What are you doing to get 65-70 mph out of a Pinz?

[andy]

I've seen numerous threads here, currently the thread on is EFI available, where people are talking about driving their Pinz at over 60 mph?

Is it the stock carburated engine or are these the 2.7's with EFI.

My 710M, as far as I know, is all stock, except the ignition, and it likes the 52 to 58 mph range. It will do 62-63 mph okay, but that usually requires a tailwind unless I have the pedal way down.

I don't normally need the speed, I'm getting about the same gas mileage as Jim mentions in his last posting on is EFI available now, but my Pinz doesn't like running at basically idle speeds off highway or on inclines. Those two places unfortunately are where it spends alot of it's time.

So, what is the cure or how does one mitigate that? Is EFI the only answer and will it give the Pinz more top end speed?



Andy

[75pinz]

In my experience, the Pinz varies drastically in speed from vehicle to vehicle. I have had a 710 that could easily run 70mph and I have had a 712 that could run 65 easily. Those two have been the exceptions as I think the 712 should be run @ 50 mph on the highway and the 710 should be 55-60. Others will disagree I am sure but this is based on owning about 15 Pinzs now...I have had one "perfect" pinz. That thing looked brand new. It had the worst driveline vibration of any that I have driven and had less than 6000 miles on it. I have found extended highway speeds to impact the driveline vibration significantly in a relatively short time. Trucks that did not vibrate at all seemed to start vibrating at 88-90km/h within a few thousand miles of 55+ mph.

[andy]

75pinz, and these were all basically stock Pingauers, right? That's interesting, especially your comment on the 710's running at 55-60 which makes me feel like mine is in the right ball park. Thanks.



Andy

[Jim LaGuardia]

To get higher road speeds you have to adjust the main carb linkage to get full throttle(Pull the hand throttle when the pedal is to the floor) also look for a pedal limiter on the bottom of the gas pedal (mine is removed)

[mjnims]

Kind of along the same lines as you are hearing. When asked how fast to drive their pinz I usually answer with let the Pinz tell you. Some will cruise along at higher speeds no problems. My current 712 will do 65 mph with the larger tires and not even feel as though it is working. My 710 feels like it will just explode as it approaches the 65 mph mark. I usually just drive them both around 55-60 mph as that is where I get the best "feelings" from both trucks. I do not know what the max speeds of each are as I have never had the desire or need to push them that hard. I have been splitting the driving duties of my pinzies between the two of them but still average around 30K miles a year in one pinz or another.

[andy]

Jim, thanks, I need to check that out.
Mike, "feel" is pretty much what I've been going on and so far it seems to work. Feel is where the 52-58 mph comes from. An extra 2 miles per hour, for me means two minutes extra to get where I'm going. As I've gotten older the need for speed has diminished significantly.

I just put the new Trus MT's on and haven't made a significant trip since they've been on to know how they will affect the feel of the wheel. I wore the other set out in about 17 months, but that's mainly from all the rocks around here.

Thanks for the info guys.

Andy

[mjnims]

Andy
I really like the Trxxus MT's but when time came to replace I could not get enough to go around on the 712. I ended up with the Mickey Thompsan MTZ's which to date seem to be about the same as teh Trxxus just with a lighter side wall. The highway ride is improved ever so slightly but I worry about them offroad as compared to the Trxxus. It is worth noting that to date there has been no issue with them and they do get their fair share of use both on the 712 and the 710. My 712's tires are a bit larger than the 710 which seems to help with the highway speeds but the steering takes more effort, could be the extra axle causing drag though.
I am reminded that I was able to improve the feel of my 712 on the highway when I changed the motor and tranny mounts. I actually found one of the engine mounts on the 712 broken but with no signs when driving. It was just on a routine inspection ot the truck that I found it. I chose to replace all the mounts and the vibrations diminished some. I am finding that there is not one cure for the vibrations in the truck but rather a bunch of little things which add up. Would be really great to drive a factory refurbished truck to see just how smotth they could be.

[andy]

Knock on wood, on the original set of Trxxus MTs I did NOT have a single flat tire. Several times I had pretty decent sized mesquite thorns in them, which I left there with no problems. The sidewalls are great. On the other trucks with other brands the sidewalls fail the most.

I've gotten past pulling thorns out as soon as I see them because most of the time that act is immediately followed by the whoooosh sound. That sound causes an immediate panic style scramble for the plug kit to stop it before the tire goes flat. I'll take the slow leak anyday over the flat, at least until I get to a flat spot with softer rocks to change the tire.

Last major vibration I had was caused by me not checking the oil enough. The dipstick was out of the tube about 1/4 inch and would vibrate roughly at each shift point. Push it back in correctly and presto no more noise.

Andy