12-28-2007, 12:19 PM
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Registered User
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Join Date: Mar 2007
Location: DELAWARE
Posts: 1,041
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Quote:
Originally Posted by Roncallo
No the 103 is not short on HP but a stock M119 starts life at 315 HP and more than likely more torque over a wider range than your 350HP M103.
My biggest question is this choice is it's application into a 560SEC. The 560SEC is a luxury coupe. When you start to pull 350 HP from a 103 is has to be a whinny screaming engine. In my opinion this type of application into a 560SEC will reduce the value of the car. 450HP can be had out of an M119 without much effort or suffering of drive ability. Or 700 to 1000 HP can be done with a whinny screaming scenario. I believe an M119 installed into a 560SEC will increase the value of the car even with performance enhancements up to about 500 HP as long as the spirit of the car remains intact.
My personal #1 choice for the 560SEC is the M120 V12. See Steve in SoCal sticky on this. If you loose the throttle by wire and MB engine management this becomes an affordable option. But I would put a Chevy 7.0 liter vett engine in as a second choice.
John Roncallo
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I was addressing the OP with a 300SEL....not sure how we got to 560SEC and M120 V12...trying to stay on topic !!!!
"Whinny screaming engine".....
You really aren't familiar with the M103-12V if you make such a comment !!!
Max torque @ 4250RPM, max HP @ 5500RPM....very flat curve, no turbo lag, no kick in, starts producing around 1500-1700RPM.
I'm probably close to 400 lb ft at the flywheel @ .48 bar boost on the Garrett T2's.
How does one get 450HP from a M119 without much effort ????
Sure more HP from a M119 V8 but what is your power to weight ratio?
Ed A.
P.S.
My 300CE is also a "luxury coupe"....or at least that is what I was told when I paid 53 large for it in May of 1988...
More expensive then the SL, and second to the SEC.....
My install of a Turbotechnics kit circa 1992 more then meets the "spirit" of the car...
Why?.... because it was an available option installed at delivery by a UK Merc dealer....
No different then dealer AMG mods at the time.
MY 300CE is very "period" and unlike others who
build monster engines that explode, my M103-12V performs like a stock engine from idle to 1500 rpm, including passing emissions controls.
No loud exhaust, just an AMG like V8 rumble on acceleration....!!
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