranty. Scheid diesel makes a lightning that is that same size supposed to be a really good charger. im sure there are other choices also. I was happy when I went to the 64 I debated a 62 also. And when I changed I pushin bout the same fuel as you.

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98 3500 4X4 QC
2 inch leveling, Bilistein Shocks, 215 pump, 90 HP injectors, AFE Filter W/ Pre-Filter, Gutted AFC, No Plate, 60 lb springs, 4K GSK, Super B Special ( 64/14/72 ), 4 inch 304 stainless exhaust ( Single Stack ), Pyro and Boost Pillar, Tranny:Suncoast TC and VB, Trans-Go Shift Kit, Race cluthches, drop pan ( 4 extra Quarts of amsoil ), steel pistons, heavy springs to shift later ( courtesy Tim Moye Transmission Lutz, Florida ) , Ran 440 HP and 1150 LBS torque. 200,000 miles

I think you have two issues. One is coolant overheating and the other is high EGTs. Before I cleaned my radiator fins (removed it completely from the truck) I could easily overheat the engine climbing the grapevine with a heavy trailer in tow and my egts would never exceed 900. 3rd gear, 2200 rpm, 35 mph. After a good cleaning I run the same rpms, gear, etc and get the same egts, but rarely exceed 200 degrees water temp. I'm in Canada right now and a few days ago I pulled my 21,000 lb gross truck and RV up a 10% grade with no problem. Ambiant temp was 82. When you replaced the radiator did you clean the A/C and intercooler completely to get good air flow? Are you positive the tq converter is staying locked?

Disregard all if you are trying to set some sort of land speed record while climbing hills.

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97 3500, 5-speed, lightly bombed 700+k miles
(GETTING CLOSE TO 3/4 MILLION MILES!!)

Where in Canada are you right now?

Clean the rad, and flush the system. You might not be leaking, but plugged off flow won't do you any good.

As for turbo's, if you are towing, I'd stay away from the 66. I have it on my 24v, it doesn't start to get moving until about 2k rpm. My 62 on the 12v is more around 1700 rpm. The bigger turbo will run hotter in cruising and mid throttle application, but stay cooler on WOT blasts. Unless you are towing at WOT, the 66 won't be your friend.

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'98 3500 4x2 Quad Cab, 24v, 5 spd, 3.55s, 100 Plate, 4k GSK, 15.5° Timing, DDP Comp Injectors, Silver Bullet, FASS, BD Short Shifter, SBC DD, Fluidampr
Alcoa Magnums, GM Brake Cylinders, HID Headlights, DSS

'98 2500 4x4 Reg Cab, 12v, 5 spd, 3.55s, 0 plate, 3k GSK, 15° Timing, SBC DD, F1 370's, SPS62, Fluidampr
Alcoa H2's, Lorado Tonneau Cover, HID Headlights, Espar D5

'94 12v, '00 24v, '06 G56/NV271, GT3782/GT4202R twins and more in the Car Hold!

I don' want a 66, I am looking into a 64/??/14

As stated above, I have a new radiator, with cummins 180* Thermostat, flushed system, new water pump, not trying to set any land speed record, just want to pull a good load at a normal pace. Also cleaned the intercooler a/c condensor, etc, on front end to assist cooling. Did this with water and air without bending fins from inside the engine bay outwards. Water system should not be my problem...

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1998 2500 Cummins Quad Cab 4X4, 12 Valve, KDP fixed, AFE Stage II, 1998 dodge Laramie SLT 3.55 gears, BD Automatic 3 disk lockup,Triple pillar guages-Auto Meter Pro Comp ultra lite Trans, Pyro, Boost, HX35, Bosch 7100 turned up w/#8 BD plate, 100hp bosch injectors, 3,000 rpm spring kit, PSC Steering, 05' wheels, 33''x12.50''-17 Big O X/T's, Leveling Kit, 5'' Exhaust, Gooseneck