and why did you promise Adam a 731, and not give him a 731, but a cam that was "close".? Once again you say you are gonna do one thing, which is pretty simple, and can't even do that right.

Even though it was not what you promised, you gave it free. Why would you give away something free, if that was not your claimed cause of the problem?

Just so you know the next time, those are not stock Merc exhaust

At what degree was it 76?

Ding, ding, ding, ding. We have a winner.

You'd think he'd learn this by now.

I don't know if you saw this some years back, but he cammed a set of engine's with dry (to the very end of the tailpipe tips - as they normally are) Stellings, and they reverted. Yup, who would think that was possible ? But, he did it. And yes, I got pulled into that fiasco to to help.

That is the most blatantly inaccurate remark on this entire thread. On every engine we consider multiple compound variables, including bi-directional wave motion and pressure excursions, from the intake tract to the atmospheric end of the exhaust tract, that factor into the propensity toward water ingestion. Then you recognize and mitigate the factors you can alter, adjust the valve events accordingly, while building a margin of safety. Only then can you proceed with generating a valve path.

At that juncture you consult with the client, advising them that the components they will be utilizing (if they are prone to supporting reversion) will detract from the targeted specific output by a factor of X. That provides the end user with two valuable tools, accurate information and the opportunity to make an informed decision. There is every opportunity to exert “control over what happens with used wet exhaust. “

Bob

I believe cstraub is at the Library thumbing through a Dictionary and a Thesaurus franticly trying to figure out what Bob just said!!

I just put a Rosetta Stone tape in my cassette player to try and translate his post into words I can understand! Lmao. Just kidding Bob, good post, glad you chimed in.

and not surprisingly he is absent from this thread.

Soo I just want to chime in . Mike told me about the 731 cam and he got kinda crucified but I'm seeing I guess that it is a good off the shelf cam?? While everyone's fired up here I'm just curious what is the best centerline to go with on a cam to not have reversion? And since you guys have built engines should I do my 502 block to 540 or just get a dart. I will be running about 5-7 pounds of boost and now that my butt stopped hurting from buying the crank ,rods and pistons I want it to be ok.......

Soo, you bought a 502 rotator and just got over the cost but you're wondering about going to 540?