How efficient is the stock converter compared to a yank truck thruster 3000. I have been to the yank website and read all of the faq's and technical discussions. I still dont understand what they fully do. I know that they help off of the line but how about mid and top end performance compared to the stock converter. I want to know all the info you can give about them. what do you like? what do you dislike? where did it help? where did it hurt? anything. Do you think that I will benefit over a converter or a cam and springs better? Here are my mods. 02 5.3, K&n fipk, asm headers, magnaflow exhaust 3 in 2.5 out, no cats, 4.10 gears, built transmission to rapter specs with all billet servo's, cal-tracs, asp underdrive crank pulley, ls1 edit no torque management. right now the truck will roast the nitto 295/45/18 through first and second with no stalling, I need some drag radials, but anyway what do you think I will benefit most from either (which stall) or (which cam) thanks.

 

its very hard to actually understand what a stall does. all i know is that on the launch, it lets u go up to a higher rpm without breaking the tires loose or moving the truck. therefore the launch is more powerful, but i guess its useless if u dont have traction? second, it makes the rpms not drop so much when u shift, so it keeps them up in the powerband. yank 3000 seems to be the favored stall, alot of people with got them and had good results. u can gain up to half a second improvement. defenently get the stall before the cam, cuz ur gonna lose low end with the cam, and ull need the stall. hope this helps

 

I've run a Yank 3000 for about a year now and the only thing I don't like about it is that it rolls backwards on a hill unless you give it a little gas{no big deal}.What it does is put the engine in the powerband sooner both on the launch and on shifts,which really helps with our widely spaced gear ratios.The Yank 3000 gives full towing capability and good road manners.If you don't tow any thing,have a light weight truck or want to run a big cam you might consider the Yank 3200.

 

thanks for the reply's, keep the info coming. from reading the stuff on the yank site, and from looking at some of oxidizers dyno pulls on his website (where he has converter locked) I was under the impression that the aftermarket torque converter allowed more of the motor's torque to get through to the rear wheels than the stock converter allowes for at the same rpm(look at the dynos on yanks site, with the addition of just a torque converter the torque was up on most vehicles by atleast 25-35 lbs more that the dyno with the stock converter) someone correct me if Im wrong or explain this. thanks

 

ttt

 

TTT I would like to know actual power output differences, stock converter vs. higher stall. Thanks

 

Hey man I was reading the Yank website www.converter.cc and it said the Yank 3000 is 98.6% efficient (or something like that) That means if you 5.3 is putting out 285 hp at the flywheel, is puts out 98.6% of that to the input shaft. I bet that is close to or better than the stock converter. As soon as I find a new Yank 3000 for less than $700 I am buying it.

 

Yeah, thats why Im trying to figure out how efficient the stock converter is. Anyone?

 

well, I called yank today and they said that the stock converter was about 93%-96% efficient, compared to theirs which run around 97%-98%. makes you wonder where all of that 35lbs of torque come from on those test vehicles, because lets say most of us with the bolt ons are putting 335-340 lbs of torque out at the crank, that extra (we will say 2%) only equates to 6.8 more lbs of torque to me. so am I wrong or do I smell shizit.