View Full Version : Any 30V manual tranny owners eliminate the "flywheel/ineria" effect of the engine?


Ray Calvo
01-17-1999, 02:59 PM
This is the propensity for the engine to decrease RPM extremely slowly between upshifts. I actually have to pause in neutral for several seconds before engaging clutch when upshifting to a higher gear. I have actually started lifting my foot off the gas a significant time BEFORE the clutch is disengaged to avoid the RPM from actually momentarily speeding up slightly.<p>Anybody found a cure (I don't care - cut a wire, pull a fuse, change a computer chip)?<br>

Eric E
01-17-1999, 03:45 PM
I've just changed my shifting style slightly, lifting my foot off the gas slightly sooner.<p>My shifts are smooth, and there's no need to pause in neutral to let the revs drop. In fact, I think shifting as fast as possible makes the problem less noticeable, since it's only apparent while in neutral.

Gran Turismo-Playstation, (Anyone tried the Max Po
01-17-1999, 05:25 PM
(nt)

Ron S.
01-17-1999, 06:21 PM
Some fuel injection systems use a dashpot to prevent the throttle from slamming shut when the accelerator pedal is lifted rapidly (such as when shifting). Has anyone heard if there is a dashpot adjustment for the 30V that would allow the revs to drop faster?

tom_w
01-17-1999, 07:36 PM
Ray,<p>I have the same problem with my 1.8t. Having driven other cars (69 911e, 88 m3) which drop<br>the revs quickly I wish my a4 would do the same.<br>The two things I can think of to help the situation are a lighter flywheel and a freer<br>flowing intake and exhaust system. I'm assuming<br>that you have already installed a better air<br>filter, and might have a better exhaust. That leaves the flywheel. I havent gotten around to<br>calling Greedspeed and asking then about throttle response during shifts, but they sell a lighter flywheel. Post any additional info you come across<br>please..... I'll do the same.<p>///t

Stephen Smith
01-17-1999, 10:21 PM
Ray:<br>I took delivery of a new '99 2.8QMS in early December. During the time that I have been driving the car I have not noticed the problem that you described. I must admit that I have not "snap-shifted" the car during a maximum effort performance run, as the car is still quite new with less that 2,200 miles on the clock. But, under no circumstances have I had to very my normal street driving technique because the engine fails to drop sufficient RPM for smooth gear changes.<p>You may have an issue that needs to be addressed by Audi service.<p>By the way, I believe my new A-4 is the finest all-around road machine I have ever driven, at least during my initial six weeks of ownership.

G. Hale
01-18-1999, 07:41 AM
Unless I'm really needing to accelerate fast, I have found that changing gears somwhere just above 2500 rpm , but less than 3000rpm, seems to be the prime location for the next gear to smoothly engage.

G. Hale
01-18-1999, 07:43 AM

Ray Calvo
01-18-1999, 09:04 AM
Whoever you are, my problem is happending during normal driving, not hard acceleration. Normally shift at about 3000-4000 RPM and wait for engine speed to die down to appropriate value for next higher gear. For info, have probably close to 800,000 miles in manual transmission cars. If it wasn't for this problem, would feel Avant is (essentially) perfect. I wonder if they made a change for the '99 cars.<p>Brought this up at 7500 mile service; was told this is "normal, and nothing can be done".<p>Thanks for the feedback.

ray Calvo
01-18-1999, 09:07 AM
Tom, car is totally stock and I intend to keep it that way (I'll drive the Porsche 993 in the garage if I want to "play"). If someone can tell me a chip will cure this, would buy it. I personally feel its something in the electronics and control gizmos to hold throttle open to help emissions.<p>Thanks for the info.

Jim Meyer
01-18-1999, 01:43 PM

Stephen Smith
01-18-1999, 09:58 PM
Sorry! Didn't mean to sound as if I was questioning your ability to handle a manual transmission properly. Only meant to let you know that my range of experience with various engine RPM/Shift Points is somewhat limited by the short time I have had my A4.<br>I also, have been driving mostly manual transmission-equipped autos for a long time. Been driving since age 16 (in 1957) and have owned only 4 automatics in the 42 years that have passed since then.<br>By the way! I'm not sure what you were trying to say by introducing your reply with the phrase "Whoever you are", but despite the fact that the name Smith is fairly common, Stephen Smith is my real name and not one I use to hide my true identity. E-Mail me sometime and we can trade A-4 "war stories".