You know Dave's converter is a 245 mm converter and you also know that Full Throttle's RevolutionX is a 245 mm converter. This thread is about the RevolutionX. It's disingenuous of you to try and make us believe that they are different and that because of this,one couldn't be a copy of the other. I would also hope that you would be aware of the fact that what some call a 9 inch converter is also a 245 mm converter with a 9" stator.
Disingenuous at best.
No one has ever used this particular pump with its negative fin angle. Dave came up with this idea and now we see it in the RevolutionX. The only other converter that I've seen this on is from PRNDDL Performance Transmissions which is 26 miles down the road from Full Throttle.
I don't think there are a hand full of people who can understand and duplicate all of the theory and engineering that goes into Daves converters.
I don't have a RevolutionX,but I would bet that it gets the job done. Bison likes the ones he has tested.
It would have been nice if you would have also acknowledged the testimony of nightrain in post #25 of this thread.
You certainly do have to love some of the things you read on hear.
No actually I don't know what core either of them are using. I just saw where FTSS was claimed to be a 9" which there are cores that are out there to build a 9" with and could be built similar to the old 9" Art Carr's.
No one can claim FTSS has copied Dave's or vice versa unless they know which one came 1st and what the exact combination of pieces inside are made of. There are so many variations of the 245mm and every single converter builder in the world has used the 245mm so just because you use the same core doesn't mean it's a copy. Here is sonnax's stall chart for your reference
http://www.sonnax.com/pdfs/3-stall-speed-chart This is the main reason why many people prefer the 245mm core. Parts are the cheapest you can find and picking a stall is like walking a buffet line. They don't have to know anything about how a converter works, all they have to know is what part to buy to change the stall speed and how to read a chart. As you can see you can use a wide variation of pieces to achieve similar stall speeds. There are easily over 19 variations of the 245mm using just the sonnax pieces, even more if you do some custom stator work. The size of the stator doesn't dictate the size of the converter but anyone is free to call it whatever they want. If I put a 8" stator in a 10" converter I would call it a 10". Most refer to the GM245mm as a 9.5 for obvious reasons.......it's 9.646 inches wide. I call my GM245mm a 10" because I have other converters that were using the 9.5 designation.
I can promise you a negative fin angle pump has been used before, it's very common in nitrous applications. The reason you don't see it in a lot of turbo cars is because it's not known for it's coupling ability in low rpm apps however with the right stator you can tighten that up. I prefer a positive fin angle myself.
I did not acknowledge nighttrain's post because there's obviously more to the story. I'm glad his issue was resolved. He had a trans rebuilt so obviously something was wrong with the trans causing those issues. If you think there's really that much difference in the 2 converters performance wise then I'm wiling to put some skin in the game. Send me your 3021 and I'll put it in a local car that runs 11.0's. If it picks up 7mph I'll send you the converter back along with whatever amount you paid for it. You get a free converter out of the deal. If it doesn't pick it up, you pay me the purchase price of your converter for my time and I still send your converter back. Sounds like a really safe bet on your part??
The fact is all 3 converters have proven to work well. Some have had issues, some have nothing but gains. There's enough converter business out there for everyone which is why there are so many companies who sell them.