4T65E bolted to a Honda? Check it out...

[bszopi]

Interesting thread I came across this morning...

http://www.honda-tech.com/zerothread?id=993365&page=1

[TheProfessor]

well atleastl part of their car will be decent
i hate hondas

[geoffinbc]

LOL 4T65E never breaks. Yea right. It has more problems than the 60E. But it is just a small shim that fails. It never has gear clutch or band failures.

[bszopi]

At first I was thinking "Don't these guys realize that they'll need some way of controlling it?", and then I did some more research...

http://www.powertraincontrolsolutions.com/modules.php?name=Content&pa=showpage&pid=4

$700 for a fully programmable, standalone controller that will work with the 65E. Kinda makes me interested in building up a 65E-HD...

[TheProfessor]

autos suck anyway get a 5 speed

[Manitcor]

the 65e is becoming more and more common as a great racing auto tranny, ive heard it has been used in a great many applications including Honda. I even heard somewhere that it may be put into hondas stock in the future.

With advances in auto transmission technology they have begun to rival manuals in effiency and power distrubution.

Recently ive become quite intrested in variable rate trannys

http://www.gm.com/automotive/gmpowertrain/transmissions/vti/index.htm

[geoffinbc]

autos suck anyway get a 5 speed

Not for drag racing. You set up the right stall converter and a proper shift algorithm and you will blow the living shit out of a manual. How many people do you see running a manual? Even in the top classes they run manuals BUT they are basically an auto tranny with a manual linkage to control the clutches and bands. You go down the track with no clutch between shifts. Ever herd of a poor mans Lenco? It is a GM powerglide auto with a clutch in front of it. So you rev it up, drop the clutch and the tranny does the rest. And top fuel well all they have is clutches. There are no gear ratios.

Basically banging gears takes time. Time is what makes you loose. Autos shift faster and harder. Thats why they are used.

[TheProfessor]

yeah but there is a power loss with an auto and they arent geared as high as a manual

[PlatinumZ34]

yeah but there is a power loss with an auto and they arent geared as high as a manual

But they can be geared to anything you want, that powerloss your talking about is almost non-existant on a well tuned racing transmission.
Manuals might be better for the street tuned car your driving where your running maybe a 14, hell even a 13 second 1/4. You get down to the 9 second cars, you have fun shifting through your gears not missing a shift. I'll tell you what ride in a car with nos, and then when they hit the spray try adjusting the radio, or leaning forward.

[Lyle's GTP]

Yeah, I believe when you look at the common conception of auto tranny's being less efficient, it is based totaly on your off-the-lot crusin' car. But consider that these trannys are designed and tuned to have output at low RPM not nessesarily the power band. Then they tune them to slip more to make the shifts smoother and less noticeable. Also, when they test the tranny's for fuel economy they have professionals doing the driving, they know exactly when to shift them what the best speeds are etc. Thus, allowing the actual numbers to be much different from what you and I can produce day-to-day. Where as, with an auto tranny the playing field is leveled signifigantly, because you basically push the pedal and go. The only difference being how hard you push it. Plus, consider that the tests may not even be based on the same rate of acceleration.

Just a little thought I gave this idea. Because now I'm thinking about building a 4T65E-HD and pairing it with that stand alone controller. It makes good sense now, because I would have to rig some way of controlling it in my car anyway.

Lyle

[geoffinbc]

yeah but there is a power loss with an auto and they arent geared as high as a manual

Power loss? Not any more, maybe back in the time before lock up converters. But with todays electronic transmissions there is no difference to speak of.

You wana talk about gears? Well gears can be made to whatever suits your needs. There is no reason why an auto trans cannot have the same gears as a manual one.

[TheProfessor]

well a 5 speed is more fun lol

[Lyle's GTP]

This much is true.

Lyle

[TheProfessor]

ha

[geoffinbc]

Oh yea I agree it is way more fun. I love driving my 5 speed and prefer it over an auto. But dont bash an auto, because there are alot of areas where it will school a manual.