I am presently changing my two speed powerglide tranny to a TH350 in my 65 el camino with a 327/325hp engine. The new torque converter is suppose to give me 1,000 rpm more stall speed than stock, I just want to know what that means. and what can I expect from this new setup?? thanks in advance








1965 el camino 327/325
1980 camaro berlinetta 5.0 L
1997 Geo Tracker lol

What brand, size, etc?

The higer stall allows your engine to rev higher in RPM's and allow your engine to remain in its "power band" But higher stall converters usually equate to higher heat in the tranny and you may need to install an aftermarket cooler if you haven/t already done so.

Is that a three speed TH350 that you're changing to?

yes it is a three speed and the converter is a TCI 11" break a way model tci-2400900

well it would be a good idea to add tranny cooler. route it after the fluid goes thru the tranny cooler first. most folks i have noticed totally ignore there built in tranny cooler in the radiator and just bypass it all together because they have new tranny cooler.

so send the tranny fluid thru your radiators tranny cooler then send it thru your new cooler you just bought.

1000 more then stock........well most stock tranny convertors are about 1800 brake stall. but i have seen some truck convertors down at 1600 or so.

so this means that your stall should be about 2600 to 2800 rpms. i have not ran the 11" tci unit just the 10" unit. so its hard to say what range the 11" convertor tends to stall at. i would have to guess the 11" tci unit is for around a 2500 brake stall.

which it really depends on your engine, tranny , weight, gears and all sort of stuff. for what it will stall at. 2500 brake stall, then you have the flash stall.........

the bottom line is the convertor will "slip" high before it engages to move the car at full throttle. you will notice the car will take more gas to move it and if you find yourself trying to go up a driveway that is steep or some other tougher path the car will take more gas pedal to move it and the rpms will be higher then what you was use to before the swap.

the convertor allows your engine to get in the "power range" for which your engine was built for sooner.

yes it is a three speed and the converter is a TCI 11" break a way model tci-2400900


Breakaway®
The first step into serious high performance, the Breakaway® is a great torque converter for moderately modified street machines and weekend racers also used as daily drivers. It provides approximately 2400 to 2600 rpm flash stall with out negatively affecting part throttle driving. Designed for efficiency at highway cruising speeds and to launch hard at wide open throttle, the Breakaway® is a fantastic all-around torque converter.
http://www.tciauto.com/Products/Converters/241300.gif

A good street/strip converter will act "tight' (i.e. stock) during normal driving, but will flash up as necessary.

I have a 3000 stall converter in my Chevelle, powerbrakes at 2400 or so, and flashes to 3000 once I let off the brake. It is a Transmission Specialties unit. I have another in the wings, hd unit, for the next build. I also have their converter in my truck. I think they are a great converter for the money.

If your engine still has that stock 325hp cam it should be fine.

I had that TCI 11in Break Away converter in my ElCamino.TH-350 with a 3.42 gear and 26tall slicks.The 10:1 355ci engine made approx 375 Hp.
I didn't have a playback tach so from my observations on launch it would only flash to 2400 rpm.

Driving in high gear I'd nail it and it would only flash to 2400rpm.
Around town it was like a normal converter.It was a bit to tight for my liking and I only had a small HYD cam (222 278 467 110).
If I would powerbreake it up it would start to spin at 2400 rpm.
I'll never use one again.Well maybe with an RV cam, but that's it.