Well my local performance shop has a spare Holset HX35W turbo charger that they are allowing me to barrow to do the prototype manifold. How is this a good thing? Well the HX35W is a VERY common turbo, that can be found used for under $300. They also have rebuild kits to make them good as new for about $75. They come on nearly all Dodge 5.9L desiels so they can be sourced almost anywhere. They also incorportate an adjustable internal wastegate so boost adjustments can be made easily, and elimintates the need for an external WG. The best part is that these turbos can handle as much as 500hp, yet on the 4.0L will spool like crazy! They have several different turbine housing sizes that will allow you to change the spool to how you want.
I actually know a couple people who picked them up for under 200, so you can find them for cheap. A lot of the cummins guys will end up junking the turbos when they swap it out for an HX40 or something bigger.
The price of the mani as it stands right now, will be $600 shipped.
not saying the hx35 isnt a great turbo but try the hy35 its the same turbo but the wastegate is setup different and its got a 9cm housing instead of a 12 so it should spool really good. that is what i was planning on running on my setup.
but everyone said it wouldnt spool till like 5000 rpm so if they are right it will be a lag pig.
if you and i are right it should be a smokin turbo that lights off at about 1800 and pushes hard all the way to 6,000 and very reliable.
considering that i run 40+ pounds on mine in my diesel the 6lbs or 10lbs that we will be running should be nothing.
the cummins runs 18lbs through that turbo stock
so bryson what are you gonna do for spark and fuel management?
im super stoked about this turbo idea cause the manche is a total sleeper but i gotta find a way to do it super inexpensive.
i have some turbos to swap into my cummins so i can pull myhx35 out for the manche but i have been looking at fuel management prices and i think that is where ill have the hang up.
not saying the hx35 isnt a great turbo but try the hy35 its the same turbo but the wastegate is setup different and its got a 9cm housing instead of a 12 so it should spool really good. that is what i was planning on running on my setup.
but everyone said it wouldnt spool till like 5000 rpm so if they are right it will be a lag pig.
if you and i are right it should be a smokin turbo that lights off at about 1800 and pushes hard all the way to 6,000 and very reliable.
considering that i run 40+ pounds on mine in my diesel the 6lbs or 10lbs that we will be running should be nothing.
the cummins runs 18lbs through that turbo stock
so bryson what are you gonna do for spark and fuel management?
im super stoked about this turbo idea cause the manche is a total sleeper but i gotta find a way to do it super inexpensive.
i have some turbos to swap into my cummins so i can pull myhx35 out for the manche but i have been looking at fuel management prices and i think that is where ill have the hang up.
Yeah the Hy35 is of course another great option. Although I don't think it's nearly as readily available as the HX35. Anyone who said that it won't spool till 5K doesn't know what they are talking about. An HX35 with the stock 12cm housing will hit full boost around 4k on a 2.0L honda. Keep in mind that the most important factor in spooling a turbo is engine displacement. With this in mind a 4.0L should spool the same turbo around 2500 rpm, and hit full boost somewhere around 3000. Pretty much perfect in my mind. I will actually be planning on running about 1bar or 14psi of boost . these turbos were designed to be ran at pressure levels of at least 2:1, and I definetly want to run it in it's sweet spot. If tuned conservatively, it will be just as reliable as stock.
As for engine management, I mentioned in another thread that I am working with the Unichip company on making a plug n play piggy back system that will allow complete tuneability of fuel and ignition maps. All you have to do is swap in larger fuel injectors, and a 2.5bar map sensor and head off to the dyno. Although this system most likely won't be cheap, it will be reliable.
If you want to do it cheap, you can use an adjustable FMU which increases fuel pressure in proportion to boost. I don't reccomend these really because of the inherent danger of high fuel pressures, combined with hacking into the stock rubber fuel lines. Although a lot of people have used this method with great success.
hey byrs. what do you think of the fuel system that comes with the hesco blower? know much about it? will it actually be sufficient with the blower or should i start looking into better fuel systems for forced induction?
Honestly, I havn't looked into their kit much so I can't say for sure. However, it appears to be the same unit that 505 performance sells with their turbo kits. If this is true, it's just an adjustable FMU.
Like I said, I will never use an FMU because of the associated risks. Heres a good example why I won't:
I can't give you any realistic figures, but I can assure you one thing.
The power output will be more than any supercharger setup out there on the market. period
The amount of power a user can go for, is up to their fuel system limits, the engines physical strength at those HP levels, and their personal desire to take on that risk. :thumbsup:
Again, it's pretty much up to how well you can tune it. The boost level doesn't matter as long as you can hit a 12:1 air fuel ratio, and retard timing enough to suppress detionation.
I will be running 14psi from this turbo, which should be about a 150hp increase from stock.
If the unichip will allow it, I will be running 450cc injectors from a 1st gen mitsubishi eclipse, which will provide for more than enough fuel flow.
Of course. I will offer a two year warrenty for the origional buyer of the manifold. If it cracks for whatever reason, I will fix it or replace it at my discretion.
350 hp is a doable figure with a built stroker. There would be less reliability and drivability issues too
Yeah, it will be interesting to see how the power output compares. I also have to mention that a motor is only as reliable as you build it. If you halfass a stroker, I'm sure it won't be reliable. Same goes for turboing or SC's. Although I'm willing to bet that the turbo will blow the stroker and SC systems out of the water.
Yeah, it will be interesting to see how the power output compares. I also have to mention that a motor is only as reliable as you build it. If you halfass a stroker, I'm sure it won't be reliable. Same goes for turboing or SC's. Although I'm willing to bet that the turbo will blow the stroker and SC systems out of the water.
If someone were to build up a 4.6L stroker with a turbo, then the driveline definately needs to be beefed up, no? I've heard there is a stronger version of the NP242 (with full time). I would love to build my cherokee up with a turbo stroker eventually. With all that power, I'd definately NOT want to loose full time 4wd (AWD as i like to call it).
Would the D30 or 8.25 (29 spline, aftermarket upgrades) be able to handle that amount of power?
If I were that serious in going after those hp and 1/4 mile goals, I would ditch the 4wd and slap in a Ford 9" rear. Unless I had assloads of $ and could afford to find the limits of the rear.
As for the tranny, that is a hard one. I don't know the stock limits of it (wouldn't mind finding them), but you will most likely have to use a beefier unit.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Jeep Enthusiast Forums
18.5M posts
726.8K members
Since 2000
A forum community dedicated to all jeep owners and enthusiasts. Come join the discussion about performance, engine swaps, modifications, classifieds, troubleshooting, maintenance, and more!