[ZR1] Prehaps first dyno numbers
#1
Drifting
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St. Jude Donor '05
Prehaps first dyno numbers
We got one on the dyno today (one of the ones in my pictures I posted yesterday) Preliminary numbers are 548rwhp and 53x rwtq. The AFR is off the chart rich (much richer than 10). This was done on a Dynojet 248 dyno. I'll let you guys know what it does tuned up.
#3
Melting Slicks
To be honest, that is a little lower than I was thinking. Are you just tuning the fuel/ timing curves or are you going to mess with the boost limit too?
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That comes to about 14.1% loss from engine to rear wheels. For a comparison, my 2006 Z06 dynoed at 457 rear wheel hp which comes to approximately 9.5% loss.
#6
Le Mans Master
14.1% loss on the ZR1 ... that's very close to the "rule of thumb" 15% loss. Just what I expected and predicted in some old debate threads on fwhp vs. rwhp losses.
#7
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St. Jude Donor '05
It just depends on the car. I have dynoed well over 20 C6 Zo6's and have seen some as low as 420-430rwhp. The thing about it though is all of them tune out to about the same number. You have some outliers and weather does play a role even with the dyno correction.
#8
Melting Slicks
Though, if you think about it the ZR1 with its beefed up drivetrain should have a little more loss than the Z06.
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To be honest, that is a little lower than I was thinking. Are you just tuning the fuel/ timing curves or are you going to mess with the boost limit too?
#13
Melting Slicks
#14
Le Mans Master
If they are all pig rich from the factory, then I could see picking up 10-20 more HP at the peak.
#15
Big power, as expected.
The first bone stock 2008 Viper (12 miles on car) also dynoed at high 540's rwhp. Torque was a tad less at 520 rwtq. Headers + full exhaust made 600 rwhp. Crazy power these cars have...
The first bone stock 2008 Viper (12 miles on car) also dynoed at high 540's rwhp. Torque was a tad less at 520 rwtq. Headers + full exhaust made 600 rwhp. Crazy power these cars have...
Last edited by Onerareviper; 09-20-2008 at 01:13 AM.
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SAE Corrected
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#20
I think tuning the car for more HP and adding the traditional mods could pose a problem for the car. From what I have read the temps could be a problem as HP increases. If you can tune it for 50 more HP that heat has to be dissipated. I wonder exactly how much heat the hood and panels can take as well.