If both cars where stock given decent drivers from a roll what would the outcome be? Just curious because I havent had the chance to run a LS3. My car is far from stock but I wanna know how they compare stock?

 

Well...seeing as how the LS2 stock is faster than the LS3 stock, and the LS2 can't seem to take down,stock for stock, C5Zs on a regular basis, I'd say the C5Z is faster, stock for stock,driver for driver.

 

Thats what I was thinking. What are the dyno numbers on a LS3 to the wheel on average? I know dyno numbers dont mean anything but I was just curious.

 

I have a stock C5Z anyone with an stock LS3 C6 wanna compare?

 

I think the LS3 will be quicker as more people break them in and get more time at the strip. I know the LS2's are quicker than the 3's but they've been around longer and more people have them. Just wait a year and I'm sure the stock times will drop on the LS3's. As for the original question...C5Z all the way!!

 

I figured that the C5Z would take it. So the LS2's are quicker than the LS3's? How is that possible when its the same car and the LS3 makes more power?

 

apparently they are restricted because of torque management. I've always known that the automatics always had them but not the manuals. Then again it is GM. There is a thread on the vetteforum about this. A guy said he has driven both cars and the C5Z06 come out on top in the 1/4 mile drag racing. Stock vs stock.

 

LS3 A6's put down around 370 rwhp and M6's are 385ish.

 

C5Z, no matter if the other car has boost. It's the looks that make the difference hahaha.

seriously: The C5Z should just eek it for a while, but after the 4-5 change, it's the LS3's time to pull.

 

LS3 for me! just dont think they would make more power on it for it to be beaten by a previous model. just my $.02

 

Well I could take the LS2 hands down. I just wanna know how the LS3's compared up to the LS6.

 

Your $.02 is worth $100.00 in my book buddy!!

Sure there are 1/4 mile lists out there, but the OP wants to know what would happen if 2 equal drivers had at it on the same day from a roll. This would eliminate driver advantage, Killer DAs that those in the killer DAs like to ignore, and it would simply come down to HP and weight.

A base model stock LS3 weighs about 3200 pounds, maybe 100 more then the C5Z. Please correct me on the weight here if I'm off a bit. The LS3 has 430 HP while the C5Z has 405. That's 25 more HP to make up the weight difference. The Z51 LS3 has some nice gearing on the tranny, so I'd say it would be a good race, but I'll give the edge to the LS3!!

For those who really believe that the LS2 would take an LS3 from a roll, even though it has 30 to 36 HP more, all I can say is to just make sure that the LS3 has a passenger in the 350+ pound range!!


As far as a C5 Z06 vs a LS3, here's a drag race with a blown C5Z against a LS3 with headers, intake, exhaust, and a tune on 95 octane.

http://www.corvettekillstories.com/p...s/C5SCvsC6.wmv

 

I've personally seen a '04 Z06 run a '08 Z51. It’s damn near dead even up to 120 MPH and then the LS3 slowly started to pull away. Maybe 1/2 car from 120 to 150. Both cars were stock down to the air filter. We actually ran 3 cars wide and I was the 3rd car....that’s how I got such a good look at it.

It was from a 25 MPH roll on the freeway at 5 AM on the way to the Grand Canyon with a Corvette club.

 

That's exactly what I would have thought would happen. + bolt-ons to both cars and forget about it, the C5Z is toast.

 

Is there alot out on the market for the LS3 yet? What kinda 1/4 mile times are yall seeing/getting out of them?

 

Prove it because I have seen dynos that have the LS3 putting down 380+ rwhp stock. Both the LS2 and LS3 have that torque management problem but I would bet money the LS3 would come out on top especially at 80+.

 

Prove what? Yes, the LS3 puts down more rear wheel hp and tq than the LS2...god, I've been over this a billion times....The TM parameters are the same in both cars, that being said , the LS3's torque comes on earlier and lasts longer than the LS2...no prob there, but that also means TM is applied earlier and in a higher % since there is more torque being read by the computer. TM pulls up to 14 degrees of timing for up to .4 tenths of a second (these are max values) during a solid launch and positive shifts(not getting sideways,AH would take care of that issue if it was on), while this safety measure may save the componets of the car, it kills the power by quite a bit. Alot of TM can be avoided by doing those silly "roll races" and having tires with bad traction, because less torque is read by the computer when you're moving and the tires are spinning than with launches and dead hook situations. I hope that explains it, but in layman's terms, the LS2 is just faster than the LS3 to this date and no bitching or moaning can change the facts,nor can people saying there hasn't been enough passes at the track with these cars. Alot of the problem now is getting anyone with a bone stock LS3 to try and make decent runs because they all mod the second they get them because they don't want to lose to an LS2. If you wanna reference "roll racing", then the LS3 should pull away by 95-105MPH if the race started from ,say, 50-60MPH. I can't see the LS3 getting more than 1/2 to 1 car away from the LS2 by 140MPH and it's possible the LS2 may sneak back up a bit by 160-170MPH. The C5Z would be in front of both of them by 1-2 cars by 150MPH. Thats , of course, my hypothesis on a hypothetical LS2/LS3/LS6Z race.

 

there's just as much out for the LS3 as there is for the LS2. As for times, the LS2s lead the way in stock/bolt on/poweradder/internal modification classes. The only class in which they're even close is bolt ons, where the LS3 seems to excel on the dyno , yet still falls a bit short at the track, even with drs.....

 

edit*

answered my own question.

 

I have no doubt from a roll an LS3, stock for stock or mod for mod will win vs an LS2 but running with the top down in that video.? Then there's an ad for Torco??? Half the time it looks like the Vette with the top down isn't racing and you just go zooming by. That's just an odd video.