Rep Power: 281

Now I have searched this topic and I have posted this before without my questions being answered.
I know barney had like 300 whp with stock transmission, but he never responded to my Qs.
I know that the life of a transmission has to do with the driver, and I know people on here say you cannot go past the 300 mark with out it breaking.
Are there any upgrades besides the clutch?
I mean do places offer custom transmissions, if so how much do they cost?
I always wondered what people did to their trannies in mags, like a b16 with 400+ whp, or other engines that go from the low hundred whp to well over 300?
I know that turboengnr is planning for some serious power around 4-500 whp, and I think he is going to use a stock tranny, and just plans on putting another one in whent hat one goes, is another option?
What usually happens when the tranny goes, what is the weak link?

 
Rep Power: 360

clutch is very weak (obviously). Luckily we dont have an rsx-s so the actual gears are good. synchros are weak on D17 trannies though, so watch for them.
upgrades: I have no idea. But hopefully people can get to you who HAVE a manual! (im auto )

 
Rep Power: 309

BUMP BUMP BUMP!

ive been hoping on answers to this question for a while but havent heard any conclusions so im reviving this in hopes of answers. (i searched before opening a thread)

 
Rep Power: 285

if you want it to last with big power, do not shift hard, and do not use slicks.

As long as you arent getting much traction, its not putting as much stress on the tranny.

From what i have found, the input shaft bearing is the weakest link in the tranny. After that is the case itself. Once you get around the plastic cage inside the input shaft bearing breaking, you will find that the webbing that reinforces the housing will start to crack around the differential and the input shaft. So then that will have to be reinforced even more. Once past that, i dont know. I would assume the gears.

I am trying to find a replacement for our stock input shaft bearing. I am tired of replacing these damn things. The honda-engineer that decided to put a plastic cage inside the bearings instead of using a metal one needs to be shot.

So far i have found a bearing with the same ID, but a slightly larger OD. So the tranny case would have to be milled out a little in order for this bearing to be used. I am still trying to find one that is a direct replacement.

 
Rep Power: 309

ahhh very nice, thank you. i know exactly what you mean too. that is pretty freakin stupid that theyve got plastic ball cages. how much hp are you running (to the wheels or estimated at the crank). and did you upgrade axles?


sidenote, so youve got tons of hp and you really dont shift hard and punch the gas or use slicks to grab the ground?

 
Rep Power: 309

oh and what did you feel that you know its broken again? i would assume vibration in gear and rough driving.

anyone else have problems or opinions.

 
Rep Power: 327

I get a kick when people say it cant do this or it cant do that and they put a magical number on it like said above of it wont hold past 300hp is such a joke. Like said above, how you drive it will have a huge impact on how long it will last. Im sure that IF a d17 could put out say 500 whp the tranny wouldnt blow on its first run down the track...Could it blow yes, will it blow eventually because of the extra HP damn skippy. IMO i would just buy some spare back ups if you fear that it will blow sooner than later. ........ You gotta PAY ta PLAY! And unless you just won hat 340million last week im sure you wont be able to aford a custom tranny!

 
Rep Power: 285

ive run 18 psi and didnt shift hard. I was running 11 daily, and didnt dhift hard. And when i would be rolling and punch it, the tires would end up in smoke when the boost came on.

And i know the input shaft bearing in my current tranny is bad because it makes the same sound as a throwout bearing, except that it goes away when you push in the clutch (which is the exact opposite of the throwout bearing). Also, it makes the noise while in gear and accellerating, and you can hear the audible frequency of it change with RPM.

 
Rep Power: 360

can someone explain a throwout bearing on manuals since I have an auto and have wondered this forever and have been too lazy to look myself. thanks in advance

 
Rep Power: 285

well, when you push in the clutch, the slave cylinder presses on the clutch fork, which pushes the throwout bearing against the clutch. Since the clutch is spinning, and the clutch fork is not, there must be a bearing inbetween them, or else you would tear them apart. Thus the need for the throwout bearing.

i hope that is a simple enough explanation.

 
Rep Power: 360

wow i feel stupid. thats one of the easiest things that i have ever put off learning!

today in school my fellow engineering student peers designed a simple maglev train with me and i couldnt get this on my own... wow.

btw i repped u. thanks!

 
Rep Power: 309

tfnaaf, you always just tell people they dont have the money lol. anyways i can get aftermarket parts and oem parts for real cheap plus transmission labor really cheap plus i know about them enough to take them apart at this point and in a month or so ill be able to rebuild my tranny most likely. so im interested in knowing if its something i can do or what.
so as far as i can see, i can go up to 300 hp if i want to really enjoy it. and yes there are certain numbers, if you baby your car obviously you can surpass those numbers but there is always a point something will just snap and i am willing to believe that around 300hp would break **** in our tranny when you just gun it.

 
Rep Power: 285

thanks diskreet!

I did a maglev train once as a science project. I used stationary magnets on the train and a series of relays with impact switches to swap the polarity of the electro magnets that made up the track. It was pretty cool, besides the fact that it kept accellerating the whole time.... It wouldnt slow down until you physically cut the power.

 
Rep Power: 360

thats awesome. we designed it to have stationary magnets also on the train and electromagnets on the track.
but we are investigating into something that isnt a typical maglev, has to do with coils of wire and magnets on 2 sides of the train. forget what its called.

 
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Sorry not trying to tell you that you cant aford it, but im thinking its prolly out of 99% of our price range to have a custom trans made. But as far as cryo treatment i think it would possibly be obtainable for most. And sorry if i may have implied that you or anyone else here isn't capable of doing the work either. Im just think of the practibility of things

http://zr1parts.netfirms.com/CRYOGENIC/CRYO.html



http://www.onecryo.com/onecryo/motorsport-imssept98.htm

 
Rep Power: 285

ive heard of cryo treatments, but i havent found any solid research backing up their claims. I understand their approach and methods, but still skeptical about what all they say it does.

 
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my transmission died on me about 7 months after being boosted, running 6-8lbs. The clutch i had ACT stage 2, the synchros in 2nd and 5th went out and the throw out bearing was shot. So i scrapped it and got a new one, no problems yet. I noticed our engines are pretty strong, but the transmission is the weakest link...it doesnt like being beat up

 
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hmmm, anyone know if any previous D-series (or any honda motors) have a stronger tranny that would work with our motor and car.

 
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just dont ever do an RSX tranny swap, unless you like 5 or 6 revearse gears.

 
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damnit. i have gone over this before...........

D16 trannies will bolt up. you need to build a custom post-style shifter linkage and shifter.

Damn

 
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sorry turbo lol. not trying to annoy you more but which d16 tranny would be the strongest? and whats the post-style shifter linkage your talking about?

 
Rep Power: 285

im sorry about that.

I just got through with 2 MRI's today, and i had an 8" needle shoved through my chest, into the back of my left shoulder joint.

Ive just been testy all day. Please dont take offence to it.

I dont know if they are any stronger. But i havent had a D16 tranny with the input shaft bearing problem, so that part may be stronger.

 
Rep Power: 309

holy **** dude that sux did it help your shoulder or was it just part of the procedure?
anyways, yea ill look into those trannys thanks

 
Rep Power: 285

nope. definately did not help. It was just to inject some dye for the contrast on the second MRI. My shoulder hurts more now than it has in quite a while.