Does anyone have n54 a single turbo manifold i can rent for measurements

[bmw335ie90]

Hi i have a friend that builds custom manifolds for cars. And we want to build a top mount single turbo manifolds for n54 cars. I want to try and make a few that will be for sale (at a very affordable price) if it comes out good.

The reason for this is SO many n54's are suffering from waste gate rattle. The stock turbo's are weak and costly to repair. Importing a manifold is costly and i would love to see more things made in SA for these cars.

I would love to see more guys going single turbo. By making a good single turbo manifold that's affordable and already made. It will help more single turbo n54's come to life.

So i wanted to if possible rent one from one of you guys. to make sure that its going to fit right. And be perfect for us all to use. I am from the western cape by the way.

 

[akash]

Good on you for taking this on.

The top mount manifold is very complicated in design especially if you going the equal length manifold route.

Have a look at the Doc Race manifold, if you can replicate that, you’ll be on your way. I believe Fsalie ran or runs a ST setup.

 

[bmw335ie90]

Thanks allot,

Yes i know its not going to be easy but i believe we can do it!
I have had a quick look at the Doc Race manifold. But i will look into more detail now. Would help allot if someone has a nice one i can take a look at.

Imagine going single turbo for under R50k...

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If you do most of the installing labor yourself or with a friend to save cost. It must be possible!

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DIY video to show you step by step

 

[corp]

R50k!!!

I didn't realize N54 guys would pay that or more to get this kind of mod.

Are these single turbo mods also a twinscroll design or is it a case of lag lag lag then super power?


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[Girevik77]

R50k!!!

I didn't realize N54 guys would pay that or more to get this kind of mod.

Are these single turbo mods also a twinscroll design or is it a case of lag lag lag then super power?


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Single turbo mod cost me more than double that :rollsmile:

I suppose you could go twin scroll, but depending on the power levels you want to make it's probably going to be case of lag lag lag and then hold on for dear life.

OP good luck with this, it will be great to see more locally produced mods.

 

[bmw335ie90]

If you are fbo already you can do it for under R50000 for sure

 

[bmw335ie90]

But it can get very expensive if you go all out and above 600whp. Those port injection kits and feul pumps cost Allot. Not to mention the other small things. But if you are already full bolt on (like most guys are that want to go single turbo) you can buy a decent turbo for R15000-R20000 if you can get a nice manifold at R6-8000 im sure you can do a single downpipe and bov. And the few parts that remain with the money thats left. If you intall it yourself you should be able to get into the 550-600whp zone with some eth feul mix. For R50k - the bolt ons that most guys already have.

 

[FiRi@Rennzport]

The guys that choose single turbo have a different goal in mind. You can't compare it to stock rattling turbo and offer this as a solution. The cost involved in getting a single turbo to work as reliablly as a twin Turbo n54 is chalk and cheese.

Single turbos users are all heavily modded, and have the aim is big power later on in the range. O2 sensors going are is another concern and tuning it also something you have to think about.

With that being said, drop Afzil a WhatsApp. His been running a single turbo for over 2 years now, and is currently building a jig for top notch top mount manifold which fits well into your bracket.

Pm me if you want his details.

 

[bmw335ie90]

that is true most single turbo guys want the biggest numbers they can get.
But i have seen some guys make good power mid 500whp with e30 mix and fbo setup. On steptronic n54s.
Thanks i did get word of his top mount manifolds and got in contact with him.
Why do the o2 sensors go?

 

[Iceman12596]

that is true most single turbo guys want the biggest numbers they can get.
But i have seen some guys make good power mid 500whp with e30 mix and fbo setup. On steptronic n54s.
Thanks i did get word of his top mount manifolds and got in contact with him.
Why do the o2 sensors go?

02 Sensors 4k each priced them today

 

[bmw335ie90]

But why do they tend to go bad on high hp numbers?

 

[Girevik77]

With the twin turbo setup the 02 sensors are placed downstream of the turbos in the two separate downpipes. With the single turbo conversion you now have to place them upstream of the turbo for them to function correctly as each monitors 3 cylinders respectively.
Unfortunately this relocation seems to be a bit hot for the oem probes and they tend to fry on the regular.

 

[bmw335ie90]

With the twin turbo setup the 02 sensors are placed downstream of the turbos in the two separate downpipes. With the single turbo conversion you now have to place them upstream of the turbo for them to function correctly as each monitors 3 cylinders respectively.
Unfortunately this relocation seems to be a bit hot for the oem probes and they tend to fry on the regular.

Thanks that makes sense. its a pity that the tend to go on the regular...
Nothing you can do to help prevent this?

 

[Girevik77]

There's a few mods floating around, I'm not up to date on all of them.
Some guys install a spacer so that the probe itself is not directly in the gas stream, this tends to make to response from the probe lazy, so I've heard at least.
Others install a heat sink, I've got no idea how effective this is. I recall seeing another solution where an adapter was used, the adapter would screw into your manifold and it served almost like a pocket into which the probe is inserted. The adapter had small holes to allow the gasses to pass through and reach the probe itself, again I have no idea how effective this solution is.

What has served me best so far is a supplier I found in the states that supplies probes supposedly made for the pre-turbo application. I've done about 2000km on them so far and as of yet no issues, touch wood.

 

[Sven 142]

I would love 1 day to go big single turbo, so many amazing videos on Youtube with crazy numbers and I just love seeing the big turbo with a direct mounted air filter just looks bad ass.
Just wondering how much harder this mod is with a RHD car compare to the LHD? You know just for 1 day when I have sold a kidney and can afford a big turbo...

 

[bmw335ie90]

Thanks for the advice Girevik77,
It sounds to be a good option for the sensors,
I am still desperately looking for a top or bottom mount single turbo manifold for n54. If anyone wants to sell it to help the n54 market down in cape town i would love it. :cthulhu:

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I would love 1 day to go big single turbo, so many amazing videos on Youtube with crazy numbers and I just love seeing the big turbo with a direct mounted air filter just looks bad ass.
Just wondering how much harder this mod is with a RHD car compare to the LHD? You know just for 1 day when I have sold a kidney and can afford a big turbo...

I feel the same way you do about it. And i want to help try and make it more affordable for us all by making affordable single turbo manifolds. So that you don't have to sell your kidneys to make your dreams come true :roflol:

 

[akash]

I would love 1 day to go big single turbo, so many amazing videos on Youtube with crazy numbers and I just love seeing the big turbo with a direct mounted air filter just looks bad ass.
Just wondering how much harder this mod is with a RHD car compare to the LHD? You know just for 1 day when I have sold a kidney and can afford a big turbo...

Single turbo on a RHD is a bit more complicated because there is less room to work with since the steering column is in the way.

The downpipe design would be different.

There is however an Australian company thats developed a RHD kit.

But i believe DOC race is developing a RHD kit.

 

[Kish2604]

Get hold of Afzil on the forum, his username is ByByM3... he had a RHD turbo and manifold for sale that came of his car....

 

[bmw335ie90]

Thanks i did get hold of him its just a bit far from me as i stay in cape town.
But i will make a plan.

 

[BMW135 Stage 3]

The guys that choose single turbo have a different goal in mind. You can't compare it to stock rattling turbo and offer this as a solution. The cost involved in getting a single turbo to work as reliablly as a twin Turbo n54 is chalk and cheese.

Single turbos users are all heavily modded, and have the aim is big power later on in the range. O2 sensors going are is another concern and tuning it also something you have to think about.

With that being said, drop Afzil a WhatsApp. His been running a single turbo for over 2 years now, and is currently building a jig for top notch top mount manifold which fits well into your bracket.

Pm me if you want his details.

I have recently done a single turbo on my N54 (E82) and I am making less power (330kW) than what I did on my twins - Stage 3 hybrids (358kW). Could it be because of the custom made manifold?