Advantage larger turbo for towing
05-13-2006, 08:48 AM
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Advantage larger turbo for towing
i have "melted " pistons twice in my 01- towing each time. What is the advantage of a larger/different turbo charger? Had one person say a larger turbo would protect engine from overheating while towing ?
Just got it back from Cummins at a cost of 6500.00 with a 6 month unlimited milage warrenty. Would like to have it last longer than 6 months.
Just got it back from Cummins at a cost of 6500.00 with a 6 month unlimited milage warrenty. Would like to have it last longer than 6 months.
05-13-2006, 10:49 AM
#2
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pistons
Originally Posted by herb
i have "melted " pistons twice in my 01- towing each time. What is the advantage of a larger/different turbo charger? Had one person say a larger turbo would protect engine from overheating while towing ?
Just got it back from Cummins at a cost of 6500.00 with a 6 month unlimited milage warrenty. Would like to have it last longer than 6 months.
Just got it back from Cummins at a cost of 6500.00 with a 6 month unlimited milage warrenty. Would like to have it last longer than 6 months.
05-13-2006, 11:05 AM
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Originally Posted by johnh
what was your egt when you lost the piston?and was it #6?
number 1 the second meltdown
1200-1250 highest egt's
had Bosch 300 injecters Cummins suggested that i may have been getting to much fuel with these injecters (also have an edge )
when they did this rebuild they put new (stock) injecters in.
05-13-2006, 02:27 PM
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Originally Posted by herb
number 6 the first meltdown
number 1 the second meltdown
1200-1250 highest egt's
had Bosch 300 injecters Cummins suggested that i may have been getting to much fuel with these injecters (also have an edge )
when they did this rebuild they put new (stock) injecters in.
number 1 the second meltdown
1200-1250 highest egt's
had Bosch 300 injecters Cummins suggested that i may have been getting to much fuel with these injecters (also have an edge )
when they did this rebuild they put new (stock) injecters in.
Randy
05-13-2006, 02:47 PM
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Originally Posted by Charlie8301
1200-1250* for how long? Short bursts to 1300-1400* should be just fine. But sustaind temps above 1200* is risky. What boost number are you seeing?
Randy
Randy
18-22 lbs i was under the understanding that 1200-1250 was perfectly fine to run at?
05-13-2006, 02:56 PM
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Originally Posted by Charlie8301
It all depend how long your holding 1250*. Do you have a turnbuckle on the wastegate?
Actually , i have a stiff spring actuator on the wastegate installed by ats when they did my tranny
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05-13-2006, 02:59 PM
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There's some info here on max sustained egt's
http://dodgeram.org/tech/dsl/Facts/0...s.html#max_egt
Randy
http://dodgeram.org/tech/dsl/Facts/0...s.html#max_egt
Randy
05-13-2006, 03:05 PM
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I'm running a SPS62 from II. It's a little warm for my setup, but it spool well and has good manners. It would make a good towing turbo but don't kow if it would work with your exhaust brake
05-13-2006, 04:08 PM
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Originally Posted by Charlie8301
I'm running a SPS62 from II. It's a little warm for my setup, but it spool well and has good manners. It would make a good towing turbo but don't kow if it would work with your exhaust brake
05-13-2006, 07:37 PM
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Originally Posted by herb
18-22 lbs i was under the understanding that 1200-1250 was perfectly fine to run at?
05-13-2006, 08:42 PM
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Originally Posted by Ph4tty
If thats the case a boost elbow would help keep temps down with your existing charger.
Randy
05-14-2006, 08:52 AM
#14
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More air WILL protect better and keep temps down!
If your towing fairly heavy...with added fuel & timing, I would lower the sustained egt's. I feel over 1200 sustained is too much.... ok for stock fuel/timing but...... The key words are towing heavy! Others have had problems while towing at those temps with EZ & injectors.
Either turnbuckle your turbo for more boost (30+/-) or go to an HX-35 with a boost elbow for about 35 psi. With your EZ & injectors, your engine will be much safer, smoother & happier with more air.
RJ
If your towing fairly heavy...with added fuel & timing, I would lower the sustained egt's. I feel over 1200 sustained is too much.... ok for stock fuel/timing but...... The key words are towing heavy! Others have had problems while towing at those temps with EZ & injectors.
Either turnbuckle your turbo for more boost (30+/-) or go to an HX-35 with a boost elbow for about 35 psi. With your EZ & injectors, your engine will be much safer, smoother & happier with more air.
RJ
