Credible source claims 2013 GT500 does 1/4 mile in 11.50 sec

[BigHemiSrt]

Originally Posted by MauriSSio

yeah you are right, technically on days a ZL1 can do 120mph the GT500 should be able to trap closer to 128-129mph. But the ZL1 is averaging only 116mph so i think an average trap of 125mph for theGT500 will be a more realistic number.

I totally agree. Im also prdicting that 2-3 of auto mags will only get 119-122 mph of them with their tests and a lot of the guys on here are gonna be quoting those tests saying they were right about the shelby not being a threat. Lol

[Rock36]

Originally Posted by BigHemiSrt

This... It has a better power to weight ration than a C6Z, and not by a slim margin either.

This is true, though by my standards ~0.4 lb/hp is actually only a slim margin in favor of the GT500. If the 2012 GT500 power-to-weight ratio was approaching ~1.0 lb/hp or better then I would agree. That is just me though.

Anyway mid-high 11s for a 2012 GT500 should be attainable. An 11.5 might require a driver with a little bit of experience though.

[BigHemiSrt]

My numbers.

C6Z=6.33

650hp Shelby=5.84

700hp?(over rev feature)=5.42

Not positive on the 700hp number. Maybe it was 670hp. Someone correct.

Anyway tho, we have to diff opinions. To me anything alproaching .5 lbs is pretty substantial.

[The IOM Ninja]

Originally Posted by BigHemiSrt

My numbers.

C6Z=6.33

650hp Shelby=5.84

700hp?(over rev feature)=5.42

Not positive on the 700hp number. Maybe it was 670hp. Someone correct.

Anyway tho, we have to diff opinions. To me anything alproaching .5 lbs is pretty substantial.

It is 670 Horsepower

[MauriSSio]

Originally Posted by The IOM Ninja

It is 670 Horsepower

when they stopped the test the HP was still going up. It might very well be 700hp

[ffrcobra_65]

Originally Posted by MauriSSio

when they stopped the test the HP was still going up. It might very well be 700hp

maybe 800

[BigHemiSrt]

^^^LOL...i think its prolly 670. 50 extra hp from a couple hundred more rpm's seems like a bit much

[ffrcobra_65]

So now we know some truth about the 12.02 and 12.24 runs. I can understand better why some are disappointed. Seems Henessey is the only one so far who ran and posted a time for a 100% stock ZL1.

Stock 2011GT500, Evan Smith ran 12 flat...stock means stock, tires and all. Hmmm I wonder what the 13GT500 will do on DRs? 10s?

[BigHemiSrt]

Originally Posted by ffrcobra_65

Hmmm I wonder what the 13GT500 will do on DRs? 10s?

Yes.

[1ltcap]

Originally Posted by EWMAN

just a small observation....

Why is it that the comparisons are a stock Chevrolet production car as compared to a Mustang that Ford sends to Shelby of America in Las Vegas to have it upgraded to be comparable to the Camaro?

the gt500 is built wholy by ford. the supercharged 5.4 liter that resides in the current gt500 is built at fords romeo niche plant. each engine is hand built, and signed by the tech who built it.
the car itself is built by fords svt division..

now i'll ask you a question, since you're concerned about factory to factory.

look at the continental tire challenge. why is it that ford, bmw, porsche, and aston martin run production cars in the gs class, but the camaro gs-r is not a production car? at least not the last time i checked.

[LimaCharlie]

Originally Posted by 1ltcap

now i'll ask you a question, since you're concerned about factory to factory.

look at the continental tire challenge. why is it that ford, bmw, porsche, and aston martin run production cars in the gs class, but the camaro gs-r is not a production car? at least not the last time i checked.

All cars in the GS class are production cars except for safety mods and minor suspension/brake modifications. The Camaro runs a factory TR6060 transmission and LS3 (except dry sump). The Mustangs, Porsches, etc. also have near factory drivetrains along with the essential safety/suspension/brake mods. Here's a video about the Stevenson Motorsports GS Camaro:

[a_Username]

Originally Posted by ffrcobra_65

So now we know some truth about the 12.02 and 12.24 runs. I can understand better why some are disappointed. Seems Henessey is the only one so far who ran and posted a time for a 100% stock ZL1.

Stock 2011GT500, Evan Smith ran 12 flat...stock means stock, tires and all. Hmmm I wonder what the 13GT500 will do on DRs? 10s?

I'm hoping you're not saying what you're implying here.

[goodtime]

Originally Posted by ffrcobra_65

So now we know some truth about the 12.02 and 12.24 runs. I can understand better why some are disappointed. Seems Henessey is the only one so far who ran and posted a time for a 100% stock ZL1.

Stock 2011GT500, Evan Smith ran 12 flat...stock means stock, tires and all. Hmmm I wonder what the 13GT500 will do on DRs? 10s?

Yep. I still can't understand the ambiguity behind the ZL1 times..... It's disappointing to see regardless of what side of the fence you live on.

The 2013 GT500 appears to be the nightmare GM was hoping wouldn't come true. Time will tell.

[Rock36]

Originally Posted by BigHemiSrt

My numbers.

C6Z=6.33

650hp Shelby=5.84

700hp?(over rev feature)=5.42

Not positive on the 700hp number. Maybe it was 670hp. Someone correct.

Anyway tho, we have to diff opinions. To me anything alproaching .5 lbs is pretty substantial.

My numbers
C6Z 3175/505 = 6.29
GT500 3820/650 = 5.88. ~0.4 lb/hp

Anyway you are using a little bit heavier C6Zand a little bit lighter GT500 that I am. But small variations in weight +/- 20lbs to account for slight differences (ie. ~0.4 or ~0.5 lb/hp) kinda supports my feeling that the margins are small. A full vs. empty tank of gas could swing the weight 50lbs. Anyway, my weight numbers are from Edmunds, though I do know my own C6Z came in at 3181. Granted the '12 could be a bit lighter than the 2011, but I dont have official curb weight specs.

But more importantly, beyond the specific cars in question, when you get into the realm of mid 11s or faster it takes more and more horsepower to gain less and less ET and trap speed, the relationship is less linear as well as other dynamics having a larger effect as well. The difference between a 13lb/hp car and 12lb/hp car is greater than the difference between a 9lb/hp and a 8lb/hp car despite both having a 1lb/hp difference. Im pretty sure you know this, but that is really why I think ~0.4 lb/hp is a slim margin... Not insignificant necessarily, but well within the proverbial "drivers race".

However, the over rev feature does change things I suppose, but how does the feature work? Can it over rev every gear in every situation? If so, and if the over rev feature can be used at will when one pushes it to 7K, then why not just advertise the redline and hp accordingly? If it is like the temporary overboost on some turbo cars then that is has its own considerations too, but I digress...

At any rate not arguing per se, just walking through my reasoning. I dont care enough to turn this into a C6Z comparo since I think the true glory days of this car was 3 or 4 years ago anyway, back when the GT500 still was anchored by an iron block engine. Besides, I agree with the fundamental point that the 2012 GT500 will run 11s anyway.