Rx/VMax Throttle Body Prototype
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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Rx/VMax Throttle Body Prototype in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Alright guys so today I went over to Rx in Palmetto FL and met up with Pete (Vmax Motorsports) and ...
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    Tlorenzen is offline Cadillac Owners Connoisseur
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    Rx/VMax Throttle Body Prototype

    Alright guys so today I went over to Rx in Palmetto FL and met up with Pete (Vmax Motorsports) and Tracy. We setup the dyno and did a few runs. The dyno runs were completed on 93 octane. I'm extremely happy with my results and the output of the TB. The throttle response down low is absloutely incredible compared to stock. It will be a couple months before the TB is finished and ready to go as it has to go back to get molds made and then code created for the cnc. Also, Tracy hasn't forgot about the CAI, he's just been swamped with projects and nothing having enough capital to support more. (CAI is his own project. TB is Vmax with Tracy's help) Anyways, what you've all been waiting for.....

    Here's our run before installing Vmax's TB.


    After.



    Anyways, I think the numbers and power curve explain its self. Also, Other mods on the car are Vmax Iceolator, Rx CAI, and CTS-V Exhaust with resonator delete. This is 50 crank hp from Rx...Do you still question if the iceolator is worth it as well?..

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    DavidBoren's Avatar
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    Re: Rx/VMax Throttle Body Prototype

    Am I reading this right? Tracy is making us LY7 folk a throttle body? Thank Zeus, its about time. If there is a short list for people that want this, put me on it.

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    Tlorenzen is offline Cadillac Owners Connoisseur
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    Re: Rx/VMax Throttle Body Prototype

    Yes. I drove my car down the road with the prototype in it today. Was amazing. Throttle response down low was extremely increased. Also idel'd better. I will have more pictures up soon. Send Tracy a PM (SC2150) and let him know. It will still be a while before its out, but the production model should be even better as it will be machined, not hand crafted like the prototype.

    When the production TB is ready, Vmax will also consider a TB spacer. This will only be available if we find gains from it on the Dyno and we will post up the numbers if so.
    ----------

    [/COLOR]The new TB with old one sitting on top



    Inside pic of new hand made TB

    Iceman_jd, Iceman_jd and daddysav like this.

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    Re: Rx/VMax Throttle Body Prototype

    It would be really cool to add the same thickness/material as the intake spacer between the throttle body and the intake. I doubt it would have any noticeable gains, but then again, do TB spacers ever show measurable results? I just think it would be cool as a complete kit... throttle body, TB spacer, VMAX. But, if there is noticeable gains to be had with TB spacers, why dont people just make the entire throttle body longer?

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    Re: Rx/VMax Throttle Body Prototype

    Very happy to see this. I'm actually getting ready to order the intake spacer myself. Definately getting this when it's done too.

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    Re: Rx/VMax Throttle Body Prototype

    Quote Originally Posted by DavidBoren View Post
    It would be really cool to add the same thickness/material as the intake spacer between the throttle body and the intake. I doubt it would have any noticeable gains, but then again, do TB spacers ever show measurable results? I just think it would be cool as a complete kit... throttle body, TB spacer, VMAX. But, if there is noticeable gains to be had with TB spacers, why dont people just make the entire throttle body longer?
    Clearance issues. If you get the TB too close to the radiator you have to have a super sharp turn in your intake piping...which slows air down..which deems the spacer useless. Our general thought is the gain from a spacer won't be very noticable...but it could still be a small increase..could...it could also hurt performance if it requires a sharper turn in piping..in which case we would throw the idea out. Will just have to wait and see what Vmax says.

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    Re: Rx/VMax Throttle Body Prototype

    Are there any dyno results from just running with & without the Iceolator alone, on a stock engine using 87 octane ?

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    Tlorenzen is offline Cadillac Owners Connoisseur
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    No. Tracy is currently looking for someone to be able to do this as my car can't really be converted back to stock. it also takes about 100 miles of driving for the ecm to fully adapt.


    Quote Originally Posted by Argent1 View Post
    Are there any dyno results from just running with & without the Iceolator alone, on a stock engine using 87 octane ?

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    Re: Rx/VMax Throttle Body Prototype

    I'm bone stock mechanically, I was waiting for the CAI to be in production so I could do dyno - pulls at stock, stock + Iceolater, then Iceolator and CAI. At some point my having a stock 3.6 exhaust will become a very real holdup in better performance, but the offer's out there.
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    Re: Rx/VMax Throttle Body Prototype

    If distance wasn't such a big factor, I'd drop by myself. Also curious as to why they settled on the thickness they did. Why not thicker ?

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    Re: Rx/VMax Throttle Body Prototype

    I am actually not even that worried about the horsepower gains as I am the added responsiveness. I would buy it without any added power as long as it reacts quicker than the sluggish OEM unit. I imagine a lot of that has to do with the computer taking its sweet time telling the TB to open, and no amount of polishing will decrease that, but you said you noticed the increased responsiveness, and that is what I am looking for.
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    Tlorenzen is offline Cadillac Owners Connoisseur
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    I also asked Pete with vmax when I was there. His words...The thicker iceolator cost nearly twice as much to make, caused clearence issues, and was about 5hp less and 3tq more if I remember correctly. Thus he decided to only make the 3/8 one. It really is crazy how you can lay your hand on the intake manifold while the car is hot as hell and it'll be just Luke warm.

    The material is one that's was used in submarines. I forgot the technical term.

    Quote Originally Posted by Argent1 View Post
    If distance wasn't such a big factor, I'd drop by myself. Also curious as to why they settled on the thickness they did. Why not thicker ?


    ----------

    That was also their main goal..the nice hp/tq gains was just frosting on the cake.

    Quote Originally Posted by DavidBoren View Post
    I am actually not even that worried about the horsepower gains as I am the added responsiveness. I would buy it without any added power as long as it reacts quicker than the sluggish OEM unit. I imagine a lot of that has to do with the computer taking its sweet time telling the TB to open, and no amount of polishing will decrease that, but you said you noticed the increased responsiveness, and that is what I am looking for.

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    Re: Rx/VMax Throttle Body Prototype

    Quote Originally Posted by Tlorenzen View Post
    I also asked Pete with vmax when I was there. His words...The thicker iceolator cost nearly twice as much to make, caused clearence issues, and was about 5hp less and 3tq more if I remember correctly. Thus he decided to only make the 3/8 one. It really is crazy how you can lay your hand on the intake manifold while the car is hot as hell and it'll be just Luke warm.

    The material is one that's was used in submarines. I forgot the technical term.



    ----------

    That was also their main goal..the nice hp/tq gains was just frosting on the cake.
    Thanks for the info. I thought the material was 'phenolic'.

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    Re: Rx/VMax Throttle Body Prototype

    Quote Originally Posted by Argent1 View Post
    Thanks for the info. I thought the material was 'phenolic'.
    That sounds right.

    A couple more pics..



    2009 3.6l cts




    Rx's new Top mount supercharger.







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    Re: Rx/VMax Throttle Body Prototype

    Love the top-mount s/c. It is sexy! If I ever end up having to replace my LY7, I think I will swap in a LFX with one of these. Wouldnt it be nice if Tracy accidentally was to build a LY7 version...

    Either way, Tracy, let us know when these will be ready so we can organize a group buy...
    Who has two thumbs and is number one on the RX Throttle Body Group Buy list:
    This guy!

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