Z51 A6 NPP dyno'd today...
Thread Starter
Scraping the splitter.
Joined: Jun 2005
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St. Jude Donor '13-'14-'15
Z51 A6 NPP dyno'd today...
Today in between breaks in the clouds, I ran the car up to Tune Time Performance in Lakewood to throw it on the dyno.
Car has ~260 miles on it.
It made 379rwhp/380rwtq (SAE corrected) on a Mustang Dyno through the 6-speed automatic in "Tr" with the flaps open.
Tune Time's dyno is stingy, as are many Mustang Dynos. According to the owner Matt, C6 Z06's dyno ~428 rwhp, C6 ZR1's ~500 rwhp and an A6 GS with CAI did 367 rwhp on his dyno. Of note, Matt logged the car during the pulls and noted that it is very rich from the factory and only has ~16* of timing (LS3's typically have ~24*). He feels there is quite a bit in just a tune.
https://www.facebook.com/TuneTimePerformance
I took a couple of videos, but in compressed format so they could be MMS'd and they aren't very good quality.
S.
Car has ~260 miles on it.
It made 379rwhp/380rwtq (SAE corrected) on a Mustang Dyno through the 6-speed automatic in "Tr" with the flaps open.
Tune Time's dyno is stingy, as are many Mustang Dynos. According to the owner Matt, C6 Z06's dyno ~428 rwhp, C6 ZR1's ~500 rwhp and an A6 GS with CAI did 367 rwhp on his dyno. Of note, Matt logged the car during the pulls and noted that it is very rich from the factory and only has ~16* of timing (LS3's typically have ~24*). He feels there is quite a bit in just a tune.
https://www.facebook.com/TuneTimePerformance
I took a couple of videos, but in compressed format so they could be MMS'd and they aren't very good quality.
S.
Drifting
Joined: May 2002
Posts: 1,479
Likes: 42
From: Dallas / Ft. Worth The Republic of TEXAS
So it made about 20rwhp over a C6 Z51 
Torque falls off a cliff at 4800rpm's
I drove one yesterday for the first time - it definitely lacks top end power and was quite unimpressive. Low end was great around town but running the car hard it just felt really flat running through the gears at higher rpm's. Too bad the heads have to be pulled and the lifters replaced to do a cam job on the C7
Hopefully they will do a better job with the Z07 or whatever is ends up being...
Torque falls off a cliff at 4800rpm's
I drove one yesterday for the first time - it definitely lacks top end power and was quite unimpressive. Low end was great around town but running the car hard it just felt really flat running through the gears at higher rpm's. Too bad the heads have to be pulled and the lifters replaced to do a cam job on the C7
Hopefully they will do a better job with the Z07 or whatever is ends up being...
Team Owner
Joined: Feb 2013
Posts: 22,598
Likes: 14,557
Timing doesn't surprise me at all. The more efficient a combustion chamber is the less timing it needs. Old school SBCs run low 30s timing, but as you saw LS motors run low/mid 20s. Now you've got this new LT motor in the teens.
Thread Starter
Scraping the splitter.
Joined: Jun 2005
Posts: 8,111
Likes: 1,029
St. Jude Donor '13-'14-'15
So it made about 20rwhp over a C6 Z51
Torque falls off a cliff at 4800rpm's
I drove one yesterday for the first time - it definitely lacks top end power and was quite unimpressive. Low end was great around town but running the car hard it just felt really flat running through the gears at higher rpm's. Too bad the heads have to be pulled and the lifters replaced to do a cam job on the C7
Hopefully they will do a better job with the Z07 or whatever is ends up being...
Torque falls off a cliff at 4800rpm's
I drove one yesterday for the first time - it definitely lacks top end power and was quite unimpressive. Low end was great around town but running the car hard it just felt really flat running through the gears at higher rpm's. Too bad the heads have to be pulled and the lifters replaced to do a cam job on the C7
Hopefully they will do a better job with the Z07 or whatever is ends up being...
And the 22whp delta between the C7 and the A6 C7 was with the C6 modded with a CAI and I believe a tune.
S.
S.
Melting Slicks
Joined: Mar 2005
Posts: 2,534
Likes: 118
From: Columbia, SC
Race Director
Joined: Nov 2004
Posts: 15,678
Likes: 1,098
From: birmingham Alabama
St. Jude Donor '09 and '13
So it made about 20rwhp over a C6 Z51
Torque falls off a cliff at 4800rpm's
I drove one yesterday for the first time - it definitely lacks top end power and was quite unimpressive. Low end was great around town but running the car hard it just felt really flat running through the gears at higher rpm's. Too bad the heads have to be pulled and the lifters replaced to do a cam job on the C7
Hopefully they will do a better job with the Z07 or whatever is ends up being...
Torque falls off a cliff at 4800rpm's
I drove one yesterday for the first time - it definitely lacks top end power and was quite unimpressive. Low end was great around town but running the car hard it just felt really flat running through the gears at higher rpm's. Too bad the heads have to be pulled and the lifters replaced to do a cam job on the C7
Hopefully they will do a better job with the Z07 or whatever is ends up being...
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Thread Starter
Scraping the splitter.
Joined: Jun 2005
Posts: 8,111
Likes: 1,029
St. Jude Donor '13-'14-'15
Any graph can be made to look flat or "fall off a cliff" depending on the vertical scaling. Change the increments, and you change the curve. What you need to do to compare is to determine % trq/hp increase/decrease per unit RPM (100rds on horizontal scale) to see how drastic the change is.
S.
Melting Slicks
Joined: Mar 2005
Posts: 2,534
Likes: 118
From: Columbia, SC
Just build an excel spread sheet with your data and play with the axis and you'll see what I'm talking about. You can make graphs look any way you want by changing the scaling, so it pays to look at the % change to see what is really going on. Just look at the Redline graph and you can see what I'm talking about. They use 50 unit scaling on both axis, but the horizontal scale is stretched out more than the vertical (rectangle grid vice square grid). Square that scaling up and see what the curve looks like; much more drastic change in the vertical, but the numbers are still the same. The graph of your dyno curve is actually exaggerated in the vertical (38hX40v) so it makes your curve look like it's "falling off a cliff". It's all for presentation and effect. 
Thread Starter
Scraping the splitter.
Joined: Jun 2005
Posts: 8,111
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St. Jude Donor '13-'14-'15
http://forums.corvetteforum.com/1584638960-post20.html
But I guess you think we should.
S.
Burning Brakes
Joined: Jan 2008
Posts: 1,005
Likes: 1
From: springfield MO
Nobody in this thread cares about your weak-*** 335i.
http://forums.corvetteforum.com/1584638960-post20.html
But I guess you think we should.
S.
http://forums.corvetteforum.com/1584638960-post20.html
But I guess you think we should.
S.
Im not taking anything away from your car man so calm down. I love your car and think those are awesome numbers for being stock. Im definitely jealousBtw, my 335i will still walk your car even if it was cammed
Thread Starter
Scraping the splitter.
Joined: Jun 2005
Posts: 8,111
Likes: 1,029
St. Jude Donor '13-'14-'15
Who cares? And what does that have to do with this thread?
Btw, my 705 whp '12 GT-R will drag that 335i down the road like a rented mule. My 816 rwhp Cobra will drop kick it into next week and my 868 rwhp 'notch will drop it like a bag of dirt. You 'might' be able to keep up with my stock '13 GT500 or GT-R. Somebody's always faster. Goodbye now.
S.
Btw, my 705 whp '12 GT-R will drag that 335i down the road like a rented mule. My 816 rwhp Cobra will drop kick it into next week and my 868 rwhp 'notch will drop it like a bag of dirt. You 'might' be able to keep up with my stock '13 GT500 or GT-R. Somebody's always faster. Goodbye now.
S.
Burning Brakes
Joined: Jan 2008
Posts: 1,005
Likes: 1
From: springfield MO
Who cares? And what does that have to do with this thread?
Btw, my 705 whp '12 GT-R will drag that 335i down the road like a rented mule. My 816 rwhp Cobra will drop kick it into next week and my 868 rwhp 'notch will drop it like a bag of dirt. You 'might' be able to keep up with my stock '13 GT500 or GT-R. Somebody's always faster. Goodbye now.
S.
Btw, my 705 whp '12 GT-R will drag that 335i down the road like a rented mule. My 816 rwhp Cobra will drop kick it into next week and my 868 rwhp 'notch will drop it like a bag of dirt. You 'might' be able to keep up with my stock '13 GT500 or GT-R. Somebody's always faster. Goodbye now.
S.
Racer
Joined: Jul 2012
Posts: 497
Likes: 2
Who cares? And what does that have to do with this thread?
Btw, my 705 whp '12 GT-R will drag that 335i down the road like a rented mule. My 816 rwhp Cobra will drop kick it into next week and my 868 rwhp 'notch will drop it like a bag of dirt. You 'might' be able to keep up with my stock '13 GT500 or GT-R. Somebody's always faster. Goodbye now.
S.
Btw, my 705 whp '12 GT-R will drag that 335i down the road like a rented mule. My 816 rwhp Cobra will drop kick it into next week and my 868 rwhp 'notch will drop it like a bag of dirt. You 'might' be able to keep up with my stock '13 GT500 or GT-R. Somebody's always faster. Goodbye now.
S.
Race Director
Joined: Mar 2008
Posts: 12,413
Likes: 502
From: Rio Rancho NM
Who cares? And what does that have to do with this thread?
Btw, my 705 whp '12 GT-R will drag that 335i down the road like a rented mule. My 816 rwhp Cobra will drop kick it into next week and my 868 rwhp 'notch will drop it like a bag of dirt. You 'might' be able to keep up with my stock '13 GT500 or GT-R. Somebody's always faster. Goodbye now.
S.
Btw, my 705 whp '12 GT-R will drag that 335i down the road like a rented mule. My 816 rwhp Cobra will drop kick it into next week and my 868 rwhp 'notch will drop it like a bag of dirt. You 'might' be able to keep up with my stock '13 GT500 or GT-R. Somebody's always faster. Goodbye now.
S.
Last edited by Chicago1; Oct 8, 2013 at 07:13 PM.
