power braking for more then 5 seconds

[JOE L]

Will power braking at less then the engine's maximum stall speed for more then 5 seconds cause damage to the transmission?

I say 5 seconds because that is the limit that every drag racing book recommends, but what they don't tell you is if the 5 second limit applies to power braking at just the maximum stall speed.

Also does anyone know what the maximum stall speed is for a 98 Honda Civic EX? I can't seem to find it in any service or owners manual.

[Miataracer]

why would you want to do something like that anyway? you don't have a drag car, you have a CIVIC... probably stock!

[Ace$nyper]

*bows* you sir just made my OK peep list for all that doesn't matter

[SilverY2KCivic]

If done say once a month. I wouldn't worry... But several times in a day, you better start saving RIGHT NOW for a new tranny. Torque launching as it's called is bad on several things. First and foremost it's the direct recipie to literally overheating and frying your torque converter unit inside the tranny. That's an expensive repair in itself. Sans a new tranny (rebuilt ones sell for $2500). Also it puts strain on your motor mounts because you engine wants to spin, but you're not allowing it too. All that building force has to be relieved somewhere. In a fairly stock car that break point will be the T/C in the tranny. If you have higher HP (like 100+ more) then it could damage you motor itself and bust it off the mounts. That happens in American Muscle cars at least. Stall speed for the stock tranny I've heard is 1800 RPMs, but I've held mine up to and even over 2000 RPMs before. I can still count on both hands how many times I've done this though. Stall speed is roughly a more realistic 2300 or so RPMs.

You really only have 2 options. Either don't do it, or invest in a 2800-3000 RPM stall speed upgrade torque converter from either Level10 or TCI. Artcarr also makes some good ones for Hondas I hear.

Also of note, it's not recomended to torque brake for more than 5-7 seconds per time it's done. And a tranny oil cooler won't prevent T/C overheating as it'l reach it's peak temperature overheat point well before the cooler even has time to react and begin cooling. Just an FYI there.

[Ace$nyper]

yea i've heard good things bout TCIs tourqe converters

[JOE L]

Originally Posted by SilverY2KCivic

If done say once a month. I wouldn't worry... But several times in a day, you better start saving RIGHT NOW for a new tranny. Torque launching as it's called is bad on several things. First and foremost it's the direct recipie to literally overheating and frying your torque converter unit inside the tranny. That's an expensive repair in itself. Sans a new tranny (rebuilt ones sell for $2500). Also it puts strain on your motor mounts because you engine wants to spin, but you're not allowing it too. All that building force has to be relieved somewhere. In a fairly stock car that break point will be the T/C in the tranny. If you have higher HP (like 100+ more) then it could damage you motor itself and bust it off the mounts. That happens in American Muscle cars at least. Stall speed for the stock tranny I've heard is 1800 RPMs, but I've held mine up to and even over 2000 RPMs before. I can still count on both hands how many times I've done this though. Stall speed is roughly a more realistic 2300 or so RPMs.

You really only have 2 options. Either don't do it, or invest in a 2800-3000 RPM stall speed upgrade torque converter from either Level10 or TCI. Artcarr also makes some good ones for Hondas I hear.



Also of note, it's not recomended to torque brake for more than 5-7 seconds per time it's done. And a tranny oil cooler won't prevent T/C overheating as it'l reach it's peak temperature overheat point well before the cooler even has time to react and begin cooling. Just an FYI there.

thanks for the advice man, you rule!