What Converter is everyone running??
My understanding is the 8" stuff wont be built to stall at the low point the OP is asking for.
If I were in the market for a 4200+stall track only unit I would probably call ATI for an 8", but not for a street car where you want lockup and like I said I am pretty sure they don't make 8" in stalls down below 4000.
If I were in the market for a 4200+stall track only unit I would probably call ATI for an 8", but not for a street car where you want lockup and like I said I am pretty sure they don't make 8" in stalls down below 4000.
I'm getting an 8" 5000 stall built right now. It's going to be around $950. I'm getting mine made locally from competitiontransmission.com . They are 3 miles from me. The owner explained to me exactly how some of these so-called big-name companies get their 10"+up converters to stall high. He said they go negative on the fin angle which is the WRONG way to do it. He says you lose top-end efficiency and you lose strength. He said it's way easier to do it that way though, which is why some companies can sell you a brand new converter on ebay for $400-$500 which stalls at 4000rpm. My local guy welds every fin and then adjusts the stator to give the car the correct stall. Everything is welded and brazed. He also told me the weight difference between an 8" and a 10" is quite a lot, which gives the car the "flywheel effect", ie it will rev a little quicker. Kinda like going from a heavy flywheel to a aluminum one.
That said... get an ebay unit. It stalls to 4500 at WOT, I can cruise it unlocked at 1500 rpm, it has 99% efficiency on the top end, the lockup clutch is rated to 1200 hp, and it was only $300
My understanding is the 8" stuff wont be built to stall at the low point the OP is asking for.
If I were in the market for a 4200+stall track only unit I would probably call ATI for an 8", but not for a street car where you want lockup and like I said I am pretty sure they don't make 8" in stalls down below 4000.
If I were in the market for a 4200+stall track only unit I would probably call ATI for an 8", but not for a street car where you want lockup and like I said I am pretty sure they don't make 8" in stalls down below 4000.
no. from what i understand, lock up converters must be built from an existing lockup gm core, which only goes down to about 9" i think? I wouldn't try to get a 9" converter to go more than 4500 like joelster said, the efficiency goes out the window. Plus, if you really want to go fast, you don't wanna a heavy lockup in your converter anyways.
no. from what i understand, lock up converters must be built from an existing lockup gm core, which only goes down to about 9" i think? I wouldn't try to get a 9" converter to go more than 4500 like joelster said, the efficiency goes out the window. Plus, if you really want to go fast, you don't wanna a heavy lockup in your converter anyways.
still running good tho. Im just waiting for all of it to break so i can get a turbo 350 or 400 
