Livernois C6 Head Swap Dyno Numbers
10-06-2004, 11:32 AM
#1
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Livernois C6 Head Swap Dyno Numbers Below is a graph of the Livernois Motorsports C6 shop car with the only mod being stock heads ported by Livernois.
For photos of the swap and before and after shots of the heads, please go Here
-Rick
For photos of the swap and before and after shots of the heads, please go Here
-Rick
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10-06-2004, 02:54 PM
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Originally Posted by OWENMUSTANG
329.5 is weak for a m6 car and high for an a4 car....
what trans?????????
sig says cam/headers/x pipe........
what trans?????????
sig says cam/headers/x pipe........
The C6 is an MN6 car, but those are actual "uncorrected" numbers.
The correction factor on the Dyno Jet takes relative humidity, intake air temperature, and absolute pressure into consideration and what we've seen is the IAT sensor not reading correctly and throwing off the data. For that reason, we run in "uncorrected" to make sure you the people don't get misled. If we run SAE correction, the numbers are higher, but they still show an approximate gain of 35 rwhp. The temperature on run one was 75 degrees, barometer was 29.7, and humidity was 25%. The second run was 78 degrees, barometer was 29.7 and relative humidity was 30%. We consider this a very close comparison and no matter how you look at it, it picked up power. If we looked at the Dyno Jet correction factors we would have noticed IAT values greatly different between runs. All values seen above were taken from our weather station.
-Rick
10-06-2004, 02:59 PM
#10
That is winpep. On the scroll tab at the top of the graph, make it SAE corrected.
That is how dynos are posted here with out being flamed for STD or Uncorrected numbers. Numerous shops have the Air temp sensor placed so that they do not need to do this.
That is how dynos are posted here with out being flamed for STD or Uncorrected numbers. Numerous shops have the Air temp sensor placed so that they do not need to do this.
Last edited by Louis; 10-06-2004 at 03:04 PM.
10-06-2004, 06:15 PM
#12
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Nice numbers, but your before dyno is way low for all the C6 dynos posted to date. I'm very skeptical that your heads gave you that much increase. 2002 and up Z06's don't see 35rwhp/35rwtq with just head porting/polishing(unless a cam swap has been done).
Todd
Todd
10-06-2004, 07:25 PM
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Originally Posted by WhiteDiamond
Nice numbers, but your before dyno is way low for all the C6 dynos posted to date. I'm very skeptical that your heads gave you that much increase. 2002 and up Z06's don't see 35rwhp/35rwtq with just head porting/polishing(unless a cam swap has been done).
Todd
Todd
Both runs were done in 4th gear, the car definitely feels a ton faster!
No cam swap yet since there is no tuning software. We did the valves and springs though.
My C5 picked up 100rwhp with Livernois stage 1 LS1 ported heads, 224/228 114 cam, longtubes, x-pipe and blackwing.
-Rick
10-06-2004, 10:13 PM
#16
Originally Posted by z98
Damn. Does that mean the new C6's are only putting down about 20 more RWHP than the best LS1 f-bodies?
I find that hard to believe.
I find that hard to believe.
10-07-2004, 04:18 AM
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Originally Posted by LS1LT1
Me too considering that there are at least 5 bone stock manual C6s out there that have dyno'd in the 355+ rwhp/rwtq range so far.
same here
10-07-2004, 05:27 AM
#18
well some cars are duds, some havent be broken in yet, and if you do the math they should only be in the 330-350 range with a 15% driveline loss. so yeah some of them will be low
