RexApex

Could you clairfy this statement? Are you really suggesting you can't get into 2nd gear from redline in first?
--R.

legokcen

This is not true.

legokcen

With the S-Dias, dynamic intake air system, the intake path (length) and injectors come on throughout the rpm range. You should excersice this every once in a while so that the injectors do not get clogged and not operate when they are needed. For this reason, it is good to take the car to readline every once in a while. Take that they way you want, but some folks usually take it there about once every couple days. Of course, others more and others less. I'm trying to be as non discript as I can here.

I sometimes skip gears depending on my actions. I can pass a couple people at a light in 1st and second and put the car in 4th, 5th, or 6th at that time. 2nd redlines at 64 mph. Third at 93, so there is no reason to go to 3rd when the car is at the upper rpm band of second and no more acceleration is needed. As stated previously, you shouldn't downshift into 1st while moving. It isn't good for the sincros.

As for downshifting, I usually try to heal toe rev match. It's fun and better for the sincros. Something I've been perfecting for track days and autocrosses. It's smoother and more fun.

legokcen

And blow and apex seal from running too lean when the thrid injectors don't come on because they are fouled or plugged. They need to get used every once in a while.

Glyphon

that guy had an AT...no third injectors

legokcen

You're right. My bad. Ok, then.... this is only for 6-spd varieties.

Glyphon

yeah, i had to go back and look because i was confused about the "no room to get above 3500rpm in 3rd" comment. makes much more sense knowing its an AT

legokcen

Well, there is always more room. It all depends on whether you want to risk taking it or not.

Glyphon

haha, true, but if it was a MT, then he was basically saying, he can't get over ~35, which i found really odd, but i think with the auto, that'd be around the 70-80mph range...i think.

Nubo

I experience the same thing; not too many roads around here that 5th seems useful on, though it would maybe be useful to cruise a long country 45mph 2-laner. Sixth could definitely be taller.

Glyphon

i use 5th just about everytime i drive the car before its up to operating temperature.

boizart1

oh man i been down shifting from 2nd to 1st in almost any speed that would let it fall under 4k RPMs or so. I knew it didn't feel right but I just thought it was a characteristic of this car being that the transmission isn't supposed to be the best ever made. I've been down it for about 12k miles lol how much damage have I been doing?

swoope

iTrader: (5)

wow,

3 years, 4 months.

i think this might be a record. but great job on the search.. or did you read that far back..

the info is in the owners manual..

beers

Chronisseur

Lol, yup. Always good to see a ridiculously old thread revival. In this case it's actually interesting for me, as this will be my first manual transmission car. So thanks for the bump, guy.

learycd

iTrader: (1)

yeah 2nd to 1st gear down shift, well it really shoudnt happen, and your syncros tell you NO NO NO NO when u try to push it in 1st

u may have been putting extra wear on you syncros since youve noticed how it takes a little bit of time to get it in 1st right? thats the syncros matching up the speed of the gears

if u didnt grind gears, thats better, prob extra wear, not too much damage but dont do it

RIWWP

iTrader: (2)

If you have been just pushing it into gear with the clutch disengaged, you have probably be putting a ton of wear on your syncros. Not really "damage", but your will probably fail sooner than otherwise expected.

I personally have always wondered about how much the syncros are being used/worn on a perfect rev-match, upshift or downshift, regardless of gear. From my understanding, syncros were designed to avoid the double-clutch shift method, which nearly mandated rev-matching. Conversely, is it true that rev matching doesn't use your syncros? I also think that most people say "never shift 2nd to 1st when moving", referring to traditional clutch-in, new gear, clutch-out shifting, which is really rough going 2nd to 1st.

But how much wear is occuring on a 2nd to 1st with perfect rev matches? I have been rev-matching downshifts in all gears ever since my dad was teaching me to drive ~13 years ago, something he taught me from the start. "If you are downshifting, match the revs, it doesn't matter if you need it or not". You need to be precise, but it is never 'hard'. 2nd to 1st downshift with rev match feels extremely smooth and natural, shifter slips into gear without hesitation or resistance, can't hear any syncro whine or gears grinding, etc...

Am I wrong?

cjkim

rev match has no effect on synchros.. must double clutch for no synchro usage

RIWWP

iTrader: (2)

Hrm. No effect meaning it still uses them? or no effect meaning it doesn't? not exactly clear. I suppose I should look up the internals of a MT and see how they interact.

Astral

Synchros do all the work when you move your gear lever from neutral into gear. When you revmatch (with the clutch disengaged), you are only helping bring the engine revs up for smooth engagement between the clutch and flywheel and you are not affecting the amount of work the synchros do.

If you double-clutch, there is a part where you rev the engine with the clutch engaged and the shifter in neutral. Now that part spins up the synchros to the correct speed, such that when you engage gear, the synchros do barely any work.

Tethlah

Well, I'm doing it at 4 years and 6 months, do I get a beer? BTW, I ended up at this post because it was number 1 in a google search lol

LiveWire

iTrader: (1)

Hah, alcohol is exactly what caused me to revive a long dead thread (An embarrassing 8 year revive, live and learn). Tethlah, did you forget to post something or just revive this for the sake of reviving?

jasonrxeight

you got 9000 rpm to play with. just shift when you feel like it.

FNLR3

Listen to the engine, it tells you what it wants. Just two caveats:

1) If there are cars in front of you that you cannot pass, you must sadly tell the engine "no" and shift between two and three K to keep the torque down so you don't have to constantly brake.

2) If the fuzz is around or the pass you want to make is not really legal, you gotta be careful. Once, on one of my favorite back roads, some yutz in a pickup with a dresser in the back was slowing down to 30 in a 35 zone where 60 is better. After enough of that and my RX-8 just itching to really hit a corner hard, I waited for three-eighth mile straight stretch with a turn lane for the developments on either side. Then I PUT ON MY TURN SIGNAL, down shifted, and wen around the guy using the turn lane. The jerk accelerated to match me, then drifted at me which forced me into the opposite lane. Okay, game of chicken on, and I was doing ninety fourth into the small corner and didn't slow down below eighty (in sixth) until a stop light two miles away. The jerk in the pickup pulls up behind me, gets out and taps on my window with his police ID. If not for the stupid stuff he'd done with a passenger in his truck, I'd lost my license. Should not have listened to my car.

Other than that, go go go as you feel.

jasonrxeight

finally someone knows about cars.

SayNoToPistons

iTrader: (8)

Just some numbers on top of my head. All day everyday. On local streets, parking lots, school zones, driveway. 9000+ RPM, all day everyday. NO LIFT SHIFT.