Borg Warner EFR6758

[nissannewby]

Hi guys.

With a couple of members recently doing this upgrade and a few more asking questions about this I have been taking some happy snaps of a setup I am currently putting together. If anyone has any questions I will try to answer them to the best of my ability.

Regards Newby

[nissannewby]

So first things first. We start with a brand new DTS manifold. I gave this one some love with the die grinder and ported it out a little. It was then time for some ceramic coating.

[MB]

A true Philanthropist you are NNB, most others would try to profit from proven knowledge as such mate!!

[nissannewby]

Now in using the Borg Warner EFR 6758 we use a T25 0.64 sized turbine housing. The T designation of a turbos description (T3,T4, T25 etc) will generally be referring to its flange dimension. Most exhaust manifolds for our TD42 will come with a T3 flange. This means we need to adapt to the smaller T25 of the Borg Warner. I have also had these parts ceramic coated.

[nissannewby]

As you can see the adaptor is a 2 piece item. Here is the part bolted to the manifold using a new T3 gasket as well.



Another angle.

[nissannewby]

Now there isnt a gasket available to go between the 2 parts of the adaptor. The adaptor is a fairly well machined item so would unlikely need any sealant. Ceramic coating is also quite soft. I still used a very small smear of Permatek Copper Gasket (High Temp) when joining the 2 parts.

[MudRunnerTD]

Good job Matty. I think i know the answer but will ask anyway for the sake of the thread.

What is the advantage of Ceramic Coating? How thick is the ceramic and what kind of cost to do the manifold and flanges?

[nissannewby]

Now if you haven't already noticed one of the studs is slightly shorter than the others. This is done to clear the turbine housing. Its a little snug that one.

Turbo mounted onto manifold.



Closer pic of the shorter stud and its location.

[nissannewby]

Ok, so we have everything all tight @MudRunnerTD . Time to put it in its hole. It is very tight to the firewall so we had to use some bolts in place of the studs on the last 2 exhaust ports.

[nissannewby]

Good job Matty. I think i know the answer but will ask anyway for the sake of the thread.

What is the advantage of Ceramic Coating? How thick is the ceramic and what kind of cost to do the manifold and flanges?

The advantage of ceramic coating is it keeps more heat in the gas instead of losing it to the material and then to air. By keeping the heat in gas we can improve the turbo efficiency and also lower engine bay temps. It is not very thick at all but in some instances you do have to remove a little for tolerance fit items. maybe 0.05-0.1mm thick.