Why don't you practice a neutral dump in your G a few times, I give your transmission another couple weeks of life at the most What people do in SOME cars is brake torque which is very different from revving it up and dumping it into drive.

 

Once My break in period Im going to see if my car is faster in MM mode with VDC off

or just straight up auto mode with VDC off.

Ill race my friends 97 Z28 and see if theres a diff

 

trust me, i driven both cars plenty of times. and i drive my dad 5at sedan pretty hard, and i drive the 5at sedan loaners even harder. I never take my foot of the gas when in MM, my foot i planted on the ground and i shift right before redline, after readline a couple of time w. the loaners . There is a huge lag btwn gears in an automatic. and who ever said you have to take ur foot of the gas when you shift a 6mt? have you ever driven a 6mt?

 

IT all depends on the driver as far as MT is concerned.
Some AT tricks that i have learned ever since having my G.

You can brake stall launch: Take VDC OFF ... put ur left foot on Brake ... and Press the gas with ur right foot ... and keep iit within 2kRpm before you left go off the brake .... this is how you launch an AT.

Putting your car in Neutral and reving itt and then throwing it into D ..will severly harm your transmission. THe Brake Stall Launch isn't very good for your engine as well ... but Launching at a certain Rpm on a MT ... isnt good either ....

AT's do have a lot of lag ... but once you get used to it ... u know exactly when to shift ... cuz you learn how to adjust to LAG. In the end it all comes down to the driver.. hope this helps a little bit?!

 

Never driven a 6MT G35. My other two cars are manuals though. I guess I just never really noticed any lag in the transmission. Hopefully after this thread I won't be looking for it every time

 

It's all about the gear ratio. If it was 6AT, probably most MT people will be smoked by the AT people. But our Manumatic is not the best ya know. We should get the real sequential option like SMG.

 

Whoever said you have to use the clutch when you shift a 6mt? Too bad they don't have 6mt loaners

 

Not too sure about that one, for example the SLK-class comes with a 6MT or a 7AT tranny and the 6MT still showed better times, given the same driver/conditions/etc of course.

 

The difference is something that you will not necessarily feel. But you will notice the shift points in D in 1st gear is not optimum. There was a test that result for the AT that showed an extra tenth of a second out of using MM mode vs D (I think that it was Autoweek- can't remember). I think that the G is one of the few cars (if not the only car)for which this is the case.

 

exactly, i wish they did have 6mt loaners, those 5at they give out are kinda boring to me.

 

they thing about the 6mt in the G is that the throws are very short so i makes it really easy to shift quickly. but in my 02 alti 5mt, i would agree that the automatic is about the same, since the throws were long and notchy

 

Agreed I gain a hair over a tenth on average using MM as opposed to auto.

Also I went to a 3.5 geared diff and have noticed only about a 2 tenth gain which isn't bad, but it's not the .5 sec gains that some of the Z guys are reporting.

With the original diff I finished the quarter mile at the very top of third gear right around 96 mph. With the new diff I have to shift to fourth at around 200 ft, before the finish. So it is faster, but you also have to add a shift which costs you a little time.

 

OK, here's my take on shift points. This is kind of technical.

Every gear has a ratio. What you want to do is calculate the difference in ratio from one gear to the next to get the % drop of RPM when the shift occurs. Now, find your trusty dyno chart of your engine. Find the point where the total area under the HP curve is the largest for that % change in RPM. Let's say the shift from 3 to 4 gives you a 10% change in ratio. And, your chart shows you that the point between 6,000 and 6,600 (a 10% change in RPM) has the most area under the HP curve. That means you should shift from 3 to 4 at 6,600 (which will drop the RPM down to 6,000). The shift point will be slightly different for each gear, but it will be close to the same optimal RPM.

Oh, and while it's a good guess to shift at redline, it's easy to prove that it could be the wrong place. Say you have an engine capable of 10,000 RPM with horrible heads. It makes most of its HP low in the RPM range (because of poor breathing), but it's capable of turning high RPM. You will be much slower if you shift at redline than if you use the calculation above.

Curt

 

Shifting in auto seems much faster than it actually is. You think you have shifted gears but you are still in the torque converter which is robbing you of power. A torque converter is basicly a box full of oil that spins (the oil spins not the box). Most of the time in an automatic the connection between your engine and the wheels are through that oil, i.e. there is no direct mechanical connection at all. The torque converter helps you make smoother shifts but wastes power.

So generally a well designed manual will always be faster than a well designed automatic.

If you want to be fast without a third pedal you should go for the formula one style clutch based paddle shift transmissions, as found in the ferraris and some newer audis. These transmissions are basicly manuals which have a computer do the shifts automaticaly, so they are as fast or faster than a manual transmission.

Also, the 05 G35 6spd has 18 more horsepower than the auto. I am sure that helps.

 

the 05 also lost 10lb of torque too tho