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Old 12-28-2007, 10:16 AM
Roncallo Roncallo is offline
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,510
Quote:
Originally Posted by RBYCC View Post
Don't sell the M103/M104 short as far as being able to make power.

The stock transmission he has will more then handle a Mosselman TT install.

I'm running a stock 722.358 with 63K miles behind a M103-12V Turbotechnics twin turbo.

Making about 350+ HP and Torque.

Performance is faster then any 4.3L, 5,4L NA AMG V8.
Runs low five seconds to sixty mile per hour.

You don't have to build a 1000HP "hand grenade" that will ultimately explode....
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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