Cobra's arent any faster then an 05 GTO stock for stock. Its a very very close race and close weight but the LS2 probably makes a better power curve becasue its pure displacment making the power as oppsed to wating a few hudred RPM to build up boost. When I had a few bolt ons on the LS1(catback/Lid,Untuned) it was hangin with some stock Cobras pretty well and was trapping damn close to most and the same as some."mine109VS109-113"I actually beat a few at the drag strip and was traping/running the same as a few of them. Although where a few trapping 113 and beating me slightly but I was nearly stock. The LS2 is even more superior.
A Blown LS2 would beat a Kenny Bell Cobra. I dont care what you say.
It would be an easy 600 HP with a blown LS2.600HP is hitting a plateau for Cobra. Hell, A blown LS1 can get nearly as high. I know a guy who has a Whipple/kenny brown charger on his Cobra its pushing about 520 to the crank" scares me to death to ride in it" But still not 600HP.
Now if the Cobra had a bigger Engine it would be nearly untouchable. But it dont.

 

I dont think so, when you find me a LS2 GTO that runs a 12.4 bone stock (which several 03/04's have done) and traps 115 mph stock (which snorman hit in his stock 04, w/ most hitting 113.xx) then ill buy it...**** I dont even think a c6 has hit anywhere near those numbers stock yet. Maybe w/ average unskilled drivers it would be close but thats about it...Like I said I love both cars but the 05 GTO is not as fast, and w/ mods the gap only widens because the forged engine of the cobra can handle gobs of boost, unlike the LS2....ones practically bulletproof and ones not

 

Never in my life have a seen a Cobra "stock" run a 12.4. I pretty much live at the track all season every weekend. And I have only seen one trap 115 out of the many I have seen run. The guy said it was stock but I dont know.
The majority dont run that if any do.
The LS2 dont need nearly as much boost becasue its so much larger in displacement. For half the boost it would make more power.

 

A c-6 would beat a Cobra. More power and less weight=faster car.

 

whatever you say man...Im done w/ this discussion

 

Ok..Fine with me.

 

umm,

03-04 cobra = 390 HP/3500 pounds +/-
05 GTO = 400 HP/3500 pounds +/-

this is pure physics here, clearly they are very evenly matched with GTO having a slight advantage. no stock cobra is going to "smoke" a stock 05 GTO.

 

This is the same point I was trying to make. Specially with the c6 wich is hundreds of pounds lighter. It just wouldnt make any damn sense for the Cobra to be faster then the C6 so when He implied such I just wondered if he used common sense.
physics as you said.

 

oh hell yeah, a C6 would eat an 03-04 cobra's lunch

 

sorry to say but i dont see my 05 GTO beating an 03-04 cobra.my SS runs low 12s and itll kill it.ill have to get someone i trust to go head to head with it.

they make less power and theyre probably heavier.



if an ls2 was in an fbody id buy it but not in a heavy GTO.



i saw a turboed 04 run a few weeks ago running 11.0@127 and he had to baby it out of the hole.


just wait till they get them out for 05 GTOs.

 

If you had a clue you would know that the 03/04 Cobras are underated, there more like 425 hp...most dyno @ 365 rwhp give or take a few....your 05 GTO's are dynoing in the 330-350ish rwhp mark, and they weigh right around the same...you do the math.

 

They are underated.Probably not as much as you think though. One reason they dyno so high is because they come with lightweight aluminum flywheels wich decrease the rotating mass.
With an aluminum flywheel Id say its more like 11% 11%of 365=40.15.=405. Not all dyno that high so I gave it the benefit of the dought. I have seen them dyno 340-360. I wouldnt bet the average is 365 but then again I havent seen hundreds of dynos so I wouldnt have an average. But a Blown motor dont put down power in the same manner a NA engine does. Just because it dyno's slightly higher dont mean its got a better power band. Not to mention the LS2 has more like a 15% loss for the standard" steel flywheel"350+52"15%"=402. And of course you wouldnt say anything about the LS2's that dyno in the 360 range wich are pushing a little more then 400HP. Mention the best of the pony and the medium for the goat.
Regaurdles, Id think the LS2 makes about the same power and starts making it earlier in the RPM band due to its naturually apspirated powerplant. I am aware the SC Cobra makes real good low end power for a blower motor but not as much as the Big LS2.
I think im done trying to explain this. I love both cars though. I would definitly own a SC Cobra but not over the refined LS2 goat.
Then again I wouldnt trade my car for either. Good night gents.

 

True, but it's still a mustang, there's two at every stoplight. The GTO is much more rare. The Cobra does have a fantastic engine, but the rest of the car doesn't compare to the goat.

Jason

 

It really sounds like many people don't want to accept the fact that the LS1 is becoming yesterdays news and the LS2 is the engine to beat. Kinda like how it was when the LS1 came out and LT1 owners would argue to the death (many still do ) that the LS1 is not much if any better. Seems like the same scenerio all over again now. It'll just take time, and people will begin to accept the fact that the LS1 is no longer king. Still a great motor!, but now lives in the shadow of the LS2.

 

ls2 liker other ls motors is ls1 derived.

its an improved version of an ls1.



despite GM calling it a gen 4 its still a variation of an ls1.



ls1s arent gone.theyre just better.

i dont cry and whine about an ls2.i bought one instead.