Cobras problem is that the rear gear is not a good choice stock for the 96-98 Cobra. 3.27's are like 2.73's on the old 5.0 and a change of gears really wakes the car up.

 

I've never driven anything but a stock '96 and '98 Cobra, but i'm sure you are right about gears waking them up. Heck, the 3.27s suck on my car and it sure does not pull hard up high in the tach like a Cobra.

 

Yea that is true. Way........Way off topic but when do you think I should get new gears in my car? Should I get full exhaust first? And what gears should I get? Sorry to be so off topic but I figured since someone brought it up.

 

the 3 mph advantage the cobra has over the 99+ GT's clearly shows which car is faster and what it's capable of. the e.t. on the other hand is up to the driver.

 

Your kidding me right...There are a good number of guys on the corral that have ran there 96-01 (more 99-01's) cobras anywhere from a 13.2-13.6@104-106 bone stock...The reason you dont see this that often is because launching that irs is a trained art, and most guys dont get enough practice. Sorry but thats WAY outta GT territory...Even in a street race a GT will get blown away w/ two equal drivers, GTs only chance(stock vs stock) would be to get a better launch off the line but it would get hawked down soon enough, from a roll it would just be ugly. I was a passenger in a race w/ a stock 01 Cobra vs a Stock 99ss, and from a 40 mph punch the Cobra put 2 1/2 cars on the SS real quick (no drivers fault), i was in shock. Those two extra valves make a bigger differance then you think, not jumping down throats, just tired of hearing guys say that there not a big differance in 99 up GTs and Cobras... Heres a little post for ya just so ya know im not making this up for arguments sake.http://www.corral.net/forums/showthr...hreadid=443191

 

Couldnt agree w/ you anymore, you've just summed it up in one sentence , while i went and posted a novel

 

I saw R-West of this board gain quite a bit from going to 3.73's from 3.23's in his 93 Z-28. Exaust will help too, but I think that the gear swap will be cheaper and lay the foundation for the exaust. With both full exaust and the gears you should run 107-108 at least in good weather.

 

every 15% difference in gearing = ROUGHLY 1 MPH trap speed. The 3.27's in a 99 Cobra (6800RPM) are the equivalent of 2.73's in an LT1 (5600 RPM). So the cobra is terribly undergeared cuz it makes peak power at such a high RPM. Typical 96-98' Cobras Should trap about 103's stock and 4.10s should put it close to 105's. A typical 99+ 5sp. GT traps MAYBE 99MPH,i just dont see how 103 vs. 99 is very compareable,i mean it CAN be a close race,but really,IT shouldnt.

 

First of all I was comparing a '99+ GT 5M to a '96-98 Cobra, not a 99+ Cobra. The GTs put down about 230 rwhp. The Cobras of those years do about 255 rwhp. The Cobras weigh about 150 lbs. more and have a higher powerband with the same gearing as the GT. Stock for stock these cars are very close in e.t. (about .05 of a second different) and about 2 mph different in trap speeds. The Cobras are harder to launch and get a good e.t. with because of their higher powerband.

 

Ive driven both(98 Cobra and a 03 GT), they both suffer from weak low down torque, more so the GT(well I thought so compared to any 4th gen ive ever driven)...up top is a differant story. Ran head to head w/ equal drivers the GT will get rocked.

 

my friend never had a problem launching due to the higher revs. Why would it be harder?just launch at a higher RPM nothin hard about that.If youre talkin about only 2mph then you must be comparing a hardtop GT to a Convertible Cobra,which sounds about right.Oh yeah my homies 96 Cobra wighed in at 3600 or so with him in it and hes a bit over 200lbs. so the 96-98 Cobra and the GT are very close in weight. The 99-01 Cobras weigh a bit more due to the IRS.Reread my post i was comparing the 96-98 Cobras as well. When you say .05 difference in E.T you're comparing a GOOD GT run vs. an average Cobra run. The difference in ET would be closer to 3-4 tenths with equal drivers gettin the same 60' times.

 

Very true statement.

My car stock ran a 14.2 @ only 96. With the 3:73 gears it ran 14.0 @ 98. CAI put me at 13.90 @ 99. Now with the DR's I am able to stall it higher without spinning and turn the times in my sig.

 

I've driven a '96 and a '98 Cobra. They both feel very similar in speed to my GT except from high speed rolls.

 

WOW....i guess you guys took my post a off the topic. I don't even feel like reading through all the post either to find out what you guys are even talking about anymore.

 

No, I am comparing hardtop 5M to hardtop 5M. My GT weighs about 3250 lbs. and the '96-98 Cobra about 3400. From what I have seen these Cobras e.t. about the same and trap about 2 mph more. Maybe I am seeing good GT drivers and poor Cobra ones?