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    • COBB Tuning AccessPORT Stage 1 335xi vs. 335i JB3 roll on race video

      Here we have a direct comparison between a 335 with the Cobb Tuning Accessport Stage 1 vs. a 335 with a JB3 2.0, Stett CAI, and Stett charge pipe. The JB3 car pulls but it is important to note it is RWD vs. an AWD car so not exactly apples to apples. Also, we assume this was pump fuel. Still, great to see a comparison like this.



      This article was originally published in forum thread: COBB TUNING AccessPORT Stage 1 335xi vs. 335i JB3 roll ons started by Sticky View original post
      Comments 36 Comments
      1. mazdaspeed6's Avatar
        mazdaspeed6 -
        Click here to enlarge Originally Posted by alpinedevil335 Click here to enlarge
        sounds about right....
        Man I'm good Click here to enlarge
      1. acj75's Avatar
        acj75 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        At the same boost they likely will be equal and even though it is not an apples to apples comparison it is still nice to see.
        The xi in the video is a former JB3 owner. He dyno'd his car on the same day with both tunes and had better numbers with the Cobb/DCI/93 combo than with the JB3 on map 5. Btw, both cars in the video are using 93 octane pump gas.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by acj75 Click here to enlarge
        The xi in the video is a former JB3 owner. He dyno'd his car on the same day with both tunes and had better numbers with the Cobb/DCI/93 combo than with the JB3 on map 5. Btw, both cars in the video are using 93 octane pump gas.
        Does he have the dyno comparison? Would be interesting to see.
      1. marvel48's Avatar
        marvel48 -
        Hmmmm?

        Is it just me or does the reflection of the camera car in the 2nd race look like that of a Gray/Silver e92? But the intro to the video shows what looks like a montego blue bmw. Are there 3 different cars in this video?
        Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by marvel48 Click here to enlarge
        Hmmmm?

        Is it just me or does the reflection of the camera car in the 2nd race look like that of a Gray/Silver e92? But the intro to the video shows what looks like a montego blue bmw. Are there 3 different cars in this video?
        Click here to enlarge
        At first I was going to saw conspiracy theory but good eye actually. It does appear to be a grey E92, I have no explanation.
      1. SSDD's Avatar
        SSDD -
        Good catch.

        Shenanigans!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SSDD Click here to enlarge
        Shenanigans!
        <div style="background-color:#000000;width:368px;"><div style="padding:4px;"><embed src="http://media.mtvnservices.com/mgid:cms:item:southparkstudios.com:103481" width="360" height="293" type="application/x-shockwave-flash" allowFullScreen="true" allowScriptAccess="always" base="." flashVars=""></embed><p style="text-align:left;background-color:#FFFFFF;padding:4px;margin-top:4px;margin-bottom:0px;font-family:Arial, Helvetica, sans-serif;font-size:12px;"><b><a href="http://www.southparkstudios.com/full-episodes/s02e13-cow-days">Cow Days</a></b><br/>Tags: <a style="display: block; position: relative; top: -1.33em; float: right; font-weight: bold; color: #ffcc00; text-decoration: none" href="http://www.southparkstudios.com/">SOUTH<br/>PARK</a><a href="http://www.southparkstudios.com/guide/episodes/s02e13-cow-days">more...</a></p></div></div>
      1. 5soko's Avatar
        5soko -
        The JB3 car, from what i seen from the owners sig pic is the grey car.
      1. acj75's Avatar
        acj75 -
        Click here to enlarge Originally Posted by marvel48 Click here to enlarge
        Hmmmm?

        Is it just me or does the reflection of the camera car in the 2nd race look like that of a Gray/Silver e92? But the intro to the video shows what looks like a montego blue bmw. Are there 3 different cars in this video?
        Click here to enlarge
        You're right. The blue one is mine. Just threw it in there for a background Click here to enlarge
      1. Doug007's Avatar
        Doug007 -
        Click here to enlarge Originally Posted by scott135i Click here to enlarge
        Need to see two cars of the same type, transmission type and mods for equal comparo....
        +1 AWD has much higher drivetrain losses compared to RWD. Transmission is not as much of a factor (if the MT driver knows what he's doing) but AWD is a disadvantage on highway pulls.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Doug007 Click here to enlarge
        +1 AWD has much higher drivetrain losses compared to RWD. Transmission is not as much of a factor (if the MT driver knows what he's doing) but AWD is a disadvantage on highway pulls.
        Yep, maybe we can see xi for xi or rwd vs. rwd at some point.
      1. LostMarine's Avatar
        LostMarine -
        ahh, here we go.. i was away when this was posted.. good comparison though
      1. acj75's Avatar
        acj75 -
        It's an okay comparison...I mean what you see is what you get. Honestly, if you would have swapped the tunes in both cars, the result would have been very similar if not an even bigger winning margin for the 335i. Both guys are my friends, and I can tell you the 335xi is just not as fast. Chalk it up to weight, parasitic loss, whatever...it's definitely not apples to apples. My car has a very mild, tune only Dinan stage 1. The xi in this video has put down better numbers than me on the same dyno - first with his JB3/DCI and now with the COBB/DCI, but he can't beat me out on the road. It is a closer race with the COBB though.

        The 335i JB3 driver in the video upgraded to the JB4 and then recently to the COBB AP. I did manage to race him a couple times while he had the JB4. The result is what you'd expect...I can generally hang through 1st and 2nd, but then my 11.2 psi starts getting left behind in 3rd and 4th. I can't remember if I posted this video on this site, but here's me running the JB3 car from the OP video (after he upgraded to the JB4).

      1. LostMarine's Avatar
        LostMarine -
        are you XI?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by acj75 Click here to enlarge
        Chalk it up to weight, parasitic loss, whatever...it's definitely not apples to apples.
        Absolutely correct, made sure to point this out. You know how people love to see race vids though...
      1. acj75's Avatar
        acj75 -
        No, mine is the Montego 335i with the Dinan stage 1. Sorry if my post was confusing. The black car in the OP video is the xi, the space gray (camera car) in the OP video was the JB3. The video I just posted (with the GoPro angle) was me vs. the space gray after he had upgraded to JB4. The space gray car and the xi from the original video now both have the COBB AP. I'm still rockin' the Dinan Click here to enlarge