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    Very interesting MT article (yeah I know it's a...

    Very interesting MT article (yeah I know it's a LS7 engine not Viper's, but still)

    https://www.motortrend.com/how-to/1811-build-de-stroked-ls7-for-high-rpm-road-racing/

    Very decent 400lbs...
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    Yes and I wouldnt be surprised to see differences...

    Yes and I wouldnt be surprised to see differences sunny/cloudy of 2-3 decibels. I've been allowed and kicked out of the same racetrack with the same car but different weather. That is why you better...
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    Not exactly. Lower frequencies are...

    Not exactly.

    Lower frequencies are definitively picked up by the mic, from the other side. It's sure adding to the total SPL reading. If you could silent the side measured, you would absolutely...
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    To sum it up: If it's a 4,000rpm test with a...

    To sum it up:

    If it's a 4,000rpm test with a yard stick (we don't have that in Canada) your best bet is to use a resonator that is very efficient in the 250-500hz band. Basically the car will be...
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    Also interesting to note that I got a SPL reading...

    Also interesting to note that I got a SPL reading of 115.2 db at cold start (the first second when I started the engine), then quickly dropped to 113db then 107db once warmed up. That is a big...
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    49562 49563 Ok so I did a sound test...

    49562


    49563



    Ok so I did a sound test using my calibrated pro RTA and mic.

    1 meter distance pretty close to the ground (as pictured)
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    I have a 92db limit here on my local racetrack...

    I have a 92db limit here on my local racetrack and it doesnt mean it's more restricted than his 105db limit, because it all depends of the distance where the mic is (and peak frequency). If measured...
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    My Vibrant 7'' (3.5 in/out) straight through race...

    My Vibrant 7'' (3.5 in/out) straight through race muffler did basically.... almost nothing.

    They advertise 4db reduction but I doubt that. Probably 4db in a very limited frequencies band, and not...
  9. Unfortunately not, I'm still waiting for my race...

    Unfortunately not, I'm still waiting for my race engine to be ready (head porting is taking forever...)

    I'm using right now (stock engine) M&M headers + high flow cats + custom straight through...
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    7db (8-9db to be safe) reduction is a lot. You'd...

    7db (8-9db to be safe) reduction is a lot. You'd be lucky to get that with high flows only but not impossible. Oem cats are a safer bet
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    yummy, a canadian ACR, the finest of them all ...

    yummy, a canadian ACR, the finest of them all

    ;-)
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    plug-in hybrid Viper would be interesting but...

    plug-in hybrid Viper would be interesting but 100% EV? uhmmm nope.

    also any Viper without a huge N/A engine would be kind of weird. And that's both out of phase with our era, so...
  13. SpaceX kind of stuff haha

    SpaceX kind of stuff
    haha
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    Not sure the price of gas nor the electric car...

    Not sure the price of gas nor the electric car era will negatively affect the Viper (or any vintage ICE) market, unless they are banned of being used on the road. Might eventually happen, but in big...
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    probably the lower cost Vipers (gen2 and 3) that...

    probably the lower cost Vipers (gen2 and 3) that will double up in value first. As I don't see any ACR's gen5 reaching 1 million before 10-20 years
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    ... also PLEASE 3,200lbs carbon/aluminum N/A...

    ... also PLEASE

    3,200lbs carbon/aluminum
    N/A V10 7-8.0 liters 700hp+ @ 7,000rpm
    RWD obviously
    Manual transmission (at least as an option)
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    Yes pretty much. I would rather see a Gen 6...

    Yes pretty much.

    I would rather see a Gen 6 with design inspiration from the Gen3/4 ... and convertible ;-)
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    I don't want to sound pessimist but I expect some...

    I don't want to sound pessimist but I expect some major economic crisis in this decade. Which, ironically, might not affect the potential buyers of a garage queen '17 ACR-E ....
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    Also, important to point out: there is two types...

    Also, important to point out: there is two types of Vipers

    A) The very low-mileage pampered garage queen
    B) The used and driven sports car

    I think value of A) will keep climbing up no matter...
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    Dodge completed just over 31,850 Viper (from 1992...

    Dodge completed just over 31,850 Viper (from 1992 to Feb 2016) and for the sake of comparison Porsche delivered 67,535 of the 993 Generation of the last air-cooled 911 (a generation that was produced...
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    Not bad, not bad..

    Not bad, not bad..
  22. Thanks for the tips, I will pass the info to my...

    Thanks for the tips, I will pass the info to my mechanics. As I undestand the canisters needs to be placed (attached?) in the trunk and on each sides of the engine bay?
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    yup prices are crazy right now even in Canada,...

    yup prices are crazy right now even in Canada, there is basically no 03-06 convertible below 50k and low-milleage ones are 55-60k+ (USD$)

    last year I couldve bought locally 2 or 3 for less than...
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    If you don't track the car, or don't absolutely...

    If you don't track the car, or don't absolutely want the gen 5, I see not point not having a convertible. Even on chassis stiffness point of view, I think they are virtually the same.
  25. 49401 Got my Penske double w/Hyperco springs,...

    49401

    Got my Penske double w/Hyperco springs, will get them installed next week along with that:

    https://tkomotorsports.com/product/viper-rear-lower-shock-mount-with-spherical-bearing/

    Can't...
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