Torque converter
- Thread starter Dylan88
- Start date
Was there a recommendation on the cam card? How much does the car weigh? What's the car's purpose? Why does the current converter disappoint you?
Do you happen to know how much vacuum it's pulling when this happens? And is the 227/224 the advertised duration or @ 0.050?
The car's use and your driving style are also factors when choosing a converter, as is the power to weight ratio. A light car doesn't need as high of a stall, and going with one over 3k can be problematic in stop & go traffic. They're great on the freeway though.
The car's use and your driving style are also factors when choosing a converter, as is the power to weight ratio. A light car doesn't need as high of a stall, and going with one over 3k can be problematic in stop & go traffic. They're great on the freeway though.
Yank, Circle D, and Pro Torque are all good converter companies to deal with. They make quality products and stand behind them. Be sure to discuss STR (stall/torque ratio) with them (or whoever) to guarantee you get a unit that performs the way you like. You can have a 4k stall converter that's good in stop/go traffic but flashes to 4k if you have a high STR. The trade off is the converter loosens up in the upper RPMs. No bueno for high RPM cruising, but these work very well with 6 speed autos. A low STR will get you a sloppy loose converter down low but it'll slip less up high- this may mean keeping the lead in a race or just cooler converter and fluid temps on the highway. It also cures surging through the brakes. A car driven mostly in town may be better suited to a converter with a high STR to help it get up and go without having to mash the pedal.
In other words, it's possible that your stall is perfect but the STR is off. However, LS engines do love to rev and most F Body guys are running a Yank in the neighborhood of 3500-4000, with an STR in the low 2s.
In other words, it's possible that your stall is perfect but the STR is off. However, LS engines do love to rev and most F Body guys are running a Yank in the neighborhood of 3500-4000, with an STR in the low 2s.
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