Not sure what you mean by that - lots of good information in that thread. That is the only thread I have found on mud that posts any flow and pressure numbers for the 80 power steering pump. The moral of that thread is that there are no big gains to be had by modifying the stock pump, and any modification to the pump has a downside. Another great piece of info from that thread is that heatsink coolers suck. Joey was selling a kit, so everyone though they were a top notch engineered solution, when in reality they drop around 10 degrees of fluid temp at best, and to get that you are looking at 100+ degree differential between the fluid temp and ambient air temp. Mud is on the internet, take anything you read on the internet with a grain of salt but remember the people who speak the loudest often have the least to say. I would rather read a thread by someone who tried and failed than someone who says their mods and or product work great, but have no data whatsoever to back it up. Lots more of that on mud than people who admit they failed and gave up. Definitely would like to have seen some detail on what pump modifications he tried, but if you know much about hydraulic systems, there are very limited areas that could provide gains without creating excessive heat, cavitation or risk a catastrophic failure of hard parts. Also, sounds like his intent was to sell a product, so he would be a fool to give that info up.
I can confidently say I have more knowlege of and experience with toyota trucks and engineering in general than all but a few people on mud. I dont start many threads or comment much because I dont have the time or desire to explain every detail of my knowlege, experience, education and all avenues explored and why they do or do not work. The few times I have, it always ends with me having to argue with someone who knows far less than me because of statments just like yours above - so I choose to not waste my time. I could dispute every observation you made in your post - because all of that is only true if you gave up and accept that your truck does not drive as good as it did stock. But its not worth my time, probably was not worth the original poster of that thread's time either.
The last line you posted has some truth, but is also incomplete. It would be much more valuable advise If you rephreased it to "To ensure success when adding hydraulic ram assist steering to an 80 series with a stock pump, ensure the pump is operating at full capacity and limit ram piston diameter to 1.5" to minimize slowing of steering response due to the added flow capacity needed to operate the ram. Be aware that when using a single ended ram, there will be more delay in one direction of steering travel than the other due to the shaft displacing fluid volume on one side of the piston in the ram. Ensure an adequately sized cooler is used to keep fluid temperature at or below 140f and that the fluid reservoir is of sufficient capactity to account for fluid expansion when the system is under heavy use".
