Drivetrain Encompasses driveline components such as the torque converter, clutch, transmission, shifter, front and center differentials, driveshaft, rear differential, and axles.

Tranny problem

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Old Jul 23, 2004 | 10:40 AM
  #46  
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after reading the trhread you added... I now know you are an old school driver..

double clutching is your thing...

ever try to pause for just a second while shifting? That is faster than double clutching and does the same trick on road racing OEM trannies .....



gino
Old Jul 23, 2004 | 11:45 AM
  #47  
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Gino, isn't it true that if you're downshifting all the time (into ANY gear), it will put less wear on your synchros to double clutch?
Old Jul 23, 2004 | 12:00 PM
  #48  
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Double clutching daily will give you muscle carmps dude...

Now wear on syncros is unavoidable. All you need to do is shift in a less agressive way and let the gear engage and then let the engine pull you. No slamming gears like we do on rear drive cars that can take the quick/lightning like shifting alot better. Remember you have an AWD car with lots of moving internals inside the tranny. rear drive cars just lock up the rear end, AWD cars blow up trannies or strip gears or burn clutches. It has to slip somewhere.

Now develop your own technique and you will be fine. I just dont feel the need to double clutch like most folks want you too to and say master it like it and live it.LMAO
How can yopu preserve the syncros ? buy an automatic.

It would have been an SOP on the warranty book to double clutch if it is really damaging not to. That valve that delays the clutch masters response is there to protect the tranny from blowing up on 7k rpm launches and rough shifting will be worse with that valve. Take that out and maybe you need to double clutch..lol...


be smart is all you need to do when shifting while doing spirited driving. double clutching doesnt make you a better driver on the streets on an OEM tranny, timing and smooth enagements make you a better driver.

.this way you need not visit a tranny shop in the near future. No way on earth double clutching will protect you from blowing up that tranny on an AWD if you are hard on it daily.



gino

Last edited by gbmotorsports; Jul 23, 2004 at 12:10 PM. Reason: to add smileys so the know it all gurus dont get mad..
Old Jul 23, 2004 | 02:07 PM
  #49  
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Shifting hard and popping the clutch are completely different forms of breakage, ie, gear breakage.

i bow to gino. But I will still double clutch on Mt Hammy when I'm downshifting to 2nd at 55mph.
Old Jul 23, 2004 | 04:17 PM
  #50  
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I double clutch daily, everytime I downshift I double clutch. So I double clutch parobably 50 times a day.
Double clutching into 1st can most def. be a recipe for disaster though, I fully agree with you there. If you downshift into 1st at 25mph by double clutching you better have engine speed matched exactly or you're gonna put major strain on 1st gear!
Synchros were created to eliminate the need to double clutch in daily driving. This is true but if you have a desire for them to last long you'll give them less work to do. Double clutching on downshifts gives them less work to do. Synchros have one task, match the speed of the gear you are going into with the speed of the teeth on the gear selector, allowing you to slide into gear and the teeth to mesh without grinding. Double clutching also does this job. So basically I don't mind my left foot doing the work instead of my synchros.
I honestly don't have a lot of faith in the WRX tranny (especially the synchros) so my daily double clutching is simply an attempt to reduce wear on my synchros.
I just want to make sure of one thing, I'm sure you're not saying this because you seem like an experienced guy, you're not saying not to rev match on downshifts right? Just simply that double clutching isn't necessary right?
I agree with you that double clutching is not "necessary" but it definately reduces wear on your synchros. Which in my books is a good thing. Plus the chicks dig nice calves

Last edited by KmanRuffian; Jul 23, 2004 at 04:27 PM.
Old Jul 23, 2004 | 04:23 PM
  #51  
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double clutching from 4th to 2nd coming into a hammy turn is one thing...double clutching EVERY time you down shift is another.

To me that's just ludicris. I mean with my last car I mashed it. Canyon runs. races. autox. whatever...mashed on it. And I never double that thing except for things like the hammy example. That thing had 100k on it before the syncros started going and the the clutch went...but that's mostly because of the week it spent in the hands of my friend learning how to drive a stick. The week my girlfriend had it. The drive over 17 with my friend who had never driven stick in his life. The 3 other people I taught to drive stick.

Now saying that....the subaru syncros are no good. We all know that...so I can see wear you are coming from...trying to save yourself some money for a while. But I just think it's excessive.

but then again....this is all coming from a guy with bad syncros at under 25k..haaaa.
Old Jul 23, 2004 | 04:42 PM
  #52  
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Originally Posted by OneManArmy

but then again....this is all coming from a guy with bad syncros at under 25k..haaaa.
lol, priceless. I mean when you are downshifting you are gonna want to rev match anyway so things go smoothly so why not just pause in neutral and double clutch when you are rev matching?

It just becomes habit, honestly to me it's just part of downshifting. I admit there times I don't do it but the majority of the time I do. I mean why not? Just adds to the driving experience if you ask me. Plus heel-and-toeing around corners gives you a great sense of satisfaction!

I think the combination of the fact that I simply could not afford to pay for a new transmission if it crapped out on me and the fact that SOA seems to be telling everyone with problems that they abused their car and denying their warranties just encourages me even more to do it...

A side thought on why I insist on double clutching: The force you have to apply to the shifter to get into gear is directly proportional to the wear on your synchros. If you don't rev match you have to press a bit harder so that the synchro can do its job (the force supplies the friction it needs).

If you rev match the shifter feels almost like it gets sucked into gear because the synchro has basically no work to do. I always feel like I'm asking too much of my tranny when I have to apply moderate pressure to go into gear, like I haven't done my job as driver properly. When I drive my car I only have to use very light pressure to shift, purely from my wrist.
If this is a testament of any kind I have 2002 WRX and have had my tranny grind only once on me (it was cold and the tranny wasn't warm yet). So yeah, long posts, sorry.

P.S. That doesn't really mean much though because I only have 20k on the car

Last edited by KmanRuffian; Jul 23, 2004 at 04:45 PM.
Old Jul 26, 2004 | 02:18 PM
  #53  
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my car is coming back tomorrow or wed. Yeah.

Said my gears are clean. Just syncro problems.

something out of alighment.
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