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View Full Version : 5th to 3rd downshift in s13


aqwkmf
08-16-2002, 09:17 PM
i tried to downshift from 5th to 3rd at ~45 mph....grind. i seen another post about this before. is this a common problem with our cars?

Annoying Eric
08-16-2002, 09:21 PM
I have a question why were you in 5th gear at 45mph?

transient
08-16-2002, 09:23 PM
I personally like to go through all the gears anyway just because it gives me a better feel of how much of a blip I need to give the gas pedal to match the revs.

aqwkmf
08-16-2002, 09:34 PM
casual driving
15mph shift to 2nd gear
25mph shift to  3rd gear
35mph shift to 4th gear
45+mph shift to 5th gear (aka overdrive) saves gas by locking the torque converter and lowering rpms
taken from owners manual

my racing choices
2nd shift to 30-35
3rd shift to 50-60
4th shift to ? never redlined 3rd gear yet


i like ur method transient....ill use it.....im more worried about my can than the time

Silviaspeed
08-16-2002, 11:03 PM
It can be done, you just have to make sure you match the rpm's to the gear.  If you grinded, you weren't revving the engine enough to match the synchros.  I can do it fairly easily, you just need to be familiar with what speed is best for which gear.  For instance coming up to my block i'll be in 4th, as i come up to my block I apply the brake......and once I reach a certain point I shift to second and make the turn.

drift into a curb
08-17-2002, 11:43 AM
If you're just downshifting, you should be able to get it in to 3 at 45 mph fine.  That'll put you at what 3750-4000rpm?  

Well, if you're double clutching to rev-match, here's a tip:  after clutch and putting it in neutral, push the clutch in and blip the throttle to an estimated rpm at the speed you're driving while slightly pushing your shifter in the gear you want.  When you've rev-matched, the shifter should slide in to the gear easily.  

Dunno if I explained that correctly, it's too early in the morning, so correct me if I missed anything.

ruf
08-17-2002, 11:53 AM
Even if you revmatch, you may still grind. You need to double-clutch to spin up the idlers in the transmission to the matching speed as well. Rev matching with the clutch in will only match engine RPM, not transmission gears.

whateverjames
08-17-2002, 12:52 PM
sometimes double clutching won't help my transmission. i have to push in the clutch, take it out of 5th, go to 2nd gear, then 3rd, rev match (to save wear on the clutch) then let out.

aqwkmf
08-17-2002, 09:43 PM
yea trust me i was't casual downshifting <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cool.gif" border="0" valign="absmiddle" alt=':cool:'>

tnord
08-17-2002, 10:51 PM
sheeeet...........i beeyotched that linkage down duece cogs from da figgidy-five yo, and dat's at double 40's. it ain't no thang.

aqwkmf
08-17-2002, 11:08 PM
hey tnord...do u mind if i steal that phrase for my sig?

tnord
08-17-2002, 11:18 PM
go ahead........just so long as you give me credit for it, as i see you already have.

DuffMan
08-17-2002, 11:21 PM
3rd gear is just messed up on our cars. Next time go to 2nd &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'>

camppain
08-18-2002, 02:08 PM
i never had any problems like that on my s13. and i usually go into 5th gear at 39-40 mph no problem

my240likenoother
08-18-2002, 07:35 PM
i have had no pob there eather
but i always mach up the rmp when downshifting
your sincros could be shot <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'>

PabloHoney
08-19-2002, 02:51 AM
</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (aqwkmf @ Aug. 16 2002,10:34)</td></tr><tr><td id="QUOTE">casual driving
15mph shift to 2nd gear
25mph shift to 3rd gear
35mph shift to 4th gear
45+mph shift to 5th gear (aka overdrive) saves gas by locking the torque converter and lowering rpms
taken from owners manual</td></tr></table><span id='postcolor'>
Hmmm, the owners manual is dumb if that is a quote from it. If you have 5 speeds, you have a manual obviously, and if you have a manual, I would love to see you lock up your torque converter =) hahahaha, that's damn funny.

HippoSleek
08-19-2002, 07:11 AM
It helps to guide it from 5-4-3 (clutch in, brake, 5-4-3, clutch out. &nbsp;I think it's tricky to hit 3rd just right unless you guide it that way. &nbsp;Doable - but, for me, slower and more likely to get a refusal b/c I'm too close to 1st &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/nervous.gif" border="0" valign="absmiddle" alt=':nervous:'> &nbsp;or 5th.