Question for the 4V crowd (03 Cobra)

1Badsnake · April 19th, 2009, 08:33 PM

Anyone running 4.10 gears in an 03 Cobra? I currently have 3.73's, would there be any benefits to upgrading to them? After all, I have to upgrade my irs to stage 5 half shafts and 31 spline diff, would be a good time to install if beneficial. Anyway, any help you guys could give would be greatly appreciated. Tx.

ReverendDexter · April 19th, 2009, 08:36 PM

The usual logic is 4.10s for N/A, 3.73s for boost.

Does it feel like you need more gear?

C MY 4D · April 19th, 2009, 08:43 PM

I run 4.10s..... Currently at the track I am bouncing off of redline at 125 mph with a 26" tire. It will be getting some 28s this year.

Cricket · April 19th, 2009, 09:57 PM

I've heard that Cobras are rev happy and like the higher rpms

Scott2001GT · April 19th, 2009, 10:00 PM

i am sure it would be alot more fun! I know a guy that ran them in a 01 Cobra but not S/C. I would if I were you

Muscletang · April 19th, 2009, 10:36 PM

I drove C MY 4D's pullied 03 with 4.10's for a couple of days and it was great. I couldn't imagine a different gear being better. It had a TON of pull and with the 6spd it was good on the highway.

Lefty · April 19th, 2009, 11:06 PM

Originally Posted by Cricket

I've heard that Cobras are rev happy and like the higher rpms

You sir are correct. You'll notice a difference in higher end w/ your Termi compared to your GT Cricket

wraitherx · April 19th, 2009, 11:27 PM

love my 4.10's. and yes they are "Rev" happy

Mod mach · April 19th, 2009, 11:41 PM

yeah 4.10's FTW not a cobra but im close enough.

1StockGT · April 20th, 2009, 10:04 AM

I'd like to do 4.10s in my 03 Cobra, but the wheel spin now is crazy. When I get a beater and can run drag radial full time I'll throw some in.

1Badsnake · April 20th, 2009, 12:07 PM

I appreciate the input guys, I actually might go with them. On the other hand, I am thinking of a TT set-up and wonder how the gears would affect that set-up. I had 4.10's in a previous gt and loved the acceleration with an auto (although I did blow three rear tires in a row). How much different is it with the t-56? I would like to experience 4.10's in a 03 before I buy and install them.

Mach Boy · April 20th, 2009, 12:19 PM

4.10s would be better in a turbo/centri setup than a PD blower. You'll smoke the tires off the line with your current blower.

Mod mach · April 20th, 2009, 02:39 PM

yeah TT FTW forget the gears

93hatch · April 20th, 2009, 02:50 PM

what are rpm are you going through the traps at when your at the track?

Smoothgrandmama · April 20th, 2009, 03:05 PM

If nothing else you could go with 3.90s or 88s

1Badsnake · April 20th, 2009, 05:43 PM

I haven't been able to go up to the track, primarily due to work. I am planning a trip up to dinwiddie in may for either t and t or friday night street wars.
You guys that have trouble with wheel spin what kind of tires are you using? I got rid of the pos goodyears because I had lots of traction issues. The ones I have now are pretty good and no problems at wot. unless it's a little wet. Thanks for the input Machboy.

C MY 4D · April 20th, 2009, 06:05 PM

Originally Posted by 1Badsnake

I appreciate the input guys, I actually might go with them. On the other hand, I am thinking of a TT set-up and wonder how the gears would affect that set-up. I had 4.10's in a previous gt and loved the acceleration with an auto (although I did blow three rear tires in a row). How much different is it with the t-56? I would like to experience 4.10's in a 03 before I buy and install them.

Well you also need to remember tire size will effect them also. A taller tire will help alot in the 60 foot. That is why I stuck with the 4.10 instead of going back to a 3.73 or 3.55.

C MY 4D · April 20th, 2009, 06:07 PM

Originally Posted by 1Badsnake

I haven't been able to go up to the track, primarily due to work. I am planning a trip up to dinwiddie in may for either t and t or friday night street wars.
You guys that have trouble with wheel spin what kind of tires are you using? I got rid of the pos goodyears because I had lots of traction issues. The ones I have now are pretty good and no problems at wot. unless it's a little wet. Thanks for the input Machboy.

Now that most of my suspension is done, I don't really have a wheel spin issue with my Nitto Drag radials. I can't wait to try out my ET Streets.

1StockGT · April 20th, 2009, 06:48 PM

I'm just running regular street tires on mine. 295/30/19s Continentals are what I have on mine. The Sumitomo 315/35/17s weren't any better under wot either though. I've read too many horror stories of running drag radials in the rain. I'll just wait until I have a beater so slap a set of drag radials on mine.

C MY 4D · April 20th, 2009, 07:03 PM

Drag radials aren't bad in the rain. It's the drivers that have an issue. You just have to drive like you have some sense. Hell the time it snowed here this year I drove to work on Bald Mickey Thompson drag radials without an issue.

April 19th, 2009, 08:33 PM	#1
1Badsnake Regular 2003 Mustang Cobra Join Date: May 2007 Location: Virginia Beach, Virginia Posts: 217 iTrader: 0 reviews	Question for the 4V crowd (03 Cobra) Anyone running 4.10 gears in an 03 Cobra? I currently have 3.73's, would there be any benefits to upgrading to them? After all, I have to upgrade my irs to stage 5 half shafts and 31 spline diff, would be a good time to install if beneficial. Anyway, any help you guys could give would be greatly appreciated. Tx. __________________ MM Cobra Club #17

April 19th, 2009, 08:36 PM	#2
ReverendDexter Priest of the Car Gods Clapped-out '90 GT 'vert ~5.5 seconds off TTOD :( Join Date: Jan 2007 Location: Rohnert Park, CA Posts: 13,808 iTrader: 0 reviews	The usual logic is 4.10s for N/A, 3.73s for boost. Does it feel like you need more gear? __________________ O o /¯/______________________ \|BLAAAAAAAAAAAAAAAAAAAAAAAAARGH!!! \_\

April 19th, 2009, 08:43 PM	#3
C MY 4D Billy Weston 2003 Cobra 11.14@124.36 Join Date: Aug 2006 Location: Hampton, VA Posts: 4,806 iTrader: 8 reviews	I run 4.10s..... Currently at the track I am bouncing off of redline at 125 mph with a 26" tire. It will be getting some 28s this year. __________________ TT Build in progress....... Need work done to your car for a great price in Hampton Roads? Shoot me a PM.

April 19th, 2009, 10:00 PM	#5
Scott2001GT BYAHHHH! 2001 Mustang GT 13.874 Join Date: Mar 2008 Location: Missouri Posts: 14,793 Blog Entries: 1 iTrader: 3 reviews	i am sure it would be alot more fun! I know a guy that ran them in a 01 Cobra but not S/C. I would if I were you __________________ Precision Turbo\|TurboSmart\|TeamZ\|Strange\|Hellion\|BBK\|SCT\|Edge Converters\|Fairbanks\|CG Fabrications\|Treadstone

April 19th, 2009, 10:36 PM	#6
Muscletang Hardcore Enthusiast 1997 SVT Cobra Join Date: Sep 2007 Location: Chesapeake, VA Posts: 2,221 iTrader: 1 reviews	I drove C MY 4D's pullied 03 with 4.10's for a couple of days and it was great. I couldn't imagine a different gear being better. It had a TON of pull and with the 6spd it was good on the highway. __________________

April 19th, 2009, 11:27 PM	#8
wraitherx Moderator '99 SVT Cobra Join Date: Nov 2006 Location: Virginia Beach, VA Posts: 9,568 iTrader: 11 reviews	love my 4.10's. and yes they are "Rev" happy __________________ BUILD 2 IN PROGRESS

April 19th, 2009, 11:41 PM	#9
Mod mach Regular Join Date: Aug 2008 Posts: 126 iTrader: 0 reviews	yeah 4.10's FTW not a cobra but im close enough. __________________ 4Cams,4Valves,4.10's Hell yeah

April 20th, 2009, 10:04 AM	#10
1StockGT Enthusiast 2003 Cobra Join Date: Nov 2005 Location: Newport News,VA Posts: 628 iTrader: 1 reviews	I'd like to do 4.10s in my 03 Cobra, but the wheel spin now is crazy. When I get a beater and can run drag radial full time I'll throw some in.

April 20th, 2009, 12:07 PM	#11
1Badsnake Regular 2003 Mustang Cobra Join Date: May 2007 Location: Virginia Beach, Virginia Posts: 217 iTrader: 0 reviews	I appreciate the input guys, I actually might go with them. On the other hand, I am thinking of a TT set-up and wonder how the gears would affect that set-up. I had 4.10's in a previous gt and loved the acceleration with an auto (although I did blow three rear tires in a row). How much different is it with the t-56? I would like to experience 4.10's in a 03 before I buy and install them. __________________ MM Cobra Club #17

April 20th, 2009, 12:19 PM	#12
Mach Boy MM's Orangest 2004 Mach 1 Mustang Join Date: Sep 2007 Location: Indy Posts: 2,846 Blog Entries: 1 iTrader: 1 reviews	4.10s would be better in a turbo/centri setup than a PD blower. You'll smoke the tires off the line with your current blower. __________________ Looking for 03/04 4V ABS Wiring Harness Connector/Incomplete Wiring Harness (with ABS connector)

April 20th, 2009, 02:39 PM	#13
Mod mach Regular Join Date: Aug 2008 Posts: 126 iTrader: 0 reviews	yeah TT FTW forget the gears __________________ 4Cams,4Valves,4.10's Hell yeah

April 20th, 2009, 02:50 PM	#14
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,644 iTrader: 0 reviews	what are rpm are you going through the traps at when your at the track? __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

April 20th, 2009, 03:05 PM	#15
Smoothgrandmama Assistant to the Manager 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,134 iTrader: 6 reviews	If nothing else you could go with 3.90s or 88s __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal, 101Fng

April 20th, 2009, 05:43 PM	#16
1Badsnake Regular 2003 Mustang Cobra Join Date: May 2007 Location: Virginia Beach, Virginia Posts: 217 iTrader: 0 reviews	I haven't been able to go up to the track, primarily due to work. I am planning a trip up to dinwiddie in may for either t and t or friday night street wars. You guys that have trouble with wheel spin what kind of tires are you using? I got rid of the pos goodyears because I had lots of traction issues. The ones I have now are pretty good and no problems at wot. unless it's a little wet. Thanks for the input Machboy. __________________ MM Cobra Club #17

April 20th, 2009, 06:48 PM	#19
1StockGT Enthusiast 2003 Cobra Join Date: Nov 2005 Location: Newport News,VA Posts: 628 iTrader: 1 reviews	I'm just running regular street tires on mine. 295/30/19s Continentals are what I have on mine. The Sumitomo 315/35/17s weren't any better under wot either though. I've read too many horror stories of running drag radials in the rain. I'll just wait until I have a beater so slap a set of drag radials on mine.

April 20th, 2009, 07:03 PM	#20
C MY 4D Billy Weston 2003 Cobra 11.14@124.36 Join Date: Aug 2006 Location: Hampton, VA Posts: 4,806 iTrader: 8 reviews	Drag radials aren't bad in the rain. It's the drivers that have an issue. You just have to drive like you have some sense. Hell the time it snowed here this year I drove to work on Bald Mickey Thompson drag radials without an issue. __________________ TT Build in progress....... Need work done to your car for a great price in Hampton Roads? Shoot me a PM.

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