Close

    • NA Beast - Heads/Cam Gen V Dodge Viper with E85 tuning picks up 223 whp - 742 rwhp naturally aspirated Viper

      Who needs boost? Not this Viper. This is a naturally aspirated beast making over 700 horsepower to the tires. To put this in perspective a factory stock Gen V Dodge Viper 8.4 liter V10 produces 520 horsepower to the wheels on a Dynojet in SAE correction.


      Add in headers, a cam, heads, an exhaust, E85, and a Motec M1 and you get this:


      742 rear wheel horsepower and 645 lb-ft of torque at the wheels. This is a built motor example although a stock internal motor should not have too much trouble matching the numbers:

      Quote Originally Posted by Nth Moto
      This is on E85... we filled up again at our local station on Saturday and ethanol content was reporting 81% (E81). The car is running our Nth Moto MoTeC M1 firmware with flex fuel capability, so it can run anything from standard pump gas to full ethanol automatically. This has our built engine, heads, and R grind fixed cam. It also is running our Nth Moto fabricated race headers and high flow exhaust. It is rowdy, snotty, and not for everyone. That being said, it's downright awesome
      Imagine this paired with a 9.0 liter stroker motor:


      This article was originally published in forum thread: NA Beast - Heads/Cam Gen V Dodge Viper with E85 tuning picks up 223 whp - 742 rwhp naturally aspirated Viper started by Sticky View original post
      Comments 9 Comments
      1. 93siro's Avatar
        93siro -
        Amazing.

        The ecu on these is not tuner friendly from what ive seen. No?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 93siro Click here to enlarge
        The ecu on these is not tuner friendly from what ive seen. No?
        It is it's just not as friendly as a Motec.

        Bolt on tunes get over 600 whp on the factory ECU.
      1. SpeedLimit?'s Avatar
        SpeedLimit? -
        Fiat really made srt hold back on the potential of this beast...
      1. benzy89's Avatar
        benzy89 -
        Nth Moto = the tits

        Can't wait to see Anthony's TT-G get cut loose, they were teasing with some E85 tuning on their FB
      1. 93siro's Avatar
        93siro -
        Click here to enlarge Originally Posted by SpeedLimit? Click here to enlarge
        Fiat really made srt hold back on the potential of this beast...
        Thats a claim thrown around which is BS honestly. They couldn't improve on Viper without changing its philosophy. Gen V has fancy carbon fiber, kevlar and aluminum parts. Its fairly light, much lighter than a equivalent from Ferrari (F12). The chassis as good it gets. Its making more power per liter than any other OHV engine by a long shot, even than the mighty LS7 and no one said it was heldback engine. Yeah they could add cnc'd heads with lumpy cam etc... but it wouldnt be a street engine with low emissions.

        They could add forced induction, dct, and even make it lighter. For sure. But it would be a much more expensive sports car which doesnt share the same rawness and philosophy as a Viper.

        Bottom line is the only thing held Viper back is the lack of enthusiasts who just buy the damn thing. People always complain about how cars are not pure as before, they are soft and dont have that special feel they used to have. However, those guys only have themselves to blame.
      1. SpeedLimit?'s Avatar
        SpeedLimit? -
        Click here to enlarge Originally Posted by 93siro Click here to enlarge
        Thats a claim thrown around which is BS honestly. They couldn't improve on Viper without changing its philosophy. Gen V has fancy carbon fiber, kevlar and aluminum parts. Its fairly light, much lighter than a equivalent from Ferrari (F12). The chassis as good it gets. Its making more power per liter than any other OHV engine by a long shot, even than the mighty LS7 and no one said it was heldback engine. Yeah they could add cnc'd heads with lumpy cam etc... but it wouldnt be a street engine with low emissions.

        They could add forced induction, dct, and even make it lighter. For sure. But it would be a much more expensive sports car which doesnt share the same rawness and philosophy as a Viper.

        Bottom line is the only thing held Viper back is the lack of enthusiasts who just buy the damn thing. People always complain about how cars are not pure as before, they are soft and dont have that special feel they used to have. However, those guys only have themselves to blame.
        No one can tell me that claim is BS with the amount of power left of the table without adding forced induction. Furthermore, the amount of trim levels offered leaves me to suspect that they weren't given free reign to make the car as upmarket as they wanted hence being left with a car that couldn't out run a C6 ZR-1. The engineers at SRT seemed more than willing and able to throw the kitchen table at it like they do over at Chevy who promotes in house rivalries to get the most out of their performance car but when you're under the Fiat umbrella with people like Ferrari who demand to be the best by limiting the competition that's not possible. If i'm wrong ask Maserati Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 93siro Click here to enlarge
        Thats a claim thrown around which is BS honestly. They couldn't improve on Viper without changing its philosophy. Gen V has fancy carbon fiber, kevlar and aluminum parts. Its fairly light, much lighter than a equivalent from Ferrari (F12). The chassis as good it gets. Its making more power per liter than any other OHV engine by a long shot, even than the mighty LS7 and no one said it was heldback engine. Yeah they could add cnc'd heads with lumpy cam etc... but it wouldnt be a street engine with low emissions.

        They could add forced induction, dct, and even make it lighter. For sure. But it would be a much more expensive sports car which doesnt share the same rawness and philosophy as a Viper.

        Bottom line is the only thing held Viper back is the lack of enthusiasts who just buy the damn thing. People always complain about how cars are not pure as before, they are soft and dont have that special feel they used to have. However, those guys only have themselves to blame.
        Is it BS though: http://www.dodgeboost.com/content.ph...iper-ACR-model

        The SRT CEO stated they were not allowed to exceed a certain power to weight ratio. Why do you think the ACR didn't get a power boost but only suspension, aero, and wheel/tire tweaks?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 93siro Click here to enlarge
        Bottom line is the only thing held Viper back is the lack of enthusiasts who just buy the damn thing. People always complain about how cars are not pure as before, they are soft and dont have that special feel they used to have. However, those guys only have themselves to blame.
        Agree with this 100%.
      1. Sticky's Avatar
        Sticky -
        Listen to what this thing sounds like: