Making Of The Willy Mammoth

[79coyotefrg]

he must mean 3208 CAT.

  actually compareable to a 3408, 

look it up  Cummins v903   it was/is a  V8 cummins, they put them in big rigs  during the 1970's  stock  was  around 700hp

[Gibli]

Hi Mark,     
sometime back I asked you about figuring how to install an external engine oil cooler in a 1KZ-TE, I have another question requiring your "expert opinion", I am re-building my CJ-7 and planning to install Toyota differentials and can opt for Limited slip for both front and rear or the regular ones. The front diff is with electronic locking hubs. What are your views on LSD's ?
I'm sure this would not hinder the "home project" in any way where you seem to be busy these days.   
 

[Willy Mammoth]

Hi Mark,    
sometime back I asked you about figuring how to install an external engine oil cooler in a 1KZ-TE, I have another question requiring your "expert opinion", I am re-building my CJ-7 and planning to install Toyota differentials and can opt for Limited slip for both front and rear or the regular ones. The front diff is with electronic locking hubs. What are your views on LSD's ?
I'm sure this would not hinder the "home project" in any way where you seem to be busy these days.  
 

Skip the limited slip, if the one's you speak of have clutches. They work ok for street use in cars, but not for off road with larger tires and in the instance of one wheel being in the air. The electric lockers are ok if they are easy to find, but I like my ARB's, they always lock in and out with ease.

Never heard of electric hubs 

[Willy Mammoth]

Update, after running the crap out of this thing up the hills in WV and wearing another 1/4 of the tread off the tires on the winding roads in Gilbert, it never went above 185*. You could feel the top tank was hot, but the bottom was no more than 80* - 90*, even at 70 MPH with the exhaust temp reaching 1500*.

So I am sure the new radiator will do the job.

[79coyotefrg]

[red]

1500 degrees from the exhaust? that little diesel gets toasty!!

[Willy Mammoth]

1500 degrees from the exhaust? that little diesel gets toasty!!

Yea, that is pushung it I know, but that just proves the rad is working if it can keep up. I don't like to run it more than 1400* for long before easing off the throttle a bit. Don't want to see the pistons come out the exhaust. 

Oyha, and it does fly, I love the way it gets up to speed out of the turns without downshifting. This would be a fun engine in a street racer with about 30 psi of boost or more.  214 ft lbs of torque at 1500 rpm 12 psi stock. Can you amagine at 30 psi? I bet you could get close to 300 ft lbs.   

[79coyotefrg]

it would suck you into the seat thats for sure

[tom w.]

Alright... I know this is in the thread somewhere, but where abouts did you pick that motor up?

[Lady Di]

it would suck you into the seat thats for sure

Would? It DOES suck you into the seat!
It felt great going up around those mountain roads and when Mark would get into straight it was like WOW!

[Lady Di]

Alright... I know this is in the thread somewhere, but where abouts did you pick that motor up?

From an importer in GA.

[tom w.]

I want me one...

[kneedownnate]

Jarco wasn't it? 

[Willy Mammoth]

http://www.jarcoinc.com/

The halfcut inventory page is down right now, but you could contact Michael Hooper about any questions you have.

770-479-4942

Also this board has a lot of helpfull info. http://toyotadiesel.com/forums/index.php?

[red]

to lower those egt's (and even more power if you want) theres a couple of things you could do. intercooler, water/methanol injection, NO2 injection. i dont know how much exhaust temp that motor can take for extended periods of time. i know the cummins 6bt is around 1600F and the chevy/gmc 6.2/6.5 is down around 1100F. running any of those upgrades also allows you to run more boost.

[crawlerdan]

@12 psi i would intercool it Mark, especially considering you are such a good fabricator

my last turbo car ran 8 psi stock, and ran a 14.2 1/4mile

i added an intercooler, and put the boost back to 8, (an intercooler will lower boost  a little)
and was running 14 flat, so i figured the cooler air not only added power, but the whole system was safer now.

i bet an intercooler off a superduty or cummins would sit nice in there, and are cheap, also look at volvo 240 series turbos...huge intercooler, but only 1 inch thick


good luck man

[red]

12psi is not much for newer diesels. the cummins motors can run 35psi before you have any concerns. upgrade the head studs, head gasket, and your good for a little over 50psi. now the 6.2/6.5 is another story, but its also running 21:1 compression compared to 18:1 in the duramax, powerstroke, and cummins.

[79coyotefrg]

[Willy Mammoth]

[Gittinit]

 

[KDXSR5]

SO after a few months of on and a lot of off reading, I have read the entire build. This rig is crazy. Your skills are unsurpassed by anyone I have met. Plus the Mrs. has sweet "keeping us up to date" skills. Your neighbor is kind of entertaining as well. He is very curious. The whole idea of a small diesel is awesome. All the work to get this rig together would have put me in the nut house. This rig is amazing!

Off topic: I had to change out a starter the other day on a Nissan pathfinder that had 1/2"-3/4" of oil, grease, and dirt all over the engine, engine bay and ifs stuff. After 3 (yes 3) hours of powerwashing, I tried to change the starter. It took me another 3 hours to pull out the stater and put a new one in. Have you changed the starter on your pathfinder yet? I am assuming you have, because, well, you have done just about everything, and I have noticed that you used to do a lot of Nissan stuff. Any advice on how to change it out faster? I ended up having to remove/unbolt a bunch of stuff. I am probably going to have to change out more of these in my lifetime, so any advice would be appreciated! Thanks, and you are the man!

[Doof]

how are your tire buildings coming along?

[Rocksurfer]

SO after a few months of on and a lot of off reading, I have read the entire build. This rig is crazy. Your skills are unsurpassed by anyone I have met. Plus the Mrs. has sweet "keeping us up to date" skills. Your neighbor is kind of entertaining as well. He is very curious. The whole idea of a small diesel is awesome. All the work to get this rig together would have put me in the nut house. This rig is amazing!

It was a lot easier to follow along from the beginning, I'd probably be even more impressed with the evolution of the Mammoth if I were to just read the whole thing at once, hell I have forgot half the stuff he's done since he 1 up's himself all the time. Plus I know what he's worked at in his past so stuff like stretching the Mammoth and most of the mechanical stuff is just that. Now all the inventive things and the speed things get done I wonder how Santa works without all his elves since Mark had to steal some to work the magic he does and how quickly he gets it done. It is fun to watch the revese evolution of the Mammoth, I always thought that evolution involved becoming more streamlined as things went along but the Mammoth just gets bigger and bigger. It's even more impressive to wheel with it in person and to actually get to wheel in it, it is one mean machine.

[79coyotefrg]

[unclejpl4x4]

so is mark hibernating  i know it's cold in FL right now.

[CTENG in KS]

You people don't pay attention well.

The Mammoths are taking a break from making the Mammoth to focus on some house repairs, etc they put off to do MCR this year.

The Mammoth will be returned to when they have completed the house repairs and decided on the future of their house.

Please continue to have patience, and, in the mean time, build a truck yourself and post pictures here.

Thank you, we now return you to your regularly scheduled program.

[unclejpl4x4]

You people don't pay attention well.

The Mammoths are taking a break from making the Mammoth to focus on some house repairs, etc they put off to do MCR this year.

The Mammoth will be returned to when they have completed the house repairs and decided on the future of their house.

Please continue to have patience, and, in the mean time, build a truck yourself and post pictures here.

Thank you, we now return you to your regularly scheduled program.

i have mental issues ( if u havent fingerd that out yet) i can only read words with pics

[Rocksurfer]

i have mental issues ( if u havent fingerd that out yet) i can only read words with pics

Does this help unc


 

[unclejpl4x4]

ok got it   thx RS

[93tonkatoy]