Spa turbos aluminum intake manifold for m5x

[Sio2crew]

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Are these brand new ? Anyone have any reviews?

Only issue I see are the missing vacum line connections for wastegate/ bov/ boost controller/ fpr/ not sure if I would drill it or make a vacume line manifold inline with the brake booster?

I can only hope it's designed to out preform the m50 intake? It looks like a more even air distribution under boosted conditions at least. It's as cheap as the un equal length China intake.

Looks like it may be a reasonable f/i upgrade alternative to the m50 ? ( other than Weight? ) a m50 has giant runners for n/a set up. M50 vs this back to back will be an interesting test. (M50 did outperform the schrick aluminum intake according to the internet. )

It says turbo, and it's tested to 10 bar. The tapered runners appear similar in shape and size to the newer generation n series engines.

My only other question is the fuel rail. M50 rail mounts in a different spot vs. Obd2 m52tu m54 stuff?

The throtel body port does appear to be dual drilled. Should fit the newer d.b.w. m54 stuff and the older drive by cable t.b. so no adaptor is needed.

https://spaturbousa.com/products/bmw...l3BMzy13dIS30w

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[325isBimmer]

I just saw this yesterday also, I am interested in buying it. I am looking for something that will peak power higher than 6600rpm. I will most likely be buying it and test it out.

-Mike

[wgknestrick]

I'm not sure the stock throttle cable will reach to that location. I know it wouldn't reach to the EBay manifold I tried to use about a year ago with a similar front inlet/TB.

[BadBoostedBmwM3]

Is that a problem? Meaning you cannot source another cable?

[GG///M3]

Looks new to me


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[328iFun]

What's wrong with the m50 manifold?

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[pbonsalb]

It does not look as fast as this one.

[wgknestrick]

The end inlet manifolds are easier to package (less room), and generally allow for higher HP if designed properly (all else being equal... which it never is). There are fewer and gentler bends the air has to travel in that SPA manifold to get to cyl#1 for sure over an M50. For example, cyl 1 has to flow through the 90 elbow on the TB, then 90deg after the TB in the plenum, then another 90deg into the runner. In the SPA, it goes through 1 less 90 before the TB, 90deg in plenum, then a 30ish deg into the runner) It has potential to make more HP.

If the stock cable doesn't fit, this could be a nagging issue with this setup. The universal cable kits have to be adapted to the E36 pedal and that significantly compromises it's life as its very difficult to fit the ends in the small space by the pedal lever arm. I wouldn't expect a cable kit solution to last much over 30K because they are usually total junk and its tough to align them properly so they don't eat themselves up at the ends with cable\sleeve wear. It is absolutely possible to solve this problem, but it helps to have some engineering experience and equipment (CNC or Nylon/PC 3D printer).

[328iFun]

$500 Yeats!

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[Sio2crew]

Metric Mechanics said they will flow test one if some one wants to mail it to them for testing.

[milKt]

It does not look as fast as this one.

but the m50 intake weighs less,

so it won't go as fast downhill.

[Def]

The runners look shorter than the stock M50 ones, so that should help upper end HP slightly. The larger plenum volume also helps upper RPM power.

[328iFun]

Mythbusted

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[GG///M3]

500.00 (without Biden inflation 375.00)

4202 AGAM

“Come on man” that’s not a bad deal




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[m3j0n]

It does not look as fast as this one.

[Haifisch M3]

so how much boost can the plastic M50 manifold handle before it cracks?

[NOTORIOUS VR]

so how much boost can the plastic M50 manifold handle before it cracks?

People have made over 1000whp with them.

But there are limits and since they're all really old now it's going to be random - this is no real set number. That said if you plan on cramming 50 psi into one it's going to be a good idea to move on to something more robust.

[Haifisch M3]

People have made over 1000whp with them.

But there are limits and since they're all really old now it's going to be random - this is no real set number. That said if you plan on cramming 50 psi into one it's going to be a good idea to move on to something more robust.

yup, old plastic becomes brittle...thought i read somewhere that the M50 manifs aren't good for much over 20 psi...?

[GG///M3]

yup, old plastic becomes brittle...thought i read somewhere that the M50 manifs aren't good for much over 20 psi...?

I wouldn’t say that . Maybe after 25-30psi, but many have pushed more. Heat management is helpful as well.


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[NOTORIOUS VR]

I wouldn’t say that . Maybe after 25-30psi, but many have pushed more. Heat management is helpful as well.


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Exactly - plus if you've ever seen how they move under boost it's clear why some might burst at high boost.

[pbonsalb]

Does it help or hurt to install the metal bracket supports that many leave off?

[Haifisch M3]

Exactly - plus if you've ever seen how they move under boost it's clear why some might burst at high boost.

Does it help or hurt to install the metal bracket supports that many leave off?

where is the weak spot? what part of the mani moves? what do the support brackets look like?

[pbonsalb]

The brackets come up from the block below. Stock part. Many leave them off. I can’t recall whether there are 1 or 2. I still have the one closest the front of the engine.

[MichaelCarter]

About that fuel rail, yeah, the fact that the mounting points are different between the M50 and them later OBD2 engines like M52TU and M54 might give you a bit of a headache. You might be looking at needing some sort of adapter or even having to knock up a custom job if the manifold's not playing ball with both setups.

[pbonsalb]

I don’t know about M52TU or M54, but plenty of us have easily made adapters to attach the M52/S52 fuel rail brackets to the M50/S50 intake manifold. That seems like a minor issue compared to the TB cable that will have to be extended to use this aftermarket manifold.

I am tempted to buy one. The aluminum would be better for my direct port meth, which is now tapped into the plastic M50 manifold.