YACT- Q? for the gearheads out there.

[ondarkness]

Is there a modification that can be done to a -civic D-series- transmission to have it accept high(er) rev shifting without worrying about grinding gears?
Not for racing, as it's a d-series... but It's the 3rd tranny that will be in the car in its' 8 years.

 

[Eli]

Uh.. lol

How the hell does someone go through 3 manual transmissions in 8 years? Either theres a serious design defect, or [you] don't know how to drive a stick.

 

[ondarkness]

Originally posted by: Eli
Uh.. lol

How the hell does someone go through 3 manual transmissions in 8 years? Either theres a serious design defect, or [you] don't know how to drive a stick.

yea...
the 1st one, I raced the heck out of it.
4 crashes later, i got a used one off craigslist. (and stopped driving like an moron...)
3 years later 2nd gear is starting to grind a little.

now I'm just wondering if I can do anything to the tranny b4 installation to shift to 2nd gear at higher RPMS.

 

[Eli]

Originally posted by: ondarkness

Originally posted by: Eli
Uh.. lol

How the hell does someone go through 3 manual transmissions in 8 years? Either theres a serious design defect, or [you] don't know how to drive a stick.

yea...
the 1st one, I raced the heck out of it.
4 crashes later, i got a used one off craigslist. (and stopped driving like an moron...)
3 years later 2nd gear is starting to grind a little.

now I'm just wondering if I can do anything to the tranny b4 installation to shift to 2nd gear at higher RPMS.

You could probably pay someone a lot of money to custom fabricate some beefier synchros for your transmission, but I doubt that is a realistic option.. If they already exist in the aftermarket, it may not cost too much to have them put in, if the transmission is already out of the car.

Otherwise, there isn't anything you can do... You're wearing out your synchros by not shifting "properly".

Hint: There's no need to redline each gear. If you're really insistant on racing, you only really need to rev to the point where the next gear will be in the powerband.

Although, given that you're in a Honda.. that's probably about 6,000RPM anyway.. Oh well.

 

[jagec]

Originally posted by: ondarkness

Originally posted by: Eli
Uh.. lol

How the hell does someone go through 3 manual transmissions in 8 years? Either theres a serious design defect, or [you] don't know how to drive a stick.

yea...
the 1st one, I raced the heck out of it.
4 crashes later, i got a used one off craigslist. (and stopped driving like an moron...)
3 years later 2nd gear is starting to grind a little.

now I'm just wondering if I can do anything to the tranny b4 installation to shift to 2nd gear at higher RPMS.

How on earth are you shifting? My car doesn't even grind when I shift at redline. You ARE using the clutch, yes?

 

[thomsbrain]

learn to drive and your transmissions won't break, it's as simple as that. it's not like its breaking from the massive torque load that your civic engine is pounding out. if you are rev-matching, you'll go faster and break less sh!t. but i think it's pretty clear you're just jamming that lever around willy-nilly, so what do you expect? fifth gear raced their honda with its bone-stock drivetrain in a 24-hour endurance race, and had no problems with it whatsoever. so don't give us the "i race it" excuse.

 

[Zenmervolt]

The transmission doesn't care one iota what RPM you shift at. Whoever told you that high-RPM shifting is causing the problem is a moron.

Synchroes wear prematurely for a few resons, typically only two: Dragging clutch that is not releasing fully (You need to put the clutch pedal to the floor each and every time you shift) or speed-shifting (pulling the lever into the next gear too quickly). The fact that you are only noticing this in your second gear synchro indicates that the problem is the latter, as a dragging clutch would wear all synchroes, while typically it is second that receives the most speed-shifting abuse.

To sum up, the problem is that you are speed-shifting. There is no problem with the transmission. Quit trying to slam the lever into the next gear.

ZV

 

[Viperoni]

Agree with Zemmervolt.

I've blown 2 transmission in the last year, but that's because saturn diff pins are notorious for popping out during one tire fires.

edit: I've welded the diff pin in place on the new tranny so this doesn't happen again.

 

[JohnCU]

Originally posted by: Zenmervolt
The transmission doesn't care one iota what RPM you shift at. Whoever told you that high-RPM shifting is causing the problem is a moron.

Synchroes wear prematurely for a few resons, typically only two: Dragging clutch that is not releasing fully (You need to put the clutch pedal to the floor each and every time you shift) or speed-shifting (pulling the lever into the next gear too quickly). The fact that you are only noticing this in your second gear synchro indicates that the problem is the latter, as a dragging clutch would wear all synchroes, while typically it is second that receives the most speed-shifting abuse.

To sum up, the problem is that you are speed-shifting. There is no problem with the transmission. Quit trying to slam the lever into the next gear.

ZV

why did my transmission die after it tried to shift while i was passing someone (high RPM)? not being sarcastic, just curious. automatic, not manual.

 

[Zenmervolt]

Originally posted by: JohnCU

Originally posted by: Zenmervolt
The transmission doesn't care one iota what RPM you shift at. Whoever told you that high-RPM shifting is causing the problem is a moron.

Synchroes wear prematurely for a few resons, typically only two: Dragging clutch that is not releasing fully (You need to put the clutch pedal to the floor each and every time you shift) or speed-shifting (pulling the lever into the next gear too quickly). The fact that you are only noticing this in your second gear synchro indicates that the problem is the latter, as a dragging clutch would wear all synchroes, while typically it is second that receives the most speed-shifting abuse.

To sum up, the problem is that you are speed-shifting. There is no problem with the transmission. Quit trying to slam the lever into the next gear.

ZV

why did my transmission die after it tried to shift while i was passing someone (high RPM)? not being sarcastic, just curious. automatic, not manual.

Same reason actually. A full throttle upshift on an automatic is done faster and slams into gear with more force.

A full throttle (i.e. high-RPM) shift in an automatic is one of the highest stress times for a transmission, so this is when already-worn parts are most likely to break.

ZV