2008 ACR Stock dyno graph/video...

[FikseGTS]

Put my stock ACR on the dyno today, 1350 miles, put down 546 rwhp and 510 rwtq on a DynoJet 248.... video and dyno graph here:

Stock 2008 Dodge Viper ACR Dyno Sheet Details - DragTimes.com

he started the runs too high, but I don't think starting at 2k RPM's would have made a difference

Anyone else have a bouncy tach? towards top of the RPM range the tachometer bounces around, very annoying, hard to tell exactly where you are in the RPM range when it does it. It does this on the street as well, take a look at the latter half of the video, I put the camera on the tach, and you can see what I mean...

 

[ACR steve]

cool video- next time tell them to put 2 straps in the rear man that could be scarry

 

[MY600HP]

I couldn't see what you meant by a "bouncy" tach. Could it be you are simply hitting the 6400 rpm rev limiter and seeing the cut back to 6200 rpm and so on?

 

[SquadX]

I saw what you meant about the tach being bouncy. Looked to happed about 5400 or so. What does the car/acceleration feel like when this happens?

 

[adamlotus]

great numbers strongest stock gen 4 #rs i have seen so far

 

[jk]

There are two straps - look closer...

Great run. Maybe someday I will join that club.

cool video- next time tell them to put 2 straps in the rear man that could be scarry

 

[08ACRVTEN00GTS]

Headers & controller should be over 600 rwhp.

 

[FastGuy68]

Nice...F.Y.I. my 2006 Coupe's tach was bouncy from about 3K on up. I just never wanted to take it in and get it looked at bad enough I guess. I wonder if the new Mopar ECM having a more sensitive signal for the tach is to help solve that problem.

 

[Roysviper]

Very Nice....Good to see those numbers.... My tack works normally.

 

[FikseGTS]

don't notice anything with the power when it does this....

headers and exhaust coming when the tune is out....

I saw what you meant about the tach being bouncy. Looked to happed about 5400 or so. What does the car/acceleration feel like when this happens?

 

[ACRBruce]

My ACR w/ 3.55 rear end only dyno'd at 500 WHP at DC the other week, and I wonder how much less the car would show w/ 3.55 vs. the OEM 3.07 gear?

 

[FikseGTS]

autoblog....


Dodge Viper ACR on dyno: More power than advertised - Autoblog



.

 

[FikseGTS]

what are they getting from other ACR's on the same dyno?

My ACR w/ 3.55 rear end only dyno'd at 500 WHP at DC the other week, and I wonder how much less the car would show w/ 3.55 vs. the OEM 3.07 gear?

 

[Newport Viper]

Dynojet software....http://www.dynojet.com/downloads/manuals_new/Software_Manuals/98118103.02.pdf

1. Dave Cawthorne Gen 2 422.30/461.87 Modified
2 .Lance Kouchi Gen 2 397.43/440.11 Stock
3. Dave Kuzmiak Gen 3 444.28/472.65 Stock
4. Eddie Arguelles Gen 3 452.10/475.38 DC Tune
5. Steve Shaw Gen 4* 521.42/494.45 Stock
6. Norman Greitzer Gen 4 * 507.05/481.33 Stock
7. Angel Calderon Gen 3 424.34/443.57 Stock
8. Eddie Reinsma Gen 3 436.30/464.02 Stock
9. Steve Smoot Gen 3 658.65/580.85 Paxton
10. Kobi Sial Gen 4* 558.11/528.45 Headers
11.Chris Sienecki Gen 3 484.31/473.68 Headers
12. George Balejian Gen 3 405..95/449.72 Stock
13. Peter Hausherr Gen 2 426.09/466.80 Headers
14. Kaia Rexroad Gen 3 444.52/470.57 Stock
15. Sean Casey Gen4* 563.44/526.85 Headers
16. Adam Melikoff Gen 4* 515.32/482.67 Stock
17. Michael Burgoyne Gen 3 477.52/502.68 DC Tune/Headers
18. Mark Kasparoff Gen4* 523.95/481.24 Stock
19. Rick Hollis Gen 2 855.82/798.75 Paxton
20. ErnieTaylor Mustang 249.28/247.93 Stock
21. M. Greenberg Gen 2 636.17/562.37 Race Car


* 2008 Viper

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[Newport Viper]

My ACR w/ 3.55 rear end only dyno'd at 500 WHP at DC the other week, and I wonder how much less the car would show w/ 3.55 vs. the OEM 3.07 gear?

Bruce, I wrote the guys at dynojet and this is what they said about gears.....

Hello,

Would different gear ratio's on the same car effect the RWTQ and RWHP readings?

Thank you,


"Yes they can. Gears can affect the final drive out put. It may use more hp to accelerate the car than what did before. "







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