1542 conversion to a 1543 supersized project

[olympicorange]

On the four cyl Cummins install, have you considered moving the radiator forward to the end of the frame inorder to use a mechanical fan? In the past I have not had sufficient air flow with electric fans to cool. Perhaps today's units do the job.

.... S/D, well to be honest, I have not... This particular radiator is snuggly all the way forward in the frame, the angle of the front of the engine is closer at the bottom, than the top, the dia. Of the fan, misc., etc. .... So with the fan/shroud assy. Mounted in the front..of rad.,...I was trying to kill a few birds at once. My theory there being...with my location of usage here... Low altitude...no deep snow...packed/groomed trails, etc. Wouldn't be working it as hard , as to the opposite . more idle time. Diesels run cooler on a rule, as opposed to a gas engine. So I was anticipating a winter front may be needed, after testing . same scenario with the trans. Cooler. Great question S/D. Thx for info BFT. I've got to get in gear to get to the test modes.

 

[Blackfoot Tucker]

Sno-Drifter and Olympic Orange, thanks for the kind words.


Sno-Drifter, A dual-quad setup on a 409 sounds nostalgic... and fun. I'm guessing when you installed that, fuel economy wasn't a consideration. I think today that would get you a wanted poster at a Prius and Tesla convention (if there were such a thing).

 

[sno-drifter]

Wrong BFT, I had a great increase in fuel economy. However, the transplant was to the '61 GMC carryall which came with the 305 V-6 boat anchor which on a good day would get six MPG. It was fun to drive back in '63, not to many stock models were quick then.

O O You should be fine in the conditions you defined. I am thinking of the balls to the walls pulling up a mountain or towing a groomer.

 

[olympicorange]

..... They always said a 4BBL would get better fuel economy... As opposed to a two BBL ... Due to the size of the primary jets. As long as you don't open up the secondaries. But what fun is that...lol. Yes, if I was to work it hard, instead of being an Uber....I would expect it to Heat. If the usage demands ever change, so will the needs. ... Thx guyz....

 

[olympicorange]

..... Hmmmm.....interesting idea on the hyd. Driven fan option. Didn't we have a quick comment or two, on keeping weight down on a tucker....lol. Take into consideration the components involved to support the operation of such.... Hyd. Motor, hoses, calving(depending on make& model), fittings, oil volume in the hoses, etc. ...what did I forget. Oh, maybe another inline filter...what about the need for a hyd. Cooler for the addition of fan circuit...larger hyd. Tank, .. Misc. Also adds more things to leak down the road... Man am I a buzzkill... I work with them on a lot of different applications...they sure do move a volume of air....oh the pros& cons....

 

[olympicorange]

..... " valving"""....D amn auto correct...

 

[redsqwrl]

I have a 3.0L mercedes going into a 1450 super imp. I have a dilemma with the fan that stalled my interest in a speedy build. the mercedes used a off center to the right fan on a idler. I refuse to use electric fans anymore. ( many reasons all discussed previously) I was put onto the hydraulic fans from Jeep grand cherokees. I toured the local pick and pull to see what the system entails.

I think you might be amazed at the simplicity of the tinker toyish design on the system. You most likely have the bread truck aux drive steering/brake pump laying about..... if not they can be had cheap.
your angle radiator to motor will not be an issue as the fan is radiator mounted. I am sure it could push as opposed to pulling air.

just thinking out loud

 

[Cidertom]

Thinking we need a 'fans' thread. But, since I'm here, my 2 cents on the airflow issues. I've seen several units both fixed and mobile that had great big radiators, fan(s) and still had trouble. They also had little in the way of outflow room.



The area for air to flow out of should be larger than the intake area to limit back pressure. Big, high pressure intake fans may make up for some of the restriction. Add in the hoses, generators, pumps and other stuff the restriction is increased by eddies and turbulence. I've seen more than one cat with belly pans that close off a lot of the exit, and/ or redirect the hot air to below the radiator which then gets sucked into the cooling airflow.



I liken it to the folks that put 4/0 (+) battery cables and 10 ga (-) cables and still wonder why they can't get it to spin well. The Louisville Ford Fire engines I used to have suffered from this. Going down the road, the air pressure from movement and the fan did ok, But when pumping hard they would overheat unless the hood was popped. They had very little room between the engine and the frame for air to get by.



Short version: Air flow is a system, and for a system to work well, every part in the system needs to be evaluated to see if it is doing the job, or not.

 

[Blackfoot Tucker]

Wrong BFT, I had a great increase in fuel economy. However, the transplant was to the '61 GMC carryall which came with the 305 V-6 boat anchor which on a good day would get six MPG. It was fun to drive back in '63, not to many stock models were quick then.

O O You should be fine in the conditions you defined. I am thinking of the balls to the walls pulling up a mountain or towing a groomer.

I've always considered dual quads to be very high performance. Your must have been set up and tuned very well (why am I not surprised).

One of my very best friends has a 1968 Shelby GT-500. He installed a Ford 427 side-oiler engine and chose the dual quad intake and carburetor combination Ford offered on the 1966 427 powered Fairlane. I remember the Shelby having a Voracious (capital V) appetite for fuel, and high octane fuel at that! But the car is hugely fun, monsterly powerful and a real head-turner.

I'll bet you surprised a bunch of folks with the Carryall (and had fun doing it)!

 

[sno-drifter]

And the Carryall had the V-6 logos on the hood. Was fun to drive. The cam kinda gave it away. The next engine was the LS6. Got hard to find fuel for the 11:1 compression. Then we started with yellow oil burners.

 

[olympicorange]

……. so, back to ''side-stepping'',.. after 'ol ''nellie'' time,... yank the 3.9L , to finish up the mounts fab... and install the tranny torque convertor , flexplate , adapters, etc... I like to work the bugs out of the engine, before moving onto the tranny, etc.... with fluids, shifting , driveshafts, linkages,leaks, misc., etc... can be a lot going on, especially when you're working on units that you've never seen operate before, etc.... and it's a piece of cake with no cab or sheetmetal also,...

 

[mlang2005]

Love the work so far, however I second the recommendation for a mechanical drive fan solution before going much further finalizing the mounts.
There is a reason your diesel pickup sounds like a jet engine when the fan kicks in, all the more important with the auto trans adding heat.
Maybe the jwac will help cool the engine. Haha.

 

[olympicorange]

…….. thanks for the input, i'm still on the fence with the fan options,.. but time will tell.... as far as my tranny cooler, mine doesn't run thru the radiator, external from rad.... depending on the temp. gauge for trans,. may add another fan for it..... I know what jwa stands for,...what's your ''c'' stand for... but no,... would be the answer,....ha ha ….

 

[mlang2005]

Jwac is the acronym caterpillar uses for that type of after cooler

 

[olympicorange]

………. also very popular in the air force,.... lol

 

[olympicorange]

…..……. welding and grinding continues,...

 

[olympicorange]

…….. snuck in a few mins,... more fab.,...

 

[olympicorange]

……… pulled trans,... to finish frame cleanup, mounts, weld misc., …. alittle paint,... mock up time again,...

 

[olympicorange]

….. alittle more prep work,... s&p,......

 

[olympicorange]

………. finished the S&S ,... rustoleum is a colorful aide,...

 

[olympicorange]

……..… alittle more rustoleum….

 

[DAVENET]

Are you working by candle light out there??

 

[olympicorange]

……... it sure feels like it some days, dark wood interior ,... threw 5 gals. on the walls , on the back corners.... to see if any improvement.... waiting for dried result.....

 

[olympicorange]

……... raise them as high as possible, stand clear, pull the pin, let gravity do it's thing , … walla…..wedged tight ,...… perfect....

 

[olympicorange]

……. a few shades brighter,....

 

[olympicorange]

…. getting brighter by the coat...

 

[olympicorange]

…… connected t/c -flexplate bolts, upgraded blk. htr., relocated trans. filter, modulator,.. intermediate shaft,.. started tranny cooler location / fab. mount …. rad., and hoses,... secured mounts …. misc.,..

 

[olympicorange]

…… alittle fabrication the other day; lower rad. hose support, trans. cooler mounting brackets, cooler lines, misc.... forgot to take pics,...

 

[olympicorange]

………….. '' MERRY XMAS TO ALL'' ,...………..

 

[olympicorange]

……….. Santa nailed it ,... thx ''M'',.... speaking of key chains,....