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  1. #1
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    2 out of 2 members liked this post. Reputation: Yes | No

    **RMS Dual Core Aftercooler Manifold Conversion**

    Just though I'd share a little conversion we're doing right now on a car we have at our shop. We have done this conversion a few times in the past but I never documented it until now.

    As many of you supercharged S50/S52 owners know, the only real option for sc charge air cooling other than a custom build is our RMS aftercooler. While it is a great unit and a very popular item, there comes a point where it just doesn't cool enough. One of our customers asked if there was any way to adapt our S54 intake manifold to their supercharged S52 engine. The RMS S54 aftercooler manifold has two of the same cores used in our S52 aftercooler.

    I began by drafting a few options for an adapter that would convert the oval ports on the S52 engine to the round ports on our manifold. During the design process I came up with a few different ideas. Here is one of the initial designs.

    Click here to enlarge

    I took many factors into consideration when deciding on the final design such as cost, materials, difficulty of machining, etc. Some of the designs were less costly while others provided the best airflow. When doing a conversion like this I had to consider every angle. I ultimately decided on the following design. This manifold adapter has the same size oval ports as the stock S52 intake ports all the way to the transition from oval to round. The oval to round transition is surface machined on our CNC mill giving us the most precision possible. Here is the final product. Enjoy!

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    Last edited by THATDONFC; 04-18-2013 at 02:31 PM.

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    This is soo awesome guys.
    Click here to enlargeClick here to enlarge

  3. #3
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    I added some images of the manifold installed on the adapter.

    This conversion replaces the factory throttle body with either a 4" or 3.5" throttle body that is mounted before the supercharger inlet. This modification makes for a super snappy throttle. It almost feels instant when you step on the pedal.

    I have a dynograph of a car we did this modifications on but I'll post that in another thread. We are upgrading his supercharger and when we get it all put back together I'll post up all the details.

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    Click here to enlarge Originally Posted by THATDONFC Click here to enlarge
    I added some images of the manifold installed on the adapter.

    This conversion replaces the factory throttle body with either a 4" or 3.5" throttle body that is mounted before the supercharger inlet. This modification makes for a super snappy throttle. It almost feels instant when you step on the pedal.

    I have a dynograph of a car we did this modifications on but I'll post that in another thread. We are upgrading his supercharger and when we get it all put back together I'll post up all the details.
    You do know that this can be used for turbo car's as well.

    Click here to enlarge
    Click here to enlargeClick here to enlarge

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    Click here to enlarge Originally Posted by GG///M3 Click here to enlarge
    You do know that this can be used for turbo car's as well.

    Click here to enlarge
    Absolutely. This would work great on a turbo car!

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    How much are these things going to cost?
    Click here to enlargeClick here to enlarge

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    That's freaking awesome Chris! I love to see this kind of stuff from you.

    Now how much $?

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    This is a really gorgeous unit, damn the temptation to motor swap vs. SC changes every day. Chalk one up to RMS, would love to see this under my hood.
    2015 F82 M4 - DCT - YMB
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    Yes, what other's said. Approximate cost?
    2015 F82 M4 - DCT - YMB
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    Click here to enlarge Originally Posted by GG///M3 Click here to enlarge
    How much are these things going to cost?
    It's not really a product that we offer for sale. We have only sent 1 of these kits out, all of the rest have been done in house.

    Price for the air to liquid cooled manifold, flange adapter, and fuel rail: $1900.00

    This doesn't include a heat exchanger, water pump, wiring harness, or water lines.

    To put this on a turbo car you would need a bracket that would support the manifold to the engine. You would also need some way to mount the throttle body in line. Maybe an adapter plate with the bolt pattern on one side and a round 3" on the other side.

    For a SC car, you would nee a 3.5" or 4" tbody to be mounted before the sc inlet, a different style throttle cable and a few other small items.

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    That's freaking awesome Chris! I love to see this kind of stuff from you.

    Now how much $?
    Thanks for the compliments.

    Click here to enlarge Originally Posted by Irishace Click here to enlarge
    Yes, what other's said. Approximate cost?
    See above. Click here to enlarge

  11. #11
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    I'll post some more pictures of the final project once we finish. I'm handling the 6 speed swap for this car right now.

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    Osh,
    do you think air to water cooler has advantages over air to air?
    E36 M3 Euro TT 60-130 mph 4.49 s
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    Click here to enlarge Originally Posted by Twinturbom3 Click here to enlarge
    Osh,
    do you think air to water cooler has advantages over air to air?
    You aren't speaking to Osh...

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    Where is our "finished product" image update Chris? I'm finally in a position to add boost to my E36 next summer and this so far is the most attractive option!

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    Click here to enlarge Originally Posted by .:AT:. Click here to enlarge
    Where is our "finished product" image update Chris? I'm finally in a position to add boost to my E36 next summer and this so far is the most attractive option!
    @THATDONFC

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    I'm sure RMS is very busy with expanding their product line and the re-launch of their new website, which looks great, but I was hoping for at least an update to this thread on what appears to be an industry 'first'.

    RMS, is there really no word on how this build was completed?

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    Click here to enlarge Originally Posted by .:AT:. Click here to enlarge
    Where is our "finished product" image update Chris? I'm finally in a position to add boost to my E36 next summer and this so far is the most attractive option!
    This is how it looks on a M3 E36.i bought it years ago from mike Radowski but Diogo Azevedo was the former owner of the manifold,i modified it a bit

    http://www.bimmerboost.com/showthrea...944#post260944

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    Click here to enlarge Originally Posted by .:AT:. Click here to enlarge
    I'm sure RMS is very busy with expanding their product line and the re-launch of their new website, which looks great, but I was hoping for at least an update to this thread on what appears to be an industry 'first'.

    RMS, is there really no word on how this build was completed?
    Wow, I'm so sorry I missed this. I'm at home now but I'll try to dig up the images tomorrow.

    And yes, we have all been very busy.

    Just finished this custom stainless steel meth tank for an aquamist install on a supercharged Z3 M Coupe.

    Click here to enlarge

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    These are the best images I could find. I'm shooting the car again some time next week for our new website and I'll be sure to not forget about this thread. Click here to enlarge

    Click here to enlarge

    As you can in this image, the throttle body attaches directly to the inlet of the blower. Before the throttle body we have a MAF welded into a 4" tube.

    Click here to enlarge

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    Thank you for the update and photos Chris! Question time. If you'll indulge me, I have some questions.

    With a goal of 400whp/300wtq peak values on a very healthy 7100rpm S52, what are the answers to the following:

    1) Can a V3 blower from Vortec be utilized? If yes, which impeller is preferred?
    2) Can a 3.5" BOSCH 803 MAF, unmodified, be utilized? (already have 803 MAF from N/A tuning installed currently)
    3) Can the factory throttle body be utilized? (I want as many OEM components as possible)

    If no to any of the above, may I please know why?

    I understand you are very busy and may take time to reply. Thank you for your attention and knowledge.
    Last edited by .:AT:.; 11-11-2013 at 05:46 PM.

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    As far as questions 1 and 3, yes.

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    1 out of 1 members liked this post. Reputation: Yes | No
    Sticky beat me to my edit for clarification. Thank you sir, you and this forum, are most helpful.

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    Click here to enlarge Originally Posted by .:AT:. Click here to enlarge
    Sticky beat me to my edit for clarification. Thank you sir, you and this forum, are most helpful.
    We have our moments.

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    1 out of 1 members liked this post. Reputation: Yes | No
    As I re-ordered the questions in my edit, is your answer still accurate?

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    Click here to enlarge Originally Posted by .:AT:. Click here to enlarge
    As I re-ordered the questions in my edit, is your answer still accurate?
    Yes.

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