2011 GT dyno results...
Can you really say the car picked up a full second, or was it the driver or that run?
.1 on the 60ft is worth .2 in the 1/4.
I also picked up full second while changing a tune at the track from my previous run, did the car really pick up a full second? definitely not.
livernois ran damn near 14 seconds and then 14 seconds on that camaro stock, don't you find that odd?
l99 camaro's have 400hp and all they run is 14 seconds? really? lol you don't watch for weird stuff like that do you?
.1 on the 60ft is worth .2 in the 1/4.
I also picked up full second while changing a tune at the track from my previous run, did the car really pick up a full second? definitely not.
livernois ran damn near 14 seconds and then 14 seconds on that camaro stock, don't you find that odd?
l99 camaro's have 400hp and all they run is 14 seconds? really? lol you don't watch for weird stuff like that do you?
The L99 Camaro in stock form doesn't perform well at the track. With all of the torque management, it wouldn't even do a burnout or let you put it on the converter plus it was very hot that day. I drove the car during the baseline and during the post tune test and it made worlds of difference. There were a few other L99's at the track that day running the same numbers in stock form.
Regards,
Rick LeBlanc
Livernois Motorsports
Strong numbers from the new 5.0. Should make things interesting. Sounds like they finally have a platform that is solid N/A and would excel with full bolt ons and a power adder!
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We tuned that Mustang last week and I guarantee it would beat the Camaro and our SHO now. It actually laid down numbers we typically see from an LS3 Camaro with headers, CAI, and tune.
The L99 Camaro in stock form doesn't perform well at the track. With all of the torque management, it wouldn't even do a burnout or let you put it on the converter plus it was very hot that day. I drove the car during the baseline and during the post tune test and it made worlds of difference. There were a few other L99's at the track that day running the same numbers in stock form.
Regards,
Rick LeBlanc
Livernois Motorsports
The L99 Camaro in stock form doesn't perform well at the track. With all of the torque management, it wouldn't even do a burnout or let you put it on the converter plus it was very hot that day. I drove the car during the baseline and during the post tune test and it made worlds of difference. There were a few other L99's at the track that day running the same numbers in stock form.
Regards,
Rick LeBlanc
Livernois Motorsports
Launching!
Joined: Apr 2010
Posts: 203
Likes: 1
From: Greenhaven/ South Sacramento 'Burbs
I am a true ls guy, love the engines, love the cars, but that new mustang has the new camaro beat all day long. They's have to offer an ls7 or ls9 motor in a new camaro to even remotely get me interested in buying one, and they'd have to do that, at the same price the SS is selling for.
TECH Resident
Joined: Nov 2001
Posts: 908
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From: Knoxville, TN
Question for you: On a tuned 5.0 with rev limiter bumped up several hundred rpm, the HP seems to drop off after ~6800 rpm much faster than one would reasonably expect - and in what appears to be an abnormally linear fashion. I've seen this similar phenomena in all the "tuned" 5.0s that have been posted on the various forums. Any idea what might be causing this?
Thanks!
Bob
Hmmm...a mile though really? 6M '11 GT vs 6M LS3 SS seems to be a pretty close race with the GT having a slight edge.
Don't take anything away from the LS3. It's an awesome engine, as proven in the Base '08-up Corvette. The problem here is the '10 SS's 3800lb+ curb weight.
Don't take anything away from the LS3. It's an awesome engine, as proven in the Base '08-up Corvette. The problem here is the '10 SS's 3800lb+ curb weight.
And believe me when I say I've talked a long conversation with someone that's WAAYYYY up the ladder in GM about this issue, and I'm anxiously awaiting what he finds can be done, and when it will be, if ever.
Believe me, I'm an ls fan, have had the h/c setup on an ls1, had the 402 ls2 stroker, have an ls7 headed 6 litre setup now that should be well into the 750 hp at the crank level, before I start putting about 250 hp of nitrous to it... The ls motor's make great power, but when you put that in a 2 ton sled, it doesn't do you any good. Plus the IRS... that's a total fail.
Launching!
Joined: May 2010
Posts: 274
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Are the new GTs safe to spin that high to 7500rpms? Can the bottom end handle it?
Last edited by 427LS7HCI; Jun 23, 2010 at 03:47 PM.
Thread Starter
Joined: Jan 2008
Posts: 2,295
Likes: 11
From: Central Florida
Yes, I've followed this on another Forum. Most impressive gains for sure.
Question for you: On a tuned 5.0 with rev limiter bumped up several hundred rpm, the HP seems to drop off after ~6800 rpm much faster than one would reasonably expect - and in what appears to be an abnormally linear fashion. I've seen this similar phenomena in all the "tuned" 5.0s that have been posted on the various forums. Any idea what might be causing this?
Thanks!
Bob
Question for you: On a tuned 5.0 with rev limiter bumped up several hundred rpm, the HP seems to drop off after ~6800 rpm much faster than one would reasonably expect - and in what appears to be an abnormally linear fashion. I've seen this similar phenomena in all the "tuned" 5.0s that have been posted on the various forums. Any idea what might be causing this?
Thanks!
Bob
As I recall Ford uses forged cranks in all the 4V applications, short of the A4 MachI's, and considering its rpm potential in pure stock form, I would have no concerns revving this thing like that on a regular basis.
TECH Resident
Joined: Nov 2001
Posts: 908
Likes: 0
From: Knoxville, TN
I would attribute that to the nature of the VCT design.
As I recall Ford uses forged cranks in all the 4V applications, short of the A4 MachI's, and considering its rpm potential in pure stock form, I would have no concerns revving this thing like that on a regular basis.
As I recall Ford uses forged cranks in all the 4V applications, short of the A4 MachI's, and considering its rpm potential in pure stock form, I would have no concerns revving this thing like that on a regular basis.
Thanks.
Bob
Mike, are you guys altering the cam phasing on the intake and exhaust in your tuning? I can see big opportunities to extend top end power like we do with the L99 engines (phasing VVT).
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Thread Starter
Joined: Jan 2008
Posts: 2,295
Likes: 11
From: Central Florida
I'll check with the tuner tomorrow to see if this is just intake or both intake and exhaust tuning.
Staging Lane
Joined: Oct 2007
Posts: 52
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From: Wichita Falls, TX
Nice numbers, Mike. Those new 5.0's definitely have potential. I figured we would have seen some supercharged numbers by now, but i guess no one sees the need for one just yet. I like both the new GT and SS. Seeing as how I can't afford either though, I'll just keep dreaming, lol.
TECH Resident
Joined: Nov 2001
Posts: 908
Likes: 0
From: Knoxville, TN
Though many will do it, I wouldn't put a blower on the 5.0 (or the LS3/L99 for that matter). To little margin for error with the high compression and cast pistons.
To each their own, of course, I have little doubt I'm in the minority.
To each their own, of course, I have little doubt I'm in the minority.