Quote:
Originally Posted by CoyoteStarfish
Doesn't a OM606 get around 30MPG and have well over 150+HP, stock?
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Stock power is 148hp from the 3.0L, 200lb-ft of torque. The MPG depends on the chassis and gearing. Best you'll likely ever see is in a W124, at 32mpg, anything past that requires extra gravitational pull from the moon, or lots and lots of downhill driving. More common is 26-29mpg. Some more power specs for various years, engines, etc is at
this link.
Quote:
Originally Posted by CoyoteStarfish
Not that I really want to deal with a computer controlled engine, but a 606 does sound nice. (WAY out of budget!  ) |
The Finns use a 606 engine with a mechanical 603 pump. Straight swap other than getting creative with throttle linkages. Forget trying to run it electronically in an old chassis (123, 124, 126).
Quote:
Originally Posted by CoyoteStarfish
In lieu of that thought, I would like to know.. what can a 603 yield as far as power and economy?
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The power is limited by your budget. The stock pump is wheezing and coughing by 175-180hp (at the crank). 6mm elements might get you to 200-220hp (not sure exactly, nobody has done it yet, but I'm working on it.) Myna can get you to 450hp on a 603, or 500hp on a 606, provided you have enough airflow and intercooling capacity. Figure $2000 for the Myna pump, including shipping both ways.
Quote:
Originally Posted by CoyoteStarfish
Also, what transmissions were available? Any manual gearboxes?
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99% are automatics. The 722.3 tranny can be built to withstand 500hp and 500lb-ft and survive. And, numerous tranny builders can do this. For a manual box, you're on your own - good luck. A manual also has the problem of losing boost with each lift-throttle upshift.
Quote:
Originally Posted by CoyoteStarfish
Can some of these great innovations such as variable geometry turbos (VGT) be fitted to them? Two stage injectors? Intercooling? What modifications can be made to the fuel delivery system to provide more fuel?
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VGT, yes, but you're talking full custom plumbing, and custom computer controls. I've seen a dyno graph on the Schuman forum that was amazing but I think the controller alone was like $3k. Two stage injectors, not sure, I don't think the Finns are using anything other than stock injectors. If it works for them, I wouldn't re-invent the wheel. Intercooling, that's up to you... depends on your power levels, how much room there is in the chassis, if you are willing give up the AC condenser, etc. The fuel delivery system should be adequate, worst case you might need a "pusher" pump back under the tank, but I doubt it.
