• Renntech CL65 AMG overall Mercedes 1/4 mile record actually set with nitrous despite claims otherwise?

      You all may recall that RennTech set the overall MB 1/4 mile record of 10.27@137 a couple months back. We were given a mod list by the owner SGC and Renntech of drag radials, higher stall torque converter, limited slip diff, custom exhaust, modified intercooler, carbon ceramic brakes, and race gas only tune. We couldn't understand how this car on stock turbos was trapping so much higher than other M275 V12 twin turbo cars. It would seem the answer is nitrous as a video has popped up showing the lines in the engine bay, check it out yourself.



      This article was originally published in forum thread: Renntech CL65 AMG overall Mercedes 1/4 mile record actually set with nitrous despite claims otherwise? started by Sticky View original post
      Comments 72 Comments
      1. Benz-O-Rama's Avatar
        Benz-O-Rama -
        He addressed this on MBWorld:

        http://www.mbworld.org/forums/w211-a...ml#post4699619

        The question is, do you believe him?

        A moderator on this very forum is vouching for his integrity.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Benz-O-Rama Click here to enlarge
        He addressed this on MBWorld:

        http://www.mbworld.org/forums/w211-a...ml#post4699619

        The question is, do you believe him?

        A moderator on this very forum is vouching for his integrity.
        No, I do not believe him, sorry.

        Running those traps in positive DA never made any sense and this was mentioned. He out trapped cars with nitrous, how? Well, by running nitrous as well. It can't be done without nitrous based on EVERY slip we have seen thus far and based on that mod list that was presented.

        Sure, he has invited people which is a clever cover story. However, someone who was at the track did get a video of his car with nitrous lines in the engine bay so... the evidence is right there.

        Additionally, the only way to prove it now is to repeat the feat with someone there to actually check as that video has reduced any credibility he might have had.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Benz-O-Rama Click here to enlarge
        He addressed this on MBWorld:

        http://www.mbworld.org/forums/w211-a...ml#post4699619

        The question is, do you believe him?

        A moderator on this very forum is vouching for his integrity.
        Maybe someone else with nitrous experience can chime in, what do these lines look like to you?

        Attachment 7791
      1. V12Godspeed's Avatar
        V12Godspeed -
        Why would the lines be connected to the Fuel lines? If my memory serves me correct, meth doesnt need fuel to work. Am I missing something? Not hating on renntech or SGC but just shocked at the video showing the braided lines. Hmmm.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by V12Godspeed Click here to enlarge
        Why would the lines be connected to the Fuel lines? If my memory serves me correct, meth doesnt need fuel to work. Am I missing something? Not hating on renntech or SGC but just shocked at the video showing the braided lines. Hmmm.
        I think you are correct and I'm not super familiar with the M275 V12 but that sure looks like a good spot to drill for nitrous?
      1. Benz-O-Rama's Avatar
        Benz-O-Rama -
        I find his traps to be questionable too.

        I am going to give him the benefit of the doubt though, for now. A friend of mine, blackbenzz, was constantly accused of running nitrous when he broke records. Which he wasn't. He too, had the nitrous lines run, but never had a bottle in the car.

        Amazing traps though. No doubt.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Benz-O-Rama Click here to enlarge
        I am going to give him the benefit of the doubt though, for now. A friend of mine, blackbenzz, was constantly accused to running nitrous when he broke records. Which he wasn't. He too, also had the nitrous lines run, but never had a bottle in the car.
        BlackBenz I believe because what he was doing was based on his 60 foot and launch, abusing the torque converter essentially. His traps were not out of line, these are.
      1. Benz-O-Rama's Avatar
        Benz-O-Rama -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        BlackBenz I believe because what he was doing was based on his 60 foot and launch, abusing the torque converter essentially. His traps were not out of line, these are.
        Agree with everything here.

        I don't have access to his time slip right now, but what was is back 1/8th mph gain?

        That will tell a lot.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Benz-O-Rama Click here to enlarge
        Agree with everything here.

        I don't have access to his time slip right now, but what was is back 1/8th mph gain?

        That will tell a lot.
        It's all on our 1/4 mile list but I don't think we got a slip, just a video: http://www.bimmerboost.com/showthrea...ding-Mile-list

        The slip is in the Video:



        1/8 108.99

        1/4 137.46
      1. Benz-O-Rama's Avatar
        Benz-O-Rama -
        29mph is a big number for positive D/A, not impossible though.

        For comparison, my 11.1x times have a 25 mph gain on the back 1/2, in negative 1500ft D/A

        I have a 600 M275 though, not a 65. Those breathe better up top.

        What was Andy's 11.0x back 1/2 gains on his SL65?

        Forgive me for not checking, browsing on my phone.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Benz-O-Rama Click here to enlarge
        29mph is a big number for positive D/A

        For comparison, my 11.1x times have a 25 mph gain on the back 1/2, in negative 1500ft D/A

        I have a 600 M275 though, not a 65.

        What was Andy's 11.0x back 1/2 gains on his SL65?

        Forgive me for not checking, browsing on my phone.
        Still, the affect of DA on a twin turbo V12 motor of the exact same design doesn't change just because you are missing a half liter of displacement.
      1. Benz-O-Rama's Avatar
        Benz-O-Rama -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Still, the affect of DA on a twin turbo V12 motor of the exact same design doesn't change just because you are missing a half liter of displacement.
        Stock 65 snails have slightly larger impeller wheels too.

        But yeah....
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Benz-O-Rama Click here to enlarge
        Stock 65 snails have slightly larger impeller wheels too.
        I understand, but that doesn't turn positive DA into negative DA.

        It's interesting, that is for sure. The trap speeds never added up for me.
      1. Benz-O-Rama's Avatar
        Benz-O-Rama -
        Interesting indeed...

        The truth always comes out. Whatever that may be.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Benz-O-Rama Click here to enlarge
        Interesting indeed...

        The truth always comes out. Whatever that may be.
        That it does, that it does.
      1. blkclk550's Avatar
        blkclk550 -
        WOMP WOMP
      1. MSIZZLE's Avatar
        MSIZZLE -
        what do they normally trap with his setup?
      1. V12Godspeed's Avatar
        V12Godspeed -
        Click here to enlarge Originally Posted by MSIZZLE Click here to enlarge
        what do they normally trap with his setup?
        http://www.dragtimes.com/Mercedes-Be...ag-Racing.html
      1. Sticky's Avatar
        Sticky -
        That's a 7-9 mph gap, you don't create that out of thin air.
      1. MSIZZLE's Avatar
        MSIZZLE -
        can one of the drag racing experts tell us how much hp it takes to p/u 9 mph??