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FD3S UIM adapter

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Old 04-12-16, 11:08 PM
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AZ FD3S UIM adapter

Hey i know that for while that some people were looking for the UIM adapter for these cars. I happened to have one from my old car that i was thinking of having a shop duplicate. Does anyone still make these things. Any information you guys have would help.

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Old 04-13-16, 12:00 AM
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ah..Nah..
you should toss that out in the trash..
By the way when is Garbage day around your house?..(mwuhahhahahhaaa!!!!!!)

Seriously these things should be made in bulk because lately the threads about them are like flies on poop!
Make it..they will hummmm!
Old 04-14-16, 12:40 AM
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I will start an 8nterest thread to see if people want in on them
Old 04-14-16, 04:48 AM
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They will. Just start making them now lol
Old 04-14-16, 09:26 AM
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https://www.rx7club.com/2nd-generati...apter-1088590/
Old 04-14-16, 10:12 AM
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That's my thread, SPENG has dropped off the face of the earth. Darin put on a good face for a while and some of us got our stuff (with some prodding), but at the end of the day some things never change.

There's another guy on this forum who claims to be making one, but gets bent out of shape when people remind him that several brands sold this product for half of what he's proposing to charge, so I doubt he'll make it off the ground with that attitude. There's certainly a small market for this.
Old 04-14-16, 11:25 AM
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hmm..solution..
Hole saw..Jig Saw...drill..and Daniel with a 12 pack..
Old 04-14-16, 03:41 PM
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I can definitely have them duplicated with but I would STRONGLY advise to not use an orange setup. The chances of an oring falling down into the intake runners is just too high. I'm thinking about starting up an interest thread. I'm willing to pay for a batch on my own I just want to make sure people want them. I don't think they will be as cheap in a smaller batch.
Old 04-14-16, 03:42 PM
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I thought i read a thread that said the HP gain is minimal, like 2 hp or something...
Old 04-14-16, 03:47 PM
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Originally Posted by antnicuk
here it is,

there are 3 runs

the top run which is pink is a year old, it was my old engine with low comp rotors and a GT35/40, 0.96 turbine housing small street port,

The middle run which is red is my new engine with FD rotorsand the FC UIM with a large street port (huge) same turbo but with a 1.15 exhaust housing both T4 flange.

The black run is with the FD UIM on the new engine.

The old run may have been a slightly higher boost but the two new engine runs are a touch under 1 bar, about 13.5 - 14 psi.

I now need to try and figure out why both engines hit 350 bhp and stop, although the new engine makes it a lot earlier. The graphs are very similar considering the porting is much different and the turbine housing is different and the rotors are different. (its actually a completely different block)

I have plenty fueling, only hitting 74% duty cycle.

The only thing that is the same is the intercooler whic the tuner thinks maybe restrictive.

What do you think?



BHP and torque, both rear wheel figures.

https://www.rx7club.com/2nd-generati...fc-uim-655708/
Old 04-14-16, 05:18 PM
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Yeah but fd UIM looks way better... that's one reason I'm sure some people do it.
Old 04-14-16, 07:17 PM
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Might I remind, current and future lurkers, that peak numbers are only half the story. It's clear that the FD UIM makes more power in the mid range when comparing the black lines to the red from the OP's dyno charts.

Old 04-14-16, 10:52 PM
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Originally Posted by AaronJ
I can definitely have them duplicated with but I would STRONGLY advise to not use an orange setup. The chances of an oring falling down into the intake runners is just too high. I'm thinking about starting up an interest thread. I'm willing to pay for a batch on my own I just want to make sure people want them. I don't think they will be as cheap in a smaller batch.
I actually like the o ring idea . It cancels out the differences in bolt patterns and gasket sealing differences. I'm sure some people are running factory gaskets thinner than they should. It would suck if an o ring went into the engine. I guess you would have to be extra careful on instalation
Old 04-14-16, 10:53 PM
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So before i order a batch I want to see who all is actually interested in maybe getting one? I cant discuss pricing or anything like that but if you thin you want and could afford one based off previous market values then let me know.
1.
2.
3.
4.
5.
Old 04-14-16, 11:00 PM
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Originally Posted by GrossPolluter
I actually like the o ring idea . It cancels out the differences in bolt patterns and gasket sealing differences. I'm sure some people are running factory gaskets thinner than they should. It would suck if an o ring went into the engine. I guess you would have to be extra careful on instalation
I thought about that a lot actually and i do agree for convenience and cost purposes it is a great idea but there is no way to retain the bottom orings when placing the adapter onto the LIM. However this it would be a great idea for attaching the UIM to the adapter because the o-rings will be able to rest within the groves of the adapter.

The second thing that concerns me is that high quality o-rings are not "readily" available to most people depending on location however i have not done enough research to know if orings at places like oreillys and auto zone would be up to the task.
Old 04-14-16, 11:03 PM
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The old RisingRPM setup used eccentric bolts which basically moved to allow you to slap the pieces together since the bolt patterns were slightly different.
This setup allowed you to use the FD on top and the FC Gasket on the bottom.
Since the holes on the bottom of the spacer were slightly larger to accommodate the eccentric bolt it allowed the correct bolt spacing of the lower manifold and then it transitioned to the FD up top.

There is another 2 tier adapter that allows the parts to be slapped together as the flanges at the top and bottom are made to fit each different manifold.

I honestly liked the RisingRPM spacer..(before it went extinct).I should have kept mine.

I wouldn't like the O-Ring idea..it just making a simple part more complicated to manufacture.
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Old 04-14-16, 11:03 PM
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is this like the rising rpm one? where is that circle with offset studs?
for s5 lim to s6 uim, right? thickness?
Old 04-14-16, 11:11 PM
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I believe the difference between the is somewhere around .030 in. To lower cost i would just provide each adapter with bolts for the s4 and s5 LIM. It would cost a little more but make things super easy for me and the machine guy.

This design is very similar to the rising rpm one utilizing the offset bolts.

Last edited by AaronJ; 04-14-16 at 11:14 PM.
Old 04-15-16, 01:05 AM
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Those dyno charts demonstrate exactly what Mazda set out to achieve with the FD intake manifold - increased mid-range rpm torque through the dynamic effect pressure waves. This is documented in a SAE paper I read years ago.

RaceCast here in Melbourne, Australia has designed and made a 13B-REW LIM to s4/5 block adapter. As part of the adapter, it shapes the steep FD LIM runners to run more horizontally into the block, thereby solving the limitations of the standard FD setup.

Check it out: Series 6 13B intake adapter plate

This in combination with an Xcessive LIM and you have the best of both worlds.
Old 04-15-16, 06:32 AM
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/\..
hey it's only 385 bucks!

adapters..for Everyone..(Wut???)
Old 04-15-16, 06:48 AM
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Originally Posted by KYPREO
Those dyno charts demonstrate exactly what Mazda set out to achieve with the FD intake manifold - increased mid-range rpm torque through the dynamic effect pressure waves. This is documented in a SAE paper I read years ago.

RaceCast here in Melbourne, Australia has designed and made a 13B-REW LIM to s4/5 block adapter. As part of the adapter, it shapes the steep FD LIM runners to run more horizontally into the block, thereby solving the limitations of the standard FD setup.

Check it out: Series 6 13B intake adapter plate

This in combination with an Xcessive LIM and you have the best of both worlds.
That's a nice piece to know about, thank you for sharing.

The only issue I see with that is how that affects clearance with most turbo manifolds, not always enough room to accommodate that step.
Old 04-15-16, 06:56 AM
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Originally Posted by misterstyx69
/\..
hey it's only 385 bucks!

adapters..for Everyone..(Wut???)
AUD385 includes 10%GST which doesn't apply to exports. It would be under USD300 shipped i think.

The other UIM adapter is made by Reaction Racing in Japan. Very nice quality unit with perfect match porting but this will cost you even more.

I'm not convinced turbo clearance will be an issue as the extra thickness of the adapter is partly made up by the fact the FD LIM is steeper doesn't stick out from the engine as far. We'll see when i fit mine.
Old 04-15-16, 10:49 AM
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Another thing you have to factor in the cost of UIM and LIM. An xcessive lim alone is 535 plus the adapter 300plus UIM and throttle body 350. It becomes a 1200 dollar mod quickly.

Last edited by AaronJ; 04-15-16 at 03:44 PM.
Old 04-15-16, 10:50 AM
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Might as well buy a rew
Old 04-16-16, 08:29 PM
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So it seems like this is dying off so I'm assuming that no one wants these


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