5 speed vs. 6 speed
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Originally Posted by LetItBreath
I've seen your posts before and by no means was I under the impression that you dont know how to search. But I do know that the answers to your questions can certainly be found on this web site, with the exception of "why would they put a weaker tranny in the racing model?" In answer to that question, Mr. Maximum Boost, 6 speed's are indeed more useful for long road course racing where you may encounter long straights. Its the principal of having more gears being more suited for racing(road racing). 
knew this and basically said "make the 6 speed happen". So their engineers made 6 gears fit in a case about the same size resulting in some weaker gears and less beefy syncros.
knew this and basically said "make the 6 speed happen". So their engineers made 6 gears fit in a case about the same size resulting in some weaker gears and less beefy syncros.O.K., thats cool, I was not trying to be sarcatic. I am just trying to figure out why or what makes it "weaker." I think that John@TRE explains it the best. I am still surprised that
, or their trany supplier, would not at least try to make the smaller gears out of a stronger material. For all I know they do, but, as John states, the width does make a lot of difference on how much power you can put through the six speed. I would be nice to take a blown six speed and a blown five speed and some of the gears to a lab to see what they are made of.
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How much HP was being put through that 6 speed? Any idea, or was it just a bad driver.
It is not a matter of a weaker trans, it is a matter of ROOM in a trans case for XX mm worth of gears. 4th gear is the first to break on the 6sp.
It is not a matter of a weaker trans, it is a matter of ROOM in a trans case for XX mm worth of gears. 4th gear is the first to break on the 6sp.
ok the 6 speed has 1 qt less of oil therefore it has less fluid to dissapate heat+ the thinner gears= the hotter metal get the softer it is and the easier it breaks and also the basic fact also is that the space between the gears is smaller also limiting the amount of oil passing by cuasing further overheating...im getting the se myself after putting a good 8 hours of searching a reading and im just going to buy some used bilsteins off a member for like 500 bucks and direct swap them out.....
Last edited by EVOIXMR8916; Sep 3, 2006 at 11:06 PM.
and if you want smooth shifting you can also buy the mr trany oil and from what i read is a noticable differance...not sure about the teflon cables but im sure there is swaps for those...get a short shifter kit and youll never look back at the 3-4 k you saved and all the problems you avoided...
heres something else to thing about mitsu made the engine so why whould you doubt their 5speed that they also made and revised just for the 06 and the aisin 6speed is not reputable...they made the abs for the toyota prius and i drive the prius and it is the scariest abs in the world...i mean i swear you can count off how many time abs unlocks and pauses the brakes and on our honda, all you hear is a crazy *** abs pump going off and actually holding the road more the skiding....aisin is not the greatest company...IMO
I'm still of the opinion that the almost quart less of tranny fluid in the 6 speed increases the heat problems. Obviously, the gears in 4-6 are smaller, but I think most of the failures have been on the track...and on the track, heat kills.
Originally Posted by atlvalet
Didn't I say "almost" one quart? Don't most people consider .7 quarts "almost" 1? Are you trying to be pedantic?
Originally Posted by EVOIXMR8916
ok the 6 speed has 1 qt less of oil therefore it has less fluid to dissapate heat+ the thinner gears= the hotter metal get the softer it is and the easier it breaks and also the basic fact also is that the space between the gears is smaller also limiting the amount of oil passing by cuasing further overheating...im getting the se myself after putting a good 8 hours of searching a reading and im just going to buy some used bilsteins off a member for like 500 bucks and direct swap them out.....
Originally Posted by EVOIXMR8916
and if you want smooth shifting you can also buy the mr trany oil and from what i read is a noticable differance...not sure about the teflon cables but im sure there is swaps for those...get a short shifter kit and youll never look back at the 3-4 k you saved and all the problems you avoided...
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Guys, guys....come on, I did not start this thread to cause any trouble. 
Does anybody think that the addition of a larger aftermarket trans cooler that held more trans oil would help with the problems on the 6 speed? I figure it would disapate the heat in the trans oil better and we all know that heat kills.......
Does anybody think that the addition of a larger aftermarket trans cooler that held more trans oil would help with the problems on the 6 speed? I figure it would disapate the heat in the trans oil better and we all know that heat kills.......