Mercury Racing Unveils 565 Engine with Digital Throttle and Shift
02-25-2012 | 06:11 PM
#51
Neno the mind boggler
Joined: Sep 2001
Posts: 13,080
Likes: 320
From: toledo oh
Ray, generally I like to keep a low profile regarding my work background. Test engineering is just one of them. You can question my experitise as a marine engine builder - I've never built one!
I'm sure you guys have a whole host of issues I've never dreamed of.
Some of the engine tests we ran:
* 100 hours between peak torque and peak horsepower. Some tests were extended to 200 hours. Now I believe 200 is the norm. They run some to 400 hours.
* Long term idle tests (sounds easy, but is brutal on some parts, especially the old flat tappet cams).
* Cold start tests to -20F or below.
* Overheating tests, including running engine with no coolant.
* Road tests up to 100,000 miles, and some at high speeds up to 100 mph.
* Octane tests.
* Water ingestion and splash tests (run the car through deep water at high speeds)
* Cooling tests (idle, grade, towing).
* Coolant corrosion tests.
* Fleet tests.
* Salt spray tests.
The testing is very extensive, and is one reason why automobile engines last so long now. I was talking to some Ford engineers last Fall, and was impressed with the testing they did on their Ecoboost engine. They said they did their durability test at full throttle at peak horsepower for I believe 200 hours, which is a lot for a turbo engine. That's brutal! One engine they ran in the Baja 1000 race, put it through some towing tests, and then put it through their normal dyno durability schedule. On their Powerstroke diesel engine, they essentially double the gasoline test schedule.
I forgot to mention that the auto manufacturers do so much engine dyno durability testing that they actually sell the power generated by the testing back to the utility companies.
Michael
I'm sure you guys have a whole host of issues I've never dreamed of.Some of the engine tests we ran:
* 100 hours between peak torque and peak horsepower. Some tests were extended to 200 hours. Now I believe 200 is the norm. They run some to 400 hours.
* Long term idle tests (sounds easy, but is brutal on some parts, especially the old flat tappet cams).
* Cold start tests to -20F or below.
* Overheating tests, including running engine with no coolant.
* Road tests up to 100,000 miles, and some at high speeds up to 100 mph.
* Octane tests.
* Water ingestion and splash tests (run the car through deep water at high speeds)
* Cooling tests (idle, grade, towing).
* Coolant corrosion tests.
* Fleet tests.
* Salt spray tests.
The testing is very extensive, and is one reason why automobile engines last so long now. I was talking to some Ford engineers last Fall, and was impressed with the testing they did on their Ecoboost engine. They said they did their durability test at full throttle at peak horsepower for I believe 200 hours, which is a lot for a turbo engine. That's brutal! One engine they ran in the Baja 1000 race, put it through some towing tests, and then put it through their normal dyno durability schedule. On their Powerstroke diesel engine, they essentially double the gasoline test schedule.
I forgot to mention that the auto manufacturers do so much engine dyno durability testing that they actually sell the power generated by the testing back to the utility companies.
Michael
Break'in stuff for a living sounds fun . . . . . I'm still at the hobbyist level though
__________________
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
02-25-2012 | 06:34 PM
#52
Registered
Joined: Oct 2004
Posts: 1,499
Likes: 48
From: Newbury Park, CA
It's funny. At the time, it seemed very tedious with lots of documentation, and was one of those jobs everyone wanted to move "through" to get to design engineering. In retrospect, though, it was one of the most educational, fun and memorable jobs I've had.
Michael
02-26-2012 | 01:25 AM
#54
Registered
Joined: Oct 2004
Posts: 1,499
Likes: 48
From: Newbury Park, CA
Sometimes I have to pinch myself because it is such a change, but I am doing IT consulting now. I try to keep abreast of what going on in my old field, though, since it's a love of mine.
I take it you are in graphics. What type?
Michael
I take it you are in graphics. What type?
Michael
#6 lbs vrs Bravo 1 lbs???Weight?
