4th Gen 1/4 mile times versus 5th Gen 1/4 mile times

[SubSolar]

The 5th gens are mile per houring a lot more than the 4th gens. Also, wait till you start modifying it, you have more cubic inches. If you want to know how well the LS3 is responding to mods, go to some Corvette forums.

[THE EVIL TW1N]

Originally Posted by SubSolar

The 5th gens are mile per houring a lot more than the 4th gens. Also, wait till you start modifying it, you have more cubic inches. If you want to know how well the LS3 is responding to mods, go to some Corvette forums.

I've only seen the MPH about ~2 more than what the LS1's were running. That's not a whole lot more.

[SubSolar]

Originally Posted by THE EVIL TW1N

I've only seen the MPH about ~2 more than what the LS1's were running. That's not a whole lot more.

Most of the stock LS1's were running 105-107 mph when new. GM High Tech Performance ran a 12.8@109 in a Z28, but that was with near freeing temperatures. I think there's a big diff between 110-111 and 105-107, but hey that's just me.

[THE EVIL TW1N]

Originally Posted by SubSolar

Most of the stock LS1's were running 105-107 mph when new. GM High Tech Performance ran a 12.8@109 in a Z28, but that was with near freeing temperatures. I think there's a big diff between 110-111 and 105-107, but hey that's just me.

it is just you, considering all the REAL track MPH's (non-magazine GPS track runs) from the 5th gen have been 107-108. My argument still stands.

[SubSolar]

Originally Posted by THE EVIL TW1N

it is just you, considering all the REAL track MPH's (non-magazine GPS track runs) from the 5th gen have been 107-108. My argument still stands.

My real world 2000 SS would only hit 104 mph, unless I powershifted.

[Rock36]

Originally Posted by SubSolar

Most of the stock LS1's were running 105-107 mph when new. GM High Tech Performance ran a 12.8@109 in a Z28, but that was with near freeing temperatures. I think there's a big diff between 110-111 and 105-107, but hey that's just me.

Even with the mph difference, there are differences that are non-hp specific that are to the advantage of a 4th gen...specifically smaller tires and a solid rear axle.

it is perfectly plausibile to have a car running a 13.1 @ 110 mph and another running 13.1 @ 107 mph.

Hell my car ran a 13.0 @ 105 mph...but there are reasons for that beyond just horsepower and weight.

That doesn't change my overall opinion that a 5th Gen is faster, I just think the 4th gen can still give it a run for its money.

[Treadstone]

You guys sure the 4th gen is 3300 lbs? That's close to Corvette weight.

But I agree, there are multiple times I have seen stock C4 Vettes (LT1 +) beat LS1 C5 Vettes in the 1/4.

On the road at 100+ though is where the difference is greater.

[shinzon]

I would be happy to run someone in NJ

[Foglin]

Originally Posted by CamaroSpike23

but as nineball said, the LS3 really opens up in the top end. the LS1 and LT1 motors both have their weak and strong points. not to mention the lower weight overall.

First time out on the track today, albeit lousy 60ft time, I managed to outrun a 4th gen equipped with drag radials (otherwise bone stock, I think), his 60ft time was 2.0, mine was 2,4 with wheels spinning. His trap speed was +100 at 13.9s and mine was 105 at 13.8s. mine was really pulling once I got it hooked.
Yes, I know, it's a lousy ET but anyway, I had a blast!
Just need to learn how to get out of the hole! (only got one Timed run as it was a "street legal race event" with arm drop starts (where one could buy a timed pass for 2 bucks, or 3 for 5!)).
tried to start with rpms between 1000 and 2000, 1500 to 1750 seemed to work best. otherwise I would either bog the engine or spin the tires too much.

[Speedfreak]

Originally Posted by Nine Ball

When you shift the car, the throttle blade momentarily closes down to 27% open, then ramps back up to 100%. Torque management. The computer does this to ensure that the transmission has more longevity. Consider torque management as "abuse management". But, it also hurts performance. With a custom tune, this can be reduced. In stock form, powershifting is relatively boring and feels no different than lift-n-shift since the throttle closes automatically.

Also, some of you guys are comparing the best possible LS1 and LT1 stock times to average and worst case Gen 5 times. Here is what we should be noting:

Assuming 100% showroom stock, on stock tires, stock curb weight:

1993-1997 LT1 4th Gen = 13.6 extreme case, 13.8 on the good side, 14.1 typical
1998-2002 LS1 4th Gen = 12.8 extreme case, 13.1 on the good side, 13.4 typical
2010 Camaro SS = 12.8 extreme case, 13.0 on the good side, 13.4 typical

I don't see 12.7s happening with the 100% stock tune or 100% stock 20" tires anytime soon. In negative DA weather, 12.9-13.0 no problem. In positive DA weather mid-13s will be the norm. In 2,000 ft DA weather even the 4th Gen LS1 cars run 13.5-13.7, not 12s.

I have not seen a 2010 run but the others are dead nut on.

[ls6 zo6]

I owned a 1998ss white ordered bone stock with ss package. hardtop,crank windows,no cruise no foglamps nothing. I street raced for two years before losing. It ran consistent 12.90 with a lid, and drag radials. Turned a personal best of 12.77 on a cold 45 degree march day. I still miss that car!

[shinzon]

My invite is still open.

[WayneE]

Originally Posted by Nine Ball

Also, some of you guys are comparing the best possible LS1 and LT1 stock times to average and worst case Gen 5 times.

I think this is the issue right now. There is so much data out there for LS1 4th-gens, but precious little available for the 5th-gens. Also, most people aren't racing in fall/winter -DA conditions, like most of us did with our 4th-gens. They're racing right now, in summer heat.

I had a 2001 WS6 TA. It ran 12.76@110.05 with a 1.92 short on drag radials (bog) in ~65 deg weather (I used the weather history on wunderground.com to get the temp) at MIR here in MD. I had 600 miles on the car at the time, still had paper tags on it. Timeslip

IIRC, the weight of the car was 3690 at the local truck scales.

I expect we'll start seeing 5th-gens down there once more guys get track time in the cooler weather on prepped tracks.

[S8ER01Z]

Originally Posted by Treadstone

You guys sure the 4th gen is 3300 lbs? That's close to Corvette weight.

But I agree, there are multiple times I have seen stock C4 Vettes (LT1 +) beat LS1 C5 Vettes in the 1/4.

On the road at 100+ though is where the difference is greater.

I just had my 2001 on a scale a few weeks ago. It was 3440lbs (full tank, full weight). 3600 with me in it.

I also dynoed two weeks ago with the free ram air mod being my only mod and made 322rwhp/341rwtrq on a land and sea 1200.

Bone stock at the same track speedy runs at I went 13.19 @ 108.59mph 2.1 60ft. I am confident that same day, same track I would be close on his tail but still lose the race. With the FRA mod I have I couldn't say for sure but I think it would be a rediculously close race.

I will post my dyno graph and weight pics tomorrow, it's a pita to do it from my iPhone.

Edit: As mentioned above...
Curb Weight (Nothing removed, full weight, full tank of gas)
2001 Camaro Z28 - 6 Speed


Dyno - Land and Sea 1200 - No Smoothing (I asked but they said it was disabled for tuning purposes)

The numbers to go with the chart...