TheAntiRice

My opinion is 4.10's or better and I would definitely put them up against 3:73's or 3.55's on two otherwise stock cobras. To get the push back in the seat and better quarter mile times in NA form with a cobra you want 4.10's or better in my opinion. If you are going to super or turbo charge your cobra in the future the 3.73's might be a better choice. And you won't just SPIN the tires with 4.10's as long as you can drive, ask anyone who has them, they are the way to go. Later (not calling you other guys out, just better stating my opinion.)

TheAntiRice

Oh, and happy birthday Whitesnake69.

whitesnake69

thanks man the only reason i said 3:73s is i have a 97 cobra with a k&n air filter and flowmaster and from a 15 mph roll i spin through first and half way through second from a stop spin through both thats why i think 4:10s would make you just spin

97Cobra

TheAntiRice,

(BWT ... great name ... hate rice). Good advice on the snow! I wouldn't dream of it, since I know how they handle (or don't in this case) ... I grew up around high horsepower cars ... no very snow worth. Still good advice for those who will read the forum. Yeah, my cobra gets grounded in the snow ... no reason to turn it @ss backwards into a curb or car or anything ... not my Cobra.

~Erik

mdvaldosta

anyone who puts 3.73's on a 4.6 Cobra isn't playing with a full deck. sorry dude but thats a big waste. you don't just get the benefits of gears in first gear, it affects all gears.

97Cobra

Okay ... sounds like there is no clear answer on the gearing question, go figure . Well, since I have only had the car out a handful of times when weather permits (still driving me crazy ... hehehe) ... I have noticed that their is a boost of power around 3.25 or 3.5 rpms when running through first gear. I do know that is partly from the 4.6 engine. Is there a way to lower that 'engagement' point of the power below 3 rpms? Without too much compromise? I will unlikely ever drag the car. I may (some day) do some autocrossing, but not without some modifications, but that will be later. Anyways, I's like to work on that 'engagement' point a little without killing gas milage and normal usability (for those rare occasions when I don't want to be the first off the line).

So, based on that, what do you think would be a better choice for me? I'm not a gearing expert ... but I will be learning as much as possible to try to figure out which would fit me best.

I think 4.30s are a little to high, as I have no plans to drag the car (and if I do, I will think on those then). I believe the stock Cobras come with a 3.27 for my year. All thoughts are welcome. Thanks.

~Erik

mdvaldosta

If your skeered of 4.30's then go with 4.10's - everyone's opinions are different but I can tell you I've driven 3.27's, 3.73's, 4.10's, and 4.30's - what about the other guys

97Cobra

Good ... you know the differences in them. Can you tell me what you have noticed in differences? How it drives? Where that power band engages? etc? (besides the 4.30s are faster ... hehehe) Unfortunatly, I don't have the ability to swap all of these in and out of the Cobra to decide ... so hence why I'm asking ya.

~Erik

mdvaldosta

Well, gears won't change your powerband, but they will get you into your powerband faster and give your more torque to the wheels in each gear. Gas mileage won't be a concern with any gear you choose unless you do alot of highway driving, around town mileage won't change - you just may find yourself using 4th gear where you used to cruise in 3rd.

Best thing I can tell you is that 90% of folks that put 3.73's in on a 4.6 GT will be disappointed - and you've got a Cobra with a 1k higher redline! Trust me, if your going through the trouble of a gear swap - don't waste it on 3.73's. I promise you if whitesnake drove a Cobra with 4.10's or 4.30's he would cream his pants and wish he went that way.

97Cobra

Good ... that helps. Like I said, new at this gear stuff. Since you are running 4.30s (I assume) ... can you tell me at what speed you normally redline? I think with my Cobra it is around 55 in first ... 77 in 2nd or so.

~Erik