Got a chance to dyno my LS3 Vette, 752hp/662trq
12-30-2010, 09:34 PM
#1
Staging Lane
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Got a chance to dyno my LS3 Vette, 752hp/662trq I finally got my Procharger on my Vette. I installed the same clutch at the same time so I was breaking it in for the past 2 weeks and doing some street tuning.
I did most of the tuning on the street with a wideband but the car was making good power and I couldn't hook on Invos, so I couldn't take it to redline.
Well after swapping out to a fresh set of plugs I strapped the car to the dyno for some final tuning.
First pull I pulled it to 5400RPMs and the car made 686hp.the AFR showed 14:1 but I had thought the dyno's wideband was fishy, so I swapped it out for a new 02. I added some fuel to compensate and sure enough the pull was dead rich. Shutting off at 6000 It made 721hp.
I took the fuel I added back out, set the timing at 14* peak and let it rip. AFR ended at 11.0:1 with the methanol active.. and the car made 752hp/662trq!!
To prolong the life of the shortblock, I decided that was enough for today.
Not bad for a D1 Procharger @ 10psi and some pump gas w/ meth!
Here's a quick video:
LS3 Procharger Dyno
And the dyno sheet:
And another dyno sheet for comparison's sake:
Since it's a little damp and humid as hell down in Houston, I can't get any traction whatsoever so I haven't gotten a chance to even enjoy the newfound power!
I did most of the tuning on the street with a wideband but the car was making good power and I couldn't hook on Invos, so I couldn't take it to redline.
Well after swapping out to a fresh set of plugs I strapped the car to the dyno for some final tuning.
First pull I pulled it to 5400RPMs and the car made 686hp.the AFR showed 14:1 but I had thought the dyno's wideband was fishy, so I swapped it out for a new 02. I added some fuel to compensate and sure enough the pull was dead rich. Shutting off at 6000 It made 721hp.
I took the fuel I added back out, set the timing at 14* peak and let it rip. AFR ended at 11.0:1 with the methanol active.. and the car made 752hp/662trq!!
To prolong the life of the shortblock, I decided that was enough for today.
Not bad for a D1 Procharger @ 10psi and some pump gas w/ meth!
Here's a quick video:
LS3 Procharger Dyno
And the dyno sheet:
And another dyno sheet for comparison's sake:
Since it's a little damp and humid as hell down in Houston, I can't get any traction whatsoever so I haven't gotten a chance to even enjoy the newfound power!
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12-31-2010, 01:59 PM
#10
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Very nice numbers for a very safe tune! I have similar #'s and similar mods but have to push north of 13# to get my #'s on my LS2, plus 18 degrees on the meth that gets reduced to 14 if it fails. My numbers were with the AFR in the 10's on the meth. I'm installing an Aeroforce Interceptor and will set up alerting for TPS > 90 and AFR > 12 and I will feel more comfortable leaning it out on the meth back to ~11.5:1 and I should be ~750ish then.
If you stick with the Invos I will drag your ***.
You need MT's or Nitto NT05R's at that power level.
If you stick with the Invos I will drag your ***.
You need MT's or Nitto NT05R's at that power level.
12-31-2010, 02:23 PM
#11
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Very nice numbers for a very safe tune! I have similar #'s and similar mods but have to push north of 13# to get my #'s on my LS2, plus 18 degrees on the meth that gets reduced to 14 if it fails. My numbers were with the AFR in the 10's on the meth. I'm installing an Aeroforce Interceptor and will set up alerting for TPS > 90 and AFR > 12 and I will feel more comfortable leaning it out on the meth back to ~11.5:1 and I should be ~750ish then.
If you stick with the Invos I will drag your ***. You need MT's or Nitto NT05R's at that power level.
If you stick with the Invos I will drag your ***.
You need MT's or Nitto NT05R's at that power level.
12-31-2010, 02:40 PM
#12
Staging Lane
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I talked to a few other Z guys and most of them swear by these new NT05R's over the MT's. I have always been a big Nitto fan so I think I'll give these 345 NT05R's a shot.
Where are you going to mount the Aeroforce? I cannot find a mounting solution that I like.. half of them look like crap and the other half you simply cannot drive a high HP car and see the gauge.
With these Invos the car just spins 1st 2nd and most of 3rd... if I roll into it around 70mph in 3rd it will start to move and then around 100mph it destroys the tires. No fun!
Where are you going to mount the Aeroforce? I cannot find a mounting solution that I like.. half of them look like crap and the other half you simply cannot drive a high HP car and see the gauge.
With these Invos the car just spins 1st 2nd and most of 3rd... if I roll into it around 70mph in 3rd it will start to move and then around 100mph it destroys the tires. No fun!
12-31-2010, 03:50 PM
#13
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Very nice numbers for a very safe tune! I have similar #'s and similar mods but have to push north of 13# to get my #'s on my LS2, plus 18 degrees on the meth that gets reduced to 14 if it fails. My numbers were with the AFR in the 10's on the meth. I'm installing an Aeroforce Interceptor and will set up alerting for TPS > 90 and AFR > 12 and I will feel more comfortable leaning it out on the meth back to ~11.5:1 and I should be ~750ish then.
If you stick with the Invos I will drag your ***. You need MT's or Nitto NT05R's at that power level.
If you stick with the Invos I will drag your ***.
You need MT's or Nitto NT05R's at that power level.
