So let me get this straight. He makes claims that his kit is better than other. I question this, and you are perfectly ok that he can't support a single claim with any sort of data, but I am the bad guy for questioning him? I assume you are the same guy running a 'Tornado' and have magnets to get better mileage. I must be missing something, but not shocked because as the saying goes - A fool and his money are quickly parted.
My position is unchanged. Show me proof. My question is still out there to Joe. Are you going to offer a refund to everyone if testing shows that your claims are unfounded?
The only claims he makes in the actual literature for the kit are; improved coolant flow to the rear cylinders.
Well, in this case their is precedent for the idea of equal water distribution from the water pump across all the cylinders.
Look no further than the inline 6 motors of the 30's and 40's.
They had a distribution tube inside the block that many old car guys, found out the hard way, actually made a difference between a running engine and one that would overheat.
Those old tubes would eventually rust out and there came a market for improved Brass tubes to replace them.
Anyhow, I haven't done the experiment yet of bypassing my kit to see if it makes a difference.
I would like to, but I am struggling with exactly how I would measure the effect, if any.
Maybe you are right Sintorion.
I certainly don't have any data to offer at the moment.
I will have the day off on Monday.
Maybe I will bypass the kit for you by linking the return hoses from the right to left head and looping the hose at the crossover to itself.
For data, I can measure oil pressure and crossover coolant temperature both with a quality bourbon style aftermarket gauge and an electronic thermometer.
If I had a performance meter, I would use that.
I may try to use a stop watch to see if I can find a difference in acceleration but I realize that could be very small and subject to the error of my ability to record start and stop times as well as my bias.
Obviously I WANT the kit to do something.
I paid for it and bothered to take the time to install it.
If it does nothing, I think I can handle that.
Have bought many things whose value were questionable based of "feelings" and later regretted it but I never ask for a refund.
Of course; If someone was claiming a cure for cancer or liberals, and that was fake, I might respond differently.
One thing is certain; the kit contains hot coolant during operation.
The questions are;
Is that water moving from the rear of the heads to the crossover through the kit?
How much water is moving through the kit?
(I might consider capping the crossover line and measuring, at least at idle, the flow of cold coolant from the back of the heads through the kit, into a bucket over a brief period.)
Does that significantly affect cooling to the rear of the engine?
(Maybe a quantitative approach to exactly how much coolant is being transported would offer a calculable way to figure benefits?)
Does that "improvement" make a measurable difference in performance?
As for longevity improvements; I really don't see a way to measure those, if they exist.
Of course, I can do all this and you still may not accept the result, or I may not accept the result.
Personally I have nothing to gain.
I can just leave the kit in place, drive down the road, and be happy in my suspended disbelief that I have done "something" good for my 6.2 engine.
But.. I like a challenge.
Particularly a mechanical challenge.
It may be a waste of time, but I will see what I can do.