When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
From: Prepare yourself, for a pride obliterating bich smack. Fairfax, VA
St. Jude Donor '06-'07-'08
SEC > BCS 4 St. Judes '09
Originally Posted by DynoTech Engineering
MG is the ONLY aftermarket manufacturer of 1997-2004 C5 & 2005 C6 differential gear set and we have been using them for 4 years now.
very interested in the 3.90 or 4.10. i dont think my 6 will ever be much higher than 400rwhp, and realistically, will probably remain in the 370-390rwhp range. so do i really need all of the hardened and strengthened pieces? i will eventually replace the stock runflats with something much stickier (PS2's prolly).
its my daily driver, but my commute to work is only 4 minutes, and the rest of the time it is purely pleasure driving. will the 4.10 be too steep for me? i dont like to kill it off the line, but i am dying for some more punch in the 20-90 mph range.
lastly, what should the average install time for stage 1 or stage 2 be?
All relative vehicle speed/gear ratio charts above have been tested/validated by DTE on our chassis dyno and are an approximation of +/- 30 RPM accuracy. These values are subject to change in either direction with other types of tire/rim combinations other than what were used for the calculations above. Use the above charts as a point of reference only.
Please give us a call, email or post here with your questions/comments and we'll respond promptly. Have a nice day gentlemen!
Best Wishes,
DTE
(260)407-5455
6th gear rpm for the z51 and non-z51 are not the same. There is a 12% increase in rpm for the z51 transmission gear of .56 in sixth. Same issue in the MN6 and M12 transmissions from the C5.
Misinformation is no help and what good is a point of reference that you know to be wrong for 1/3 of the stick drivers on here? As a forum vendor/tuner specializing with gears and diffs your words carry extra weight with potential buyers. Guys are looking to you for the right answers. I would respectfully suggest that you update your chart or alternatively, don't post it.
We currently re-calibrate the PCM for in-house differential installations only at this time, but in the future, we may adopt the same system we already use for the C5 Corvette~ where the end user sends us their PCM, we make the necessary calibration changes for them respective to the gear ratio chosen and send the PCM back.
We now have 5 different levels of C6 differential performance levels to match just about any performance application. You can see the information here via this link and our website will be updated with this new information soon also.
yea, stock gearing on base A6 2006 is like 2.86 or something like that
i'd really like 3.42 or 3.73, that's probably the only mod i would do to a brand new car - so the programming should be even easier for you guys
i'll call you up when im ready, thanks for the reply
Stock gearing is 2.56 for the A6. The final drive ratio is 10.29 in first. The lowest first gear of any model. Going to 3.42 would give you a final drive ratio of 13.99 and 3.73 would be 15.26. As a comparison going to 4.10's on a manual tranny would give you a final of 12.17 and that is with the Z51 first gear. Either gear would make first in the A6 useless IMO.
Stock gearing is 2.56 for the A6. The final drive ratio is 10.29 in first. The lowest first gear of any model. Going to 3.42 would give you a final drive ratio of 13.99 and 3.73 would be 15.26. As a comparison going to 4.10's on a manual tranny would give you a final of 12.17 and that is with the Z51 first gear. Either gear would make first in the A6 useless IMO.
This is great information!!! I seem to learn something new on this site everyday. I have an A4, 3.15, should I be concerned any (Not taking to the track etc) if all I will be doing is getting on it here and there, Also do the runflats increase the poss. of such problems such as weak strut, rear end etc???
This is great information!!! I seem to learn something new on this site everyday. I have an A4, 3.15, should I be concerned any (Not taking to the track etc) if all I will be doing is getting on it here and there, Also do the runflats increase the poss. of such problems such as weak strut, rear end etc???
the car will out live you, don't worry about anything...
There are 2 1/2 designs for the 2005 model year and another differnent design for the 2006 model year. We say 2 1/2 designs for 2005, because Getrag has made a few refinements in a few areas for the same year of differential that are subtle, but changes none-the-less and it's always a 'surprise" when we open another new unit up to find something else different yet again...
We're building the 2006 model now, but we don't have any cores for them in rotation yet, so you'll have to send the differential that's in your car to be built.