Super charger or 4.10's?
12-02-2010, 03:41 PM
#21
Instructor
Member Since: Nov 2010
Posts: 107
Likes: 0
Received 0 Likes
on
0 Posts
4.10 a mistake
Doesn't having the Z51 mean your trans is a wider ratio with a lower first gear? My 2010 has a first gear that is plenty low for a decent launch and if your is lower, then a 4.10 makes zero sense unless you pull out tree stumps on the weekends. I cannot understand how this thinking is one vs. the other.
12-02-2010, 04:52 PM
#23
Burning Brakes
I think your SC price is a little high. Go over to the SC section and you will see deals in the low 6k range. Doesn't ECS run a winter deal also? I think I would shop around and find a SC less then 8k. 
12-02-2010, 05:45 PM
#25
Instructor
I have a totally stock 2007 C6 Z51 accept for.......................and A&A kit! Oh and lowered (stock bolts in front WCC in the rears) and bilstein sports and running non-runcraps (kuhmo ecsta SPTs). Fun as hell, no regrets, accept I wish I had AR headers installed at the same time. That next on the list!
12-02-2010, 06:36 PM
#26
Race Director
Doesn't having the Z51 mean your trans is a wider ratio with a lower first gear? My 2010 has a first gear that is plenty low for a decent launch and if your is lower, then a 4.10 makes zero sense unless you pull out tree stumps on the weekends. I cannot understand how this thinking is one vs. the other.
I added 4.10 gears to my former 07 C6 Z51 thinking it would make the car soo much faster. Wrong, it's "fake" sotp acceleration. At the track gears were of little help and easily the WORST $2500 in mods I ever spent.
The key in this is likely the Z51 gearing, adding 4.10's was a bad move as after the inital "wow, car feels quicker" I found it sucked to require 2 shift to 60mph...yep I needed 3rd gear and unless your a very talented driver, those extra shifts cost you time/speed.
I soon found myself taking off from a stop in 2nd gear cause first was so short it was useless to me. I turned my 6 speed into a 5 speed.
People mention how much better 6th is for passing with gears.....well duh, you're almost using a ratio similar to 5th gear (pre-gears). All you've done is taken a nice cruising gear (6th) and made it act like 5th and knocked 3-4mpg off your highway range.
Again, my point of view will probably be in the minority but the combination of Z51 stock gearing + 4.10's is too much gear for the car.
12-02-2010, 09:14 PM
#27
Le Mans Master
Member Since: Dec 2005
Location: North Western Connecticut
Posts: 7,595
Received 91 Likes
on
54 Posts
12-02-2010, 09:21 PM
#28
2005 Beast
Um... your going to want the supercharger.... when it kicks in and you feel your back press into that seat and that explosion of power ....a smile on your face will stretch from one side to the other......
Oh and if you get good at it you can launch well with 600 hp.... takes a little practice but you can do it
Oh and if you get good at it you can launch well with 600 hp.... takes a little practice but you can do it
12-02-2010, 10:08 PM
#29
Burning Brakes
Member Since: Jun 2007
Location: Seguin Texas
Posts: 823
Likes: 0
Received 0 Likes
on
0 Posts
I added 4.10 gears to my former 07 C6 Z51 thinking it would make the car soo much faster. Wrong, it's "fake" sotp acceleration. At the track gears were of little help and easily the WORST $2500 in mods I ever spent.
The key in this is likely the Z51 gearing, adding 4.10's was a bad move as after the inital "wow, car feels quicker" I found it sucked to require 2 shift to 60mph...yep I needed 3rd gear and unless your a very talented driver, those extra shifts cost you time/speed.
I soon found myself taking off from a stop in 2nd gear cause first was so short it was useless to me. I turned my 6 speed into a 5 speed.
Mustang GT 8 years ago. I'll never make that mistake again.It was a tick faster though, but at what expense? Worse mileage, more shifting, higher revs in top gear. Also, you will be slower in a manual car
if you can't shift very fast. Some can, some can't.
12-02-2010, 10:54 PM
#30
Race Director
No doubt boost is awesome, fun, tons of power all through the power-band...but like any other mod, it has its downside.
If I were the OP I would also research the FI section on this board...although they might be a bit biased over there
12-02-2010, 11:10 PM
#31
Burning Brakes
Member Since: Jun 2006
Location: Grand Island New York
Posts: 857
Likes: 0
Received 0 Likes
on
0 Posts
12-02-2010, 11:23 PM
#32
Burning Brakes
Member Since: Nov 2008
Location: Lower RGV
Posts: 908
Received 66 Likes
on
40 Posts
St. Jude Donor '10-'11-'12
Here's something to tempt you to go s/c. My car is an A6 with 3.42 RPM gears (still stock trans and torque converter). For traction do the Spinmonster Traction Solution and run a 305/35/18 Mickey Thompson ET Street II in back. The way the car is set up in this run is the way it drives on the street...except for the skinnies up front. In fact, the car was driven about 40 miles to the track when this vid was shot. 
http://www.youtube.com/watch?v=1M1e9ZGhK60
http://www.youtube.com/watch?v=1M1e9ZGhK60
12-02-2010, 11:27 PM
#33
CF Senior Member
Member Since: Feb 2006
Location: Tucson Arizona
Posts: 23,313
Likes: 0
Received 19 Likes
on
18 Posts
I'm not a drag racer and I'm not a fan of forced induction on a stock, cast-piston engine. That said I suggest you go with a super charger instead of 4.10 gears...go for the power!
12-03-2010, 12:45 AM
#34
Melting Slicks
Thread Starter
Member Since: Jul 2007
Location: The Lost Borough, NYC
Posts: 2,027
Likes: 0
Received 0 Likes
on
0 Posts
Yes ECS has a winter deal for $5995 but that is for the S/C kit only I think. And ECS please correct me if I am wrong but there was another option for a 2k installation of the said kit, so the total for the S/C (installed) would be about $7500. Unlless I am reading the website incorrectly. FI isnt cheap no matter which way you slice it, the kits alone for these cars are 5k and up!
12-03-2010, 07:22 AM
#35
Team Owner
Yeah, a S/c'd C-6 is real tame to all but prius owners!
12-03-2010, 07:31 AM
#36
Team Owner
I added 4.10 gears to my former 07 C6 Z51 thinking it would make the car soo much faster. Wrong, it's "fake" sotp acceleration. At the track gears were of little help and easily the WORST $2500 in mods I ever spent.
The key in this is likely the Z51 gearing, adding 4.10's was a bad move as after the inital "wow, car feels quicker" I found it sucked to require 2 shift to 60mph...yep I needed 3rd gear and unless your a very talented driver, those extra shifts cost you time/speed.
I soon found myself taking off from a stop in 2nd gear cause first was so short it was useless to me. I turned my 6 speed into a 5 speed.
People mention how much better 6th is for passing with gears.....well duh, you're almost using a ratio similar to 5th gear (pre-gears). All you've done is taken a nice cruising gear (6th) and made it act like 5th and knocked 3-4mpg off your highway range.
Again, my point of view will probably be in the minority but the combination of Z51 stock gearing + 4.10's is too much gear for the car.
Funny reading this on the forum! From years ago! After all the screaming 410's
410's 410's 410's . The real story comes out again!
I went 390's which is low enough for the non z-51 C-6.
I had the 3.90's and Supercharged! In the Zo6, Supercharged I like the 342's!
The supercharger'd C-6 will smoke'm at will and keep almost the same MPG
12-03-2010, 09:27 AM
#37
Race Director
So true!
Funny reading this on the forum! From years ago! After all the screaming 410's
410's 410's 410's . The real story comes out again!
I went 390's which is low enough for the non z-51 C-6.
I had the 3.90's and Supercharged! In the Zo6, Supercharged I like the 342's!
The supercharger'd C-6 will smoke'm at will and keep almost the same MPG
Funny reading this on the forum! From years ago! After all the screaming 410's
410's 410's 410's . The real story comes out again!
I went 390's which is low enough for the non z-51 C-6.
I had the 3.90's and Supercharged! In the Zo6, Supercharged I like the 342's!
The supercharger'd C-6 will smoke'm at will and keep almost the same MPG
very true, (although I did recommend in this case 410's) I remember the days of the C5, everyone thought 410's were the cats meow, heated debates. People would never post up the true pros cons just "you have to get them" I did 390's in my C5 heads/cam coupe and that was the perfect gear for me.
12-03-2010, 11:05 AM
#38
Burning Brakes
Yes ECS has a winter deal for $5995 but that is for the S/C kit only I think. And ECS please correct me if I am wrong but there was another option for a 2k installation of the said kit, so the total for the S/C (installed) would be about $7500. Unlless I am reading the website incorrectly. FI isnt cheap no matter which way you slice it, the kits alone for these cars are 5k and up!
I was talking about a lot of the threads with Andy's kit installed and tuned for around 6k, but i have the ECS kit so I used them as an example because I am bias.
12-03-2010, 03:13 PM
#39
Pro
Member Since: May 2006
Location: New York
Posts: 643
Likes: 0
Received 0 Likes
on
0 Posts
Ok, where do I start on this one?
I faced a similar "dilemma" about a year and a half ago about whether to do the 4.10's or the SC. I thought I did enough research. I asked many different members, PM'd them and got some "inside" info in what they really thought! The overall consensus at the time was to go with the 4.10's. Even my very reputable installer told me that I would "love" the 4.10's! Well guess what? I went with the 4.10's, and never really liked them from day one! I too have an '08 with the Z-51. My car is an M6 and first gear is virtually useless. Its VERY short and other than a quick second jump off the line, you can bring it up to red line with what seems like very little pull. IMO the only thing first gear is good for is stop and go traffic where you don't have to shift as much and the car will creep along without stalling or shifting. Around town, even while cruising at 40 MPH, I'm into 4th gear already! When I was contemplating the gears, I was told that it would feel like I "bolted" on another 100 HP. Well with all due respect to those who told me that, BULL%$*T! The Edelbrock SC was not out at the time I made my decision, or I probably would have gone that route. I like the clean lines and factory look of this kit. Cost was definately a consideration in my decision since $2500 on gears in a brand new $65,000 car was a lot more palatable than $6,000 - $8,000! All that being said, if I had to do it all over again, I would have gone with the SC and stayed with my 3.42's! Another "kicker" was that I swapped out my almost new rear with only about 2500 miles on it for another rear with the 4.10's with "who knows" how many miles on it! I guess you live and learn! I may still put on that SC and go back to another 3.42 rear in the future. My car only has 4200 miles on it so I just might go for it. Whatever you do, good luck with your choice and always drive safely!
I faced a similar "dilemma" about a year and a half ago about whether to do the 4.10's or the SC. I thought I did enough research. I asked many different members, PM'd them and got some "inside" info in what they really thought! The overall consensus at the time was to go with the 4.10's. Even my very reputable installer told me that I would "love" the 4.10's! Well guess what? I went with the 4.10's, and never really liked them from day one! I too have an '08 with the Z-51. My car is an M6 and first gear is virtually useless. Its VERY short and other than a quick second jump off the line, you can bring it up to red line with what seems like very little pull. IMO the only thing first gear is good for is stop and go traffic where you don't have to shift as much and the car will creep along without stalling or shifting. Around town, even while cruising at 40 MPH, I'm into 4th gear already! When I was contemplating the gears, I was told that it would feel like I "bolted" on another 100 HP. Well with all due respect to those who told me that, BULL%$*T! The Edelbrock SC was not out at the time I made my decision, or I probably would have gone that route. I like the clean lines and factory look of this kit. Cost was definately a consideration in my decision since $2500 on gears in a brand new $65,000 car was a lot more palatable than $6,000 - $8,000! All that being said, if I had to do it all over again, I would have gone with the SC and stayed with my 3.42's! Another "kicker" was that I swapped out my almost new rear with only about 2500 miles on it for another rear with the 4.10's with "who knows" how many miles on it! I guess you live and learn! I may still put on that SC and go back to another 3.42 rear in the future. My car only has 4200 miles on it so I just might go for it. Whatever you do, good luck with your choice and always drive safely!
