jk335

Hi All,

I am still trying to figure out if my car is acting normal during acceleration. From 50 MPH, downshifting to 2nd gear, I recieved a "thud" or "resistance" selecting the gear. I realize this is happening on a heavier load, but how come I do not encouter this problem from 4th to third around 70 mph?

This issue has plagued me for a while. People have told me the resistance will loosen up over time. Is this really just wishful thinking? I am at 4000 miles now... What do I need to do, hit 10,000?

And to just site it again, BMW for example makes no noise at all when i try this same sporty shift...

Are Porsches just loud cars in general, and maybe bmw shields us from this noise?

Fahrer

I think you just need a litle rev matching. Blip the throttle up to about 5000 rpms with the clutch out and then try to engage 2nd. These cars have transimissions that use balk type synchronizers and are, therefore, ..........."balky". Also, I think the 2nd gear synchro is heavy ( a good thing for durability)

cole328

+100 if you are going 50 on that downshift, you 100% should blip the throttle for smoothness.

Sadiq

please tell us you're rev matching

InTheAir

Absolutely.

I'd also recommend that you start to get a feel for the RPM drop/rise between gears at various speeds. That way, you can anticipate the RPM you will need to blip to to match the gear you're going in to.

The 3rd to 2nd shift is one of the biggest ratio changes and thus requires the most rev match. In my car, that's about an 800-1200RPM difference. Other downshifts (not 2nd to 1st) are about 600-800RPM difference. Thus, when you downshift, simply blip up the RPM to the appropriate amount and release the clutch.

Your passenger and your transmission will thank you.

jk335

thank you all for feedback.

So it sounds to me like this behavior is normal. I never had a car make this sound when shifting like this. BUt then again, I have owned BMW's the last 10 years.

I have noticed that in order to drive sporty, I have the rev match. I just need to practice a little bit.

I guess I just dislike the "balky" feeling, but it's done so that it is durable. makes sense. Function over sounds... Porsche likes to do this I notice...

Overtime, will this sound become less notciable? Like will the transmission break in further?

cole328

With all due respect, I think you should sell the porsche and buy another beemer....you're going to end up ruining your car if you wait for a transmissio to "break in".

raspritz

This is a pretty strong argument for purchasing one's Porsche new rather than used.....

At Law

Don't ever compare a BMW (aka Toyota Camry) with a Porsche 911.

Minok

What is 'driving sporty'? Is your intent to keep the revs up near red-line the whole drive? (are you on a track where you need that top-end power?)

If your driving to keep the revs high, then you absolutely must rev-match the engine. If there is resistance in the gearbox to you putting the gear in.. its mostlikely because the tranny knows the revs are wrong for the shift.

Fahrer

+1

buckwheat987

I understand a BMW is not a 911 but calling it a toyota camry is just being ignorant and snotty.

Many of your posts (like the cayman blasting) have the tone of a high and mighty 911 owner.

They are not as exclusive as you make them out to be.

To the OP...

for really spirted drivings... as others have mentioned you need to rev match or scrub off a little more speed before the shift....

stevepow

No kidding - different kind of car, but BMWs are fine cars and my e39 M5 was at least as fabulous, in its own way, as my 911 - and seemingly more exclusive, FWTW.

And a Camry is probably the "right car" for someone too. However, anyone who brings up Camry in comparison to any of the sport-lux German cars I have driven, has never driven a Camry. I encourage them to do so - just be extra careful getting used to the lack of brakes.

uzj100

You may want to do a little research on BMW and it's history and significance to racing--both auto and motorcycle. Some may recall the "fire breathing" 3.5 CSLs. Different type car, but certainly not a Toyota.

As noted, your post does come off as snotty. The OP had a legitimate question. Now go get the Mr.T gold chain starter kit to go along with that attitude

BGA23

If you can afford the car, you can afford the Rennlist membership.