dt466 More POWER
 

Hi, I am new to this forum and just bought a s1900 tandem, and i would appreciate any help. Can you increase power and torque on 1985 dt466 that is rated at 210 hp, can you get 250 + hp and not burn it up? This motor has no intercooler, is this going to limit the power? What is the difference between a factory 210 and 250 hp motor?
Thanks

If it was me I would go check out a international parts store talk to a guy that can give you all of the specs on that truck. You will get your trucks specs and then any other specs listed for more gains. You would be surprised to see what all that has to be done to get more power. Then if nothing is available, time to start looking into basic little stuff and self engineering some of the parts.
Just keep it leagal and keep it safe.

You can adjust the fuel screw, and timing, and get close to 250hp/650tq. The instructions are on youtube, and in my sig.

Thanks. is there any difference between a 210 and 250 motor? injectors, pump etc?
Thanks.

It's the pump. The 250 and 270hp used a little bigger parts in the pump, but the same, tiny 10mm plungers. You can make almost 600hp on stock injectors, it's the pump that does the magik. Timing was also a little higher. Shoot for around 19*, if your stock timing was originally set at 13-15*.

Could this create high exhaust temps or are these motors not prone to that with this pump? Thanks. BTW fantastic video

It will get too hot if you max out the fuel screw and drive foot to the floor all the time while loaded to 30k + pounds. If you upgrade to a Holset HX40, or a Garrett from a newer 466 or 466E, you will keep plenty cool. Not having an intercooler will make it pretty hard to keep cool. If you have a pyro, adjust the screw, and see what heat it makes. Then, you'll know how critical it's going to be to add an intercooler. A wrecking yard for big rigs should have all you need to change over.

Thanks, there is no room for an intercooler to sit in front of the rad. Do I use a side by side rad intercooler, I heard they can't cool the motor enough.

there is a ih schoolbus in the yard near me that has a mechanical 466 and a side by side rad/intercooler. where are you located?

I am located in Ontario Canada....a little far, but thanks.

The side by sides are junk, and dont cool well at all. The front to back intercooler has a different mounting for it and the radiator together. Look for one from a 90-92, they (nearly all) had intercoolers from the factory.

thanks for the info, really really helps....I asked the International dealer guys and they have no idea how to make these motors work better....thanks again. After I pass emissions test next week I will do the changes. When I install the pyro should I do it before the turbo or after, what are the max temps in each location?

The IH dealer doesnt like to do fueling adjustments, mainly due to liability. Your best accuracy is pre-turbo. There should already be a place to drill & tap about an inch above the turbo mounting flange. Max sustained for pre-turbo is 1300-1350, but you can run to 1500 for a 3-5 sec burst. Post-turbo temps are roughly 1000-1100, depending on how far down the probe is in the pipe.

What is the side by side intercooler? I have an intercooler i took out of a 89 dt466 that I was planning on using for a project. It was the kind that sat right beside the radiator.

The side by side is where they used half the grille opening for the rad, and the other half for the intercooler. Not very efficient at all, unless you're just using the truck as a pickup(no heavy loads).

Hey nevrenufhp, can you give me the part number for the turbos I should upgrade to? Will they fit the manifold or do I have to change that to?
Thanks

The ones I suggested earlier will bolt right up to the manifold, and oil lines too. The fresh air side may need some different size hoses to finish it.
I dont have part nimbers, but applications to look at, and that's what a wrecking yard will go by too.
This also depends on what hp level you're looking at going with.
For the HX40, find one from an 8.3 Cummins, but at the next lower hp rating. If you're after 300hp, try to get one for 250-275hp. Much over 300hp you'd be better off with an HX50, which come on a Cummins M11. Same idea as the HX40 when searching.

The Garrett; look for one from a DT530, since they had the highest ratings. If not, one from a 250hp 466E will still work. You can modify the garretts like you can the Holsets with different size impellers and exhaust housings if need be.

My philosophy is get a big turbo and fuel up to it.

the dt530e turbo's have a different flange at the manifold ,my 04 does anyway,so be careful when looking ,my dt466 275 hp and my dt530 mech 300hp have the same style turbo never looked at the specs closely,both are 1995 engines

Thanks guys, the wreckers in my area don't have anything as of now, I will keep looking.

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If I go with HX40 or a turbo from a 250 hp will I have more black smoke under load. Or will the larger turbo push more air in to burn up the fuel up? What is the max boost these engines can take as a work engine day after day?
Thanks

It'll have less smoke over all. The reason for the turbo upgrade is the intake side of things. The T04 on your 466 now has an impeller that's around 53mm, and the HX40 is 60mm(some may be 58mm, but still bigger). The truck I drive at work has been holding up quite well at 30 pounds for the past 100k miles of pretty hard use(10k miles a year). I would be comfortable with anything 45 pounds or less with timing at 19*. Of course, it takes quite a bit of fuel to get that kind of booost pressure.:c:

Thanks for the info.... so you think the best deal would be a hx40. I am foot to the floor all the time now. I plan to put a intercooler in first and try to find a turbo....you don't have one?

I would say a '40 is the easiest to find, and would cost the least to buy. Intercooler is a great move. I dont have an HX40 with me right now, but I think I could find one locally. You could also try some of the Dodge forums, but many of those are converted to a small exhaust housing.

Thanks, what exhaust housing do I need? Is it t4? More I look into it the more questions I have.. I saw some on ebay new from China will they work? If you could get a used one what would it cost roughly? Thanks for the help.

They are a T4, and look for a relatively small one. Like a 17-19sq. cm.
The ebay stuff looks like more of a deal than I can get even.

what size of hot and cold side impeller should they be?
Thanks

Shoot for a minimal of 58mm impeller. The exhaust side should be pretty big, but not too critical.
This one:
Holset Hx40 Turbocharger T4 Turbo 19cm Non-wastegated - eBay (item 220699409844 end time Nov-26-10 19:23:38 PST)
or this one are both good examples:
Turbo Charger HOLSET HX40W REMAN TURBO CHARGER $649.00 - eBay (item 200385114402 end time Dec-11-10 11:34:21 PST)
If all else, do the freebie mods, test drive it, and see if it gets too hot.

Thanks again, is it important to have a wastegate? Your knowledge:c: is greatly appreciated.

A W/gate is a great idea, since it's not an OEM specific application. Personally, I would rather have the peace of mind and protection. Sure dont want to overspeed one!


Knowledge? I'm a rookie of rookieness.
:tttt:

You know your stuff....your youtube clips are a good example! I used your site to set the injector pump on my 7.3 idi.
Why should I get a 17-19 cm compressor housing, what is the difference of a smaller or larger one?

The smaller you get, the quicker it'll spoolup. Too small, and it makes a choke point, but a 17 isnt all that small, and would be a first choice. Last I looked em up, a stock T04 has about that same size of exhaust housing. Be prepared to add more fuel to make use of a bigger & better turbo.

So, if set my pump to the pyro and add a intercooler with stock turbo your bets guess how much hp will I gain. If I then add the hx40 what will be the end result?

Being 210 now, I would sayyyy.....240hp, depending on how far out the fuel screw comes. Just adding the HX40 to that combo may add another 10hp. Remember, it takes fuel to make power. Your little 10mm pump can only do so much. As another freebie mod, drilling out the delivery valve holders a little(like 1/64" bigger) will get it a pretty good increase, if you get the '40. I'm waiting on a guy to send me a set so I can get pix of what to do there. He's giving me a set of 12mm plunger& barrell assemblies.:rocking: May even find their way into a work truck's 466.:w2:...the one in my videos with straight pipe.

what will it take to get to the 275hp+ range , or is it possible without sacrificing reliability?

Either drill out the delivery valve holders, or get 12mm plunger & barrells. A decent fuel injection shop can do either. You could go to 450hp and still be plenty reliable. The rest of the drive train wont be too keen on that idea though.

I guess my 40,000 rear ends won't take 450hp but they should take 300hp.
thanks for the info, I am going to see if I can find a hx40 some where.

What about a DT466e? I have a 98 DT466e I was kicking around putting dt530e injectors in because they flow 15cc's more than 466's and also upgrating the turbo. Would an HX40 be an option for the E motors also?

Double check the injectors you have, that they are a split shot. Im pretty sure they all were after sometime in 97. If they are the low power, you'll need a HPOP for a dt530, which will be the higher volume for the injectors you need. Those are classified as a BP injector, and is rated for 330hp in a 466e. Yes, an HX 40 is a great one to use, unless you can score a Garrett off a 530. Alternative to getting all new injectors and oil pump is getting your existing nozzles extrude honed. No compatibility issues. Soon, there will be kustom ECM burning to turn these weak mice into the monsters they can be.

Here is a pic of the HX40 install. Thanks for your help Nevrenufhp.
Your bottle is coming...everytime I get it home it goes empty.:c:

I have a dt466 mechanical engine, but there is a cover of some sort on top where the plug is in your video. Do I take that off? and its under there????

http://i565.photobucket.com/albums/ss99/nevrenufhp/466afcpulledoff.jpghttp://i565.photobucket.com/albums/ss99/nevrenufhp/466plateslide.jpgYou slide the fuel plate forward, not like the ones on the video.
Then, go bigger injectors.
Then, a bigger pump.
Then a bigger turbo and even bigger injectors.