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#1
06-28-2007, 05:45 PM
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intercooler question
does anyone think i might run to lean with a IC installed?
__________________
1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting 1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal 1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace 1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild, 
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#2
06-28-2007, 06:10 PM
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You can't run a diesel "too lean". They always run with an excess of air unless overfueled.
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#3
06-28-2007, 07:36 PM
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100:1 is acceptable idle lambda for diesels. Not sure specifically on MB. For instance if you let your foot off the go pedal it just cuts the fuel, it does not down rate fuel to rpm level to keep lambda at stoich. Go and no Go.
__________________
http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#4
06-28-2007, 10:59 PM
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The intercooler will have nothing significant to do with fuel mixture.
As Brian stated, the diesel is a lean-burn engine. Unlike most gasoline engines, there is no throttle in the airflow, it is always treated to as much air as is available. Fuel is increased to increase power (up to a point).
__________________
 Gone to the dark side - Jeff
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#5
06-28-2007, 11:23 PM
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It will run cooler with an intercooler.
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#6
06-29-2007, 12:07 AM
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I've read here in this forum that diesels run more efficiently when hot.
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DJ 84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012 
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#7
06-29-2007, 12:50 AM
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The engine runs better hot, but cooler combustion (to a point) is more efficient.
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#8
06-29-2007, 02:22 AM
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after the IC and 3' exhaust, im going to give it a sniff of propane for hills, spray it right into the turbo fins so it mixes all throught the ic evenly
in time injectors and then entire inframe rebuild for fun  in end i just want a little more fuel effiency 
__________________
1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting 1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal 1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace 1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild,
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#9
06-29-2007, 08:21 PM
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I'm not sure of the combustion temperature of propane, might ignite in the turbo.
__________________
Gone to the dark side - Jeff
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#10
06-29-2007, 08:35 PM
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You want to do that post turbo... Ever notice how it glows after a good workout?
__________________
http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#11
06-29-2007, 08:42 PM
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Pre-turbo might make for some neat fireworks out of the air-filter following an impressive turbine stall.
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Gone to the dark side - Jeff
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#12
06-29-2007, 08:57 PM
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i agree post turbo. it will not work pre turbo it will simply suck the propane tank dry and kill your engine. propane relys on venturi action to suck the propane out. plus i would never drill into my turbo housing... or anything infront of it. if anything were to fall into the turbo housing it would destroy it very quickly.
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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? As long as they would add one additional commandment for you to keep thy religion to thyself. George Carlin (Wonder where he is now..) 1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won. pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.
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#13
06-30-2007, 01:34 AM
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Post Turbo? My K&N style Intake has a Fitting for a propane system... Its between the Air filter and the turbo. I dont know if its correct but people are fogging with propane Pre-Turbo
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1984 300D Water-Alcohol Injection System, Pyrometer & Boost Gauge running B100 (soon to be homebrewed!!!)
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#14
06-30-2007, 01:40 AM
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Quote:
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Linear Mode
