cummins aftercooler

[SteveR]

Has anyone out there tried an aftercooler on their engine? I'm getting ready to try one. I know it won't be as efficient as the intercooler (air to air), but the elec. fans aren't doing the job in my cummins powered chevy. I think by removing the intercooler I can gain enough room to put the mech. fan back on. Cummins puts aftercoolers on a lot of their industrial engines. If I had the room, I think I would run both like the cat in my Kenworth.

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Cummins Powered Chevy

 

[dasyure]

Im using one air temp ran about 150 before I put a nother radiator on for it now air temp runs about 110, never had a intercooler so I can't give any comarisons any other questions? I would like to know what the air temp is with a intercooler?

 

[illflem]

I've found that the temp past the inner cooler is about 30° higher than the outside temp if you are running on the flat empty.

 

[Dreher]

This weekend on the freeway I was running 70 mph for a couple of hours. The outside temp was about 70-75, and the intake air temp measured from the PCM was a constant 95. This was with an open K&N 0880 (no housing) drawing air from under the hood.

Bob

 

[dasyure]

It's realy good to know the air temps I have are that close to intercooled. It looks to me like I wouldn"t see any differance in power if I had a intercooler, it was also alot cheaper and easyer to fit in. thanks for the numbers
Sean

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87 F350 dually crew cab 4x4 89 5. 9bta 5spd np205 3. 55LS 99 dana 60 front 370 pistons/injectors, BD 4" remote exhaust brake, cyberdye temp/pres gauges dual isspro egt, isspro temp monitor, kn 0880, horton fan, water after cooler, cliped hx40 16, amsoil bypass filter, remote racore fuel filter, holley 110gph fuel pump, 4" exhaust, 280 gallon in bed main fuel tank, 4 cameras fed to a vcr, built in 500mghz computer(gps tv mp3s), dynoed 317hp hit the 992 cut off on tourqe

 

[LarryB]

The intercooler makes very little difference until boost gets higher. The heat comes mainly from the compressing of the air. Check out the discharge line on your shop air compressor after it has been running, Yowee!! HOT. The intercooler brings temps of compressed air down so more fuel can be added without overtemp of EGT.

Also, the reason for intake systems that use outside air is to use cooler air to begin with. Again, more fuel can be added for more power.

Check your post intercooler temps during full boost/power to get true comparisons for evaluating intercoolers.

Just my $. 02

Larry

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1972 Chinook class C with 96/215 5spd, 4/5" exh, 4"BD, MagHytec, 85gal fuel, K&N RE0880, AutoMeter, 370's, BD gov kit, BD afc kit, 16cm, 16%btdc, yada-yada-yada
www.fostertruck.com/cummins

[This message has been edited by LarryB (edited 05-15-2001). ]

 

[SteveR]

Those are interesting numbers. I ordered the industrial aftercooler from Cummins today. When I get it on I'll let you know what power and EGT differences there are. I am able to pull about 42lbs of boost now, and I might notice the turbo temps get hot quicker. We'll see. Thanks for the input.

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Cummins Powered Chevy

 

[w-cummins]

Originally posted by SteveR

Those are interesting numbers. I ordered the industrial aftercooler from Cummins today. When I get it on I'll let you know what power and EGT differences there are. I am able to pull about 42lbs of boost now, and I might notice the turbo temps get hot quicker. We'll see. Thanks for the input.



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Cummins Powered Chevy

Did you get the aftercooler? how did it work? I assume that you had to make up the tube up to connect it as the motors they ran them on i. g. cpl 600/599 have a diffrent manafold