question on torque converter






The TQ CNVTR is computer controlled and it will assist the TQ CNVTR. Remember that it is a lock up CNVTR w/computer actuation. But when you stab it it will ramp up and launch hard at the point where your TQ actually comes in (i.e. if your tq comes in at 3000 this is where it will engage)
Hope this helps! I used to run a 3500 stall in my 66 chevelle and had no problems at all around town in a Turbo 350 A3 trans!
Thanks,Matt
Now while it is nothing like the non lock up high stalls of old, it does make a differnce in how "mushy" if you will, it feels around town. I have a SY3500 with a relativly low STR ratio on a highly modded car, and I diffintly noticed the difference when I first changed it. My wife has 3000 stall with a high STR on a less modded car and she noticed it too.
We have a slightly inclined drive, approx. 150ft long and she has often commented on how the car seems to "stain" (her words) more when easing up the drive.
The question IMHO, will be in the trade off. When I asked her if she would rather go back to the stock converter (and give up her burnouts at 20mph) she said NO WAY!!
So in summary, while IMPO you will notice a little difference throttle response at off idle (and a little less mpg) the difference in performance will be night and day. It was, and would be again, the first mod I'd do to an auto.
)Get a 3200 or 3600 stall - you won't regret it - The only thing you might regret is not getting a BIG enough stall converter.
Two, I guarantee this "feeling" will "go away" in 2 or 3 test drives.
Three, the BASIC idea of a torque converter is to increase the rpms of the engine rapidly into the rpm range where your engine produces max torque (GO!). Consequently, when you increase the size of the the TC ie., 2600 to 3600, it will feel, at normal around town stop and go driving, like you have to depress the gas pedal furthur to get the 3600 moving than the 2600.
Fourth, BUT when you "hit" the gas the 3600 will pop you back into your seat like crazy and all that "feels soft" BS will, instantly, leave your mind and will be replaced by a very LARGE smile.
Fifth, if you do the tc bigger is usually consider better BUT that really depends on how far you want to go with other mods. You can't do mods piecemeal because you'll end up spending alot of $ in redundant labor and parts upgrade. Figure where you eventually want to get to then plan which mids to do TOGETHER and in what order. For instance , if you've still got 273 gears you should change them out when you do the TC - saves you labor costs ( even if you do it yourslf ) to do both at the same time.
Sixth, how big a TC and how big a set of gears ?? That's something only you can decide based on what you want to do with your car
( drag, road race, auto-x). You can check my sig for my specs but they don't mean $hit - they forfill what I wanted out of my car - period. Would I change some things if I could do it over ? Sure, but I am happy with the way it turned out - happy enonough to call it quits. Are they a good set of specs for you ? Do enough searches and you'll find out for yourself. But either way make a PLAN.
Seventh, you're heading down a slippery slope so I wish you all good luck.
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