12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

intercooler relocation

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  #21  
Old 09-05-2010, 01:50 AM
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Originally Posted by tiremann9669
What about relocating the AC condenser under the bed with an electric fan on it since you're only having problems when it's hot with the AC on. That way you wouldn't be creating turbo lag. Just a suggestion, IDK maybe it's a dumb idea
that will be expencive

1. the line is a fortune with the conectors and all
2. the A/C condencer is super fradgil with all the road trash it will be destroyed in no time

Trevor,

since its not a cooling problem and is only happing on HOT days I would just leave it as is
and put on a good set of electrics how much room do you have from the radatior to the belts? I have a setup on mine that pulls 8,000 CFM fits the first gen radatior and is fairly cheep (about $250)

Specs...

Maximum Fan CFM 4,000 cfm Each
Fan Quantity
DualFan Diameter (in) 13.000 in.
Height (in) 13.820 in.
Width (in) 28.500 in.
Thickness (in) 3.190 in.
Number of Blades 10 blades
Maximum Fan RPM 1,670 rpm
Blade Material Plastic
Blade Color Black
Shroud Color Black
Shroud Material Plastic
Amp Draw 50.00 amps
Mounting Hardware Included Yes
Quantity Sold individually.
Notes Dual relay harness included.

and if thats not a good route try something like this to get the I/C out of the way

Water to Air Intercooler

water to air is probly not best for street but if it fixes your probs so be it.
 

Last edited by big bad diesel 416; 09-05-2010 at 01:52 AM.
  #22  
Old 09-05-2010, 02:29 AM
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Originally Posted by big bad diesel 416
that will be expencive

1. the line is a fortune with the conectors and all
2. the A/C condencer is super fradgil with all the road trash it will be destroyed in no time

Trevor,

since its not a cooling problem and is only happing on HOT days I would just leave it as is
and put on a good set of electrics how much room do you have from the radatior to the belts? I have a setup on mine that pulls 8,000 CFM fits the first gen radatior and is fairly cheep (about $250)

Specs...

Maximum Fan CFM 4,000 cfm Each
Fan Quantity
DualFan Diameter (in) 13.000 in.
Height (in) 13.820 in.
Width (in) 28.500 in.
Thickness (in) 3.190 in.
Number of Blades 10 blades
Maximum Fan RPM 1,670 rpm
Blade Material Plastic
Blade Color Black
Shroud Color Black
Shroud Material Plastic
Amp Draw 50.00 amps
Mounting Hardware Included Yes
Quantity Sold individually.
Notes Dual relay harness included.

and if thats not a good route try something like this to get the I/C out of the way

Water to Air Intercooler

water to air is probly not best for street but if it fixes your probs so be it.
So do you think the condenser is more fragile than the Intercooler , You could put some kind of grille on it to protect it same as on the front of the truck ?
 

Last edited by tiremann9669; 09-05-2010 at 02:32 AM.
  #23  
Old 09-05-2010, 02:37 AM
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Originally Posted by tiremann9669
So do you think the condenser is more fragile than the Intercooler , You could put some kind of grille on it to protect it same as on the front of the truck ?
yes the I/C is a thicker aluminum than the A/C shoot you can bend the A/C fins with a good air hose or a PSI washer

and yes I have seen guys mount them 4in from the bottom of the bed (4in to allow flow)
and have them encased in expanded metal with real tiny holes I have some pics here somewhere I believe let me look
 
  #24  
Old 09-05-2010, 07:41 AM
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1. the line is a fortune with the conectors and all
2. the A/C condencer is super fradgil with all the road trash it will be destroyed in no time
I just rebuilt my truck, had to replace the intercooler and the radiator due to leaks, but the condenser was fine. Considering that it's on the outside, I think that should give you an idea how fragile it is(not so much). Also, the condenser is built to handle several hundred psi, try pumping that in to your intercooler or radiator. AC piping is much cheaper that inercooler piping too, what were you looking at? Your ac won't be affected by the long run either. Putting more pipe in the air sytem will cause a number of negative effects.
 
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  #25  
Old 09-05-2010, 10:30 AM
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Originally Posted by 94cummins12v
thats not entirely true i perfer the down flow over the cross flow my down flow in my fummins conversion cools better than the crossflow that was in my dodge.
I guess that explains why the early 1st Gens had cooling issues and so many people upgraded to the bigger crossflow radiator.
 
  #26  
Old 09-05-2010, 12:21 PM
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Originally Posted by Drothgeb
  1. Considering that it's on the outside, I think that should give you an idea how fragile it is(not so much). Also, the condenser is built to handle several hundred psi,
  2. AC piping is much cheaper that inercooler piping too, what were you looking at?
  3. Putting more pipe in the air sytem will cause a number of negative effects.

  1. Correct but you put that under the truck where it can get wet and caked with dirt and hit with rocks and road debris ect ect you ever seen a fuel cooler on a big rig? they are built just like an A/C condenser (as far as fins) lets just say they fer messed up real fast
  2. I/C piping can be had for 3 bucks a foot and 2 bucks being they want 45 bucks for each hose in my A/C system......
  3. That has already been stated
and with 5% bent fins or lack if air flow can = up to 30% cooling loss
 
  #27  
Old 09-05-2010, 02:17 PM
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i would love to run a nice seat of electric fans but i dont have the room. i dont think i even have the slightest bit over 3" of clearance and less than that around the belts and pulleys. i have hardly any room at all literally. i might try and go back to the crossflow radiator and mechanical fan again but i dont know exactly what im going to try and do. i have dual 12" pusher fans on the ac condensor right now and a ford taurus 4000 cfm fan on the radiator but it still doesnt cut it
 
  #28  
Old 09-05-2010, 04:50 PM
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Originally Posted by tltruckparts
i might try and go back to the crossflow radiator and mechanical fan again
That would be my advice. They are tight even in the Dodges. One problem related to this is the fan going into the rad when the tranny mounts let go. Get a 2nd gen fan and clutch. They will move more air than any two electrics. Make sure it is properly shrouded - that is key.
 

Last edited by NadirPoint; 09-05-2010 at 04:52 PM.
  #29  
Old 09-05-2010, 05:37 PM
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It's not a good idea to move either under the bed, but if I had to make a choice I'd still do the condenser. Sure it's gonna get hit with debris, sure it's gonna get caked with dirt. Like the Intercooler isn't, if spendin 100 bucks or 2 on lines to keep my boost is wrong then I guess I'm wrong. For another thing I can buy a dozen condensers for the cost of 1 Intercooler
 
  #30  
Old 09-05-2010, 11:59 PM
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Originally Posted by NadirPoint
That would be my advice. They are tight even in the Dodges. One problem related to this is the fan going into the rad when the tranny mounts let go. Get a 2nd gen fan and clutch. They will move more air than any two electrics. Make sure it is properly shrouded - that is key.
maybe i will try that. do you by chance know if the 2nd gen fan is a little smaller or not than a 1st gen fan? my 1st gen fan was hitting the hood a little bit when i shut it so i had to file it down the slightest bit to clear. my 140amp alternator is even taking a hit with 3 big fans on all the time so mechanical would be the way to go i guess. i just gotta find a mechanical fan small enough to clear the hood thatll thread onto the cummins belt pulley spindle.

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also what is the difference between the 1st gen fan clutch and fan blade and the 2nd gen? i have the 1st gen setup and i would hate to have to buy another one if there is no difference
 

Last edited by tltruckparts; 09-05-2010 at 11:59 PM. Reason: Automerged Doublepost


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