Daniel McCurdy
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electric fans just can't move enough air to cool the engine towing heavy
Modify 7.3 idi vs cummins swap
- Thread starter Daniel McCurdy
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If you plan to keep the na rods, I would do a 110 or 130 pump and head studs, that will get you in the low to mid range 300s and in the upper 700 ft lbs for torque reliably. If your hypermax kit has no leaks on any of the hotside piping I would just replace the hypermax turbo with one of my drop in 3582s, a huge jump in airflow from the stock t04b frame hypermax, I can put this into a divided inlet/v band outlet to basically match the hypermax footprint, I have the parts to do this in stock.
If you plan on upgrading the rods, you can pretty much run as much fuel as you want power.
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If you plan on upgrading the rods, you can pretty much run as much fuel as you want power.
Daniel McCurdy
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I would be using the Power stroke rods. How does the 3582 turbo compare to a sxe 362 or 364 would either of those turbo s work with the hypermax turbo kit
Daniel McCurdy
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This is the turbo kit that's currently on. It looks like an older hypermax kit don't know if any other turbo will work with this kit
My vote is always for a direct-injected, mechanical, inline turbodiesel. Navistar DT series and the Ford New-Holland fit the bill; there's the larger 8.3 Cummins. Perkins, Isuzu, and Mitsubishi made them too. Cummins (6BT) just happens to be the easy route, and the Bosch pump makes it easy to turn up the power.
(not long ago, LS1 swapping was brand new, and every hotrodder before that swapped a 'chevy tree-fitty' into their ride)
Cat C7 is out for me. IME, Cat (Finning) is a difficult OEM to deal with. Might be okay if you work in a Cat-dominant shop, and they have access to everything already. Otherwise, if HEUI is your game, stay with Navistar (PSD or DTE).
(not long ago, LS1 swapping was brand new, and every hotrodder before that swapped a 'chevy tree-fitty' into their ride)
Cat C7 is out for me. IME, Cat (Finning) is a difficult OEM to deal with. Might be okay if you work in a Cat-dominant shop, and they have access to everything already. Otherwise, if HEUI is your game, stay with Navistar (PSD or DTE).
Here’s the 3582, T04Z, 362 and 364 compressor maps, any of them can be made to fit the borg Warner’s are pretty challenging even s200 frames I have put on hypermax up pipes required some spacing out to fit under the firewall.
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Daniel McCurdy
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What kind of power can the 3582 and to4z support. Truck would have to be able to tow heavy so lag is a concern. Would the 3582 bolt up to the kit I currently have if not what would be required to make it work
not sure what you are towing and how heavy, but it seems when you really work a tuned up idi they get hot and you always gotta let off the throttle. at least in my experience.
im not a die hard cummins guy by any means but its the easiest diesel to get and make good power that you can use.
i got a ford/new holland 7.8 going in my f350 some day so i can tow what i tow with the dodge, at highway speeds up hill lol.
my 98 durge and 45' toy hauler. camper is a about 14K empty.
im not a die hard cummins guy by any means but its the easiest diesel to get and make good power that you can use.
i got a ford/new holland 7.8 going in my f350 some day so i can tow what i tow with the dodge, at highway speeds up hill lol.
my 98 durge and 45' toy hauler. camper is a about 14K empty.
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400hp or below I typically recommend the 3582, and the T04Z does anything above that really well, either turbo will be more responsive than the p trim hypermax you already have.
with a v banded turbine housing either of those turbos will bolt in, you’ll have to convert the downpipe to a v band connection and run an intake to fit the 4” inlet but the oil plumbing is the same for the oil drain flange and oil feed setup as your hypermax turbo.
You should give a pump with a proper fuel curve a shot before swapping your idi out, the last bull moose I ran made ~100cc around 1500 engine rpms but only 70cc at hp peak, so I could see why you would have power/heat issues with all the fuel being at a lower rpm.
I especially like your westcoast mirrors and 'flaps-only' haul chassis.
thanks man! working on making a flat bed so i can actually use it lol.
Daniel McCurdy
Full Access Member
I will probably just put a 130 pump and a good turbo on my idi and if I find a good deal on a cummins engine I'll just do the swap. Eventually I'll get a 08-10 Ford and put a dt466 in it they fit know problem with a mechanical fan in the newer trucks
Daniel McCurdy
Full Access Member
Is a cam worth it for an idi like a r&d stage 1 cam. Same with the injectors will stock ones work just fine at 325-350hp. Should the piston be shaved to lower compression or is the stock compression find for this hp range.
IDIBRONCO
IDIBRONCO
The stock injectors will work at these power levels. Generally, a good turbo will be way more beneficial than a cam change. As for the shaved pistons, it's kind of up to you. If you are going to tear the engine completely apart, then it wouldn't hurt to have .010" removed, but it isn't a have to do thing as long as your valve clearances are within spec. If you're just going to do add ons, then there is no way that you could have the pistons shaved. If you go as far as to remove the pistons for shaving, then it would be best to have the block bored and start fresh with new pistons and bores. Is it required? No, but since you have the engine this far apart, you may as well get the longest life possible out of it. Of course, if you are going to run a bigger cam, then the pistons may need to be milled or you could buy decompressed pistons. All decomp pistons are is pistons that have the wrist pin bore made closer to the top of the piston which makes the piston sit farther down from the head.
