To 4.10, or not to 4.10?
02-03-2012, 02:16 PM
#1
To 4.10, or not to 4.10? I've got a 00 M6 T/A with bolt-ons. Planning on ported 243s and a 228/232ish cam.
I daily drive the car about 40-50 miles per day to and from school, so with the mods I'll already have my mpg won't be outstanding, but I'm willing to give up a little of that for performance.
I know 4.10 will improve my ETs, and lower my mpgs as much as anything else, the question is would it be considered worth it on a DD. Or would you guys recommend something like a 3.73 to meet in the middle?
I daily drive the car about 40-50 miles per day to and from school, so with the mods I'll already have my mpg won't be outstanding, but I'm willing to give up a little of that for performance.
I know 4.10 will improve my ETs, and lower my mpgs as much as anything else, the question is would it be considered worth it on a DD. Or would you guys recommend something like a 3.73 to meet in the middle?
02-03-2012, 04:14 PM
#3
even with all those mods you should still be able to knowck down mid 20's on the hwy with the 4.10's because thanks to 6th gear you will only be turning a little under 2k on the hwy at 80. 4.10's in an m6 are a blast so yes i say go for it, 3.73's are way to close to 3.42's to be worth it if you really are scared of4.10's motive makes 3.90's which are a nice middle ground.
02-03-2012, 06:08 PM
#4
even with all those mods you should still be able to knowck down mid 20's on the hwy with the 4.10's because thanks to 6th gear you will only be turning a little under 2k on the hwy at 80. 4.10's in an m6 are a blast so yes i say go for it, 3.73's are way to close to 3.42's to be worth it if you really are scared of4.10's motive makes 3.90's which are a nice middle ground.
Trending Topics
02-05-2012, 08:38 PM
#8
TECH Veteran
iTrader: (14)
Join Date: Apr 2005
Location: N. Falmouth MA
Posts: 4,085
Likes: 0
Received 0 Likes
on
0 Posts
^ My thing was how much of first gear do you lose with 4.10's on an M6? (Street car) They seem more of a drag gear to me.
Some may say it's streetable, some may not.
Some may say it's streetable, some may not.
02-05-2012, 08:45 PM
#9
TECH Resident
Join Date: Nov 2011
Location: NJ
Posts: 812
Likes: 0
Received 0 Likes
on
0 Posts
I've got a 00 M6 T/A with bolt-ons. Planning on ported 243s and a 228/232ish cam.
I daily drive the car about 40-50 miles per day to and from school, so with the mods I'll already have my mpg won't be outstanding, but I'm willing to give up a little of that for performance.
I know 4.10 will improve my ETs, and lower my mpgs as much as anything else, the question is would it be considered worth it on a DD. Or would you guys recommend something like a 3.73 to meet in the middle?
I daily drive the car about 40-50 miles per day to and from school, so with the mods I'll already have my mpg won't be outstanding, but I'm willing to give up a little of that for performance.
I know 4.10 will improve my ETs, and lower my mpgs as much as anything else, the question is would it be considered worth it on a DD. Or would you guys recommend something like a 3.73 to meet in the middle?
02-05-2012, 08:48 PM
#10
TECH Resident
Join Date: Nov 2011
Location: NJ
Posts: 812
Likes: 0
Received 0 Likes
on
0 Posts
they are streetable. moreso today than 25 years ago. the problem is that they're really still a bit high for a street daily driver. best compromise is 3.73's. they give you excellent launch, let you use all of your power band, and you don't come anywhere near running out of engine at the top end.
02-05-2012, 08:50 PM
#11
TECH Regular
Join Date: Aug 2010
Location: houston, texas
Posts: 462
Likes: 0
Received 0 Likes
on
0 Posts
sixth gear in a t 56 is .50. i have put in three sets of 4.10's two in my 10 bolt and one in my 12 bolt. perfect for an m6. drove it to san antonio about 220 miles and got 23mpg with and ms4 running 75+ the whole way.
02-05-2012, 09:03 PM
#12
I did the same thing when I was in your situation. The 4.10s are bad for daily driving IMO I really wish I went with 3.73s they would be just perfect! The RPMs for normal driving conditions mess up what gear you should be in from my experience. I daily'ed 30k miles with 4.10s
02-05-2012, 11:12 PM
#13
I'm running about 1700 RPMs at 80 with with gears at the moment, so I doubt 4.10s would only bump me up to just under 2k, but I could be wrong. The fact that I do a TON of highway driving is why I considered the 3.73s so strongly. If I didn't drive the car on the highway as much as I did, it would be 4.10s hands down. I may wait a bit for a gear swap though and go with some suspension mods instead. Either way, thanks a lot for the input guys.
02-20-2012, 09:34 AM
#20
Teching In
iTrader: (1)
Join Date: Jun 2008
Location: Arlington Texas
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
I have a bolt-on m6 as well, I have 4.10's and commute about 50 miles for school and work. My mpg averages about 18, I dont exactly "baby" my car so I think if you go 4.10's than you will be alright. Either way you go, you wont be dissapointed.