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    • MHP v3 CDT SL65 Claims Tune Only 65 AMG Record - 11.2@128

      Well it ended up being 74 degrees but we still had a great day at MIR. DA was +1249' at the time of this pass. 3/4 tank of gas, half 93, half 100 (don't ask lol). Full interior, stock front wheels, borrowed C63 wheels with 18" Nitto DRs and BMC drop ins with our v3 CDT (ECU & TCU Tuning).

      Obviously we left a lot in the 60' and the temps didn't help. I think the car will go 10s@130+ as it sits next rental. First time to the track learning the car and there's a lot to learn I will say that 63s can run all day long 40+ passes and not miss a beat, 65s in this weather without cooling upgrades are meat after 1 pass.

      Videos of everyone coming by end of weekend!


      This article was originally published in forum thread: MHP v3 CDT SL65 Claims Tune Only 65 AMG Record started by MHP LLC View original post
      Comments 17 Comments
      1. Sticky's Avatar
        Sticky -
        First of all, congrats Andy. I think that car may be able to hit 10's... which would be, well, you know how that would be.

        Whose car is this?

        I am going to have a lot of entries to add to the database this weekend looks like Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Just noticed, the DA was 1200+? Seriously? Wow, I'm surprised. This thing will definitely run 10's.

        Record added to the list, also promoted to the front page.
      1. MHP LLC's Avatar
        MHP LLC -
        Thanks Matt and Sticky!

        Yes the 11.26@128.3 run was at 3:00 exactly, temp was 73.9 degrees, according to dragtimes 1249' DA+. No BS. Dodgers best run came with 1100'+ DA but he was consistent 10.8s@131-132+ all day.

        It's our new project car, local customer owns it but we're going to turn it into a monster for him shortly.

        First time to the track with the car, lots to learn especially about launch, burnout, etc. So many things factored against us, weather, too much gas, wrong gas (93), no weight reduction, small DRs on borrowed C63 wheels (thanks mthis!), and it still ran 11.2@128+ on a 1.79 60' LOL!

        We were sweating balls, it was HOT for Feb.
      1. Sticky's Avatar
        Sticky -
        Who SL65 was this?

        Mthis posted DA's that were pretty low?
      1. MHP LLC's Avatar
        MHP LLC -
        We did not see less than 500' DA and by 3:00 it was 1250'+ DA. Check dragtimes, it gives you hourly info based on track, date, time.

        SL65 is owned by a local customer but is our new AMG project car.
      1. V12Godspeed's Avatar
        V12Godspeed -
        Congratulations, the car is definitely haulin'!
      1. MHP LLC's Avatar
        MHP LLC -
        Click here to enlarge Originally Posted by V12Godspeed Click here to enlarge
        Congratulations, the car is definitely haulin'!

        Thank you, and it's nice to see you over here as well!
      1. MHP LLC's Avatar
        MHP LLC -
        According to Dragtimes we also have the highest trap of any SL65 posted regardless of level of mods:

        http://www.dragtimes.com/Mercedes-Be...ag-Racing.html

        Everything has been submitted so we'll be in 3rd Overall but again with the highest trap, now to put it to the ground.

        edit: Entry #2 appears to be a VBox 1/4 mile submission, which isn't allowed and should be removed, so I guess that puts us #2.
      1. Sticky's Avatar
        Sticky -
        Yep, highest trap, impressive.

        You may be able to top the overall ET with just the tune only....
      1. MHP LLC's Avatar
        MHP LLC -
        Despite non stop rain today we hit the dyno with the SL65 today to see the improvements made via MHP’s v3 CDT (ECU & TCU Tuning) vs stock with BMC filters, and here are the results. I used the same dyno as when I was stock (with filters then too), same brand of 93 octane (Mobil), 4th gear, and SAE correction factor with smoothing set at 5.



        Best pull of 567rwhp/791rwtq SAE


        Backed up with 566rwhp/778rwtq SAE


        Then 563rwhp/790rwtq SAE


        Assuming 20% drivetrain loss that equates to 708HP and 989lb/ft at the crank with just tuning and filters on pump gas. We are pleased and will try a dedicated 100 octane tune next.



        Videos:








        Picture showing a nice safe Air Fuel Ratio:


        Click here to enlarge

        Graphs:


        Click here to enlarge

        Click here to enlarge

        MHP v3 CDT vs Stock:

        Click here to enlarge
      1. Marcin's Avatar
        Marcin -
        Looking good Andy. What dyno is that on? Also I noticed you are spinning the motor a little higher. Did you rev it to 6200 at the dragstrip too? And also in regards to the amount of fuel in the tank you mentioned. Believe it or not we've had better results with 1/2 to 3/4 of the tank full. I think the extra weight in the back helps getting the tire to stick.
      1. DD GT3 RD's Avatar
        DD GT3 RD -
        Jesus chist that thing has near 800lb feet of torque at the wheels, if it has 20% dt loss it would be 1000lbs crank! MONSTER!!! Thats the kind of torque that can change the earths rotational axis!
      1. Barfly's Avatar
        Barfly -
        Nice job!!!
      1. MHP LLC's Avatar
        MHP LLC -
        Click here to enlarge Originally Posted by Marcin Click here to enlarge
        Looking good Andy. What dyno is that on? Also I noticed you are spinning the motor a little higher. Did you rev it to 6200 at the dragstrip too? And also in regards to the amount of fuel in the tank you mentioned. Believe it or not we've had better results with 1/2 to 3/4 of the tank full. I think the extra weight in the back helps getting the tire to stick.
        Hey Marcin, Sorry I didn't see your post sooner. Thanks for the kind words and tips, they are definitely appreciated and noted. What you say makes sense, but honestly traction was not an issue at MIR, I lost my shoe again walking across the line--that's 2 rentals in a row lol. No I let the car shift itself at the strip, I should've held 3rd gear to cross the traps vs letting it shift 200' before the line, I think that cost me 10s alone even in that air. I still think the optimal shift point is 5600rpm or so, at least with everything else stock corking it up.

        It's a DynoJet 248 model, inertia based dyno. For frame of reference my header/catback/tune C63 made 373/373rw SAE stock then 480rwhp/447rwtq with those mods with the same lack of airflow on the same dyno (1:1, 5th gear SAE). On the same dyno the last C6 Z06 to grace it's rollers put down (bonestock) 438rwhp SAE on 93 octane, 488rwhp after a tune and CAI.

        Any other tips you care to share about launching would be greatly appreciated as I know the car has better than a 1.79' in it. My thinking looking back was that brake torquing to 2000rpm overshot the converter and didn't load the turbos up enough. Even burning out is a PITA in these cars.


        Thanks
      1. MHP LLC's Avatar
        MHP LLC -
        Click here to enlarge Originally Posted by DD GT3 RD Click here to enlarge
        Jesus chist that thing has near 800lb feet of torque at the wheels, if it has 20% dt loss it would be 1000lbs crank! MONSTER!!! Thats the kind of torque that can change the earths rotational axis!
        Going back on straight race gas and going to ice the hell out of the ICs to do that, hopefully.

        If this thing could hook on the street it would induce whiplash in 1-2nd gears as is, spins through 3rd (in this weather) most of the time as well.

        M275= Torque City
      1. Sticky's Avatar
        Sticky -
        By the way, I'm still surprised dragtimes hasn't removed the bogus time. Going to bump that thread...
      1. Benz-O-Rama's Avatar
        Benz-O-Rama -
        Click here to enlarge Originally Posted by MHP LLC Click here to enlarge
        Going back on straight race gas and going to ice the hell out of the ICs to do that, hopefully.

        If this thing could hook on the street it would induce whiplash in 1-2nd gears as is, spins through 3rd (in this weather) most of the time as well.

        M275= Torque City
        One of my absolute favorite things to do in mine, is to cruise up to about 55-60 mph, turn off traction control, and hammer the GO pedal. The look on people's faces when they see me doing rolling burnouts at that speed is priceless.

        Can't really do it past 45mph in the heat of the summer, but these cars absolutely love the cold weather. When the temps are on the 20's, I swear I pick up 50-60 whp.