Tom Caffrey (Pvcces)
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Votes: 0 (Vote!) | | Posted on Monday, April 18, 2005 - 1:03 am: | |
Randy, that's going to cost you some. I don't happen to know what weight you might be running, but you might try figuring out your hp/wt ratio to get an idea what you have now.
If you compare that with other coaches, you will get an idea what kind of performance was built into these buses. Our 4106, as converted, runs near 100 lbs. per horsepower (27,000/270).
This is good for around 2 1/2 to 3% grades in high gear and over 5% in third. It's enough for us, but we do get squeezed from time to time by impatient motorists.
When you work out what is possible and what the costs are, it will be a little easier to make a sensible choice. If you're just struggling at high elevation, there is a cheaper fix called a normalizing turbo.
All that does is make sure you have sea level or slightly higher air pressure fed into the engine all the time. This doesn't require a rebuild, which is why it costs less.
Every report I've seen about this sort of thing was favorable, even though it will cost more than just adding an ordinary turbo. Fuel economy has reportedly improved, as well.
Don't forget to establish whether your engine is performing right up to snuff. For my purposes, I just try to find out if I'm getting top fuel mileage for the setup.
You won't get that if the engine is not right. Besides, your engine is not fully broken in yet, is it?
For what it's worth.
Tom Caffrey PD4106-2576
Suncatcher |