| Author |
Message |
shawn bennear (Lilneoplan)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, August 25, 2005 - 12:18 pm: | |
I am wondering if there is a quick way to reset the governed speed on a detroit 8.2 with the williams air throttle system? I would like to get the top speed from 62 to possibly 65 or 67.
can this be done, or will it hurt the engine?
thanks!
shawn |
David Hartley (Drdave)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, August 25, 2005 - 1:01 pm: | |
Depends on your rear end gear ratio, You may not have a governor limitation but the engine already being maxxed out by a high ratio rear end gear.
There's a lot to figure also, Tire size, Axle ratios and max RPM at full load. Some engines max out at 2,150 rpm full load, Others can run up to 2,400 rpm full load. It really depends on the engine model and factory specs. Usually a faster diesel engine means a much shorter life span.
Please keep in mind here that most people on the boards don't know what a Detroit 8.2 is as it's not normally found in most highway buses or normal sized transits. Most are Detroits 671, 6V71, 6V92, 8V71 and 8V92 with a few of the luckier guys running Series 50's or 60's or the big Cummins or Cat engines.
Are you sure about your engine being a Detroit?
Just curious and trying to help where I can.... |
David Hartley (Drdave)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, August 25, 2005 - 1:17 pm: | |
Here's what I found on the 8.2 Engine
(CID) 8.2L/ (500 CID)
No. of Cylinders 8
Bore & Stroke 4.2520 - 4.2546" X 4.409"
SPECIFICATIONS
Basic Engine Fuel Pincher
(Naturally Aspirated)
Rated gross HP 165 BHP (123 kw)@ 3000 RPM
SPECIFICATIONS
Basic Engine Fuel Pincher (Turbocharged)
Rated gross HP 205 BHP (153 kw) @ 3000 RPM
Bore 4.25 in (108mm) 4.5 in (108mm)
Displacement 500 cubic in. (8.2 Liters) 500 cubic in. (8.2 Liters)
Dry weight 1096 lbs. (497 Kg.) 1121 lbs. (508 Kg.)
Hope that helps a little.... |
TWODOGS (Twodogs)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, August 25, 2005 - 5:27 pm: | |
take it to a truck shop...have them turn it up to 67....hard on the engine,will probably cut a feww thousand miles off it's life... |
Johnny
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, August 26, 2005 - 12:19 am: | |
...and the 8.2 Detroit doesn't have many to spare. The turbos are true hand grenades, the non-turbos are PAINFULLY slow, and still marginal.
With the fragile and underpowered 8.2, I'd live with 60MPH until I could repower (probably a 3208 Cat). |
john w. roan (Chessie4905)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, August 26, 2005 - 5:10 pm: | |
Put in a tach so you know what it is turning rpms now, then we could be more helpful. Really is going to depend on how fast it runs now.A shop with a hand held portable tach could tell what the governor is set at now. |
shawn bennear (Lilneoplan)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, August 26, 2005 - 6:45 pm: | |
how would you hook up a tach?
i have the 8.2 and a electrodyne alternator
shawn |
john w. roan (Chessie4905)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, August 27, 2005 - 2:12 pm: | |
Check out the Stewart-Warner, Autometer, VDO, etc. brands of tachs.... some are available that read off the flywheel or other rotating engine part. Also, check a shop that has worked on or is familiar with 8.2's. There may already be a tach output like the 6 or 8-71's.Check at truck shops, they might have a mechanic that has an rpm reader-you stick a piece of black or silver strip to the crank damper or edge of flywheel and then hold the reader close to the rotating part.Some farm tractor repair dealers have them also. Oh, and check a small engine shop.Once you know your governed speed and see if it can be safely raised, ( you don't want to run flat out now as your engine could be already set at too high a governed rpm) you may be able to defer the purchase of a tach for the present.Another way to check your rpms would be to find your axle ratio,ratio of trans in high gear, and tire size-diameter, then use the conversion chart that was discussed recently or check archives.At least this way you wouldn't have money spent to answer your question. |
Tom Caffrey (Pvcces)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 05, 2005 - 2:00 am: | |
Shawn, I don't see that anybody mentioned that your engine was a four stroke.
IIRC, the fuel pincher is an early direct injection model that really is easy on fuel. They were brought out after the Toroflow engines in 8.2 and 9 something liter versions.
The early ones had weak head bolts and lost head gaskets on a regular basis. There was a field change that involved replacing the head bolts with larger ones. I understand that they were much better after that.
We have one of the larger ones with the head bolt modification, bought from a local utility company.
One drawback to the fuel pincher design of the time was that the horsepower per cubic inch was pretty low. For pickup use, small diesels generally have prechambers for this reason.
Find out what speed you're turning before you do anything else to it. It's easy and will be worth the wait.
Tom Caffrey PD4106-2576
Suncatcher |
Nick Kapsis (Mugzy)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 19, 2005 - 4:41 pm: | |
I have an 8.2 L detroit V8 non-turbo that I'm planning to put in my boat. I would like to know what the horse-power and torqe are. Please RSVP thank you. |