[John Hennessey]

Here is the dyno sheet.

 

[diabolos88]

$$$$??

 

[JGK95]

Now THAT IS AWESOME!!

John,

Whats the most you've ever done for a Gen II?

 

[BigCarrot]

DAMN!!!!

 

[Anthony - 98 GTS]

Now THAT IS AWESOME!!

John,

Whats the most you've ever done for a Gen II?

Last time I dynoed all motor - 649 RWHP. We have since done a little more head work and expect around 660 RWHP. :nod:

 

[DJ Self]

Yes, That is awesome. :thumb:

 

[Cody]

That's awesome John :nod:

 

[HIBOOST]

SWEET!! :bowdown:

 

[JGK95]

Last time I dynoed all motor - 649 RWHP. We have since done a little more head work and expect around 660 RWHP. :nod:

Anthony,


You Sir, Have my Respect!! I've always believed that the Viper V-10 was more than capable of 600+ NA. I looked at Ford's V-10 that was hitting over 600+ with race gas and was in disbelief that they could hit the figure and Dodge Couldn't.

Thank you.

BTW, would you list what you've done? Hardened internals? Head work machining on the outflow? Manley and Oliver components?


Thanks,

Jay K.

 

[Martin D]

My Venom also makes 650/650 on motor.... Just a bit more area under the curve than the graph John has posted.

Regards,

 

[SylvanSRT]

to repeat the question $$$$$ ???

 

[TX WHOS YOUR DADDY]

Here is the dyno sheet.

BIG BREEZE... GREAT NUMBERS!FROM THE LOOKS OF THE DYNO SHEET IT APPEARS U ARE RUNNING A STOCK COMPUTER AND MAYBE JUST A VERY SMALL BIT ON THE RICH SIDE.IF THAT IS THE CASE YOU HAVE A FEW MORE HORSES TO BE GAINED. WHAT IS YOUR A/F RATIO? :rofl:

:dance:

 

[TX WHOS YOUR DADDY]

Last time I dynoed all motor - 649 RWHP. We have since done a little more head work and expect around 660 RWHP. :nod:

KEEP US INFORMED!GO ANTHONY! :thumb: :rofl:

:dance:

 

[GARY J]

Those are a couple of badass all motor cars for sure... :stupid:

 

[KRAZYPSI]

Those are a couple of badass all motor cars for sure... :stupid:

I'd say!!! :nod: :thumb:
-------------------------------------------------------------------------------
2003 SRT-HEFFNER TWINTURBO "1040RWHP&1135RWTQ"
1999 DIABLO VT-HEFFNER TWIN SUPERCHARGED "620hp&740tq"
2005 MERCEDES CL65-HEFFNER MODIFIED&TUNED "650HP&830TQ"
2005 MURCIELAGO HEFFNER TWINTURBO(SOON TO BE ANNOUNCED)
2005 AUDI A8 (STOCK WITH THE EXCEPTION OF 20INCH HRE'S)
2006 RANGE ROVER SUPERCHARGED
1970 CUDA (VIPER MOTOR,BAER BRAKES,RECAROS,20INCH WHEELS,COILOVERS)
2006 MERCEDES CLS55

 

[snkbite97]

I still dont see a response to the ? of costs? And what mods were done to achieve those sweet #'s

 

[DDIGGLER]

Great work John. As if we didn't already know who the king of Vipers was.

 

[John Hennessey]

I still dont see a response to the ? of costs? And what mods were done to achieve those sweet #'s

Here is what the package includes, test numbers at the track on street tires and cost:

http://www.hennesseyperformance.com...dtjw&DoThis=Dodge+Viper+SRT10&ActionReq=Where

 

[JGK95]

I can't believe that MOTOR Trend was That Nice to a American Car, much less the Viper!!

Okay John, Who'd you pay off! :lol:

Congrats on the Amazing work. :nod:

Jay K.

 

[blk04cobra1]

that's awesome work...congrats...only thing I dont understand is why someone would wanna do that when they could spend about $15k more and get 1000rwhp? $15k and 400 more rwhp sounds like a good idea to me :thumbs2: