Topic: Making Of The Willy Mammoth

[Willy Mammoth]

Oh, my mistake, when you were saying the runners were not long enough I was thinking across not up and down, but I now have a thought, would it be to hard to have the pump push from the bottom instead of from the top? If you can route the pump to push from the bottom  that would definatly slow the flow.

The problem with that is if you remove the cap it will pump the water out, I think anyway.

If this engine had more power I would not need a high engine speed to get up to speed and the pump would be turning slower. I could drive the pump on an electric motor so the water always flows the same speed.

But first the experiment with the restrictor.

[Rocksurfer]

Some of the Chevy HP vehicles like the Vette use the reverse flow I mentioned, maybe you might look into how they achieved this without pushing the water out of the radiator. I noticed that they don't even have a cap, and the tank serves this purpose. Don't know how they did this though.

[Rocksurfer]

Ok now that I followed my own suggestion I found that the revese flow is not in the radiator but in the engine They pump the water from the bottom of the engine to the top, now the question, is it possible to do a conversion and have yours pump that way?

[Willy Mammoth [OP]]

Something like this maybe?




Or just these?

[Rocksurfer]

Try the restrictors 1st, it won't take long before you have your answer and is cheaper than the electric pump, though the electric pump could make the reverse flow a possibility. I've been reading the advantages of reverse flow and am now impressed with what it does for the engine.

http://www.theherd.com/articles/lt1_cool.html

[gabriul]

ummm..go back to a copper Radiator. They have greater heat disipation than Aluminum.

I don't know why everyone keeps going to Aluminum, the only thing better about them is weight.

THey corrode easier when coolant breaks down, they don't have as great heat disipation and they bend easier.

[skipnrocks]

Hey  I thought I would throw in my two cents   I got a 3 in thick aluminum core radiator  That fits rather snugly in my willys, but it has a 600hp performance rating and has no trouble cooling my 350 in my Willys.  I think it was only like a 150 bucks new.  I dont know how much your other options are running but this worked great for me.   

[Bazzi]

I went to my lockal radiator suplier and they took my old top and bottom and made me a thicker and taller radiator they just asked me how much space I have...........

Has been working great for me.

[Willy Mammoth [OP]]

This one should do the job, it is larger than the one that goes with the engine.

I am almost positive it is do to the speed the engine runs at hwy speeds.

I run it flat out to stay at 55-60 and the water has to be flowing through the radiator so fast it can't give off it's heat before it is pumped back into the engine where it picks up more heat.

There are less runs that are longer which speeds up the flow. If there were more runs that were shorter it would have to slow down and have time to cool down before going back into the engine.

I am going to try some restrictors to see if this helps.

http://www.jegs.com/webapp/wcs/stores/servlet/CategoryDisplay?storeId=10001&catalogId=10002&catalogIdentifier=Jegs_Direct&categoryId=26911&parentCategoryId=10129

[skipnrocks]

http://cgi.ebay.com/ebaymotors/19-X-24-DOUBLE-PASS-ALUMINUM-RACE-RADIATOR-RH_W0QQcmdZViewItemQQcategoryZ33602QQihZ019QQitemZ8072069577QQrdZ1

Alright this is the radiator I bought  I got mine for 179 a year ago shipped.   It works great,  I dont know if the dimentions I got are listed here. But if you need those too i will call home and get the dimensions of mine.   I actually contacted the company dirrectly for the one I got and they let me choose the dimentions I needed.   It fits perfectly between the head lights.  I love it though, seems to be top notch,  I was actuall reallly supprised because I bought it as a budget radiator and it has shown to be exelent.   

If you want pics of how it sits in my jeep, i will call the shop and see what I can get.  My jeep is in the process of gettin an update to the pacemaker.  But it should be back in later next week, with a bit more hp and torque!!    Cant ever get enough.  And other good news my heart surgen has confirmed that the motor has almost no wear and tear on it, and the new seals will make it run puurrrrfect. 

[Rocksurfer]

It's worth the 8 bucks to see before spend big bucks on a radiator.

[skipnrocks]

One more question.  What track width do you have.  Just curous.  Thanks
Willy Nilly.

PS love the jeep,  gets better and better with time.  
  
Oh and what happened to the origional cage that wen all the way to the back rather than diped down after the seats?  

[skipnrocks]

It's worth the 8 bucks to see before spend big bucks on a radiator.

I have never seen those restricters.  What effect will they have at low RPMs.  Will they cause the opposite problem,  too slow at lower rpms?  Or even a bit of overload on your water pump?

[Rocksurfer]

I have never seen those restricters.  What effect will they have at low RPMs.  Will they cause the opposite problem,  too slow at lower rpms?

That's a thought, still worth the 8 bucks to find out.

[Willy Mammoth [OP]]

One more question.  What track width do you have.  Just curous.  Thanks
Willy Nilly.

PS love the jeep,  gets better and better with time.  
  
Oh and what happened to the origional cage that wen all the way to the back rather than diped down after the seats?  

Don't know what the track width is, will have to measure it and get back to you.



The cage is the same except the rear is now removable.

I have never seen those restricters.  What effect will they have at low RPMs.  Will they cause the opposite problem,  too slow at lower rpms?  Or even a bit of overload on your water pump?

Should not be a problem cause it won't need as much cooling at low speed. They are only to regulate the flow at higher speeds.

The pump should not be effected, it will cavitate if the flow stops all together like when the T stat closes.

[Willy Mammoth [OP]]

Quick update. I made a restrictor today with a 5/8" hole and tested it out. It seemed to help keep the temp below 190* at a modeate speed, but seem to get hot at a slower speed. I increased the size to 3/4" and without test driving it seems to stay at 180*. I will drive it tomorrow to see what it does.

I was looking at this radiator and it looks like the front and back rows are split because the inlet and outlet are on the same tank.

I would think the back row would be first and loop back around through the front for more cooling.

I also see it only has 10 sq in more aera.

[79coyotefrg]

  that 

[Rocksurfer]

Quick update. I made a restrictor today with a 5/8" hole and tested it out. It seemed to help keep the temp below 190* at a modeate speed, but seem to get hot at a slower speed. I increased the size to 3/4" and without test driving it seems to stay at 180*. I will drive it tomorrow to see what it does.

I was looking at this radiator and it looks like the front and back rows are split because the inlet and outlet are on the same tank.

I would think the back row would be first and loop back around through the front for more cooling.

I also see it only has 10 sq in more aera.

It looks like there is a seam 1/2 way up, something like that would possible slow it down some as it passes through twice before heading back into the engine.

[RockSlayer]

Cummins engine company had some engine that had a low flow cooling system. They used a 2 pass radiator. But they still had a 12 gallon coolant capacity, 3 inch diameter coolant hose, and a 30" cooling fan.

[Willy Mammoth [OP]]

I think I found a core that will work. It is a 2 row 20"wide x 21 1/2" tall x 2 1/4" thick.

This will give me 430 sq inches over the 336 sq inches I have now.

I think I will make it into a two pass radiator as well for good measure.

[Bazzi]

One thing that I wasnīt happy with after the bigger radiator (donīt know if this will affect you)

I have a turbo and an intercooler on my diesel. I have a pyrometer on that turbo. and before the radiator if My pyrometer showed 700° c the water temp was not affected as soon as the temp went above 700°c it started to show on the water, and if I wasnīt carefull I had to take it easy for 15-20 minutes to let the water Temp go down....... after the bigger radiator my pyrometer can go way hier (so hi it is scary) have seen numbers like 1000°c + (then I turned it off and ditnīt wanna know)
 But I have never had any problems with the water temp.

I donīt know how the blower works but I would like to know is this something you should be thinking about?

[Willy Mammoth [OP]]

One thing that I wasnīt happy with after the bigger radiator (donīt know if this will affect you)

I have a turbo and an intercooler on my diesel. I have a pyrometer on that turbo. and before the radiator if My pyrometer showed 700° c the water temp was not affected as soon as the temp went above 700°c it started to show on the water, and if I wasnīt carefull I had to take it easy for 15-20 minutes to let the water Temp go down....... after the bigger radiator my pyrometer can go way hier (so hi it is scary) have seen numbers like 1000°c + (then I turned it off and ditnīt wanna know)
 But I have never had any problems with the water temp.

I donīt know how the blower works but I would like to know is this something you should be thinking about?

How is your fuel mixture? I here that to ritch of a mixture will cause high exhaust temps. If you are smoking heavily you may be too ritch. I also understand 1300* F is ok, but any higher and you may start having problems.

This thing has had problems getting hot at hwy speeds way before the turbo, but is bad enough now that something has to be done.

[Willy Mammoth [OP]]

It looks like there is a seam 1/2 way up, something like that would possible slow it down some as it passes through twice before heading back into the engine.

I see what you are talking about. I don't agree with doing it that way. It should pass through the back first then through the front. It is a matter of thermal dynamics.

[Bazzi]

my truck cimply doesnīt smoke unless at high altetide (glaciars) when the air is thinner and colder...you can tho see a litle black smoke when I am taking off at low rpm.   

Dit I get this wrong do you have a turbo???

I also installed some air wents on the hood above the turbo

[Willy Mammoth [OP]]

my truck cimply doesnīt smoke unless at high altetide (glaciars) when the air is thinner and colder...you can tho see a litle black smoke when I am taking off at low rpm.   

Dit I get this wrong do you have a turbo???

I also installed some air wents on the hood above the turbo

Yea kinda hard to keep tract ain't it. 

How much boost are you getting? in psi if you don't mind

[Rocksurfer]

I think I found a core that will work. It is a 2 row 20"wide x 21 1/2" tall x 2 1/4" thick.

This will give me 430 sq inches over the 336 sq inches I have now.

I think I will make it into a two pass radiator as well for good measure.

So if you get this that'll make one more auto manufacturer we can add to the list of donors to the Willy Mammoth. I noticed that it goes to a Ford at the bottom of the page there.

[Bazzi]

I am getting somewhere around 7-9 psi  If I remember correctly it goes just above 0.5 bar I think the bar is 14 psi.   (It has been so long since I have driven my truck that I am starting to forget things like that )

[Willy Mammoth [OP]]

So if you get this that'll make one more auto manufacturer we can add to the list of donors to the Willy Mammoth. I noticed that it goes to a Ford at the bottom of the page there.

The old one was for a taurus with a 3.0 v6 and the new one is for an exploder with a 4.0 v6. So no change in make just capacity.

[Willy Mammoth [OP]]

I am getting somewhere around 7-9 psi  If I remember correctly it goes just above 0.5 bar I think the bar is 14 psi.   (It has been so long since I have driven my truck that I am starting to forget things like that )

Are you sure the pyro gauge was right? That isn't a lot of boost for a diesel.

Do you have to drive on the matt like I do to get anywere? If so that is most of the problem with the exhaust temp I'm sure.

I haven't got a gauge yet and I am kind of scared to know what it is going to run.

[Bazzi]

The turbo was set to go for 14 psi but I just donīt get any hier boost than that I have been thinking about turning the oil up and seeing if I get more boost.... but I am having doubts about the pyro....  I was starting to figure those things out when my truck got hit and since then ..........