Answers To Your Gears and Cam Drive Ability Questions

[steeleshark2]

I had a couple PMs today asking questions about my gears. I finally decided to make a video (low quality) but I hope this answers a lot of questions. I hope you don't get motion sickness!! Look at my sig for my mods.

Thanks to:

ApexSpeed for outstanding customer service with fast shipping on many of my mods including gears
Texas Speed for an outstanding cam and accessories
EFI Alchemy for install and tune

[steeleshark2]

As you can tell from the video, gear noise is at a minimum with my mods. Worst is 81-84mph then is gone by 85mph. Very livable. People should notice less noise without the suspension mods that I have.

[caverman]

Thanks for that video....


I actually wish I didn't see this kind of stuff because it only makes me want to go out and drop the money on gears and an cam.

[Milkman20]

nice video! thanks for the post!

I just have a question, how did you hold that camera, shift and hold the wheel at the same time? your like an octopus. haha

[steeleshark2]

Originally Posted by Milkman20

nice video! thanks for the post!

I just have a question, how did you hold that camera, shift and hold the wheel at the same time? your like an octopus. haha

Thats what she said!!

On a serious note, it was pretty difficult but doable. You are welcome!

[Smoky10]

Your car has much better driveability than mine. If my RPMs get below 1800 in any gear there is some slight bucking, and lower than that it gets worse.

[caverman]

Originally Posted by Smoky10

Your car has much better driveability than mine. If my RPMs get below 1800 in any gear there is some slight bucking, and lower than that it gets worse.

I've heard that could be the tune that will make/break driveablilty as well.

[MARINE1991]

I am really happy with my Richmound 3.73 gears.. adds just a little bit more punch...

[caverman]

Originally Posted by MARINE1991

I am really happy with my Richmound 3.73 gears.. adds just a little bit more punch...

With an A6 you wouldn't want to go any lower than the 3.73 based on the transmission's gearing. You went from a 3.26 to 3.73 which is a nice jump. On an M6 they come with 3.45 so going to 3.73 is not as big of a jump.

I've heard some say that 4.11 even on an M6 is a bit much. That's why it's nice to the Shark's video.

I'm going to do gears some day but I'm torn for the money. I'm afraid 4.11 might be a bit much and 3.73 not enough. I've heard there is a new 3.90 gear which might be a good compromise.

[Shu71]

3.45 to 4.11 in 6th gear increases rpms at 60 by 264 rpm and at 70 by 309 rpms and at 80 by 353 rpms. RPMS at cruise is only a small snapshot of the real change.

To give a clearer picture how this affects acceleration, say you shift (SS w/ M6) at 6200 rpms, the 3:45 mph gear changes would take place at:
1-2 51 mph
2-3 74 mph
3-4 107 mph
4-5 153 mph
on the 4:11 gears the mph at 6200 rpm shift points would be:
1-2 43 mph
2-3 62 mph
3-4 90 mph
4-5 129 mph
5-6 153 mph

So the rear gear change increases the number of gears needed to get through to the same speed and increases how quickly it will get through the gears and increase speed.

[Shu71]

The difference in the Tremec 6 (SS) versus the Aisin 6 (LS/LT): This is just to show the difference in transmission gear ratio's not as a one has a better ratio set than the other, just that they are very different and this has an effect on the total gear (through the rear dif) the car will have when swapping gears.

2011 Tremec TR6060 (M10)3/16/2010Type:Rear wheel drive, six-speed manual overdrive transmissionEngine range:LS3 426 hpMaximum engine torque: 420 lb-ft ( 569 Nm )Maximum gearbox torque:430 lb-ft ( 580 Nm )Gear ratios:M10First:3.010Second:2.070Third:1.430Fourth:1.000Fifth:0.840Sixth:0.570Reverse:3.280

2011 Aisin AY6 (MV5) 3/16/2010Type: Rear wheel drive, six-speed manual transmissionEngine range:2.8L - 3.6LMaximum engine torque:370 Nm (273 lb-ft)Maximum gearbox torque:370 Nm (273 lb-ft)Gear ratios: MV5First:4.48Second:2.58Third: 1.68Fourth:1.19Fifth:1.00Six:0.75Reverse:3.96

[Shu71]

I just found the sticky with all this information I just posted, sorry, please feel free to delete for redundancy.

[steeleshark2]

No problem with having the numbers. To the average person, I feel numbers do not mean much. That is why I did the driving video. People can really see how the gears change your shift points and rpms throughout the speed band. Even with the cam, the shifting will be the same except you will be able to use the gears below 1500rpm.

[Tshepp]

Still thinking about this...I really dont think highway driving will bother me too much. I just want the launch off the line as I usually only city drive my car...