2.8 turbo

t-tony

The Legend
Deceased
Supporter
#ZedShed
Joined
Dec 31, 2013
Points
226
Location
Torksey Lock,Lincoln, England
Model of Z
E89 Z4 23i Auto
I always paint M-Tec discs before fitting them. I use CarPlan Aluminium Silver paint.

Tony.
 

Delk

Zorg Guru (III)
British Zeds
Joined
Oct 9, 2018
Points
125
Location
Hemsby Norfolk
Model of Z
Z3 3.0T
Latest addition is an oil cooler. Fit quite well but the engine bay is getting pretty crowded at this point.

I also fitted a remote oil thermostat so it only cools when the oil is hot.

OIl cooler.jpg
Oil filter.jpg
 

Smudgemanuk

Zorg Addict
British Zeds
Joined
Dec 1, 2024
Points
53
Location
Bicester, Oxford
Model of Z
2.8l TU pre-facelift
I am running poly engine mounts, single mass flywheel with non sprung clutch discs, no guibo since it's an upgraded prop shaft with larger u joints, twin eared diff cover
This is a very fun looking build thread ! Maybe one for the future, who knows

I assume with the twin eared diff cover you had to lose the spare wheel carrier?

Chris
 

Delk

Zorg Guru (III)
British Zeds
Joined
Oct 9, 2018
Points
125
Location
Hemsby Norfolk
Model of Z
Z3 3.0T
This is a very fun looking build thread ! Maybe one for the future, who knows

I assume with the twin eared diff cover you had to lose the spare wheel carrier?

Chris
Spare wheel was gone when I got the car. Previous owner put quad exhaust on the rear trying to mimic an M.

Exhaust was nice but I passed it on as I couldn't get something suitable for the turbo to fit without relocating the battery and lots of work.
 

Smudgemanuk

Zorg Addict
British Zeds
Joined
Dec 1, 2024
Points
53
Location
Bicester, Oxford
Model of Z
2.8l TU pre-facelift
Ahh fair enough, a good bit of weight saving.

I am looking to do the twin ear but would rather keep my spare wheel

Good call on the exhaust, you need function over form with a turbo!
 

Delk

Zorg Guru (III)
British Zeds
Joined
Oct 9, 2018
Points
125
Location
Hemsby Norfolk
Model of Z
Z3 3.0T
Started collecting parts for the next upgrade. I want to increase the strength of the diff and cc joints. Already lost one joint.

I have been doing research and have an E36 M3 Evo 210 LSD diff and E32 drive flanges.

Diff will require a 4 bolt input flange and custom mounts. The E32 flanges have a 42mm shaft so fit the bearings but use an inner adaptor flange that the cv bolts to. Stock is around 29mm splines and the E32 are 36mm. This also allows for bigger 108mm cv joints. Will require a little machining to fit the original ABS sensor ring and to get it all to fit.

Fingers crossed. Still need to do some more research and figuring out but I think it will all work.
 

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AlexGSi2000

Regular Member
Joined
Mar 31, 2025
Points
23
Location
Liverpool, UK
Model of Z
3
Just read through this thread, absolutely fantastic.
A friend of mine has recently fitted a built b30 turbo into an e61 - so I have a slight idea about the amount of time effort (and cost) that goes into it.

Heres me thinking swapping my b22 for the b30 will be "enough".
 

Delk

Zorg Guru (III)
British Zeds
Joined
Oct 9, 2018
Points
125
Location
Hemsby Norfolk
Model of Z
Z3 3.0T
Just read through this thread, absolutely fantastic.
A friend of mine has recently fitted a built b30 turbo into an e61 - so I have a slight idea about the amount of time effort (and cost) that goes into it.

Heres me thinking swapping my b22 for the b30 will be "enough".
Mine started with the M54 intake manifold swap and being depressed. A few percent power increase wasnt going to cut it so things spiraled from there. I am reaching the end of the line though. After this I cant see anything else I really want or could upgrade. All I could think of is a full cage and turning it into a track queen and thats not what I want.
 

Delk

Zorg Guru (III)
British Zeds
Joined
Oct 9, 2018
Points
125
Location
Hemsby Norfolk
Model of Z
Z3 3.0T
I was never happy with the hot start and a few items from the first tune on this engine. I ended up taking it to SCS Delta who made the ECU. They are based in Norfolk so it makes it even easier.

They just called with some bad news as they are limiting the engine. I am simply running out of fuel pump at the top end and they cant give it without it going lean. They had it over 600hp but limiting it to 540 at the minute. Not a bad problem to have at all.

They did say that the engine combination is running great and once the fuel supply is sorted out the power level will go up dramatically.

I already have a big pump in the tank and think my only option now is to go back to a stock pump with a seperate surge tank and larger pump for the enigne.
 
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