power curve graph?
- audiocontr
- Posts: 1868
- Joined: Fri May 01, 2009 1:30 pm
- Location: Buffalo NY
power curve graph?
Does anyone have the powercurve graph of a standard Pinz engine laying around?
1973 712m
1968 Haflinger
1965 Pathfinder
1978 GMC Palm Beach (Hey, its got 6 wheels!!)
1968 Haflinger
1965 Pathfinder
1978 GMC Palm Beach (Hey, its got 6 wheels!!)
Re: power curve graph?
That and if a 2.7 could be posted as well, that'd be awesome.
1977 Austrian 710M
Re: power curve graph?
This site has the Maintenance manual posted on line.
The Torque/HP curves are there. As far as a 2.7 goes
that will be self-relative based on Dyno pulls, since this
was not stock.
The Torque/HP curves are there. As far as a 2.7 goes
that will be self-relative based on Dyno pulls, since this
was not stock.
Re: power curve graph?
It may just be the fact that I don't know french, but even with the aid of Google translate, I was unable to find the power graphs on that website. Is it under a certain section I may be missing? Thank you!
1977 Austrian 710M
Re: power curve graph?
Ha! Just kidding, I found it.
For those who struggle with the French (and metric) PS is roughly equal to horsepower.
m/kp is kilopond meter and one of those is equal to about 7.23 ft*lbs.
For those who struggle with the French (and metric) PS is roughly equal to horsepower.
m/kp is kilopond meter and one of those is equal to about 7.23 ft*lbs.
- Attachments
-
- pinzdyno.JPG (79.17 KiB) Viewed 4471 times
1977 Austrian 710M
- audiocontr
- Posts: 1868
- Joined: Fri May 01, 2009 1:30 pm
- Location: Buffalo NY
Re: power curve graph?
So max torque occurs at 2k and slowly falls off after that. I'm looking at the output of some small diesel engines which have a much lower max rpm and i wonder how it would work with the stock gearing.
I wonder how many people drive within the 3 to 4k rpm range on a normal basis?
I wonder how many people drive within the 3 to 4k rpm range on a normal basis?
1973 712m
1968 Haflinger
1965 Pathfinder
1978 GMC Palm Beach (Hey, its got 6 wheels!!)
1968 Haflinger
1965 Pathfinder
1978 GMC Palm Beach (Hey, its got 6 wheels!!)
- Jimm391730
- Posts: 1456
- Joined: Wed Apr 14, 2004 10:58 pm
- Location: Idyllwild, CA
Re: power curve graph?
For a 710, anything over about 50mph is over 3k rpm... I'd guess that 90% of the owners run in this range at least part of the time.I wonder how many people drive within the 3 to 4k rpm range on a normal basis?
Jim M.
712W and 710M
712W and 710M
Re: power curve graph?
With 31 inch tires I run at about 3400 RPM to go about 48 to 50 MPH. After I changed from 33's I did notice a change from about 2800 to 3000 RPM for the same speed. I can't get into my garage with 33's so I came down to 31's.
So for a trip of 400 miles I am running at that speed most of the time...except up hill. Then it is a labor to get over 20 MPH and most of the driving is above 6000 feet in altitude. Down hill is much better for speed but then I am constantly backfiring with the unburned fuel going through the hot pipes.
I've had the pinz for ten years now and sometimes I wonder if it is worth the trouble. Need more power.
So for a trip of 400 miles I am running at that speed most of the time...except up hill. Then it is a labor to get over 20 MPH and most of the driving is above 6000 feet in altitude. Down hill is much better for speed but then I am constantly backfiring with the unburned fuel going through the hot pipes.
I've had the pinz for ten years now and sometimes I wonder if it is worth the trouble. Need more power.
Any man who thinks he can be happy and prosperous by letting the government take care of him:
better take a closer look at the American Indian.---Henry Ford
better take a closer look at the American Indian.---Henry Ford
- Jimm391730
- Posts: 1456
- Joined: Wed Apr 14, 2004 10:58 pm
- Location: Idyllwild, CA
Re: power curve graph?
20-30% more power is available - Ask Jim L. about his 2.7l conversions. My 8,000 pound 712W goes up moderate hills in 5th gear (1:1 in a stock transmission; 4th in the TD tranny I have) that I had to downshift to make it up before. Although I have the EFI system, I ran the 2.7l with stock carbs for a year first and saw the power increase. EFI did not make much difference in power but did improve starting and cold torque and overall drivability.Need more power.
When we first did the EFI, we put the truck on a dyno (a challenge with the 712!) - saw a peak power at the wheels at over 60Hp, the dyno operator said he assumes that 1/3rd the engine power is lost in the transmission and other gearing (and would be worse than he expects in a Pinz, due to additional gears). So his interpretation is that my engine was peaking at well over 100HP. I don't know that I can find the dyno results anymore, but I'll post if I can find them.
Jim M.
712W and 710M
712W and 710M
Re: power curve graph?
Thanks for the tip. Left a message on his phone. Hope to have this done as his work load permits.
Have stock carbs rebuilt last year.
Have stock carbs rebuilt last year.
Any man who thinks he can be happy and prosperous by letting the government take care of him:
better take a closer look at the American Indian.---Henry Ford
better take a closer look at the American Indian.---Henry Ford