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    • Video of BenzBoost member JRCART's Weistec Engineering supercharged CLK63 Black Series at the 1/4 mile drag strip - 10.8@130

      Here is the video everyone has been waiting for. This is the first of what we believe will be many 10 second supercharged M156 V8 (63 AMG) Mercedes vehicles. The car was run in the Summer heat of Southern California at the Fontana drag strip which is notoriously slow. Density altitude went up over 3000 during the day yet the car still managed to hit 10's which is certainly impressive. 275/40/17 Mickey Thompson drag radials were used along with lightweight seats and race gas. Congratulations to Weistec and JRCART.







      This article was originally published in forum thread: JRCART mile video, Weistec Supercharged started by Weistec View original post
      Comments 45 Comments
      1. Sonny's Avatar
        Sonny -
        Nice run. Thanks for sharing.
      1. Terminator-N54's Avatar
        Terminator-N54 -
        Thats just insane!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Terminator-N54 Click here to enlarge
        Thats just insane!
        If that isn't crazy fast enough what people should realize is there is a nice margin for improvement.
      1. whipplem104's Avatar
        whipplem104 -
        It looks like he rolled out on the launch a little too.
      1. LZH's Avatar
        LZH -
        Congrats Jim - that thing is ridiculous. Shifts sounded great too Click here to enlarge Lots left on the table and I'm sure once you have it dialed in and better conditions you will have the new record. Well done bud.
      1. JRCART's Avatar
        JRCART -
        Did anyone notice I long I had to sit and wait while the idiot in the GT-R rolled through the lights? Meanwhile my tires were cooling and my engine temps were rising.
      1. MHP LLC's Avatar
        MHP LLC -
        Congrats to Weistec and Jim for running a 10 anything in that weather.

        Did you manage to get a 60-130 out of the V-box? I bet it would be 7s or under on that pass easy.

        Thanks
      1. Barfly's Avatar
        Barfly -
        Click here to enlarge Originally Posted by Weistec Click here to enlarge

        Good post, great vid, car sounds great and moves and most importantly no BS in this post. Great job Weistec!
      1. Barfly's Avatar
        Barfly -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        Did anyone notice I long I had to sit and wait while the idiot in the GT-R rolled through the lights? Meanwhile my tires were cooling and my engine temps were rising.
        Question, and please don't take this the wrong way because its valid based on whats been posted here, how do you think the car will perform now vs when it was nat asp on back to back to back passes? It seems like the nat asp guys lke mthis dodger propain and more get their best times and mph on pass five or six of seven in a row. Now that your forced induction does more time between passes help or is it like it was nat asp?

        Thx
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        Did anyone notice I long I had to sit and wait while the idiot in the GT-R rolled through the lights? Meanwhile my tires were cooling and my engine temps were rising.
        Yep, I've been frustrated with this same thing at both private and public run times. Best to just let him stage first and let him wait for you.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Barfly Click here to enlarge
        Question, and please don't take this the wrong way because its valid based on whats been posted here, how do you think the car will perform now vs when it was nat asp on back to back to back passes? It seems like the nat asp guys lke mthis dodger propain and more get their best times and mph on pass five or six of seven in a row. Now that your forced induction does more time between passes help or is it like it was nat asp?

        Thx
        I do not see how a positive displacement blower would not generate more heat, it has to. That does not mean their cooling solution does not have the capacity to handle back to back. It is an interesting point though.
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by Barfly Click here to enlarge
        Question, and please don't take this the wrong way because its valid based on whats been posted here, how do you think the car will perform now vs when it was nat asp on back to back to back passes? It seems like the nat asp guys lke mthis dodger propain and more get their best times and mph on pass five or six of seven in a row. Now that your forced induction does more time between passes help or is it like it was nat asp?

        Thx
        that's a valid question that I can not answer because I only made 4 passes on Saturdale because there were literally a couple hundred cars at the event which made hot lapping impossibe. I can tell you that the car has had extensive dyno testing with back to back to back runs with no ill effects aa well as extensive city driving in socal july heat. I won't be able to comment on hot lapping until I get it out at a private rental.
      1. Barfly's Avatar
        Barfly -
        Ok watched the in car vid a few times and now have another question, why was carts body jerking to the side on every upshift? Not backward from the force of the power of the car, but sideways? Also looks and sounds like a bit of a short shift on the one two shift. You'd think with that much power 2 hands would be on the wheel no?
      1. JRCART's Avatar
        JRCART -
        Sorry for my 2nd grade typing skills, trying to post via phone while driving between stoplights LOL
      1. Barfly's Avatar
        Barfly -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        that's a valid question that I can not answer because I only made 4 passes on Saturdale because there were literally a couple hundred cars at the event which made hot lapping impossibe. I can tell you that the car has had extensive dyno testing with back to back to back runs with no ill effects aa well as extensive city driving in socal july heat. I won't be able to comment on hot lapping until I get it out at a private rental.
        Fair enough thank you for the response. How did you do on the road course? Thats a vid I would love to see no matter how much boost.
      1. Barfly's Avatar
        Barfly -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        Sorry for my 2nd grade typing skills, trying to post via phone while driving between stoplights LOL
        We know youre literate, thanks for answering. Click here to enlarge
      1. PetroC63's Avatar
        PetroC63 -
        Very nice run!

        The car sounds awesome.
      1. Dodger63's Avatar
        Dodger63 -
        Great run, looks like the track was shiny with vht didn't seem like traction was lost? Nice shifting if that was s mode as stated looks like with the right setup u guys will have some good runs
      1. Barfly's Avatar
        Barfly -
        One more question cart, vid says stock cams but in the last thread with dynos on here it was posted your car had sls cams, did you switch back to your 63 cams or are they still sls. sls can mean stock too so thx for your info.
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by Barfly Click here to enlarge
        Fair enough thank you for the response. How did you do on the road course? Thats a vid I would love to see no matter how much boost.
        Never made it out to the raod course. We didn't leave the track till after 10:30 and then had an hour drive back to the shop, there was no time to switch back to road race suspension set up.